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WO2018016194A1 - Batterie secondaire et son procédé de fabrication - Google Patents

Batterie secondaire et son procédé de fabrication Download PDF

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Publication number
WO2018016194A1
WO2018016194A1 PCT/JP2017/020144 JP2017020144W WO2018016194A1 WO 2018016194 A1 WO2018016194 A1 WO 2018016194A1 JP 2017020144 W JP2017020144 W JP 2017020144W WO 2018016194 A1 WO2018016194 A1 WO 2018016194A1
Authority
WO
WIPO (PCT)
Prior art keywords
tab
positive electrode
electrode
tabs
auxiliary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/020144
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English (en)
Japanese (ja)
Inventor
暁宏 茂出木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Envision AESC Energy Devices Ltd
Original Assignee
NEC Energy Devices Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Energy Devices Ltd filed Critical NEC Energy Devices Ltd
Priority to JP2018528430A priority Critical patent/JPWO2018016194A1/ja
Publication of WO2018016194A1 publication Critical patent/WO2018016194A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a secondary battery and a manufacturing method thereof.
  • a secondary battery has a configuration in which a sheet-like positive electrode and a negative electrode are laminated or wound with a separator in between, and are housed in an exterior body such as an exterior film or a metal can together with an electrolyte and sealed. is there. From the exterior body, strip-like electrode lead tabs serving as external terminals (positive electrode terminal and negative electrode terminal) connected to the positive electrode and the negative electrode are respectively drawn out.
  • Recent rechargeable batteries are used not only in various portable devices such as mobile phones, notebook type and tablet type personal computers, but also as power sources for electric assist bicycles, electric cars, hybrid cars and the like. Furthermore, the secondary battery is also used for storing electric power generated by a renewable power source such as a solar battery, which is being introduced to realize a low-carbon society associated with the global warming problem.
  • a renewable power source such as a solar battery
  • the electrode lead-out tab is joined to a positive electrode current collector foil in which a plurality of positive electrode tabs formed at the end of each sheet-like positive electrode are laminated.
  • the electrode lead-out tab is joined to a negative electrode current collector foil in which a plurality of negative electrode tabs formed at the end of each sheet-like negative electrode are laminated.
  • ultrasonic welding is used for joining the electrode lead-out tab and the positive electrode current collector foil and joining the electrode lead-out tab and the negative electrode current collector foil.
  • an electrode lead-out tab is placed on the anvil of an ultrasonic bonding apparatus having an uneven surface, a positive electrode current collector foil or a negative electrode current collector foil is disposed on the upper surface, and a positive electrode current collector foil or a negative electrode current collector is further disposed.
  • a horn of an ultrasonic bonding apparatus is brought into contact with the foil and welded. At this time, if the intensity of the ultrasonic vibration is large, the positive electrode current collector foil or the negative electrode current collector foil in contact with the horn may be cut or damaged by the ultrasonic vibration transmitted from the horn.
  • Patent Document 1 a protective member made of a metal plate is disposed between the positive electrode current collector foil or the negative electrode current collector foil and the horn of the ultrasonic bonding apparatus, and the positive electrode current collector is detected from ultrasonic vibration using the protective member.
  • a method of protecting the electric foil and the negative electrode current collector foil has been proposed.
  • the joint between the electrode lead-out tab and the positive electrode current collector foil and the joint between the electrode lead-out tab and the negative electrode current collector foil are provided in the vicinity of the sheet-like positive electrode and negative electrode, respectively.
  • uneven portions such as burrs and protrusions are generated on the surface of the electrode lead-out tab that contacts the anvil of the ultrasonic bonding apparatus and the surface of the protective member that contacts the horn of the ultrasonic bonding apparatus. Therefore, in the secondary battery in which the joint portion is accommodated in the exterior body, the uneven portion generated on the surface of the joint portion may damage and damage the inside of the exterior film that is the exterior body of the secondary battery.
  • Patent Document 1 in order to protect the inside of the exterior film from the concavo-convex portion, a belt-shaped protective member longer than the width of the electrode lead-out tab is prepared, and the protective member is bent after ultrasonic welding so as to cover the concavo-convex portion. Proposed configuration.
