201230478 六、發明說明： 【發明所屬之技術領域】 本發明係關於電化學裝置電極用黏合劑、其製造方法 、電化學裝置電極用黏合劑之保存方法、電化學裝置電極 用漿料、及電化學裝置電極。更詳言之，係關於用以獲得 如使正極與負極分開之隔離材破損之不良發生率極小之安 全性高之電化學裝置電極用的材料之電化學裝置電極用黏 合劑、其製造方法、電化學裝置電極用黏合劑之保存方法 、電化學裝置電極用漿料、及電化學裝置電極。 【先前技術】 近年來，電子設備之小型化·輕量化之進步有驚人進 展。伴隨於此，於作爲該電子設備之驅動用電源使用之蓄 電池等電化學裝置，亦要求進一步提高小型化·高能量密 度化。因此，爲滿足該種要求，作爲電化學裝置，已使用 鎳氫蓄電池、鋰離子蓄電池等代替鎳鎘蓄電池。 至於製造構成該等電化學裝置之電極之方法，已知有 將由吸收氫之合金或石墨等電極活性物質（以下有時簡稱 爲「活性物質」）、羧基甲基纖維素等增黏劑、含有聚合 物粒子之乳膠所成之黏合劑分散於水中而成之糊料或漿料 塗佈於集電體表面並經乾燥，藉由壓製加工所得塗膜，形 成電極層之方法等。 此處，黏合劑爲具有黏合活性物質之功能以外，亦具 有提高包含活性物質之電極層與集電體之密著性之功能者 -5- 201230478 。至於該種黏合劑已知爲由使包含共軛二烯、芳香族乙烯 化合物、（甲基）丙烯酸酯及乙烯性不飽和羧酸之單體乳 化聚合獲得之乳膠所成者（參照專利文獻1及專利文獻2 ) [先前技術文獻] [專利文獻] [專利文獻1]特開平1 0-24 1 692號公報 [專利文獻2]特開平11-25989號公報 【發明內容】 因此，黏合劑要求難以使含有之聚合物粒子於電解液 中膨潤、與活性物質混合時之分散性或保存安定性良好、 形成之電極層與集電體之密著性高等性能。尤其，對於使 用於油電混合汽車、電動汽車之汽車驅動源使用之蓄電池 中之黏合劑，要求有更高之生產性、安全性等。 然而，專利文獻1、2中記載之組成物（黏合劑）由於 爲使有機粒子分散於分散介質中之狀態，故容易因製造後 之處理或保存環境之改變而出現凝聚體（異物）。如此產 生之凝聚體成爲使電極短路之原因。具體而言，使用產生 凝聚體之組成物（黏合劑）製作之電化學裝置會有極易發 生於電極上產生缺陷而引起起火等問題之虞。爲此，殷切 地期望開發出可製造前述缺陷之發生極少之電極，且異物 減少之新穎黏合劑。再者，要求開發出不易產生異物之保 -6 - 201230478 存方法。 本發明係爲解決如上述之過去技術之課題而完成者， 其目的係提供一種安全性高之電化學裝置，具體而言係提 供一種可使用作爲形成如隔板破損之不良產生率極小，極 不易產生起火等問題之電化學裝置之電極的材料之電化學 裝置電極用黏合劑、其製造方法、電化學裝置電極用漿料 及電化學裝置電極。另外，提供保存電化學裝置電極用黏 合劑而不產生異物之保存方法，可實現所製作之電極良率 之提升。 本發明人等爲達成上述課題而積極檢討之結果，發現 若使用去除具有比隔板厚度大之粒徑的粒子之黏合劑，著 眼於使因前述粒子造成之隔板破損之不良發生率變得極小 ’且藉由去除具有比隔板厚度大之粒徑的粒子之黏合劑， 可達成前述課題，因而完成本發明。 依據本發明，係提供以下之電化學裝置電極用黏合劑 、其製造方法、電化學裝置電極用黏合劑之保存方法、電 化學裝置電極用漿料、及電化學裝置電極。 [1] 一種電化學裝置電極用黏合劑，其係使聚合性單 體聚合而得者，且以測粒儀測定時之每1 mL中之粒徑20μιη 以上之粒子數爲0個。 [2] 如前述[1]所記載之電化學裝置電極用黏合劑’ 其以測粒儀測定時之每1 mL中之粒徑1 5 μιη以上且未逹 20μηι之粒子數爲〇〜35000個。 [3] 如前述[1]或[2]所記載之電化學裝置電極用黏合 201230478 劑，其以測粒儀測定時之每lmL中之粒徑超過1〇μιη且未達 15μιη之粒子數爲0-500000個。 [4] 一種電化學裝置電極用漿料，其係含有如前述 [1]~[3]中任一項所記載之電化學裝置電極用黏合劑（以下 有時簡稱爲「電極用黏合劑」）及電極活性物質。 [5] —種電化學裝置電極，其具備平板狀集電體，及 配置於前述集電體之一面上且於前述集電體之前述一面上 塗佈如前述[4]所記載之電化學裝置電極用漿料而獲得之 電極層。 [6] —種電化學裝置電極用黏合劑之製造方法，其係 具有使聚合性單體聚合獲得含有聚合物之反應液後，將所 得到的前述反應液以深度型（depth type )過濾器或打摺 型（pleats type)過濾器過濾之過濾步驟。 [7] 如前述[6]所記載之電化學裝置電極用黏合劑之 製造方法，其中藉由前述過濾步驟，獲得以測粒儀測定時 每lmL中之粒徑20μιη以上之粒子數爲0個之濾液。 [8] —種電化學裝置電極用黏合劑之保存方法，其係 以以上30t以下之溫度保存含有聚合物粒子及水之電 化學裝置電極用黏合劑，且由塡充並保存有前述電化學裝 置電極用黏合劑之容器之內容積，扣除前述電化學裝置電 極用黏合劑所佔之體積之後之空隙部體積，佔前述容器內 容積之比率（％ )爲1〜20%。 [9] 如前述[8]所記載之電化學裝置電極用黏合劑之 保存方法，其中前述空隙部氛圍之氧濃度爲1 %以下。 -8- 201230478 [10]如前述[8]或[9]所記載之電化學裝置電極用黏合 劑之保存方法，其中前述電化學裝置電極用黏合劑爲如前 述Π]〜[3]中任一項所記載之電化學裝置電極用黏合劑。 本發明之電化學裝置電極用黏合劑以測粒儀測定時之 每lmL中之粒徑20μπι以上之粒子數爲0個，故爲可發揮使 用作爲用以形成因黏合劑中所含粒子造成隔板破損（亦即 ，由粒子貫穿隔板）之不良發生率極小且安全性高之構成 電化學裝置之電極之材料之效果。 本發明之電化學裝置電極用黏合劑之製造方法由於具 有使聚合性單體聚合獲得含有聚合物之反應液後，將所得 到的前述反應液以深度型或打摺型過濾器過濾之過濾步驟 ’故可發揮用以製造形成因黏合劑中所含粒子造成隔板破 損（亦即，由粒子貫穿隔板）之不良發生率極小且安全性 高之構成電化學裝置之電極的電化學裝置電極用黏合劑之 效果。 依據本發明之電化學裝置電極用黏合劑之保存方法， 電化學裝置電極用黏合劑之保存中，難以產生凝聚物等之 異物，可提高製作之電極之良率。 本發明之電化學裝置電極用漿料由於爲含有本發明之 電化學裝置電極用黏合劑，故可發揮使用作爲用以形成因 黏合劑中所含粒子造成隔板破損（亦即，由粒子貫穿隔板 )之不良發生率極小且安全性高之構成電化學裝置之電極 的材料之效果。 ， 本發明之電化學裝置電極由於爲具備將本發明之電化 -9 - 201230478 學裝置電極用漿料塗佈於集電體之一面上獲得之電極層， 故可發揮使用作爲形成因黏合劑中所含粒子造成隔板破損 (亦即，由粒子貫穿隔板）之不良發生率極小且安全性高 之構成電化學裝置之效果。 【實施方式】 以下針對用以實施本發明之形態加以說明，但本發明 並不限於以下之實施形態。亦即，在不脫離本發明意旨之 範圍內，熟悉本技藝者可基於一般知識對以下之實施之形 態加以適當變更、改良等，但應了解該等均屬於本發明之 範圍。 [1]電化學裝置之電極用黏合劑： 本發明之電化學裝置電極用黏合劑爲使聚合性單體聚 合獲得者，且爲以測粒儀測定時之每ImL中之粒徑在20 μιη 以上之粒子數爲〇個者。該電化學裝置電極用黏合劑由於 爲以測粒儀測定時之每ImL中之粒徑在20 μιη以上之粒子數 爲〇個者，故可使用作爲形成因黏合劑中所含粒子造成隔 板破損（亦即，粒子貫穿隔板）之不良發生率極小且安全 性高之構成電化學裝置之電極之材料。 過去之黏合劑由於並未進行去除比特定粒徑大之粒子 之操作，故被認爲含有比特定粒徑大之粒子。因此’電流 流過時若前述較大粒子帶電，則前述較大粒子跨及隔板而 被拉向電極側，並貫穿隔板，而產生貫穿隔板之龜裂之可 -10- 201230478 能性。該種過去之隔板有發生隔板破損之不良（具體而言 ，前述較大粒子貫穿隔板，而產生貫穿隔板之龜裂之不良 )之可能性。而且，隔板破損時，會有因通電而引起電化 學裝置剛硬短路（hard short)之可能性，引起剛硬短路 時，極可能有例如電化學裝置起火之問題。另一方面，依 據本發明之電化學裝置電極用黏合劑，由於不含有會貫穿 隔板而產生貫穿隔板之龜裂般之粒子（比特定粒徑大之粒 子），故可製作無前述問題之安全性高之電化學裝置之電 極。此處，比特定粒徑大之粒子具體而言爲具有與使正極 與負極分開之隔板厚度相同程度大小之粒徑之粒子。又， 隔板之厚度通常爲10~3 0μιη。隔板之厚度比ΙΟμιη薄之過薄 時’容易破損而有成爲電化學裝置不良原因之虞。 本發明之電化學裝置電極用黏合劑只要滿足前述條件 即無特別限制，除前述條件以外，以測粒儀測定時之每 lmL中之粒徑ΐ5μι1ι以上未達2〇μπι之粒子數較好爲〇~35000 個’更好爲0〜4〇00個。另外，以測粒儀測定時之每lmL中 之粒徑超過ΙΟμηι未達15μιη之粒子數較好爲〇〜500000個， 更好爲0〜2 00 000個。如此若特定粒徑之粒子在前述範圍內 ’可進一步降低因該等粒子造成之隔板破損之可能性。另 外’黏合劑容易成爲電阻成分，該黏合劑局部化時，會有 電阻容易增大之缺陷。然而，藉由使特定粒徑之粒子成爲 前述範圍內，黏合劑難以局部化。據此，有難以增大前述 電阻之優點。 本發明係以測粒儀測定每1 mL中之粒子數，且規定區 -11 - 201230478 分每特定粒徑之粒子之數量。亦即，本發明之電化學裝置 電極用黏合劑成爲每lmL中完全不含粒徑20μηι以上之粒子 〇 本發明之電化學裝置電極用黏合劑係如上述，爲使聚 合性單體聚合而獲得者。換S之，爲含有具有源自前述聚 合性單體之構造單位之聚合物，藉由該聚合物而展現作爲 黏合劑之功能。 本發明之電化學裝置電極用黏合劑中，前述聚合物之 固體成分濃度較好爲20~56質量％，更好爲23〜55質量。/。， 最好爲25〜5 4質量％。前述固體成分濃度爲前述範圍內時 ’聚合物之粒子在黏合劑中被安定化（以良好分散狀態存 在）’故有獲得長期安定性優異之黏合劑之優點。前述固 體成分濃度未達20質量％時，會有生產性變低之缺點。亦 即，直接使用由聚合獲得之反應液作爲黏合劑時，有必要 降低由聚合所得之聚合物之濃度。爲此，使生產性變低。 另一方面，超過56質量％時，黏合劑之黏度過度增加，會 有無法充分獲得長期安定性之虞。又，固體成分濃度隨著 係負極用或正極用而不同，例如爲負極用黏合劑之SBR( 苯乙烯-丁二烯共聚物）之固體成分濃度爲40〜55質量％， 爲正極黏合劑之氟丙烯酸乳液之固體成分濃度爲2 0〜5〇質 量％，較好爲2 7~3 3質量％。 本發明之電化學裝置電極用黏合劑只要係使聚合性單 體聚合而得者即無特別限制，爲可作爲正極用或負極用之 黏合劑使用者。 -12- 201230478 正極用黏合劑可例示爲例如日本專利第3 999 927號公 報等所記載之黏合劑。具體而言，可列舉爲包含使由偏氟 化乙烯、可與偏氟化乙烯共聚合之含氟單體、乙烯、丙烯 等烴單體等所成之聚合性單體聚合獲得之聚合物者。 可與偏氟化乙烯共聚合之含氟單體可列舉爲例如氟化 乙烯、三氟乙烯、三氟氯乙烯、四氟乙烯、六氟丙烯、氟 烷基乙烯基醆等。 而且，前述單體以外之單體可列舉爲例如不飽和二元 酸之單酯、碳酸伸乙烯酯等。不飽和二元酸之單酯具體而 言可列舉爲馬來酸單甲酯、馬來酸單乙酯、檸康酸單甲酯 、檸康酸單乙酯等。 負極用黏合劑可例示爲例如特開2010-129186號公報 等所記載之黏合劑。具體而言可列舉爲包含使由共軛二烯 、芳香族乙烯基化合物、（甲基）丙烯酸酯化合物、乙烯 性不飽和羧酸等所成之聚合性單體聚合而得之聚合物者。 至於共軛二烯可列舉爲例如1，3 -丁二烯、異戊間二烯 、2-氯- I,3-丁二烯 '氯丁二烯等。該等中，較好爲丨，3-丁 二烯。聚合性單體之總量中之共軛二烯之使用比例較好爲 33〜48· 5質量％ ’更好爲35〜45質量％。前述使用比例未達 3 3質量％時’所得聚合物之玻璃轉移溫度高，會有所得電 極層之柔軟性或對集電體之密著性降低之傾向。另一方面 ’超過48.5質量％時，會有所得電極層之表面具有黏著性 之傾向’故有成爲壓製加工時電極層貼附於輕上等加工性 者差之虞。 ♦ -13- 201230478 芳香族乙烯基化合物可列舉爲例如苯乙烯、α-甲基苯 乙烯、對·甲基苯乙烯、乙烯基甲苯、氯苯乙烯、二乙烯 基苯等。該等中，以苯乙烯較佳。聚合性單體之總量中之 芳香族乙烯基化合物之使用比例較好爲40~50質量％，更 好爲43〜48質量％。前述使用比例未達40質量％時，使對於 作爲活性物質使用之石墨之相互作用降低，其結果，會有 使所得電極層成爲活性物質容易脫落者之傾向。另一方面 ，超過5 0質量％時，所得聚合物變硬亦成爲脆化性質，會 有所得電極層之柔軟性或對集電體之密著性降低之傾向。 (甲基）丙烯酸酯化合物可列舉爲例如（甲基）丙烯 酸甲酯、（甲基）丙烯酸乙酯、（甲基）丙烯酸正丙酯、 (甲基）丙烯酸異丙酯、（甲基）丙烯酸正丁酯、（甲基 )丙烯酸異丁酯、（甲基）丙烯酸正戊酯、（甲基）丙烯 酸異戊酯、（甲基）丙烯酸己酯、（甲基）丙烯酸2-己酯 、（甲基）丙烯酸辛酯、（甲基）丙烯酸異壬酯、（甲基 )丙烯酸癸酯、（甲基）丙烯酸羥基甲酯、（甲基）丙烯 酸羥基乙酯、（甲基）丙烯酸乙二醇酯等。該等中較好爲 (甲基）丙烯酸甲酯、（甲基）丙烯酸正丁酯、（甲基） 丙烯酸異丁酯，最好爲（甲基）丙烯酸甲酯。 聚合性單體總量中之（甲基）丙烯酸酯化合物之使用 比例較好爲8〜12.5質量％，更好爲9~12質量％。前述使用 比例未達8質暈％時，所得聚合物與電解液之親和性低， 電化學裝置中之黏合劑容易成爲電阻成分。爲此，有使裝 置內部電阻上升之傾向。另一方面，爲12.5質量％時，所 -14 - 201230478 得聚合物成爲對電解液之吸收過大者，於電 易喪失黏著性。因此，高溫保存時容易造成 至於乙烯性不飽和羧酸可列舉爲（甲基 康酸等。聚合性單體總量中之乙烯性不飽和 例較好爲0.1〜2 0質量％，更好爲0.2~15質量 比例未達0.1質量％時，在調製電化學裝置電 聚合物粒子之分散安定性不足，容易產生凝 結果，有容易產生所得電極層對集電體之密 題之傾向。另一方面，超過20質量％時，在 極用漿料調製後之保存過程中，有產生經時 升，容易成爲塗佈性差之漿料之傾向。 作爲聚合性單體，除前述單體以外，列 基）丙烯醯胺、N-羥甲基丙烯醯胺等乙烯性 烷基醯胺：乙酸乙烯酯、丙酸乙烯酯等羧酸 性不飽和二羧酸之酸酐、單烷酯、單醯胺類 烯醯胺、二甲胺基甲基甲基丙烯醯胺、甲胺 烯醯胺等乙烯性不飽和羧酸之胺基烷基醯胺 烯腈、α-氯丙烯腈等氰化乙烯系化合物等。 又，本發明之電化學裝置電極用黏合劑 物以外，亦可含有後述之聚合步驟中使用之 起始劑'分子量調節劑等。 [2]電化學裝置電極用黏合劑之製造方: 本發明之電化學裝置電極用黏合劑之製 化學裝置中容 電池劣化。 )丙儲酸、衣 羧酸之使用比 %。前述使用 極用獎料時， 聚物。爲此， 著性降低等問 電化學裝置電 之漿料黏度上 舉爲例如（甲 不飽和羧酸之 乙烯酯；乙烯 :胺基乙基丙 基丙基甲基丙 ;(甲基）丙 ’除前述聚合 乳化劑、聚合 造方法爲製造 -15- 201230478 上述之本發明電化學裝置電極用黏合劑之方法，將所得到 的反應液爲具有使聚合性單體聚合獲得含有聚合物之反應 液後，以深度型或打摺型過濾器過濾之過濾步驟者。由於 具有該步驟，故可製造用以形成因黏合劑中所含粒子造成 之隔板破損（亦即，隔板因粒子而貫穿）之不良發生率極 小且安全性高之構成電化學裝置之電極之電化學裝置電極 用黏合劑。又，電極用黏合劑通常不需在無塵室等配備之 環境下製造。 [2_1]聚合步驟： 本發明之電化學裝置電極用黏合劑之製造方法中，使 聚合性單體聚合獲得含有聚合物之反應液（聚合步驟）之 方法可採用過去習知之方法。可列舉爲例如特開2010-129186號公報、日本專利第3999927號公報等所記載之方 法。 具體而言，製作正極用黏合劑時，可列舉爲藉由以懸 浮聚合、乳化聚合、溶液聚合等方法使偏氟化乙烯等聚合 性單體聚合而獲得含聚合物之反應液之方法。該等中，就 後處理容易等方面而言，較好爲水性懸浮聚合、乳化聚合 ，最好爲水性懸浮聚合。 懸浮聚合中，懸浮劑可使用例如甲基纖維素、甲氧基 化甲基纖維素、丙氧基化甲基纖維素、羥基乙基纖維素、 羥基丙基纖維素、聚乙烯醇、聚環氧乙烷、明膠等。因此 ，懸浮劑較好以對於分散介質（例如水）爲0.005〜1.0質 -16- 201230478 量％之範圍添加，更好以0.01-0.4質量％之範圍添加。 聚合起始劑可使用例如過氧基二碳酸二異丙酯、過氧 基二碳酸二正丙酯、過氧基二碳酸二正五氟丙酯、異丁基 過氧化物、二（氯氟醯基）過氧化物、二（全氟醯基）過 氧化物等。前述聚合起始劑之使用量相對於聚合性單體之 總量100質量份，較好爲0.1〜5質量份，更好爲0.3~3質量 份。 另外，懸浮聚合中亦可添加鏈轉移劑。鏈轉移劑可列 舉爲例如乙酸乙酯、乙酸甲酯、丙酮、乙醇、正丙醇、乙 醛、丙醛、丙酸乙酯、四氯化碳等。鏈轉移劑之使用量通 常相對於聚合性單體之總量100質量份，較好爲0.05〜10質 量份，更好爲0.1〜5質量份。 聚合性單體之合計饋入量以聚合性單體之總量：分散 介質之質量比計，較好爲1: 1〜1: 10，更好爲1: 2〜1: 5 。而且，聚合條件在l〇~50°C可爲10〜1〇〇小時。 又，製作負極用黏合劑時，可列舉使聚合性單體在水 性介質中，於乳化劑、聚合起始劑及分子量調節劑之存在 下，經乳化聚合獲得含有聚合物之反應液之方法。 至於乳化劑可單獨或組合兩種以上之陰離子性界面活 性劑、非離子性界面活性劑、兩性界面活性劑等。陰離子 性界面活性劑，可使用高級醇之硫酸酯、烷基苯磺酸鹽、 脂肪族磺酸鹽、聚乙二醇烷基醚之硫酸酯等。非離子性界 面活性劑可使用聚乙二醇之烷酯型者、烷基醚型者、烷基 苯基醚型者等。兩性界面活性劑之具體例可使用陰離子部 -17- 201230478 分爲羧酸鹽 '硫酸酯鹽、磺酸鹽、磷酸酯鹽，陽離子部分 爲胺鹽、四級銨鹽者。更具體而言，可例示爲月桂基甜菜 鹼、硬脂基甜菜鹼等甜菜鹼類，月桂基-β·苯胺、月桂基 二（胺基乙基）甘胺酸、辛基二（胺基乙基）甘胺酸等胺 基酸類型者。乳化劑之使用量相對於所用聚合性單體之總 量100質量份，較好爲0.5〜5質量份。 作爲聚合起始劑，可單獨或組合使用兩種以上之過硫 酸鈉、過硫酸鉀、過硫酸銨等之水溶性聚合起始劑，過氧 化苯甲醯、月桂積過氧化物、2,2’-偶氮雙異丁腈等之油溶 性聚合起始劑、與亞硫酸氫鈉等之還原劑組合之氧化還原 系聚合起始劑等。聚合起始劑之使用量，相對於聚合性單 體之總量100質量份，較好爲0.3〜3質量份。 作爲分子量調節劑，可使用氯仿、四氯化碳等鹵化烴 類、正己基硫醇、正辛基硫醇、正十二烷基硫醇、第三-十二烷基硫醇、硫乙醇酸等之硫醇類、二硫化二甲基黃原 酸酯、二硫化二異丙基黃原酸酯等之黃原酸酯類、松油醇 、α -甲基苯乙烯二聚物等之通常乳化聚合中使用者。分 子量調節劑之使用量，相對於聚合性單體之總量1 00質量 份，通常爲5質量份以下。 乳化聚合可以一階段乳化聚合但較好爲兩階段乳化聚 合。兩階段乳化聚合時’第一階段之乳化聚合，較好係聚 合溫度爲例如40〜80t，聚合時間爲例如2〜4小時之條件， 聚合轉化率較好爲5 0 %以上，更好爲6 0 %以上。而且，第 二階段之乳化聚合，較好係聚合溫度爲例如4 0〜8 0 t，聚 -18- 201230478 合時間爲例如2~6小時之條件。 又，所得反應液中之聚合物，只要可使本發明之電化 學裝置電極用黏合劑發揮作爲黏合劑之功能，則無特別限 制，但較好數平均粒徑爲50〜400nm，更好爲1〇〇〜300nm。 此處’本說明書中之「數平均粒徑」爲利用濃厚系粒徑分 析儀「FPAR-1 0 00」（商品名）（大塚電子公司製）測定 之値。 又，前述聚合物較好玻璃轉移溫度爲- 50~ + 25°C，更 好爲-3 0〜+ 5 °C。此處，本說明書中之「玻璃轉移溫度」爲 將黏合劑塗佈於玻璃板上，在120 °C乾燥1小時，藉此形成 聚合物膜，針對所得聚合物膜，使用示差掃描熱量計（例 如精工墊子工業公司製之「示差掃描熱量計」）測定之玻 璃轉移溫度（Tg)。 [2-2]過濾步驟： 本發明之電化學裝置電極用黏合劑之製造方法中，將 如上述獲得反應液，以深度型過濾器或打摺型過濾器過濾 ，獲得以測粒儀測定時之每lmL中粒徑20μπι以上之粒子數 爲〇個之濾液》 此處，本說明書中之所謂深度型過濾器，爲亦稱爲深 層過濾或體積過濾型之過濾器之高精度過濾之過濾器。此 種深度型過濾器有將形成有多數孔之過濾膜層合成爲層合 構造者、或將纖維束捲高者等。至於深度型之過濾器，具 體舉例有 PROFILE II、NEXIS ΝΧΑ、NEXIS ΝΧΤ、 -19- 201230478 POLYFINE XLD、ULTIPLEAT PROFILE 等（均爲日本 PLOE公司製造）、深度匣式過濾器、單匣式過濾器等（ 均爲ADVENTEC公司製）、CP過濾器、BM過濾器等（均 爲 CHISSO公司製）、SLOPE PURE > DAI ' MICRO CILIA (均爲RO KI TECHNO公司製）等。 至於深度型之過濾器，較好使用額定過濾精度爲 1.0〜20μιη者，更好使用5』〜ΙΟμπι者。藉由使用額定過濾 精度在前述範圍者，可效率良好地獲得以測粒儀測定時之 每lmL中粒徑20μηι以上之粒子數爲0個之濾液。又，由於 捕捉於過濾器之粗大粒子數成爲最小限度，故可延長過濾 器之可使用期間。 又，所謂深度型過濾器爲將由不織布、濾紙、金屬網 等所成之精密過濾膜片打摺加工後，成形爲筒狀同時液密 地密封前述膜片之打摺接縫，且液密地密封筒的兩端所得 之筒狀高精度過濾之過濾器。 所謂打摺型之過濾器較好使用額定過濾精度爲 1.0~20μιη者，更好使用5.0~10μηι者。藉由使用額定過濾 精度在前述範圍者，可效率良好地獲得以測粒儀測定時之 每lmL中粒徑20μηι以上之粒子數爲0個之據液。又，由於 捕捉於過濾器之粗大粒子數成爲最小限度，故可延長過濾 器之可使用期間。 作爲打摺型過濾器，具體可舉例爲HDC II、 POLYFINE II等（均爲日本POLE公司製）、ΡΡ打摺匣式過 濾器（ADVENTEC 公司製）'POROUSFINE (爲 CHISSO公 -20- 201230478 司製）、CERTAIN PORE、MICRO PURE (均爲 R〇KI TECHNO公司製）等。 過濾時之條件（過濾器前後之壓力差（壓差）、液溫 等）只要可獲得以測粒儀測定時之每lmL中粒徑20μπι以上 之粒子數爲〇個之濾液則無特別限制。例如，壓差只要不 超過所用過濾器之最大耐壓差之範圍適宜設定即可，但具 體而言，較好爲0.2〜0.4MPaG。且液溫較好爲10〜50°C。 過濾步驟中，可使用例如圖1所示之過濾裝置100。過 濾裝置100具備有儲存及供給異物去除前之電化學裝置電 極用黏合劑之供給槽1、用以使異物去除前之電化學裝置 電極用黏合劑以一定流量流動之定量泵2、具有匣式過濾 器（未圖示）及收納（安裝）該匣式過濾器之外殼之過濾 器4、位於定量泵2與過濾器4之中途之脈動防止器3、配置 於脈動防止器3與過濾器4之間之第一壓力計7a、及配置於 過濾器4下游之第二壓力計7b。而且，過濾裝置100具備有 使黏合劑自過濾器4回到供給槽1之反迴導管6及將利用過 濾器4過濾之電化學裝置電極用黏合劑排出之排出導管5。 於過濾裝置1〇〇中，將前述聚合步驟所得之反應液， 自供給槽1以定量栗2升壓並供給至脈動防止器3。有因定 量泵2引起之脈動時，利用脈動防止器3減低脈動。自脈動 防止器3排出之反應液，供給至過濾器4，去除異物後，通 過排出導管5予以回收。回收之回收液即爲電化學裝置電 極用黏合劑。此處，本說明書中之所謂「異物」爲粒徑 2〇μπι以上之粒子。又，前述粒子只要粒徑爲20μιη以上， -21 - 201230478 則其材質並未特別限制，可爲金屬、樹脂、該等之 等。 通過排出導管5予以回收之液體之異物未充分 ，亦可不將回收液作爲電化學裝置電極用黏合劑而 通過返回導管6回到供給槽1，在以過濾器4過濾。 未以定量泵2產生脈動時，亦可不配置脈動防止器3 ，於反應液黏度較高時，藉由對供給槽、導管或該 加溫，可使之成爲反應液黏度。亦即，亦可進而具 給槽、導管或該等兩者加溫之加溫手段。如此，於 黏度較高時可提高生產性。 又，過濾裝置1〇〇雖具備第一壓力計7a及第二 7b，但亦可使用不具備壓力計之過濾裝置。但，藉 第一壓力計7a及第二壓力計7b，可管理過濾器產生 而使過濾器發揮正常功能。且，替代供給槽1，亦 運用容器直接供給異物去除前之電化學裝置電極用 。因此，過濾裝置1 00雖爲使用1個過濾器4之例， 使用複數個過濾器。使用複數個過濾器時，複數個 可串聯連接，亦可並聯連接。 [3]電化學裝置電極用黏合劑之保存方法： 本發明之電化學裝置電極用黏合劑之保存方法 良好地（亦即以不發生異物之狀態）長時間保存含 物粒子及水之電化學裝置電極用黏合劑。因此，本 保存方法可較好地採用作爲以上述方法所製作之每 混合物 去除時 返回， 且，於 。再者 等兩者 備使供 反應液 壓力計 由具備 之壓差 可自搬 黏合劑 但亦可 過濾器 ，係可 有聚合 發明之 1 m L中 22- 201230478 粒徑20μηι以上之粒子數爲〇個之電化學裝置電極用 之保存方法。尤其，於電化學裝置電極用黏合劑中 聚合物含有易凝聚之聚合物（例如氟系聚合物）時 良好地發揮本發明之保存效果。 本發明之保存方法，必須以2〜3 0 °C之溫度保存 化學裝置電極用黏合劑，較好爲10〜2 5°C。超過前 之上限値時，在長時間保存期間，於空隙部與電化 電即用黏合劑之介面中與容器之壁面接觸之部分聚 子會凝聚而發生異物。因此，無法長時間安定地保 達前述範圍下限値時，於前述電化學裝置電極用黏 聚合物粒子會凝聚，發生凝膠狀物或異物。因此， 時間安定地保存。 本發明之保存方法，由塡充並保存有前述電化 電極用黏合劑之容器之內容積，扣除前述電化學裝 用黏合劑所佔之體積之後之空隙部體積，佔前述容 積之比率（％ )(以下，亦稱爲「空隙率」）： 1~20%，較好爲3〜15%，更好爲5-10%。空隙率若 述範圍之上限値，則於保存溫度產生變化時，水份 變多，其結果，於氣液介面（空隙部與電化學裝置 黏合劑之介面）會發生聚合物粒子凝聚，而發生異 此，無法安定地保存。若空隙率未達前述範圍之下 則隨著保存溫度之變化引起電化學裝置電極用黏合 積變化時，會發生容器變形或容器破裂。因此’無 地保存。 黏合劑 含有之 ，可更 前述電 述範圍 學裝置 合物粒 存。未 合劑中 無法長 學裝置 置電極 器內容 必須爲 超過前 揮發量 電極用 物。因 限値， 劑之體 法安定 -23- 201230478 本發明之保存方法中，空隙部氛圍之氧濃度較好爲 1 %以下。空隙部氛圍之氧濃度若在前述範圍內，在長時 間保存期間之黏合劑成分（電化學裝置電極用黏合劑中所 含成分）不會氧化、變質，可抑制聚合物粒子之凝聚。因 此，可有效地抑制異物產生。氧濃度係使用氧濃度計（ JIKCO公司製，型號「OXY-1S」），測定剛使容器密閉前 之空隙部濃度之値。 本發明之保存方法自保存電化學裝置電極用黏合劑之 容器之金屬離子溶出率較好爲5〇ppm以下。若金屬離子溶 出於電化學裝置電極用黏合劑中，則電化學裝置電極用黏 合劑中有助於聚合物粒子分散之粒子表面之Γ電位平衡會 崩解。因此，容易發生凝聚。因含有如此凝聚之聚合物粒 子，無法形成平滑之活性物質層，於製作蓄電裝置時，凝 聚之聚合物粒子會穿破隔板，而發生使正極與負極間短路 等之致命缺陷之可能性高，故而不佳。 又，作爲使該種金屬離子之溶出較少之容器，較好爲 以玻璃製、樹脂製之材質所構成。例如可較好地使用由特 開昭59-03 5043號公報所製造之乾淨容器。 依據本發明之保存方法，即使保存期間於6個月、12 個月、18個月依次延長保存中，電化學裝置電極用黏合劑 之品質亦幾乎無變化。又，亦不會生成凝膠狀物。因此， 以與使用剛製造後之電化學裝置電極用黏合劑形成活性物 質層之相同條件，可形成同樣之活性物質層。又，可提高 電化學裝置電極用黏合劑之生產性的效果，於保存期間長 -24- 201230478 如6個月、12個月、18個月其效果亦大。 [4]電化學裝置電極用漿料： 本發明之電化學裝置電極用獎料爲含有上述之本發明 電化學裝置電極用黏合劑及電極活性物質者。該種電化學 裝置電極用漿料由於係含有本發明之電化學裝置電極用黏 合劑者，故可使用作爲用以形成因前述黏合劑中所含粒子 而使隔板破損（亦即隔板被粒子所貫通）不良之發生率極 少且安全性高之構成電化學裝置之電極之材料。本發明之 電化學裝置電極用漿料可藉由使本發明之電化學裝置電極 用黏合劑與電極活性物質混合而調製。 [4-1]電極活性物質： 電極活性物質並未特別限定。於使用於鋰離子蓄電池 電極時，作爲負極用，可使用碳、藉由使例如酚樹脂、聚 丙烯腈、纖維素等之有機高分子化合物燒成而得之碳材料 、藉由使焦炭或瀝青燒成而得之碳材料、人造石墨、天然 石墨等。又’使用於電雙層電容器電極時，可使用活性碳 、活性碳纖維、二氧化砂、氧化銘等。又，使用於鋰離子 電谷器電極時，可使用石墨、難石墨化之碳、硬碳、焦炭 等之碳材料或聚并苯系有機半導體（P AS )等。 本發明之電化學裝置電極用漿料中，亦可含有增黏劑 、六偏磷酸鈉、三聚磷酸鈉、聚丙烯酸鈉等分散劑、作爲 乳膠之安定劑之非離子性或陰離子性界面活性劑、消泡劑 -25- 201230478 等添加劑。 本發明之電化學裝置電極用漿料中，相對於電極活性 物質100質量份，較好以電極用黏合劑之固體成分爲 0·1〜10質量份之比例含有，更好爲0.3〜4質量份。電極用 黏合劑之固體成分之比例過小時，有無法獲得良好密著性 之傾向。