  • ultrasonic welding does not generate electrical resistance at the joint due to its principle.
  • the electrode lead-out tab and each electrode tab are not completely welded, and thus an electrical resistance mainly due to contact resistance is generated.
  • the contact resistance is increased in a positive electrode current collector foil in which a plurality of positive electrode tabs are stacked and a negative electrode current collector foil in which a plurality of negative electrode tabs are stacked. Therefore, when a large current flows through the electrode lead-out tab, the electrical resistance of the joint becomes a factor of wasteful power consumption of the secondary battery.
  • Patent Document 1 proposes a technique for protecting the interior of the exterior film from burrs, protrusions, and the like generated on the surface of the electrode lead-out tab and the surface of the protective member during ultrasonic welding. No technique is shown for reducing electrical resistance.
  • an object of the present invention is to provide a secondary battery that can further reduce the electrical resistance at the joint between the electrode lead-out tab and the electrode tab, and a method for manufacturing the same.
  • the secondary battery of the present invention includes electrode tabs respectively formed at end portions of a plurality of positive electrodes and a plurality of negative electrodes, A strip-like electrode lead-out tab connected to the plurality of positive electrodes or the plurality of negative electrodes via the electrode tabs; A strip-shaped auxiliary tab, Have In a joint portion that joins the plurality of electrode tabs, the electrode lead-out tab, and the auxiliary tab, A plurality of the electrode tabs and the electrode lead-out tabs to be joined are covered integrally with the auxiliary tabs.
  • the manufacturing method of the secondary battery of the present invention includes an electrode tab formed at each end of the plurality of positive electrodes and the plurality of negative electrodes, A strip-like electrode lead-out tab connected to the plurality of positive electrodes or the plurality of negative electrodes via the electrode tabs; A method for producing a secondary battery having Prepare a strip-shaped auxiliary tab, In a joint portion that joins the plurality of electrode tabs, the electrode lead-out tab, and the auxiliary tab, In this method, a plurality of the electrode tabs and the electrode lead-out tabs to be joined are covered by the auxiliary tabs so as to be joined together.
  • FIG. 1 is a plan view showing one structural example of the secondary battery of the present invention.
  • FIG. 2 is a cross-sectional view of the secondary battery shown in FIG. 1 as viewed from the line A-A ′.
  • FIG. 3 is a plan view showing a configuration example of an electrode laminate housed in the battery body of the secondary battery shown in FIG.
  • FIG. 4 is a cross-sectional view of the joined portion of the electrode laminate shown in FIG. 3 as viewed from the line A-A ′.
  • FIG. 5 is a cross-sectional view showing another shape example of the auxiliary tab.
  • FIG. 6 is a cross-sectional view showing another example of the shape of the auxiliary tab.
  • FIG. 7 is a cross-sectional view showing another shape example of the auxiliary tab.
  • FIG. 8 is a cross-sectional view showing another shape example of the auxiliary tab.
  • FIG. 1 is a plan view showing a structural example of the secondary battery of the present invention
  • FIG. 2 is a cross-sectional view of the secondary battery shown in FIG.
  • the secondary battery 1 of the present invention includes a battery body 11, a strip-like positive electrode extraction tab 12, and a negative electrode extraction tab 13.
  • the battery body 11 has a configuration in which an exterior film such as a metal film or a laminate film obtained by laminating a metal thin film and a heat-fusible resin film is used as an exterior body and the outer periphery of the exterior film is sealed by thermal fusion. is there.
  • the strip-like positive electrode extraction tab 12 and the negative electrode extraction tab 13 are each extracted from a sealing portion 14 provided on one short side of the battery body 11.
  • Gasket portions 15 are respectively provided at portions where the positive electrode pull-out tab 12 and the negative electrode pull-out tab 13 are in contact with the sealing portion 14 of the outer film, and the sealing performance of the outer film is enhanced by the gasket portion 15.
  • a sheet-like positive electrode 100 and a negative electrode 200 are stacked inside a battery body 11 with a separator 300 therebetween, and are stored together with an electrolytic solution.
  • a positive electrode tab 105 is provided at each end of each positive electrode 100, and the plurality of positive electrode tabs 105 are joined to the positive electrode lead-out tab 12 at the joint 110.
  • a negative electrode tab 205 is provided at each end of each negative electrode 200, and the plurality of negative electrode tabs 205 are joined to the negative electrode lead-out tab 13 at the joint portion 210.
  • ultrasonic welding is used for joining the positive electrode tab 105 and the positive electrode lead tab 12 and joining the negative electrode tab 205 and the negative electrode lead tab 13.
  • the positive electrode tab 105 and the negative electrode tab 205 are collectively referred to as an “electrode tab”
  • the positive electrode extraction tab 12 and the negative electrode extraction tab 13 are collectively referred to as an “electrode extraction tab”.
  • FIG. 3 is a plan view showing one configuration example of an electrode body housed in the battery body of the secondary battery shown in FIG.
  • the electrode body 400 has a configuration in which a sheet-like positive electrode 100 and a negative electrode 200 are stacked with a separator 300 therebetween. Each end of the electrode body 400 is fixed using an adhesive tape 410 so that the positive electrode 100, the negative electrode 200, and the separator 300 are not displaced from each other.
  • the secondary battery 1 has a configuration in which the electrode body in which the sheet-like positive electrode 100 and the negative electrode 200 are wound with the separator 300 interposed therebetween is enclosed in the battery body 11.
  • FIG. 4 is a cross-sectional view of the joint portion of the electrode laminate shown in FIG. 3 as seen from the line A-A ′.
  • FIG. 4 shows a state in which the positive electrode tab (electrode tab) 105 and the positive electrode extraction tab (electrode extraction tab) 12 are bonded together by using an ultrasonic bonding apparatus together with a configuration example of the bonding portion 110.
  • FIG. 4 only the configuration example of the joint portion 110 between the positive electrode tab 105 and the positive electrode lead tab 12 is shown, but the joint portion 210 between the negative electrode tab 205 and the negative electrode lead tab 13 has the same configuration.
  • the secondary battery of the present invention includes a strip-shaped auxiliary tab 111 that covers the positive electrode pull-out tab 12 and the plurality of positive electrode tabs 105.
  • the auxiliary tab 111 is disposed so as to surround the positive electrode extraction tab 12 and the plurality of positive electrode tabs 105 in a direction orthogonal to the extraction direction of the positive electrode extraction tab 12. Further, in the present invention, the anvil and the horn of the ultrasonic bonding apparatus are brought into contact with and welded to two surfaces parallel to the strip-like positive electrode tab 105 and the positive electrode pull-out tab 12 in the outer peripheral surface of the auxiliary tab 111.
  • the positive electrode tab 105, the positive electrode extraction tab 12, and the auxiliary tab 111 are integrally joined.
  • the same material as the positive electrode pull-out tab 12 and the negative electrode pull-out tab 13 may be used for the auxiliary tab 111.
  • the positive electrode pull-out tab 12 is made of aluminum, aluminum may be used for the auxiliary tab 111 used at the joint 110 of the positive electrode pull-out tab 12.
  • the negative electrode extraction tab 13 is formed of a material different from that of the positive electrode extraction tab 12, the same material as that of the negative electrode extraction tab 13 may be used for the auxiliary tab 111 used in the joint portion 210 of the negative electrode extraction tab 13.
  • nickel, nickel-plated copper plate, nickel-copper clad material covered with nickel, or the like is used for the negative electrode extraction tab 13, for example, nickel, nickel-plated copper plate, nickel-copper clad material covered with nickel, or the like is used.
  • the auxiliary tab 111 functions as a protective member that protects the positive electrode tab 105 during ultrasonic welding.
  • the positive tab 105 separated from the positive lead tab 12 has a large contact resistance by welding on two surfaces parallel to the strip-shaped positive tab 105 and the positive lead tab 12 on the outer peripheral surface of the auxiliary tab 111.