另一方面，電極用黏合劑之固體成分比例過大時 ’有使過電壓上升而對電池特性帶來影響之傾向。 本發明之電化學裝置電極用漿料之調製中，作爲使電 化學裝置電極用黏合劑、電極活性物質、依需要使用之添 加劑混合之手段’可舉例有攪拌機、脫泡機、珠粒硏磨機 、高壓均質機等。又，電極用漿料之調製可在減壓下進行 。藉由在減壓下進行，可防止所得電極層內產生氣泡。 本發明之電化學裝置電極用漿料中之電化學裝置電極 用黏合劑之固體成分換算之含有比例，相對於電極活性物 質100質量份，較好爲0.1〜3質量份，更好爲0.5〜2質量份 。前述含有比例未達0.1質量份時，有無法獲得電極層與 集電體之良好密著性之虞。另一方面，若超過3質量份， 則有難以充分提高電池特性之虞。 [5]電化學裝置電極： 本發明之電化學裝置電極爲具備平板狀集電體，及配 置於該集電體之一面側上藉由於集電體一面上塗佈上述之 本發明之電化學裝置電極用漿料而得之電極層者。此種電 化學裝置電極，由於具備於集電體一面上塗佈本發明之電 -26- .201230478 化學裝置電極用漿料而得之電極層，故可構成因前述黏合 劑中所含粒子而使隔板破損（亦即隔板被粒子所貫通）不 良之發生率極少且安全性高之電化學裝置。本發明之電化 學裝置電極之製造方法，係首先將本發明之電化學裝置電 極用黏合劑塗佈於平板狀之集電體表面上並經乾燥處理， 而於集電體上形成塗膜獲得層合體。隨後，將所得層合體 於厚度方向壓製加工。如此可製作本發明之電化學裝置電 極。且，於自保存後之電化學裝置電極用黏合劑形成活性 物質層，只要是例如於與通常同樣地保存後之電化學裝置 電極用黏合劑中添加活性物質獲得組成物後，將該組成物 塗佈於集電體上即可。 [5-1]集電體： 作爲集電體，可使用由金屬箔、蝕刻金屬箔、壓延金 屬等所成者。作爲構成集電體之材料，可對應於成爲目的 之電化學裝置之種類，自鋁、銅、鎳、鉬、不銹鋼、鈦等 金屬材料適當選擇使用。且，集電體之厚度，於例如構成 鋰離子蓄電池用之電極時，爲5〜30μιη，較好爲8~25μιη。 而且，例如構成電雙層電容器用之電極時，爲5〜ΙΟΟμιη， 較好爲10〜70μιη，更好爲15~30μηι。 [5 - 2 ]電極層： 如上述，電極層係配置於集電體之一面（例如表面） ，於將本發明之電化學裝置電極用漿料塗佈於集電體一面 -27- 201230478 上所得者。至於塗佈電化學裝置電極用漿料之方法，可適 當採用以往公知之方法。例如可舉例有旋轉塗佈法（ spincoat )、澆鑄塗佈法、輥塗佈法、狹縫及旋轉塗佈法 、刮刀塗佈法、逆輥塗佈法 '柯馬棒（c〇mma bar )塗佈 法、凹版塗佈法、氣刀塗佈法等。 又’作爲由電化學裝置電極用漿料所成之塗膜之乾燥 處理條件，處理溫度較好爲例如2〇〜250°C，更好爲 50〜150°C。且’處理時間爲例如1〜12〇分鐘，更好爲5〜60 分鐘。 又’作爲壓製加工手段，可利用高壓超壓製機、軟軋 光機、1噸壓製機等。作爲壓製加工條件，係對應於所用 加工機適宜設定。如此形成之電極層，例如厚度爲 40~100μιη，密度爲 1.3 〜2.0g/cm2。 [6]電化學裝置： 如上述所得之電化學裝置電極可較好地使用作爲例如 鋰離子蓄電池、電雙層電容器、鋰離子電容器等之電化學 裝置之電極。又，電化學裝置一般具備有集電體及形成於 該集電體表面之由包含正極用黏合劑之電極層所成之正極 、集電體及形成於該集電體表面之由包含負極用黏合劑之 電極層所成之負極、配置於前述正極及上述負極之間之隔 板，該隔板厚度，如上述，通常爲1〇〜30 μηι。隔板厚度小 於ΙΟμπι而過薄時，有因振動等容易破損而成爲電化學裝 置不良原因之虞。隔板可由多孔膜所成者，其材質可舉例 -28- 201230478 有例如聚丙烯、聚乙烯等。 於使用所得之電化學裝置電極構成鋰離子蓄電池時， 作爲電解液，係使用將由鋰化合物所成之電解質溶解於溶 劑中者。 作爲電解質，舉例有例如LiC104、LiBF4、Lil、LiPF6 、L1CF3SO3 ' LiAsF6 ' LiSbF6、LiAlCl4、LiCl、LiBr、 LiB ( C2H5 ) 4 ' L1CH3SO3 ' L1C4F9SO3 ' Li ( C4F3S02 ) 2N 、Li[ ( C〇2) 2]2B等。 作爲溶劑，舉例有例如碳酸伸丙酯、碳酸伸乙酯、碳 酸伸丁酯 '碳酸二甲酯、碳酸二乙酯、碳酸甲酯乙酯等之 碳酸酯類；r-丁內酯等之內酯類；三甲氧基矽烷、ι，2-二 甲氧基乙烷、二乙醚、2-乙氧基乙烷、四氫呋喃、2-甲基 四氫呋喃等醚類；二甲基亞颯等亞颯類；1，3-二氧雜環戊 烷、4-甲基-1，3-二氧雜環戊烷等氧雜環戊烷類；乙腈、硝 基甲烷等之含氮化合物：甲酸甲酯、乙酸甲酯、乙酸丁酯 、丙酸甲酯、丙酸乙酯、磷酸三乙酯等酯類；二甘醇二甲 醚、三甘醇二甲醚、四甘醇二甲醚等甘醇二甲醚類；丙酮 、二乙基酮、甲基乙基酮、甲基異丁基酮等酮類；環丁颯 等颯類；2-甲基-2-噁唑烷酮等之噁唑烷酮類；1，3-丙烷磺 內酯、4-丁烷磺內酯、萘磺內酯等磺內酯類等。 又，使用本發明之電化學裝置電極構成電雙層電容器 時，係使用於前述溶劑中，溶解四氟硼酸四乙基銨、四氟 硼酸三乙基甲基銨、六氟磷酸四乙基銨等之電解質所成之 電解液。 S. -29 - 201230478 又’使用本發明之電化學裝置電極構成鋰離子電容器 時’可使用構成前述鋰離子蓄電池時相同之電解液。 [實施例] 以下基於實施例及比較例具體說明本發明，但本發明 並不限定於該等實施例及比較例者。又，實施例中所記載 之「份」及「％」若無特別記載則爲質量基準。又，各種 物性値之測定方法以及諸特性之評價方法如下所示。 [數平均粒徑]: 針對黏合劑，使用附有自動取樣儀之濃厚系粒徑分析 儀「FPAR1 000」（大塚電子公司製）予以測定。又，於 異物去除（過濾步驟）前後之粒子中若數乎均粒徑並無變 化，則異物去除後之電化學裝置電極用黏合劑可評價爲作 爲黏合劑之諸特性無變化（亦即作爲電化學裝置電極用黏 合劑維持與以往黏合劑相同功能）。 [每lmL中之粒子數]: 使用Particle Sizing Systems製之個數記數式粒度分佈 測定器「Accusizer 7 8 0APS」作爲粒子計數計予以測定。 具體而言，以超純水重複空白測定直至所測定之粗大粒子 之數成爲「4000個/毫升（0·56μιη )」（亦即，「粒徑大 於0.56μπι之粒子在1ml中爲4000個以下」）爲止。隨後， 準備以超純水稀釋10〇倍之黏合劑（樣品）100ml，將該樣 -30- 201230478 品設定於前述粒度分佈測定器中。設定後，利用前述粒度 分佈測定器，以成爲最佳濃度之方式自動進行樣品之稀釋 。隨後，利用前述粒度分佈測定器測定兩次前述樣品中每 lmL中粒子數，算出平均値。將該平均値乘以1〇〇倍，作 爲黏合劑每ImL中粒子數。 [剛硬短路之有無]: 首先，製作正極及負極。以下具體加以說明。 (負極之製作） 於雙軸型行星式混合機（PRIMIX公司製之「TK HIBISMIX 2P-03」）中投入以固體成分換算爲！份之作爲 增黏劑之DAICEL化學公司製之「CMC2200」、以固體成 分換算爲100份之作爲負極活性物質之石墨、以及水68份 ，於6 0 rp m進行攪拌1小時。隨後，添加以所含之聚合物 固體成分換算爲1份之異物去除前或異物去除後之電化學 裝置電極用黏合劑，再進行攪拌1小時，獲得糊膏。於所 得糊膏中投入34份水後，使用攪拌脫泡機（THINKY公司 之製品名「脫泡練太郎」），進行於2 00rpm攪拌2分鐘， 於1 800rpm攪拌5分鐘，在真空下於1800rpm攪拌1.5分鐘之 依序攪拌混合，調製電化學裝置用漿料。 接著，於自銅箔所成之集電體（平板狀集電體）表面 上，利用刮刀塗佈法以成爲乾燥後膜厚成爲1 0 0 μ m之方式 ，均一塗佈所調製之電化學裝置用漿料，在120 °C進行20 -31 - 201230478 分鐘乾燥處理，在集電體表面上形成乾燥漿料層。隨後， 以使所得電極層密度成爲1.5 g/cm3之方式，以輥壓製機對 表面上形成乾燥漿料層之集電體進行壓製加工。如此，調 製由前述集電體及在該集電體表面（一面）上形成之電極 層所成之負極。 (正極之製作） 首先，於雙軸型行星式混合機（TK HIBISMIX 2P-03 :PRIMIX公司製）中投入4份（以固體成分換算）之PCdF (聚偏氟化乙烯）、1〇〇份（以固體成分換算）之作爲正 極活性物質之磷酸鐵鋰、5份（以固體成分換算）之作爲 導電劑之乙炔黑、25份之N-甲基吡咯烷酮（NMP )，於60 rpm進行攪拌1小時。隨後，再添加10份之NMP後，使用攪 拌脫泡機（脫泡練太郎：THINKY公司製），進行於 2〇Orpm攪拌2分鐘，於1800rpm攪拌5分鐘，在真空下於 1 8 OOrpm攪拌1.5分鐘之依序攪拌混合，調製正極用漿料。 接著，於自鋁箔所成之集電體（平板狀集電體）表面 上，利用刮刀塗佈法以成爲乾燥後膜厚成爲90μπι之方式 ，均一塗佈所調製之正極用漿料，在120 °C進行20分鐘乾 燥處理，在集電體表面上形成乾燥漿料層。隨後，以使所 得電極層密度成爲3.8g/cm3之方式，以輥壓製機對表面上 形成乾燥漿料層之集電體進行壓製加工。如此，調製由前 述集電體及在該集電體表面（一面）上形成之電極層所成 之正極。 -32- 201230478 (蓄電池之製作） 接著，將由長方形狀之鋁箔膜所成之外包裝鋁密封片 兩片予以層合，在該等外包裝鋁密封片之4個外周邊中之3 邊相互接合留下1邊未接合而成之外包裝體內，載置切成 50mmx25mm之前述負極。接著，於該負極上，載置切成 54mmx27mm之聚乙烯製多孔膜所成之隔離材（商品名「 CELGUARD#2400」）（C E L GU A RD 公司製，厚度 2 5 μιη )，同時以不使空氣進入之方式於該外包裝體內注入電解 液。隨後，於前述隔離材上（與負極爲相反側之位置）載 置切成48mmx 23 mm之前述正極。隨後，以加溫密封裝置 ，將前述外包裝體之未接合之1邊以熱壓著予以接合封裝 ，藉此製作由兩極式單層層合胞（cell )所成之蓄電池（ 電化學裝置）。又，使用之電解液爲於碳酸伸乙酯/碳酸 甲酯乙酯=1/1之溶劑中，以1莫耳/升之濃度溶解LiPF62 溶液。該等操作係在手套箱中進行。 接著，依據前述製作方法製作1〇〇個蓄電池，對於所 製作之蓄電池進行60 °C保存試驗。具體而言，將以定電流 (0.2C)-定電壓（4.2V)方式，進行充電2.5小時，以定 電流（0.2C )方式放電，再度以定電流（0.2C )-定電壓 (4.2V )方式進行充電2.5小時之1〇〇個蓄電池，在設定於 6 0°C之恆溫槽中放置30天。接著，測定30天放置後之各蓄 電池之開電路電壓（OCV )進行評價。關於評價，以〇cv 降低傾向作爲剛硬短路發生之指標。具體而言，若發生顯 -33- 201230478 著之電壓下降（若可確認到〇cv降低），則判斷爲於剛硬 短路，於發生急遽電壓下降（瞬間電壓下降時）之情況’ 則判斷有剛硬短路。 [良品率（％)]: 由前述「剛硬短路之有無」之評價算出蓄電池之良品 率（％ )。具體而言，由式：蓄電池之良品率（％ ) =[ {( 實施剛硬短路之有無試驗之蓄電池個數）一（發生剛硬短 路之蓄電池個數）}/ (實施剛硬短路之有無試驗之蓄電 池個數）]x 100算出。良品率（％ )若爲98%以上則判斷爲 「良好」，若爲99%以上，則由於生產性極爲提高而可判 斷爲「更良好」。 (實施例1 ) 於配備攪拌機之可調節溫度之反應器中，一次饋入水 200份、十二烷基苯磺酸鈉〇.1份、過硫酸鉀1.〇份 '亞硫 酸氫鈉0.5份、甲基苯乙烯二聚物〇.2份、十二烷基硫醇 0.1份、由作爲共軛二烯之丁二烯6.0份、作爲芳香族乙烯 基化合物之苯乙烯12.5份、作爲（甲基）丙烯酸酯化合物 之甲基丙烯酸甲酯3.5份、作爲乙烯性不飽和羧酸之丙烯 酸〇 · 5份以及衣康酸2 · 5份所成之聚合性單體（單體組成物 (a) ) 25份’使前述反應器內升溫至70 °C，進行2小時聚 合反應（第一階段）。 接著’確認聚合轉化率爲80%以上後，將反應器內溫 34 - 201230478 度維持在70 °C，以6小時之時間於前述容器內添加由作爲 共軛二烯之丁二烯3 1.5份、作爲芳香族乙烯基化合物之苯 乙烯34.5份、作爲（甲基）丙烯酸酯化合物之甲基丙烯酸 甲酯8.0份、作爲乙烯性不飽和羧酸之丙烯酸0.5份及衣康 酸〇·5份所成之聚合性單體（單體組成物（b) ) 75份並進 行聚合。此時，自單體組成物（b )添加開始後經過3小時 之時點，於前述容器中添加α-甲基苯乙烯二聚物0.5份及 十二烷基硫醇0.1份。單體組成物（b)之添加結束後，將 前述容器內之溫度升溫至80 °C，再反應2小時（第二階段 )〇 ， 接著，於聚合反應結束後，將所得乳膠之pH調整至 7.5，利用水蒸氣蒸餾去除殘留單體，利用減壓處理予以 濃縮。隨後，供給至安裝有250網目之過濾器的佐藤式振 動過篩機「1 200D-1S特殊型」（晃榮產業公司製），獲得 異物去除前之電化學裝置電極用黏合劑。所得之異物去除 前之電化學裝置電極用黏合劑之固體濃度爲48.5質量％， ρΗ7·8，黏度爲 1 19mPa · s。 接著，對於所得之異物去除前之電化學裝置電極用黏 合劑以圖1所示之過濾裝置1 00進行過濾（過濾步驟）。圖 1所示之過濾裝置100具備有儲存並供給異物去除前之電化 學裝置電極用黏合劑之供給槽1、用以使異物去除前之電 化學裝置電極用黏合劑以一定流量流動之定量泵2、具有 匣式過濾器（未圖示）及收納（安裝）該匣式過濾器之外 殻之過濾器4、位於定量泵2與過濾器4中途之脈動防止器3 S· -35- 201230478 、配置於脈動防止器3與過濾器4之間之第一壓力計7a、及 配置於過德器4下游之第二壓力計7b。而且，過爐裝置1〇〇 具備自過濾器4將黏合劑返回至供給槽1之返回導管6及將 利用過濾器4過濾之電化學裝置電極用黏合劑排出之排出 導管5。 於本實施例中，過濾器4係於外殼內安裝有1根深度型 之匣式過濾器「PROFILE II」（日本POLE公司製，額定 過濾精度ΙΟμιη，長度1吋）者。定量泵2使用空氣驅動式 雙隔膜式泵，使過濾器前後壓差成爲〇.34MPaG。又，由 圖1所示之過濾裝置100過濾後之電化學裝置電極用黏合劑 中數平均粒徑爲1 77nm。 又，於實施例1〜5及比較例1~3中，數平均粒徑爲以附 有自動取樣儀之濃厚系粒徑分析儀「FPAR1000」（大塚 電子公司製）所測定之値。 針對由圖1所示之過濾裝置1〇〇過濾後之電化學裝置電 極用黏合劑進行前述各種評價。評價結果示於表1。如表1 所示，本實施例中，由過濾裝置100過濃後之電化學裝置 電極用黏合劑以測粒儀測定時之每lmL中粒徑以上之 粒子數、粒徑15μιη以上未達20μιη之粒子數、以及粒徑超 過ΙΟμιη未達15μιη之粒子數均爲〇個。 -36- 201230478 [表i] 實施例1 比較例1 每lmL之粒子數 (個/mL) 粒徑20μπι以上 0 4000 粒徑15μιη以上未達20μιη 0 32000 粒徑超過ΙΟμπι未達15μιη 0 ----- 120000 數平均粒徑（nm) 177 177 剛硬短路之有無 <fnrr ΙΜΓ y i >> 有 良品率（％) 99 95 (比較例1 ) 針對以圖1所示之過濾裝置100進行過濾前之「異物去 除前之電化學裝置電極用黏合劑」，以與實施例1同樣進 行前述各種評價。評價結果示於表1。 (實施例2 ) 以與實施例1同樣獲得異物去除前之電化學裝置電極 用黏合劑。針對所得異物去除前之電化學裝置電極用黏合 劑，使用過濾裝置進行過濾。於本實施例使用之過濾裝置 ，係使用安裝有1根深度型之匣式過濾器「PROFILE II」 (日本POLE公司製，額定過濾精度20μιη，長度1吋）者， 代替圖1所示之過濾裝置100之深度型之匣式過濾器「 PROFILE II」（曰本POLE公司製，額定過濾精度10 μιη， 長度1吋）。尙，使過濾器前後差壓成爲0.25MPaG。又， 過濾後之電化學裝置電極用黏合劑中之數平均粒徑爲 177nm。針對以過濾裝置過濾後之電化學裝置電極用黏合 劑進行前述各種評價。評價結果示於表2。 -37- 201230478 (比較例2 ) 針對以實施例2所用之過濾裝置進行過濾前之「異物 去除前之電化學裝置電極用黏合劑」，以與實施例2同樣 進行前述各種評價。評價結果示於表2。 [表2] 實施例2 比較例2 每lmL之粒子數 (個/mL) 粒徑20μηι以上 0 18000 粒徑15μπχ[^上未達20μηι 32000 37000 粒徑超過1 〇μηι未達15μιη 484000 142000 數平均粒徑（nm) 177 177 剛硬短路之有無 姐 j \ \\ 有 良品率（％) 99 95 (實施例3 ) 以與實施例1同樣獲得異物去除前之電化學裝置電極 用黏合劑。針對所得異物去除前之電化學裝置電極用黏合 劑，使用與實施例1同樣之圖1所示之過濾裝置1 〇〇進行過 濾。又，本實施例中，過濾前後之壓差爲〇.38MPaG，對 以過濾裝置1 〇〇開始過濾後5分鐘之濾液進行取樣，進行前 述各種評價。評價結果示於表3。又，過濾後之電化學裝 置電極用黏合劑之數平均粒徑爲177nm。 -38- 201230478 [表3] 實施例3 實施例4 實施例5 比較例3 每lmL之 粒子數 (個/mL) 粒徑20μιη以上 0 0 0 11000 粒徑15μιη以上未達20μιη 0 0 0 34000 粒徑超過1 未達15μπι 10000 24000 47000 131000 數平均粒徑（nm) 177 177 177 177 剛硬短路之有無 *frrc Μ y\\\ 媒 有 良品率（％) 99 99 99 95 (實施例4 ) 除對自開始過濾1 〇分鐘後之濾液取樣以外，與實施例 3同樣地對濾液（以過濾裝置過濾後之電化學裝置電極用 黏合劑）取樣。針對所得濾液進行前述各種評價。評價結 果示於表3。又，過濾後之電化學裝置電極用黏合劑之數 平均粒徑爲177nm。 (實施例5 ) 除對自開始過濾1 5分鐘後之濾液取樣以外，與實施例 3同樣地對濾液（以過濾裝置過濾後之電化學裝置電極用 黏合劑）取樣。針對所得濾液進行前述各種評價。評價結 果示於表3。又，過濾後之電化學裝置電極用黏合劑之數 平均粒徑爲1 77nm。 (比較例3 ) 針對以實施例3所用之過濾裝置進行過濾前之「異物 去除前之電化學裝置電極用黏合劑」，以與實施例3同樣 -39- 201230478 進行前述各種評價。評價結果示於表3。又，過濾後之電 化學裝置電極用黏合劑之數平均粒徑爲177nm。 由表卜表3可了解，實施例1〜5之電化學裝置電極用黏 合劑，相較於比較例1〜3之電化學裝置電極用黏合劑，可 確認可使用作爲如隔離材破損之不良發生率極小且安全性 高之用以構成電化學裝置之電極之材料。 (實施例6~10、比較例4〜10 ) 於實施例6、7、比較例4〜7中，作爲電化學裝置電極 用黏合劑，係使用JSR TRD200 1 ( JSR公司製），於實施 例8 ~ 1 0、比較例8〜1 0中，分別使用表5所示之於實施例1〜3 製作之各電化學裝置電極用黏合劑（過濾後之電化學裝置 電極用黏合劑），以前述方法評價剛硬短路之有無及良品 率。又，進行以下所示之「6個月保存性」評價。 [6個月保存性]: 將電化學裝置電極用黏合劑裝入保存容器中，保存溫 度（°C )、空隙部體積相對於容器內容積之比率（空隙率 (% ),)、空隙部中殘留之氣體中氧濃度成爲表4、5所記 載之條件。隨後，靜置保存6個月。6個月保存後，以目視 觀察電化學裝置電極用黏合劑中異物發生之有無以及容器 樣態並評價。評價結果示於表4、5中。又，氧濃度係在將 電化學裝置電極用黏合劑裝入保存容器後，於容器內吹入 高純度氮進行氮置換而進行調整。 -40- 201230478 異物發生之有無評價，於以目視確認到凝聚物（異物 )時表示爲不良（表4' 5中表示爲「N」），未確認到凝 聚物時表示爲良好（表4、5中表示爲「G」）。容器樣態 之評價’於以目視未確認到容器外觀變化時表示爲良好（ 表4、5中表示爲「G」），於以目視確認到容器外觀變化 時表示爲不良（表4、5中表示爲「N」）。又，針對比較 例5、6、8、9，「N (漏液、變形）」表示確認到容器外 觀變形，使黏合劑漏出。 表4、5中，「乾淨容器」表示由AICELLO公司銷售之 20升方罐型之乾淨容器。「乾淨p〇LY容器」表示市售之 20升方罐型聚丙烯容器之內部在無塵室中，使用純水洗淨 容器內部者。「金屬罐」表示市售之金屬製1斗罐。201230478 6. Technical Field of the Invention The present invention relates to an electrode for an electrochemical device electrode, a method for producing the same, a method for preserving an electrode for an electrode of an electrochemical device, a slurry for an electrode for an electrochemical device, and an electrochemical method. Learn device electrodes. More specifically, the present invention relates to an electrode for an electrochemical device electrode for use in a material for an electrochemical device electrode having a high safety factor such as that the separator having a positive electrode and a negative electrode is broken, and a method for producing the same. A method for preserving an electrode for an electrochemical device electrode, a slurry for an electrode for an electrochemical device, and an electrode for an electrochemical device. [Prior Art] In recent years, advances in miniaturization and weight reduction of electronic devices have made remarkable progress. In response to this, an electrochemical device such as a battery used as a driving power source for the electronic device is required to further increase the miniaturization and high energy density. Therefore, in order to satisfy such a requirement, a nickel-hydrogen storage battery, a lithium ion secondary battery, or the like has been used as an electrochemical device instead of a nickel-cadmium storage battery. As a method of producing an electrode constituting the electrochemical device, an electrode active material such as an alloy that absorbs hydrogen or graphite (hereinafter sometimes simply referred to as "active material") or a tackifier such as carboxymethyl cellulose is known. A method in which a paste or a slurry obtained by dispersing a binder of a polymer particle in water is applied to a surface of a current collector, dried, and a coating film obtained by press working to form an electrode layer. Here, the binder has a function of binding an active material, and also has a function of improving the adhesion between the electrode layer containing the active material and the current collector -5-201230478. Such a binder is known as a latex obtained by emulsion polymerization of a monomer containing a conjugated diene, an aromatic vinyl compound, a (meth) acrylate, and an ethylenically unsaturated carboxylic acid (refer to Patent Document 1). [Patent Document 1] [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei No. Hei 11-25989 (Patent Document 2) It is difficult to swell the polymer particles contained in the electrolytic solution, and the dispersibility or storage stability when mixed with the active material is good, and the adhesion between the formed electrode layer and the current collector is high. In particular, it is required to have higher productivity and safety for a binder used in a battery used for a vehicle drive source for a hybrid electric vehicle or an electric vehicle. However, since the composition (adhesive) described in Patent Documents 1 and 2 is in a state in which the organic particles are dispersed in the dispersion medium, aggregates (foreign substances) are likely to occur due to changes in the treatment or storage environment after the production. The agglomerates thus produced are responsible for short-circuiting the electrodes. Specifically, an electrochemical device produced using a composition (adhesive) which produces aggregates has a problem that it is highly prone to defects on the electrodes and causes problems such as fire. For this reason, it is eagerly desired to develop a novel adhesive which can produce an electrode which has few occurrences of the aforementioned defects and which has a reduced foreign matter. Furthermore, it is required to develop a method of storing foreign materials that are not prone to foreign matter. The present invention has been made to solve the problems