  • the positive electrode extraction tab 12 is electrically connected via the auxiliary tab 111. Therefore, the electrical resistance at the joint 110 between the positive electrode tab (electrode lead tab) 12 and the positive electrode tab (electrode tab) 105 can be further reduced.
  • the negative electrode tab 205 can be protected from ultrasonic vibration and the electrical resistance at the joint portion 210 can be further reduced.
  • FIG. 4 shows an example in which a plurality of positive electrode tabs 105 are stacked on the upper surface (one surface) side of the positive electrode extraction tab 12, but the plurality of positive electrode tabs 105 are formed on the upper surface (one surface) of the positive electrode extraction tab 12. ) Side and a lower surface (the other surface) side opposite to the upper surface. If the plurality of positive electrode tabs 105 are divided and arranged on one surface side and the other surface side of the positive electrode extraction tab 12, the number of positive electrode tabs 105 stacked on each surface can be reduced.
  • the electrical resistance at the joint 110 can be further reduced as compared with the configuration in which the positive electrode tabs 105 are arranged only on one surface of the positive electrode extraction tab 12.
  • the configuration in which the plurality of positive electrode tabs 105 are divided and arranged on one surface side and the other surface side of the positive electrode extraction tab 12 can also be applied to the case where the auxiliary tab 111 shown in FIGS. 5 to 8 described later is used.
  • an auxiliary tab 111 having a U-shaped cross section when viewed from the line AA ′ of the electrode laminate shown in FIG. 3 is provided, and a positive electrode tab 105 and a positive electrode extraction tab are provided in the concave portion of the auxiliary tab 111.
  • the auxiliary tab 111 is not limited to the shape shown in FIG. 5 to 8 show other examples of the shape of the auxiliary tab.
  • FIGS. 5 to 8 are sectional views taken along the line A-A 'of the electrode laminate shown in FIG. 3, similarly to FIG. 5 to 8, as in FIG. 4, together with the configuration example of the joint portion 110, the positive electrode tab 105 and the positive electrode lead-out tab 12 are combined with the strip-shaped positive electrode tab 105 and the positive electrode using an ultrasonic bonding apparatus. A state in which welding and joining are performed on two surfaces parallel to the drawer tab 12 is shown.
  • FIGS. 5 to 8 show only the configuration example of the joint portion 110 for joining the positive electrode tab 105 and the positive electrode lead tab 12, but the joint portion 210 for joining the negative electrode tab 205 and the negative electrode lead tab 13 is the same. It is a configuration.
  • FIG. 5 shows an example in which a plurality of positive electrode tabs 105 and positive electrode pull-out tabs 12 are respectively arranged in the recesses of the auxiliary tab 111 having a U-shaped cross section, and both end portions of the auxiliary tab 111 are bent inward in an L shape. Is shown.
  • the auxiliary tab 111, the positive electrode pull-out tab 12, and the plurality of positive electrode tabs 105 are formed on two surfaces parallel to the strip-shaped positive electrode tab 105 and the positive electrode pull-out tab 12 on the outer peripheral surface of the auxiliary tab 111, The horns are brought into contact with each other and welded together.
  • FIG. 5 shows an example in which both end portions of the auxiliary tab 111 are bent inward in an L-shape in a direction parallel to the strip-like positive electrode tab 105 and the positive electrode extraction tab 12. In the thickness direction of the tab 105 and the positive electrode pull-out tab 12, both end portions may be bent inward in an L shape.
  • the positions of the auxiliary tab 111 with respect to the positive electrode tab 105 and the positive electrode pull-out tab 12 are fixed by bending both ends of the auxiliary tab 111 inward in an L shape. Is suppressed. Similar effects can be obtained with the shape of the auxiliary tab 111 shown in FIGS.
  • FIG. 6 includes an auxiliary tab 111 and a metal plate 112 having a U-shaped cross section, and a positive electrode pull-out tab 12 and a plurality of positive electrode tabs 105 are disposed in the recess of the auxiliary tab 111, and the recess of the auxiliary tab 111 is formed on the metal plate.