of the prior art as described above, and an object thereof is to provide an electrochemical device having high safety, and in particular to provide a non-defective rate of occurrence of damage such as breakage of a separator. An electrode for an electrochemical device electrode which is a material of an electrode of an electrochemical device which is less likely to cause problems such as a fire, a method for producing the same, a slurry for an electrode for an electrochemical device, and an electrode for an electrochemical device. Further, by providing a method for preserving the electrode for electrochemical device electrodes without generating foreign matter, the electrode yield can be improved. As a result of the active review of the above-mentioned problems, the present inventors have found that the use of a binder which removes particles having a particle diameter larger than the thickness of the separator is focused on the occurrence of a failure rate of the separator due to the particles. The present invention can be attained by the fact that the binder of particles having a particle diameter larger than the thickness of the separator is removed, and the present invention has been completed. According to the present invention, there are provided the following electrode binder for an electrochemical device electrode, a method for producing the same, a method for storing an electrode for an electrode of an electrochemical device, a slurry for an electrode for an electrochemical device, and an electrode for an electrochemical device. [1] An adhesive for an electrode of an electrochemical device obtained by polymerizing a polymerizable monomer, and the number of particles having a particle diameter of 20 μm or more per 1 mL when measured by a granulator is zero. [2] The binder for electrode of an electrochemical device according to the above [1], wherein the particle diameter of each particle of 1 5 μm or more and the number of particles of not 20 μm is 〇 35,000 in the measurement by the granulometer. . [3] The adhesive for electrode of an electrochemical device according to the above [1] or [2], which is characterized in that the particle size per 1 mL of the particle diameter exceeds 1 μm and the particle number is less than 15 μm. 0-500000. [4] A slurry for an electrode of an electrochemical device according to any one of the above [1] to [3], which is hereinafter referred to as "electrode binder" ) and electrode active materials. [5] An electrochemical device electrode comprising: a flat current collector; and an electrode disposed on one surface of the current collector and coated on the one surface of the current collector as described in [4] above An electrode layer obtained by using a slurry for a device electrode. [6] A method for producing an electrode for an electrochemical device electrode, which comprises polymerizing a polymerizable monomer to obtain a reaction liquid containing a polymer, and then using the obtained reaction solution as a depth type filter Or a filtration step of a pleats type filter. [7] The method for producing an electrode for an electrochemical device electrode according to the above [6], wherein the number of particles having a particle diameter of 20 μm or more per 1 mL is 0 by the filtration step. The filtrate. [8] A method for preserving an electrode for an electrochemical device electrode, which comprises storing an electrode for an electrochemical device electrode containing polymer particles and water at a temperature of 30 t or less, and charging and storing the electrochemical device The volume of the void portion after the volume occupied by the binder for the electrochemical device electrode is deducted from the internal volume of the container for the electrode for the electrode electrode, and the ratio (%) of the internal volume of the container is 1 to 20%. [9] The method for storing an electrode for an electrochemical device electrode according to the above [8], wherein the oxygen content of the void portion atmosphere is 1% or less. [10] The method for preserving an electrode for an electrode of an electrochemical device according to the above [8] or [9], wherein the electrode for an electrode of the electrochemical device is as described in the above Π]~[3] A binder for an electrode of an electrochemical device as described. In the electrochemical device electrode of the present invention, the number of particles having a particle diameter of 20 μm or more per 1 mL in the measurement by the granulometer is zero, so that it can be used as a spacer for forming particles due to the binder. The effect of the material of the electrode of the electrochemical device is that the damage of the plate (that is, the particles penetrate the separator) has an extremely low incidence of occurrence and high safety. The method for producing an electrode for an electrochemical device electrode of the present invention has a filtration step of filtering the obtained reaction liquid into a deep type or a discount type filter by polymerizing a polymerizable monomer to obtain a reaction liquid containing a polymer. 'Therefore, it is possible to use an electrochemical device electrode for forming an electrode of an electrochemical device in which the separator is broken due to the particles contained in the binder (that is, the particles penetrate the separator) and the incidence of the electrochemical device is extremely low and the safety is high. The effect of using a binder. According to the method for preserving the electrode adhesive for an electrochemical device of the present invention, in the storage of the electrode for the electrochemical device electrode, foreign matter such as aggregates is less likely to be generated, and the yield of the electrode to be produced can be improved. Since the slurry for an electrochemical device electrode of the present invention contains the binder for an electrode of the electrochemical device of the present invention, it can be used as a separator for causing damage to the separator due to particles contained in the binder (that is, by particle penetration). The effect of the material constituting the electrode of the electrochemical device, which has an extremely low incidence of occurrence of the separator and high safety. The electrode of the electrochemical device of the present invention is provided with the electrode layer obtained by applying the slurry for the electrode of the device of the present invention to one surface of the current collector, so that it can be used as a binder. The particles contained therein cause the separator to be damaged (that is, the particles penetrate the separator), and the effect of the electrochemical device is extremely small and the safety is high. [Embodiment] Hereinafter, embodiments for carrying out the invention will be described, but the invention is not limited to the following embodiments. In other words, those skilled in the art can appropriately change, modify, and the like in the form of the following embodiments based on the general knowledge, but it should be understood that they are all within the scope of the present invention. [1] Adhesive for electrode of electrochemical device: The electrode for electrochemical device of the present invention is obtained by polymerizing a polymerizable monomer, and the particle diameter per ImL when measured by a particle measuring instrument is 20 μm. The number of particles above is one. Since the binder for the electrode of the electrochemical device is one of the particles having a particle diameter of 20 μm or more per 1 mL when measured by a granulometer, it can be used as a separator for forming particles contained in the binder. A material constituting an electrode of an electrochemical device in which damage (that is, particles penetrate the separator) has an extremely low incidence of occurrence and high safety. In the past, since the binder was not subjected to the operation of removing particles larger than a specific particle diameter, it was considered to contain particles larger than a specific particle diameter. Therefore, when the large particles are charged when the current flows, the larger particles are pulled toward the electrode side across the separator, and penetrate the separator to cause cracking through the separator. In the past, such a separator has a possibility that the separator is broken (specifically, the larger particles penetrate the separator and the crack of the separator penetrates). Further, when the separator is broken, there is a possibility that the electrochemical device is hard short due to energization, and when a hard short circuit occurs, there is a possibility that, for example, the electrochemical device is ignited. On the other hand, the binder for an electrode of an electrochemical device according to the present invention can be produced without cracking particles (particles larger than a specific particle diameter) which penetrates the separator and penetrate the separator. The electrode of an electrochemical device with high safety. Here, the particles larger than the specific particle diameter are specifically particles having a particle diameter which is equal to the thickness of the separator which separates the positive electrode from the negative electrode. Further, the thickness of the separator is usually 10 to 30 μm. When the thickness of the separator is too thin compared to ΙΟμηη, it is easily broken and may cause defects in the electrochemical device. The binder for the electrode of the electrochemical device of the present invention is not particularly limited as long as it satisfies the above-mentioned conditions, and in addition to the above-mentioned conditions, the particle diameter of ΐ5 μm1 or more per 2 mL in the measurement by the granulometer is preferably less than 2 〇μπι. 〇~35000 'better is 0~4〇00. Further, the number of particles per ML of the particle size measured by the granulometer exceeding ΙΟμηι of less than 15 μm is preferably from 〇 to 500,000, more preferably from 0 to 2,000,000. Thus, if the particles having a specific particle diameter are within the above range, the possibility of breakage of the separator due to the particles can be further reduced. Further, the binder is likely to be a resistance component, and when the binder is localized, there is a defect that the electric resistance is likely to increase. However, by making the particles having a specific particle diameter within the above range, it is difficult to localize the binder. Accordingly, it is difficult to increase the advantages of the aforementioned resistance. In the present invention, the number of particles per 1 mL is measured by a particle granulator, and the number of particles per specific particle size is specified in the range of -11 - 201230478. In other words, the electrode for an electrode of an electrochemical device of the present invention has no particles having a particle diameter of 20 μm or more per 1 mL. The electrode for an electrochemical device of the present invention is as described above, and is obtained by polymerizing a polymerizable monomer. By. In other words, it is a polymer containing a structural unit derived from the above-mentioned polymerizable monomer, and exhibits a function as a binder by the polymer. In the electrode for an electrochemical device electrode of the present invention, the solid content of the polymer is preferably from 20 to 56% by mass, more preferably from 23 to 55 mass%. /. , preferably 25 to 5 4 mass%. When the solid content concentration is within the above range, the particles of the polymer are stabilized in the binder (present in a well-dispersed state). Therefore, there is an advantage that a binder excellent in long-term stability is obtained. When the concentration of the solid component is less than 20% by mass, the productivity is lowered. That is, when the reaction liquid obtained by the polymerization is directly used as the binder, it is necessary to lower the concentration of the polymer obtained by the polymerization. For this reason, productivity is lowered. On the other hand, when it exceeds 56% by mass, the viscosity of the binder excessively increases, and there is a possibility that the long-term stability cannot be sufficiently obtained. Further, the solid content concentration differs depending on whether it is used for the negative electrode or the positive electrode. For example, the solid content concentration of the SBR (styrene-butadiene copolymer) which is a binder for the negative electrode is 40 to 55 mass%, which is a positive electrode binder. The solid content concentration of the fluoroacrylic emulsion is 20 to 5 % by mass, preferably 2 to 3 to 3 % by mass. The binder for an electrode of an electrochemical device of the present invention is not particularly limited as long as it is a polymerizable monomer, and can be used as a binder for a positive electrode or a negative electrode. -12-201230478 The binder for the positive electrode can be exemplified by a binder described in, for example, Japanese Patent No. 3,999,927. Specifically, a polymer obtained by polymerizing a polymerizable monomer such as a fluorine-containing monomer copolymerizable with vinylidene fluoride, a hydrocarbon monomer such as ethylene or propylene, or the like can be used. . The fluorine-containing monomer copolymerizable with the vinylidene fluoride may, for example, be fluorinated ethylene, trifluoroethylene, chlorotrifluoroethylene, tetrafluoroethylene, hexafluoropropylene or fluoroalkylvinylhydrazine. Further, the monomer other than the above monomer may, for example, be a monoester of an unsaturated dibasic acid or a vinyl carbonate. The monoester of the unsaturated dibasic acid may specifically be monomethyl maleate, monoethyl maleate, monomethyl citrate, monoethyl citrate or the like. The binder for the negative electrode can be exemplified by the adhesive described in, for example, JP-A-2010-129186. Specifically, it is a polymer obtained by polymerizing a polymerizable monomer composed of a conjugated diene, an aromatic vinyl compound, a (meth) acrylate compound, or an ethylenically unsaturated carboxylic acid. The conjugated diene may, for example, be 1,3-butadiene, isoprene, 2-chloro-I,3-butadiene 'chlorobutadiene or the like. Among these, ruthenium, 3-butadiene is preferred. The proportion of the conjugated diene used in the total amount of the polymerizable monomer is preferably from 33 to 48·5 mass%, more preferably from 35 to 45 mass%. When the above-mentioned use ratio is less than 33% by mass, the glass transition temperature of the obtained polymer is high, and the flexibility of the obtained electrode layer or the adhesion to the current collector tends to be lowered. On the other hand, 'more than 48. When the amount is 5 mass%, the surface of the electrode layer to be obtained tends to have an adhesive property. Therefore, there is a problem that the electrode layer is attached to a light-weight or the like during press working. ♦ -13- 201230478 The aromatic vinyl compound may, for example, be styrene, α-methylstyrene, p-methylstyrene, vinyltoluene, chlorostyrene or divinylbenzene. Among these, styrene is preferred. The proportion of the aromatic vinyl compound used in the total amount of the polymerizable monomer is preferably from 40 to 50% by mass, more preferably from 43 to 48% by mass. When the use ratio is less than 40% by mass, the interaction of the graphite used as the active material is lowered, and as a result, the obtained electrode layer tends to be easily peeled off from the active material. On the other hand, when it exceeds 50% by mass, the obtained polymer becomes hard and becomes embrittled, and the flexibility of the obtained electrode layer or the adhesion to the current collector tends to be lowered. The (meth) acrylate compound may, for example, be methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate or (meth) acrylate. N-butyl ester, isobutyl (meth)acrylate, n-amyl (meth)acrylate, isoamyl (meth)acrylate, hexyl (meth)acrylate, 2-hexyl (meth)acrylate, ( Octyl methacrylate, isodecyl (meth) acrylate, decyl (meth) acrylate, hydroxymethyl (meth) acrylate, hydroxyethyl (meth) acrylate, ethylene glycol (meth) acrylate Ester and the like. Among these, methyl (meth)acrylate, n-butyl (meth)acrylate, and isobutyl (meth)acrylate are preferred, and methyl (meth)acrylate is preferred. The proportion of the (meth) acrylate compound in the total amount of the polymerizable monomer is preferably from 8 to 12. 5 mass%, more preferably 9-12 mass%. When the above-mentioned use ratio is less than 8% halo%, the affinity of the obtained polymer to the electrolytic solution is low, and the binder in the electrochemical device tends to be a resistance component. For this reason, there is a tendency to increase the internal resistance of the device. On the other hand, it is 12. When the mass is 5 mass%, the polymer obtained by the -14 - 201230478 is excessively absorbed by the electrolyte, and the adhesion is lost. Therefore, it is easy to cause a high-temperature storage. The ethylenically unsaturated carboxylic acid is exemplified by (methylaconic acid, etc.) The ethylenically unsaturated in the total amount of the polymerizable monomer is preferably 0. 1 to 2 0% by mass, more preferably 0. 2~15 mass ratio is less than 0. When the amount is 1% by mass, the dispersion stability of the polymer particles in the electrochemical device is insufficient, and a condensation result is likely to occur, which tends to cause a problem that the obtained electrode layer is in contact with the current collector. On the other hand, when it exceeds 20 mass%, it may tend to become a slurry having poor coatability during the storage process after the preparation of the slurry for extreme use. The polymerizable monomer includes, in addition to the above monomers, an alkylalkylamine such as acrylamide or N-methylol acrylamide: a carboxylic acid unsaturated dicarboxylic acid such as vinyl acetate or vinyl propionate. An aminoalkyl phthalamide of an ethylenically unsaturated carboxylic acid such as an acid anhydride, a monoalkyl ester, a monodecylamine decylamine, a dimethylaminomethyl methacrylamide or a methylamine decylamine, A cyanide vinyl compound such as α-chloroacrylonitrile or the like. Further, in addition to the binder for the electrode of the electrochemical device of the present invention, the initiator "molecular weight modifier" used in the polymerization step described later may be contained. [2] Manufacturer of Electrode Device Electrode Binder: The electrochemical device of the electrode device of the present invention has a binder which is deteriorated in the chemical device. The use ratio of c storage acid and clothing carboxylic acid is %. When using the above-mentioned prizes, the polymer is used. For this reason, the electrochemical viscosity of the electrochemical device is raised as, for example, (vinyl ester of methyl unsaturated carboxylic acid; ethylene: aminoethyl propyl propyl methyl propyl; (methyl) propyl' In addition to the above-mentioned polymerization emulsifier and polymerization method, the method for producing an electrode for an electrochemical device electrode of the present invention as described in -15 to 201230478, the reaction solution obtained is obtained by polymerizing a polymerizable monomer to obtain a reaction liquid containing a polymer. After that, the filtration step is filtered by a deep type or a discount type filter. Because of this step, it is possible to manufacture a separator for forming a separator due to particles contained in the adhesive (that is, the separator penetrates through the particles. The adhesive for electrode of an electrochemical device which constitutes an electrode of an electrochemical device having an extremely low incidence of occurrence of high degree of safety, and the electrode adhesive is usually not required to be produced in an environment such as a clean room. [2_1] Polymerization Step: In the method for producing an electrode for an electrochemical device electrode of the present invention, a method of polymerizing a polymerizable monomer to obtain a reaction liquid containing a polymer (polymerization step) can be carried out by a conventional method. For example, the method described in JP-A-2010-129186, JP-A No. 3999927, etc., specifically, when preparing a binder for a positive electrode, by suspension polymerization, emulsion polymerization, and solution polymerization A method of obtaining a polymer-containing reaction liquid by polymerizing a polymerizable monomer such as a vinylidene fluoride, etc. Among these, it is preferably aqueous suspension polymerization or emulsion polymerization, and the like is preferably an aqueous suspension polymerization or an emulsion polymerization. Aqueous suspension polymerization. In suspension polymerization, for example, methylcellulose, methoxymethylcellulose, propoxylated methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, polyethylene can be used as the suspending agent. Alcohol, polyethylene oxide, gelatin, etc. Therefore, the suspending agent is preferably 0. for the dispersion medium (for example, water). 005~1. 0 quality -16- 201230478 The amount of % is added, preferably 0. 01-0. Added in the range of 4% by mass. As the polymerization initiator, for example, diisopropyl peroxydicarbonate, di-n-propyl peroxydicarbonate, di-n-pentafluoropropyl peroxydicarbonate, isobutyl peroxide, dichlorofluoride can be used. Mercapto) peroxide, bis(perfluorodecyl) peroxide, and the like. The amount of the polymerization initiator to be used is preferably 0.1 part by mass based on 100 parts by mass of the total amount of the polymerizable monomer. 1 to 5 parts by mass, more preferably 0. 3~3 parts by mass. In addition, a chain transfer agent may also be added to the suspension polymerization. The chain transfer agent may, for example, be ethyl acetate, methyl acetate, acetone, ethanol, n-propanol, acetaldehyde, propionaldehyde, ethyl propionate, carbon tetrachloride or the like. The amount of the chain transfer agent to be used is usually 100 parts by mass, preferably 0%, based on the total amount of the polymerizable monomer. 05~10 mass parts, better 0. 1 to 5 parts by mass. The total amount of the polymerizable monomer to be fed is preferably from 1:1 to 1:10, more preferably from 1:2 to 1:5, based on the total mass of the polymerizable monomer: the mass ratio of the dispersion medium. Further, the polymerization conditions may be 10 to 1 hour at 10 ° C to 50 ° C. Further, in the case of producing a binder for a negative electrode, a method of obtaining a reaction liquid containing a polymer by emulsion polymerization in the presence of an emulsifier, a polymerization initiator and a molecular weight modifier in an aqueous medium can be mentioned. As the emulsifier, two or more kinds of anionic surfactants, nonionic surfactants, amphoteric surfactants, and the like may be used alone or in combination. As the anionic surfactant, a sulfate of a higher alcohol, an alkylbenzenesulfonate, an aliphatic sulfonate, a sulfate of a polyethylene glycol alkyl ether or the like can be used. As the nonionic surfactant, those of the alkylene glycol type, the alkyl ether type, and the alkylphenyl ether type can be used. Specific examples of the amphoteric surfactant can be classified into a carboxylate salt, a sulfonate or a phosphate salt using an anion portion -17 to 201230478, and an amine salt or a quaternary ammonium salt. More specifically, it can be exemplified by betaine such as lauryl betaine or stearyl betaine, lauryl-β-aniline, lauryl bis(aminoethyl)glycine, and octyl bis(amino group B). Base) Amino acid type such as glycine. The amount of the emulsifier used is preferably 100 parts by mass based on 100 parts by mass of the total of the polymerizable monomers to be used. 5 to 5 parts by mass. As the polymerization initiator, two or more kinds of water-soluble polymerization initiators such as sodium persulfate, potassium persulfate, ammonium persulfate, etc., benzammonium peroxide, lauryl peroxide, 2, 2 may be used singly or in combination. An oil-soluble polymerization initiator such as azobisisobutyronitrile or a redox polymerization initiator which is combined with a reducing agent such as sodium hydrogen sulfite. The amount of the polymerization initiator to be used is preferably 0 parts by mass based on 100 parts by mass of the total amount of the polymerizable monomers. 