  • An example in which the recess 112 is closed is shown.
  • the auxiliary tab 111, the metal plate 112, the positive electrode pull-out tab 12, and the plurality of positive electrode tabs 105 are two surfaces parallel to the strip-shaped positive electrode tab 105 and the positive electrode pull-out tab 12 among the outer peripheral surfaces of the auxiliary tab 111 and metal plate 112
  • the anvil and horn of the ultrasonic bonding apparatus are brought into contact with each other and welded together to join together.
  • the metal plate 112 may be formed using the same material as the auxiliary tab 111.
  • FIG. 6 shows an example in which the plurality of positive electrode tabs 105 are divided and arranged on one surface side and the other surface side of the metal plate 112 located in the concave portion of the auxiliary tab 111.
  • the tab 105 may not be divided and arranged.
  • the plurality of positive electrode tabs 105 may be collectively arranged on one surface side or the other surface side of the metal plate 112 located in the recess of the auxiliary tab 111.
  • FIG. 7 shows that a plurality of positive electrode tabs 105 and positive electrode pull-out tabs 12 are respectively disposed in the recesses of the auxiliary tab 111 having a U-shaped cross-section with one of the opposite sides extended, and the extended one end portion is An example of a shape folded back into the recess of the auxiliary tab 111 is shown.
  • the auxiliary tab 111, the positive electrode pull-out tab 12, and the plurality of positive electrode tabs 105 are formed on two surfaces parallel to the strip-shaped positive electrode tab 105 and the positive electrode pull-out tab 12 on the outer peripheral surface of the auxiliary tab 111, The horns are brought into contact with each other and welded together.
  • FIG. 7 shows an example in which a plurality of positive electrode tabs 105 are divided and arranged on one surface side and the other surface side of the auxiliary tab end portion folded back into the recess. It is not necessary to divide and arrange.
  • the plurality of positive electrode tabs 105 may be collectively arranged on one surface side or the other surface side of the auxiliary tab end portion folded back into the recess.
  • FIG. 8 shows an example of a shape in which the positive electrode tab 105 and the positive electrode pull-out tab 12 are respectively disposed in the concave portion of the U-shaped auxiliary tab 111 and both end portions of the auxiliary tab 111 are folded back into the concave portion.
  • the auxiliary tab 111, the positive electrode pull-out tab 12, and the plurality of positive electrode tabs 105 are formed on two surfaces parallel to the strip-shaped positive electrode tab 105 and the positive electrode pull-out tab 12 on the outer peripheral surface of the auxiliary tab 111, The horns are brought into contact with each other and welded together.
  • FIG. 8 shows an example in which a plurality of positive electrode tabs 105 are divided into three parts at two auxiliary tab ends folded back into the recesses, but the plurality of positive electrode tabs 105 are divided into two parts. It may be arranged or may not be divided and arranged.
  • the plurality of positive electrode tabs 105 may be divided and arranged on one surface side and the other surface side of any one of the auxiliary tab end portions of the two auxiliary tab end portions folded back into the recesses.
  • the plurality of positive electrode tabs 105 may be collectively arranged on one surface side or the other surface side of one of the auxiliary tab end portions of the two auxiliary tab end portions folded back into the recess. .
  • the auxiliary tab 111 is usually formed by being bent so as to have the same size (area) as the surface on which the anvil and horn of the ultrasonic bonding apparatus abut. If the auxiliary tab 111 after bending is larger than the surface contacting the anvil and horn of the ultrasonic bonding apparatus, the periphery of the auxiliary tab 111 may be lifted after ultrasonic welding, and the inside of the exterior film as an exterior body may be damaged. In particular, in the example shown in FIGS. 4 to 7, one end portion or both end portions of the auxiliary tab 111 are located on the outermost periphery of the joint portion 110, so that the end portion that is lifted after ultrasonic welding damages the inside of the exterior film. Part.