3 to 3 parts by mass. As the molecular weight modifier, a halogenated hydrocarbon such as chloroform or carbon tetrachloride, n-hexyl mercaptan, n-octyl mercaptan, n-dodecyl mercaptan, tri-dodecyl mercaptan, or thioglycolic acid can be used. Ordinary thiol, dimethylxanthogen disulfide, diisopropyl xanthate disulfide, etc., such as xanthate, terpineol, α-methylstyrene dimer, etc. User in emulsion polymerization. The amount of the molecular weight regulator to be used is usually 5 parts by mass or less based on 100 parts by mass of the total amount of the polymerizable monomer. The emulsion polymerization can be a one-stage emulsion polymerization but is preferably a two-stage emulsion polymerization. In the two-stage emulsion polymerization, the first stage of the emulsion polymerization is preferably a polymerization temperature of, for example, 40 to 80 t, and a polymerization time of, for example, 2 to 4 hours, and the polymerization conversion ratio is preferably 50% or more, more preferably 6 0% or more. Further, in the second stage of the emulsion polymerization, the polymerization temperature is preferably, for example, 40 to 80 t, and the poly-18 to 201230478 is, for example, 2 to 6 hours. Further, the polymer in the reaction liquid to be obtained is not particularly limited as long as the binder for the electrode of the electrochemical device of the present invention functions as a binder, but preferably has a number average particle diameter of 50 to 400 nm, more preferably 1〇〇~300nm. Here, the "number average particle diameter" in the present specification is measured by a thick particle size analyzer "FPAR-1 0 00" (trade name) (manufactured by Otsuka Electronics Co., Ltd.). Further, the polymer preferably has a glass transition temperature of -50 to + 25 ° C, more preferably -3 0 to + 5 °C. Here, the "glass transition temperature" in the present specification is such that a binder is applied to a glass plate and dried at 120 ° C for 1 hour, thereby forming a polymer film, and a differential scanning calorimeter is used for the obtained polymer film ( For example, the glass transition temperature (Tg) measured by the "differential scanning calorimeter" manufactured by Seiko Mat Industrial Co., Ltd. [2-2] Filtration step: In the method for producing an electrode for an electrochemical device electrode of the present invention, the reaction liquid obtained as described above is filtered by a depth type filter or a discount type filter to obtain a measurement by a granulometer. The number of particles having a particle diameter of 20 μm or more per lmL is one filtrate. Here, the so-called depth filter in the present specification is a high-precision filter which is also called a depth filter or a volume filter type filter. . Such a depth filter has a filter membrane layer in which a plurality of pores are formed into a laminate structure, or a fiber bundle is wound up. As for the deep type filter, specific examples include PROFILE II, NEXIS ΝΧΑ, NEXIS ΝΧΤ, -19-201230478 POLYFINE XLD, ULTIPLEAT PROFILE, etc. (all manufactured by Japan PLOE), deep 匣 type filters, single 匣 filters, etc. (all manufactured by ADVENTEC), CP filter, BM filter (all manufactured by CHISSO), SLOPE PURE > DAI ' MICRO CILIA (all manufactured by RO KI TECHNO). As for the deep type filter, it is better to use the rated filtration accuracy as 1. 0~20μιη, better use 5′′~ΙΟμπι. By using the rated filtration accuracy within the above range, it is possible to efficiently obtain a filtrate having a particle diameter of 20 μm or more per 1 mL of the particle size measured by the granulometer. Further, since the number of coarse particles trapped in the filter is minimized, the usable period of the filter can be extended. In addition, the deep type filter is a folded seam in which a precision filter film made of a nonwoven fabric, a filter paper, a metal mesh, or the like is formed, and then formed into a tubular shape and liquid-tightly seals the film, and is liquid-tightly sealed. A cylindrical high-precision filtered filter obtained at both ends of the sealed cylinder. The so-called discount type filter is better to use the rated filtration accuracy. 0~20μιη, better use 5. 0~10μηι. By using the rated filtration accuracy within the above range, it is possible to efficiently obtain a liquid having a particle size of 20 μm or more per 1 mL of the particle size measured by the granulometer. Further, since the number of coarse particles trapped in the filter is minimized, the usable period of the filter can be extended. As a discount type filter, for example, HDC II, POLYFINE II, etc. (all manufactured by POLE Corporation of Japan), and ΡΡ 匣 type filter (made by ADVENTEC) 'POROUSFINE (for CHISSO -20-201230478 system) ), CERTAIN PORE, MICRO PURE (all manufactured by R〇KI TECHNO). The conditions at the time of filtration (pressure difference (pressure difference) before and after the filter, liquid temperature, and the like) are not particularly limited as long as the number of particles having a particle diameter of 20 μm or more per 1 mL of the measurement by the granulometer is obtained. For example, the pressure difference may be appropriately set as long as it does not exceed the range of the maximum withstand voltage difference of the filter to be used, but specifically, it is preferably 0. 2~0. 4MPaG. The liquid temperature is preferably from 10 to 50 °C. In the filtration step, for example, the filtration device 100 shown in Fig. 1 can be used. The filter device 100 includes a supply tank 1 for storing and supplying an electrode for an electrochemical device electrode before removal of foreign matter, and a metering pump 2 for flowing an electrode for an electrochemical device electrode before a foreign matter is removed at a constant flow rate. a filter (not shown), a filter 4 for housing (mounting) the casing of the 匣 filter, a pulsation preventer 3 located in the middle of the dosing pump 2 and the filter 4, and a pulsation preventer 3 and a filter 4 A first pressure gauge 7a is disposed between the first pressure gauge 7a and a second pressure gauge 7b disposed downstream of the filter 4. Further, the filter device 100 includes a return conduit 6 for returning the binder from the filter 4 to the supply tank 1, and a discharge conduit 5 for discharging the electrode for electrochemical device electrodes filtered by the filter 4. In the filtration apparatus 1 , the reaction liquid obtained in the above-described polymerization step is boosted from the supply tank 1 by the quantitative pump 2 and supplied to the pulsation preventer 3 . When there is a pulsation caused by the constant pump 2, the pulsation preventer 3 is used to reduce the pulsation. The reaction liquid discharged from the pulsation preventer 3 is supplied to the filter 4 to remove foreign matter, and then recovered through the discharge conduit 5. The recovered recovered liquid is the binder for the electrochemical device electrode. Here, the "foreign matter" in the present specification is a particle having a particle diameter of 2 〇 μm or more. Further, the particles are not particularly limited as long as the particle diameter is 20 μm or more, and the material is -21 - 201230478, and may be metal, resin, or the like. The foreign matter of the liquid recovered by the discharge conduit 5 is not sufficient, and the recovered liquid may be returned to the supply tank 1 through the return conduit 6 as a binder for the electrochemical device electrode, and may be filtered by the filter 4. When the pulsation is not generated by the metering pump 2, the pulsation preventer 3 may not be disposed. When the viscosity of the reaction liquid is high, the viscosity of the reaction liquid may be obtained by heating the supply tank, the conduit or the heating. That is, it is also possible to provide a heating means for warming the tank, the duct or both. In this way, productivity can be improved when the viscosity is high. Further, although the filter device 1A includes the first pressure gauge 7a and the second 7b, a filter device not including a pressure gauge may be used. However, by the first pressure gauge 7a and the second pressure gauge 7b, the filter can be managed to cause the filter to function normally. Further, instead of the supply tank 1, the container is also used to directly supply the electrode of the electrochemical device before the foreign matter is removed. Therefore, the filter device 100 is an example in which one filter 4 is used, and a plurality of filters are used. When a plurality of filters are used, a plurality of filters may be connected in series or in parallel. [3] Method for preserving an electrode for an electrochemical device electrode: The method for preserving an electrode for an electrochemical device of the present invention is excellent (that is, in a state in which no foreign matter is generated) for long-term storage of particles and water. Adhesive for device electrodes. Therefore, the present preservation method can be preferably used as the return of each mixture prepared by the above method, and is, and is. In addition, the two are prepared so that the pressure gauge for the reaction liquid can be self-adhesively bonded, but it can also be a filter. The number of particles of the particle size of 20 μm or more in the 1 m L of the polymerization invention is 22-201230478. A method of preserving electrodes for electrochemical devices. In particular, when the polymer contains an easily agglomerated polymer (e.g., a fluorine-based polymer) in the electrode for an electrochemical device electrode, the preservation effect of the present invention is favorably exhibited. In the preservation method of the present invention, it is necessary to store the binder for the chemical device electrode at a temperature of 2 to 30 ° C, preferably 10 to 2 5 ° C. When the upper limit is exceeded, during the long-term storage period, some of the agglomerates that come into contact with the wall surface of the container in the interface between the void portion and the electrochemical-electrolytic adhesive may aggregate to cause foreign matter. Therefore, when the lower limit 前述 of the above range cannot be stably maintained for a long period of time, the adhesive polymer particles for the electrochemical device are aggregated to cause gelation or foreign matter. Therefore, the time is safely preserved. In the storage method of the present invention, the internal volume of the container for the electrochemical electrode adhesive is filled and stored, and the volume of the void portion after the volume occupied by the electrochemical adhesive is subtracted, and the ratio (%) of the volume is occupied. (hereinafter, also referred to as "void ratio"): 1 to 20%, preferably 3 to 15%, more preferably 5 to 10%. When the void ratio is the upper limit of the range, the water content increases when the storage temperature changes. As a result, polymer particles aggregate and occur in the gas-liquid interface (the interface between the void portion and the electrochemical device adhesive). This is not safe to save. If the void ratio is less than the above range, the container may be deformed or the container may be broken when the viscosity of the electrode of the electrochemical device is changed as the storage temperature changes. Therefore, there is no place to save. The adhesive contains the particles of the above-mentioned range of the device. In the case of a non-mixing agent, it is not possible to carry out the device. The contents of the electrode must be more than the amount of the former volatile electrode. In the preservation method of the present invention, the oxygen concentration in the void portion atmosphere is preferably 1% or less. When the oxygen concentration in the void portion atmosphere is within the above range, the binder component (the component contained in the binder for the electrochemical device electrode) during the long-term storage period is not oxidized or deteriorated, and aggregation of the polymer particles can be suppressed. Therefore, the generation of foreign matter can be effectively suppressed. For the oxygen concentration, an oxygen concentration meter (manufactured by JIKCO Co., Ltd., model "OXY-1S") was used, and the concentration of the void portion immediately before the container was sealed was measured. The storage method of the present invention preferably has a metal ion elution rate of 5 〇 ppm or less from a container for holding an electrode for an electrode of an electrochemical device. When the metal ions are dissolved in the binder for the electrode of the electrochemical device, the zeta potential balance on the surface of the particles contributing to the dispersion of the polymer particles in the electrode for the electrochemical device electrode is disintegrated. Therefore, aggregation tends to occur. Since the polymer particles thus aggregated are contained, a smooth active material layer cannot be formed, and when the electricity storage device is fabricated, the aggregated polymer particles penetrate the separator, and the possibility of causing a fatal defect such as short-circuiting between the positive electrode and the negative electrode is high. Therefore, it is not good. Further, as a container for dissolving such metal ions, it is preferably made of a material made of glass or resin. For example, a clean container manufactured by JP-A-59-03 5043 can be preferably used. According to the preservation method of the present invention, even if the storage period is extended in the order of 6 months, 12 months, and 18 months, the quality of the electrode for the electrochemical device electrode hardly changes. Also, no gel is formed. Therefore, the same active material layer can be formed under the same conditions as the formation of the active material layer using the electrode for electrochemical device electrode immediately after manufacture. Further, the effect of the productivity of the electrode for an electrochemical device electrode can be improved, and the effect is also large when the storage period is -24 - 201230478, such as 6 months, 12 months, and 18 months. [4] Slurry for electrode of electrochemical device: The electrode for electrode of the electrochemical device of the present invention is the electrode binder and electrode active material of the electrode device of the present invention. Since the slurry for an electrochemical device electrode contains the adhesive for electrode of the electrochemical device of the present invention, it can be used as a spacer for forming a particle contained in the adhesive to break the separator (that is, the separator is A material constituting an electrode of an electrochemical device in which the incidence of defects is extremely small and the safety is high. The slurry for an electrochemical device electrode of the present invention can be prepared by mixing the electrode for an electrochemical device electrode of the present invention with an electrode active material. [4-1] Electrode Active Material: The electrode active material is not particularly limited. When it is used for a lithium ion battery electrode, carbon can be used as a negative electrode, and carbon material obtained by firing an organic polymer compound such as phenol resin, polyacrylonitrile or cellulose can be used to make coke or pitch. Carbon material, artificial graphite, natural graphite, etc. obtained by firing. Further, when used in an electric double layer capacitor electrode, activated carbon, activated carbon fiber, silica sand, oxidized crystal, or the like can be used. Further, when used in a lithium ion electric grid electrode, a carbon material such as graphite, non-graphitizable carbon, hard carbon or coke, or a polyacene organic semiconductor (P AS ) or the like can be used. The slurry for electrode of an electrochemical device of the present invention may further contain a dispersant such as a tackifier, sodium hexametaphosphate, sodium tripolyphosphate or sodium polyacrylate, and a nonionic or anionic interface activity as a stabilizer for latex. Additives such as anti-foaming agent-25-201230478. The slurry for an electrode of the electrochemical device of the present invention is preferably contained in an amount of from 0.1 to 10 parts by mass, more preferably from 0. 1 to 10 parts by mass, based on 100 parts by mass of the electrode active material. 3 to 4 parts by mass. When the ratio of the solid content of the electrode binder is too small, there is a tendency that good adhesion cannot be obtained. On the other hand, when the ratio of the solid content of the electrode binder is too large, there is a tendency that the overvoltage is increased to affect the battery characteristics. In the preparation of the slurry for an electrode of an electrochemical device of the present invention, a means for mixing an electrode for an electrode of an electrochemical device, an electrode active material, and an additive to be used as needed may be exemplified by a stirrer, a defoaming machine, and a bead honing. Machine, high pressure homogenizer, etc. Further, the preparation of the slurry for the electrode can be carried out under reduced pressure. By performing under reduced pressure, generation of bubbles in the resulting electrode layer can be prevented. The content ratio of the solid content of the binder for the electrode of the electrochemical device electrode in the slurry for an electrode of the electrochemical device of the present invention is preferably 0% by mass based on 100 parts by mass of the electrode active material. 1 to 3 parts by mass, more preferably 0. 5 to 2 parts by mass. The aforementioned content ratio is less than 0. When the amount is 1 part by mass, there is no possibility of obtaining good adhesion between the electrode layer and the current collector. On the other hand, when it exceeds 3 mass parts, it is difficult to fully improve battery characteristics. [5] Electrochemical device electrode: The electrode of the electrochemical device of the present invention is provided with a flat-plate current collector, and is disposed on one surface side of the current collector, and the electrochemical device of the present invention is coated on one surface of the current collector. The electrode layer obtained by using the slurry for the device electrode. The electrode of such an electrochemical device is provided with a -26- of the present invention on one side of the current collector. 201230478 The electrode layer obtained by using the slurry for the chemical device electrode, so that the separator can be damaged due to the particles contained in the binder (that is, the separator is penetrated by the particles), and the occurrence of the failure is extremely low and the safety is high. Learning device. The method for manufacturing an electrode of an electrochemical device according to the present invention is characterized in that first, an electrode for an electrochemical device electrode of the present invention is applied onto a surface of a flat current collector and dried to form a coating film on the current collector. Laminated body. Subsequently, the obtained laminate was subjected to press working in the thickness direction. Thus, the electrochemical device electrode of the present invention can be fabricated. In addition, the active material layer is formed by the binder for the electrode of the electrochemical device after the storage, and the composition is obtained by adding an active material to the electrode for electrodeposition of the electrochemical device after storage, for example, in the same manner as usual. It can be applied to the current collector. [5-1] Current collector: As the current collector, a metal foil, an etched metal foil, a rolled metal, or the like can be used. The material constituting the current collector can be appropriately selected from metal materials such as aluminum, copper, nickel, molybdenum, stainless steel, and titanium, depending on the type of electrochemical device to be used. Further, the thickness of the current collector is, for example, 5 to 30 μm, preferably 8 to 25 μm, when the electrode for a lithium ion secondary battery is formed. Further, for example, when forming an electrode for an electric double layer capacitor, it is 5 to ΙΟΟμηη, preferably 10 to 70 μm, more preferably 15 to 30 μm. [5 - 2 ] Electrode layer: As described above, the electrode layer is disposed on one surface (for example, a surface) of the current collector, and the slurry for electrode of the electrochemical device of the present invention is applied to the current collector side -27-201230478 The winner. As a method of applying the slurry for an electrode of an electrochemical device, a conventionally known method can be suitably employed. For example, spin coating, cast coating, roll coating, slit and spin coating, blade coating, and reverse roll coating can be exemplified. Coating method, gravure coating method, air knife coating method, and the like. Further, as a drying treatment condition of the coating film formed by the slurry for an electrochemical device electrode, the treatment temperature is preferably, for example, 2 Torr to 250 ° C, more preferably 50 to 150 ° C. And the processing time is, for example, 1 to 12 minutes, more preferably 5 to 60 minutes. Further, as a press processing means, a high pressure super press, a soft calender, a 1 ton press, or the like can be used. As the pressing processing conditions, it is appropriately set corresponding to the processing machine used. The electrode layer thus formed, for example, has a thickness of 40 to 100 μm and a density of 1. 3 ~ 2. 0g/cm2. [6] Electrochemical device: The electrode of the electrochemical device obtained as described above can be preferably used as an electrode of an electrochemical device such as a lithium ion secondary battery, an electric double layer capacitor, or a lithium ion capacitor. Further, the electrochemical device generally includes a current collector, a positive electrode formed of an electrode layer containing a positive electrode binder formed on the surface of the current collector, a current collector, and a negative electrode formed on the surface of the current collector. A negative electrode formed by the electrode layer of the adhesive and a separator disposed between the positive electrode and the negative electrode, and the thickness of the separator is usually 1 to 30 μm as described above. When the thickness of the separator is too small when it is too thin, it may cause damage due to vibration or the like, which may cause deterioration of the electrochemical device. The separator may be made of a porous film, and its material may be exemplified by, for example, -28-201230478, such as polypropylene, polyethylene, or the like. When a lithium ion secondary battery is constituted by using the obtained electrochemical device electrode, an electrolyte obtained by dissolving a lithium compound in a solvent is used as the electrolytic solution. Examples of the electrolyte include, for example, LiC104, LiBF4, Lil, LiPF6, L1CF3SO3 'LiAsF6 'LiSbF6, LiAlCl4, LiCl, LiBr, LiB(C2H5) 4 ' L1CH3SO3 ' L1C4F9SO3 ' Li ( C4F3S02 ) 2N , Li[ ( C〇2) 2 ] 2B and so on. Examples of the solvent include carbonates such as propyl carbonate, ethyl carbonate, butyl carbonate, dimethyl carbonate, diethyl carbonate, and ethyl methyl carbonate; and r-butyrolactone. Esters; ethers such as trimethoxydecane, iota, dimethoxyethane, diethyl ether, 2-ethoxyethane, tetrahydrofuran, 2-methyltetrahydrofuran; An oxolane such as 1,3-dioxolane or 4-methyl-1,3-dioxolane; a nitrogen-containing compound such as acetonitrile or nitromethane: methyl formate, Ethyl acetate, butyl acetate, methyl propionate, ethyl propionate, triethyl phosphate, etc.; diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, etc. Methyl ethers; ketones such as acetone, diethyl ketone, methyl ethyl ketone, methyl isobutyl ketone; anthraquinones such as cyclobutyl hydrazine; oxazolidines such as 2-methyl-2-oxazolidinone Ketones; sultones such as 1,3-propane sultone, 4-butane sultone, and naphthalene sultone. Further, when the electric double layer capacitor is formed using the electrode of the electrochemical device of the present invention, it is used in the above solvent to dissolve tetraethylammonium tetrafluoroborate, triethylmethylammonium tetrafluoroborate, and tetraethylammonium hexafluorophosphate. The electrolyte formed by the electrolyte. S. -29 - 201230478 When the lithium ion capacitor is formed using the electrode of the electrochemical device of the present invention, the same electrolyte solution as that of the above-described lithium ion battery can be used. [Examples] Hereinafter, the present invention will be specifically described based on examples and comparative examples, but the present invention is not limited to the examples and comparative examples. Further, the "parts" and "%" described in the examples are based on mass unless otherwise specified. Further, the measurement methods of various physical properties and the evaluation methods of the properties are as follows. [Number average particle diameter]: The binder was measured using a thick particle size analyzer "FPAR 1 000" (manufactured by Otsuka Electronics Co., Ltd.) equipped with an automatic sampler. Further, if the average particle diameter does not change in the particles before and after the foreign matter removal (filtration step), the electrode for the electrochemical device electrode after the foreign