  • the auxiliary tab 111 shown in FIG. 8 has a shape in which both end portions are folded back into the recesses, and the end portion which is a sharp portion is not exposed to the outside, so that it is more external than the auxiliary tab 111 shown in FIGS. Failure to damage the inside of the film is suppressed.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Cette batterie secondaire comprend : des languettes d'électrode, chacune étant formée au niveau d'une partie d'extrémité d'une pluralité d'électrodes positives et d'une pluralité d'électrodes négatives ; des languettes de traction d'électrode en forme de bande connectées par l'intermédiaire des languettes d'électrode à la pluralité d'électrodes positives ou à la pluralité d'électrodes négatives ; et une languette auxiliaire en forme de bande. Dans une partie de jonction dans laquelle la languette auxiliaire, chacune des languettes de traction d'électrode et la pluralité correspondante de languettes d'électrode sont jointes, chacune des languettes de traction d'électrodes et la pluralité correspondante de languettes d'électrode à connecter sont assemblées de manière intégrée en étant recouvertes par la languette auxiliaire.
PCT/JP2017/020144 2016-07-21 2017-05-30 Batterie secondaire et son procédé de fabrication Ceased WO2018016194A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018528430A JPWO2018016194A1 (ja) 2016-07-21 2017-05-30 二次電池およびその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-143145 2016-07-21
JP2016143145 2016-07-21

Publications (1)

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WO2018016194A1 true WO2018016194A1 (fr) 2018-01-25

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PCT/JP2017/020144 Ceased WO2018016194A1 (fr) 2016-07-21 2017-05-30 Batterie secondaire et son procédé de fabrication

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JP (1) JPWO2018016194A1 (fr)
WO (1) WO2018016194A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025500838A (ja) * 2022-08-31 2025-01-15 エルジー エナジー ソリューション リミテッド バッテリーセル、バッテリーセルを含むバッテリーモジュール、及びバッテリーモジュールを含むバッテリーパック

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113268U (ja) * 1982-01-26 1983-08-02 古河電池株式会社 極板耳群端子集結装置
JP2001256950A (ja) * 2000-03-10 2001-09-21 Sanyo Electric Co Ltd 非水電解液二次電池
JP2003187778A (ja) * 2001-12-21 2003-07-04 Japan Storage Battery Co Ltd 電 池
JP2003197174A (ja) * 2001-12-25 2003-07-11 Japan Storage Battery Co Ltd 電 池
WO2013031937A1 (fr) * 2011-08-31 2013-03-07 Ｎｅｃエナジーデバイス株式会社 Batterie secondaire au lithium-ion
JP2013534361A (ja) * 2010-08-17 2013-09-02 エルジー・ケム・リミテッド 改善したリード構造の二次電池
JP2014132590A (ja) * 2009-06-17 2014-07-17 Gs Yuasa Corp 電池及び電池の製造方法
JP2015008085A (ja) * 2013-06-25 2015-01-15 株式会社リチウムエナジージャパン 蓄電素子

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113268U (ja) * 1982-01-26 1983-08-02 古河電池株式会社 極板耳群端子集結装置
JP2001256950A (ja) * 2000-03-10 2001-09-21 Sanyo Electric Co Ltd 非水電解液二次電池
JP2003187778A (ja) * 2001-12-21 2003-07-04 Japan Storage Battery Co Ltd 電 池
JP2003197174A (ja) * 2001-12-25 2003-07-11 Japan Storage Battery Co Ltd 電 池
JP2014132590A (ja) * 2009-06-17 2014-07-17 Gs Yuasa Corp 電池及び電池の製造方法
JP2013534361A (ja) * 2010-08-17 2013-09-02 エルジー・ケム・リミテッド 改善したリード構造の二次電池
WO2013031937A1 (fr) * 2011-08-31 2013-03-07 Ｎｅｃエナジーデバイス株式会社 Batterie secondaire au lithium-ion
JP2015008085A (ja) * 2013-06-25 2015-01-15 株式会社リチウムエナジージャパン 蓄電素子

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025500838A (ja) * 2022-08-31 2025-01-15 エルジー エナジー ソリューション リミテッド バッテリーセル、バッテリーセルを含むバッテリーモジュール、及びバッテリーモジュールを含むバッテリーパック

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