matter removal can be evaluated as having no change in the properties of the adhesive (that is, as The electrode of the electrochemical device electrode maintains the same function as the conventional binder). [Number of particles per 1 mL]: A number-counting particle size distribution measuring instrument "Accusizer 7 8 0APS" manufactured by Particle Sizing Systems was used as a particle counter. Specifically, the blank measurement is repeated with ultrapure water until the number of coarse particles measured becomes "4000 / ml (0·56 μιη)" (that is, "the particle diameter is larger than 0. The particles of 56 μm are 4,000 or less in 1 ml. Subsequently, 100 ml of a binder (sample) diluted 10 times with ultrapure water was prepared, and the sample -30-201230478 was set in the aforementioned particle size distribution analyzer. After the setting, the sample is automatically diluted by the particle size distribution analyzer in such a manner as to obtain an optimum concentration. Subsequently, the number of particles per 1 mL in the aforementioned samples was measured by the above-described particle size distribution analyzer to calculate the average enthalpy. This average enthalpy was multiplied by 1 , as the number of particles per 1 mL of the binder. [The presence or absence of a hard short circuit]: First, make a positive electrode and a negative electrode. The details will be described below. (Production of the negative electrode) In the "TK HIBISMIX 2P-03" manufactured by PRIMIX Co., Ltd., it is converted into a solid content. "CMC2200" manufactured by DAICEL Chemical Co., Ltd., which is a tackifier, and 100 parts of graphite as a negative electrode active material in terms of solid content, and 68 parts of water were stirred at 60 rpm for 1 hour. Subsequently, an electrode for an electrochemical device electrode before removal of foreign matter in the conversion of the solid content of the polymer contained therein or after removal of the foreign matter was added, and the mixture was further stirred for 1 hour to obtain a paste. After putting 34 parts of water into the obtained paste, the mixture was stirred at 200 rpm for 2 minutes, stirred at 200 rpm for 5 minutes, and stirred at 1800 rpm under vacuum using a stirring deaerator (product name "Defoaming Taro" by THINKY Co., Ltd.). Stir 1. The mixture was stirred and mixed in 5 minutes to prepare a slurry for an electrochemical device. Then, on the surface of the current collector (flat-plate current collector) formed of the copper foil, the prepared electrochemical method was uniformly applied by a doctor blade coating method so that the film thickness after drying became 100 μm. The slurry for the apparatus was dried at 120 ° C for 20 -31 - 201230478 minutes to form a dry slurry layer on the surface of the current collector. Subsequently, the density of the obtained electrode layer was 1. In a manner of 5 g/cm3, the current collector on which the dry slurry layer was formed on the surface was subjected to press working by a roll press. Thus, the negative electrode formed of the current collector and the electrode layer formed on the surface (one surface) of the current collector was modulated. (Production of the positive electrode) First, 4 parts (in terms of solid content) of PCdF (polyvinylidene fluoride) and 1 part of a mixture were placed in a biaxial planetary mixer (TK HIBISMIX 2P-03: manufactured by PRIMIX Co., Ltd.). (lithium iron phosphate as a positive electrode active material in terms of solid content), 5 parts (in terms of solid content) of acetylene black as a conductive agent, and 25 parts of N-methylpyrrolidone (NMP), stirred at 60 rpm 1 hour. Subsequently, after adding 10 parts of NMP, stirring was carried out using a stirring deaerator (degassing Ryotaro: manufactured by THINKY Co., Ltd.) at 2 Torr for 2 minutes, at 1800 rpm for 5 minutes, and under vacuum at 1 800 rpm. . The mixture was stirred and mixed in 5 minutes to prepare a slurry for the positive electrode. Then, the slurry for the positive electrode was uniformly applied to the surface of the current collector (flat-plate current collector) formed of the aluminum foil by a doctor blade coating method so that the film thickness after drying became 90 μm. The drying treatment was carried out for 20 minutes at ° C to form a dry slurry layer on the surface of the current collector. Subsequently, the density of the obtained electrode layer was changed to 3. In the manner of 8 g/cm3, the current collector on which the dry slurry layer was formed on the surface was subjected to press working by a roll press. Thus, the positive electrode formed of the above-described current collector and the electrode layer formed on the surface (one surface) of the current collector is prepared. -32- 201230478 (Production of Battery) Next, two sheets of the outer packaging aluminum sealing sheet made of a rectangular aluminum foil film are laminated, and three of the four outer periphery of the outer packaging aluminum sealing sheet are joined to each other. The outer side of the package was left unbonded, and the negative electrode cut into 50 mm x 25 mm was placed. Next, a separator (trade name "CELGUARD #2400") (manufactured by CEL GU A RD, thickness: 25 μmη) made of a polyethylene porous film cut into 54 mm x 27 mm was placed on the negative electrode, and was not allowed to be placed. The way in which air enters is injected into the outer casing. Subsequently, the foregoing positive electrode cut into 48 mm x 23 mm was placed on the above-mentioned spacer (position opposite to the negative electrode). Subsequently, the unbonded side of the outer package is joined by heat pressing with a heating sealing device, thereby producing a battery (electrochemical device) composed of a two-pole single-layer cell. . Further, the electrolytic solution used was a solution of LiPF62 dissolved in a solvent of ethyl carbonate/methyl carbonate ethyl ester = 1/1 at a concentration of 1 mol/liter. These operations are carried out in a glove box. Next, one battery was fabricated in accordance with the above-described production method, and the fabricated battery was subjected to a storage test at 60 °C. Specifically, it will be a constant current (0. 2C) - constant voltage (4. 2V) way, charging 2. 5 hours, to set the current (0. 2C) mode discharge, again with constant current (0. 2C) - constant voltage (4. 2V) way to charge 2. One battery of 5 hours was placed in a thermostat set at 60 ° C for 30 days. Next, the open circuit voltage (OCV) of each of the batteries after standing for 30 days was measured and evaluated. Regarding the evaluation, the tendency to reduce 〇cv is used as an indicator of the occurrence of a rigid short circuit. Specifically, if the voltage drop of the peak -33-201230478 occurs (if it can be confirmed that 〇cv is lowered), it is judged that it is a hard short circuit, and when the sudden voltage drop occurs (when the instantaneous voltage drops), it is judged that there is Just hard short circuit. [Good yield (%)]: The yield (%) of the battery was calculated from the above evaluation of "the presence or absence of a hard short circuit". Specifically, the formula: the yield rate of the battery (%) = [ { (the number of batteries in which the rigid short circuit is tested) 1 (the number of batteries in which the hard short circuit occurs)} / (Is there a hard short circuit? The number of batteries tested)) x 100 is calculated. If the yield (%) is 98% or more, it is judged as "good". If it is 99% or more, it is judged to be "better" because productivity is extremely high. (Example 1) In a reactor equipped with an adjustable temperature of a stirrer, 200 parts of water, sodium dodecylbenzenesulfonate, was fed at a time. 1 part, potassium persulfate 1. ' 'Sodium hydrogen sulfite 0. 5 parts, methyl styrene dimer 〇. 2 parts, dodecyl mercaptan 0. 1 part, from butadiene as a conjugated diene. 0 parts, styrene as an aromatic vinyl compound. 5 parts of methyl methacrylate as a (meth) acrylate compound 3. 5 parts of a polymerizable monomer (monomer composition (a)) of 25 parts of ethyl acrylate as an ethylenically unsaturated carboxylic acid and 2 parts of itaconic acid was added to raise the temperature inside the reactor to The polymerization was carried out for 2 hours at 70 ° C (first stage). Next, after confirming that the polymerization conversion ratio was 80% or more, the internal temperature of the reactor was maintained at 70 ° C to 30 ° C., and the butadiene 3 as a conjugated diene was added to the vessel over a period of 6 hours. 5 parts of styrene as an aromatic vinyl compound. 5 parts of methyl methacrylate as a (meth) acrylate compound. 0 parts, acrylic acid as an ethylenically unsaturated carboxylic acid. 5 parts of the polymerizable monomer (monomer composition (b)) of 5 parts and itaconate was added and polymerized. At this time, α-methylstyrene dimer was added to the above container at a point of 3 hours from the start of the addition of the monomer composition (b). 5 parts and dodecyl mercaptan 0. 1 serving. After the addition of the monomer composition (b), the temperature in the vessel is raised to 80 ° C, and further reacted for 2 hours (second stage), and then, after the completion of the polymerization, the pH of the obtained latex is adjusted to 7. 5. The residual monomer was removed by steam distillation and concentrated by a reduced pressure treatment. Subsequently, it was supplied to a Sato-type vibrating sifter "1 200D-1S special type" (manufactured by Akira Sangyo Co., Ltd.) to which a filter having a mesh of 250 mesh was attached, and an electrode for an electrochemical device electrode before foreign matter removal was obtained. The solid concentration of the binder for the electrode of the electrochemical device before removal of the foreign matter obtained is 48. 5 mass%, ρΗ7·8, viscosity 1 19 mPa · s. Next, the electrode assembly for electrode of the electrochemical device before the removal of the foreign matter is filtered (filtering step) by the filter device 100 shown in Fig. 1. The filter device 100 shown in Fig. 1 includes a supply tank 1 for storing and supplying an electrode for an electrochemical device electrode before foreign matter removal, and a metering pump for flowing a binder for an electrochemical device electrode before a foreign matter is removed at a constant flow rate. 2. A filter having a sputum filter (not shown) and a casing for housing (installing) the tamper filter, a pulsation preventer 3 located in the middle of the dosing pump 2 and the filter 4 S· -35- 201230478 The first pressure gauge 7a disposed between the pulsation preventer 3 and the filter 4, and the second pressure gauge 7b disposed downstream of the damper 4. Further, the furnace device 1A includes a return conduit 6 for returning the adhesive from the filter 4 to the supply tank 1, and a discharge conduit 5 for discharging the electrode for electrochemical device electrodes filtered by the filter 4. In the present embodiment, the filter 4 is attached to a casing of the depth type "PROFILE II" (manufactured by Nippon POLE Co., Ltd., rated filtration accuracy ΙΟμηη, length 1 吋). The dosing pump 2 uses an air-driven double diaphragm pump to make the differential pressure before and after the filter become 〇. 34MPaG. Further, the number average particle diameter of the binder for the electrochemical device electrode filtered by the filtration device 100 shown in Fig. 1 was 1 77 nm. Further, in Examples 1 to 5 and Comparative Examples 1 to 3, the number average particle diameter was measured by a thick particle size analyzer "FPAR1000" (manufactured by Otsuka Electronics Co., Ltd.) equipped with an automatic sampler. The above various evaluations were carried out for the electrochemical device electrode binder filtered by the filtration device 1 shown in Fig. 1. The evaluation results are shown in Table 1. As shown in Table 1, in the present embodiment, the number of particles per 1 mL of the particle size and the particle size of 15 μm or more are less than 20 μm when the electrode for the electrode of the electrochemical device is too concentrated by the filter device 100. The number of particles and the number of particles having a particle diameter exceeding ΙΟμηη of less than 15 μm are all one. -36- 201230478 [Table i] Example 1 Comparative Example 1 Number of particles per lmL (pieces/mL) Particle size 20 μπι or more 0 4000 Particle size 15 μmη or more up to 20 μιη 0 32000 Particle size exceeding ΙΟμπι 未15 μιη 0 --- -- 120000 Number average particle size (nm) 177 177 Whether there is a hard short circuit <fnrr ΙΜΓ yi >> Yield (%) 99 95 (Comparative Example 1) "Adhesive for electrode of electrochemical device before foreign matter removal" before filtration by filter device 100 shown in Fig. 1, The above various evaluations were carried out in the same manner as in Example 1. The evaluation results are shown in Table 1. (Example 2) A binder for an electrode of an electrochemical device before removal of foreign matter was obtained in the same manner as in Example 1. The electrode for an electrochemical device electrode before removal of the foreign matter was filtered using a filter device. In the filter device used in the present embodiment, a one-depth type filter "PROFILE II" (manufactured by Nippon POLE Co., Ltd., rated filtration accuracy: 20 μm, length 1 吋) is used instead of the filter shown in Fig. 1. The depth type 匣 filter "PROFILE II" of the device 100 (manufactured by Sakamoto POLE Co., Ltd., rated filtration accuracy 10 μιη, length 1 吋).尙, the differential pressure before and after the filter was 0.25 MPaG. Further, the number average particle diameter in the binder for the electrochemical device electrode after filtration was 177 nm. The above various evaluations were carried out for the electrode for electrochemical device electrodes filtered by the filtration device. The evaluation results are shown in Table 2. -37-201230478 (Comparative Example 2) The above various evaluations were carried out in the same manner as in Example 2 except for "adhesive for electrochemical device electrode before foreign matter removal" before filtration by the filtration apparatus used in Example 2. The evaluation results are shown in Table 2. [Table 2] Example 2 Comparative Example 2 Number of particles per 1 mL (number / mL) Particle size 20 μηι or more 0 18000 Particle size 15 μπχ [^ Up to 20 μηι 32000 37000 Particle size exceeding 1 〇μηι under 15 μιη 484000 142000 Number average Particle size (nm) 177 177 The presence or absence of a hard short circuit J \ \ Good yield (%) 99 95 (Example 3) An electrode binder for an electrochemical device before removal of foreign matter was obtained in the same manner as in Example 1. The electrode for an electrochemical device electrode before removal of the foreign matter was filtered using a filter device 1 shown in Fig. 1 similar to that of Example 1. Further, in the present Example, the pressure difference before and after the filtration was 〇.38 MPaG, and the filtrate which was filtered for 5 minutes after the filtration device 1 〇〇 was started was sampled, and various evaluations as described above were carried out. The evaluation results are shown in Table 3. Further, the number average particle diameter of the binder for the electrochemical device electrode after filtration was 177 nm. -38- 201230478 [Table 3] Example 3 Example 4 Example 5 Comparative Example 3 Number of particles per 1 mL (number/mL) Particle size 20 μm or more 0 0 0 11000 Particle size 15 μm or more and less than 20 μιη 0 0 0 34000 The diameter exceeds 1 and does not reach 15μπι 10000 24000 47000 131000 Number average particle diameter (nm) 177 177 177 177 Hard or short circuit with or without *frrc Μ y\\\ Medium yield (%) 99 99 99 95 (Example 4) The filtrate (electrochemical device electrode binder filtered by a filtration device) was sampled in the same manner as in Example 3 except that the filtrate was sampled after 1 minute of filtration. The above various evaluations were carried out on the obtained filtrate. The evaluation results are shown in Table 3. Further, the number average particle diameter of the binder for the electrode of the electrochemical device after filtration was 177 nm. (Example 5) A filtrate (adhesive for electrochemical device electrodes filtered by a filtration device) was sampled in the same manner as in Example 3 except that the filtrate was sampled after 15 minutes from the start of filtration. The above various evaluations were carried out on the obtained filtrate. The evaluation results are shown in Table 3. Further, the number average particle diameter of the binder for the electrode of the electrochemical device after filtration was 1 77 nm. (Comparative Example 3) The above various evaluations were carried out in the same manner as in Example 3, except for "adhesive for electrochemical device electrode before foreign matter removal" before filtration by the filtration apparatus used in Example 3. The evaluation results are shown in Table 3. Further, the number average particle diameter of the binder for the electrode of the electrochemical device after filtration was 177 nm. As can be seen from Table 3, the binders for electrode electrodes of the electrochemical devices of Examples 1 to 5 were confirmed to be usable as damages such as the separator when compared with the binders for electrode electrodes of the electrochemical devices of Comparative Examples 1 to 3. A material that is extremely small in incidence and high in safety and that constitutes an electrode of an electrochemical device. (Examples 6 to 10 and Comparative Examples 4 to 10) In Examples 6 and 7, and Comparative Examples 4 to 7, JSR TRD200 1 (manufactured by JSR Corporation) was used as the electrode for electrochemical device electrodes, and the examples were used. 8 to 10 and Comparative Examples 8 to 10, each of the electrochemical device electrode binders (filtered electrochemical device electrode adhesives) prepared in Examples 1 to 3 shown in Table 5 were used. The foregoing method evaluates the presence or absence of a hard short circuit and the yield. In addition, the "6-month preservation" evaluation shown below was performed. [6-month storage]: The electrode for electrochemical device electrodes was placed in a storage container, and the storage temperature (°C), the ratio of the volume of the void portion to the internal volume of the container (void ratio (%),), and the void portion were observed. The oxygen concentration in the gas remaining in the gas is the conditions described in Tables 4 and 5. Subsequently, it was left to be stored for 6 months. After storage for 6 months, the presence or absence of foreign matter in the adhesive for electrode of the electrochemical device and the state of the container were visually observed and evaluated. The evaluation results are shown in Tables 4 and 5. Further, the oxygen concentration is adjusted after the electrode for electrochemical device electrodes is placed in a storage container, and high-purity nitrogen is blown into the container to perform nitrogen substitution. -40- 201230478 The presence or absence of foreign matter was evaluated. When the condensate (foreign matter) was visually confirmed, it was shown to be defective (indicated as "N" in Table 4'), and it was indicated as good when no aggregate was observed (Tables 4 and 5). The middle is indicated as "G"). The evaluation of the container state was expressed as good when it was not visually observed that the appearance of the container was changed (indicated as "G" in Tables 4 and 5), and it was found to be defective when visually confirming that the appearance of the container was changed (indicated in Tables 4 and 5). It is "N"). Further, in Comparative Examples 5, 6, 8, and 9, "N (leakage, deformation)" indicates that the container was deformed outward and the adhesive was leaked. In Tables 4 and 5, "clean container" means a clean container of 20 liter square cans sold by AICELLO. "Clean p〇LY container" means that the inside of a commercially available 20-liter square can-type polypropylene container is cleaned in a clean room using pure water. "Metal can" means a commercially available metal 1 bucket.
-41 - 201230478 【寸«〕-41 - 201230478 [inch«]
比較例7 JSRTRD2001 金屬罐 10.0 18% Ο 〇 00 比較例6 JSRTRD2001 乾淨POLY容器 〇 (N Ο s D, z Ν(漏液、變形） 比較例5 JSR TRD2001 金屬罐 Ο B 〇< a N(漏液、變形） 比較例4 JSRTRD2001 乾淨容器 〇 in <Ν 18% 〇 § 實施例7 JSR TRD2001 乾淨POLY容器 ο B a, a _ o 〇 鹿 00 ON 實施例6 JSR TRD2001 乾淨容器 Ο (Ν S a. a, m o 〇 壊 〇〇 Os tliiml iifi gn Ιρι 保存容器 保存溫度（°C) 空隙率（％) 氧濃度 i 異物發 生有無 容器樣態 剛硬短路之有無 良品率（％) 6個 月保 1存性I -42- 201230478 Γ--IS 谳】 比較例10 實施例3製作 之黏合劑 金屬罐 〇 10.0 18% Ο m 〇\ 比較例9 實施例2製作 之黏合劑 乾淨POLY容器 ο ε α, Ν (漏液、變形)） 5： 比較娜 實施例1製作 之黏合劑 金屬罐 ο S λ ζ Ν (漏液、變形） 實施例10 實施例3製作 之黏合劑 乾淨容器 a α. Oh I Ο 〇 璀 σ\ 實施例9 實施例2製作 之黏合劑 乾淨POLY容器 ο Β α C1, , ϋ 〇 墀 ON a\ 實施例8 實施例1製作 之黏合劑 乾淨容器 ε α α. ο 〇 璀 a\ ON HS 二D t±t δ圏 ιρτ 保存容器 保存溫度（°c) 空隙率（％) 氧濃度 異物發 生有無 容器 樣態 剛硬短路之有無 良品率（％) 6個月 保存性 -43- 201230478 由以上結果可確認本發明之保存方法爲有效作爲可防 止凝聚物等之異物發生之保存方法。亦即，可確認依據本 發明之保存方法，於電化學裝置電及用黏合劑之保存中， 難以發生凝聚物等之異物，可提高所製作之電極良率。 [產業上之可能利用性] 本發明之電化學裝置電極用黏合劑可較好地使用作爲 構成例如作爲電子機器之驅動用電源用之電化學裝置之電 極之材料。本發明之電化學裝置電極用漿料可較好地使用 作爲構成例如作爲電子機器之驅動用電源用之電化學裝置 之電極之材料。本發明之電化學裝置電極可較好地使用作 爲構成例如作爲電子機器之驅動用電源用之電化學裝置之 電極。電化學裝置電極用黏合劑之製造方法，爲製造作爲 構成例如作爲電子機器之驅動用電源用之電化學裝置之電 極之材料的電化學裝置電極用黏合劑之方法。電化學裝置 電極用黏合劑之保存方法，爲較好地使用作爲構成例如作 爲電子機器之驅動用電源用之電化學裝置之電極之材料的 電化學裝置電極用黏合劑之保存方法< 【圖式簡單說明】 圖1爲模式性說明本發明之電化學裝置電極用黏合劑 之製造方法之一實施形態中使用之過濾裝置之說明圖。 【主要元件符號說明】 -44- 201230478 1 :供給槽 2 :定量泵 3 :脈動防止器 4 :過濾器 5 :排出導管 6 :返回導管 7a :第一壓力計 7b :第二壓力計 1 0 0 :過濾裝置Comparative Example 7 JSRTRD2001 Metal can 10.0 18% Ο 〇 00 Comparative Example 6 JSRTRD2001 Clean POLY container 〇 (N Ο s D, z Ν (leakage, deformation) Comparative Example 5 JSR TRD2001 Metal can Ο B 〇 < a N (leak Liquid, deformation) Comparative Example 4 JSRTRD2001 Clean container 〇in <Ν 18% 〇§ Example 7 JSR TRD2001 Clean POLY container ο B a, a _ o Elk 00 ON Example 6 JSR TRD2001 Clean container Ο (Ν S a a, mo 〇壊〇〇Os tliiml iifi gn Ιρι Storage container storage temperature (°C) Void ratio (%) Oxygen concentration i Foreign matter occurrence or absence of container-like rigid short-circuit with or without yield (%) 6 months warranty 1 Storage I-42-201230478 Γ--IS 谳] Comparative Example 10 Adhesive metal cans prepared in Example 3 10.0 18% Ο m 〇 \ Comparative Example 9 The adhesive prepared in Example 2 was cleaned by a POLY container ο ε α, Ν (leakage, deformation)) 5: Comparing the adhesive metal can made in Example 1 ο S λ ζ Ν (leakage, deformation) Example 10 The adhesive prepared in Example 3 is a clean container a α. Oh I Ο 〇璀σ\ Example 9 Example 2 The adhesive is a clean POLY container ο Β α C1, , ϋ 〇墀 ON a\ Example 8 The adhesive prepared in Example 1 is a clean container ε α α. ο 〇璀a\ ON HS 二 D t±t δ圏ιρτ Storage container storage temperature (°c) Void ratio (%) Oxygen concentration Foreign matter occurrence or absence of container-like rigid short-circuit with or without yield (%) 6-month storage-43-201230478 From the above results, the preservation method of the present invention can be confirmed In order to prevent the occurrence of foreign matter such as agglomerates, it is possible to prevent the occurrence of foreign matter such as aggregates in the storage of the electrochemical device and the adhesive according to the preservation method of the present invention. The electrode yield of the electrochemical device of the present invention can be preferably used as a material constituting an electrode of an electrochemical device for use as a power source for driving an electronic device. The slurry for an electrochemical device electrode of the present invention can be preferably used as a material constituting an electrode of an electrochemical device used as a power source for driving an electronic device. The electrode of the electrochemical device can be preferably used as an electrode constituting, for example, an electrochemical device for driving a power source for an electronic device. The method for producing an electrode for an electrochemical device electrode is a method for producing an electrode for an electrochemical device electrode which is a material constituting an electrode of an electrochemical device for driving a power source for an electronic device. In the method for preserving the binder for an electrode of an electrochemical device, a method for preserving an electrode for an electrochemical device electrode, which is a material for forming an electrode of an electrochemical device for driving a power source for an electronic device, is preferably used. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view schematically illustrating a filtration device used in an embodiment of a method for producing an electrode for an electrochemical device electrode of the present invention. [Description of main component symbols] -44- 201230478 1 : Supply tank 2: Dosing pump 3: Pulsation preventer 4: Filter 5: Discharge conduit 6: Return conduit 7a: First pressure gauge 7b: Second pressure gauge 1 0 0 :filter