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WO2020060131A1 - Électrode d'accumulateur au lithium comprenant du lioh, son procédé de fabrication, et accumulateur au lithium comprenant l'électrode - Google Patents

Électrode d'accumulateur au lithium comprenant du lioh, son procédé de fabrication, et accumulateur au lithium comprenant l'électrode Download PDF

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Publication number
WO2020060131A1
WO2020060131A1 PCT/KR2019/011955 KR2019011955W WO2020060131A1 WO 2020060131 A1 WO2020060131 A1 WO 2020060131A1 KR 2019011955 W KR2019011955 W KR 2019011955W WO 2020060131 A1 WO2020060131 A1 WO 2020060131A1
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WIPO (PCT)
Prior art keywords
lioh
electrode
sulfur
lithium
secondary battery
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Ceased
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PCT/KR2019/011955
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English (en)
Korean (ko)
Inventor
조은경
양두경
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LG Chem Ltd
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LG Chem Ltd
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Filing date
Publication date
Priority claimed from KR1020190113731A external-priority patent/KR102781563B1/ko
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Priority to EP19863761.3A priority Critical patent/EP3761418A4/fr
Priority to US17/044,653 priority patent/US12278375B2/en
Priority to CN201980027986.2A priority patent/CN112042020B/zh
Priority to JP2020561630A priority patent/JP7072673B2/ja
Publication of WO2020060131A1 publication Critical patent/WO2020060131A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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

  • lithium secondary batteries are widely used because they have high energy density and voltage, long cycle life, and low self-discharge rate.
  • the SEI film acts as an ion tunnel to pass only lithium ions, and lithium ions do not react with the negative electrode or other materials again, and the amount of charge consumed in the formation of the SEI film is irreversible capacity. Therefore, it has the property of not reacting reversibly during discharge. Therefore, no further decomposition of the electrolytic solution occurs and the amount of lithium ions in the electrolytic solution is reversibly maintained to maintain stable charging and discharging (J. Power Sources (1994) 51: 79-104). As a result, once the SEI film is formed, the amount of lithium ions is maintained reversibly and the life characteristics of the battery are also improved.
  • lithium-sulfur (Li-S) batteries which have high energy density and are being researched as next-generation batteries that can replace existing lithium-ion batteries, undergo a reduction reaction of sulfur and an oxidation reaction of lithium metal during discharge.
  • Sulfur forms a lithium polysulfide (Li 2 S 2 , Li 2 S 4 , Li 2 S 6 , Li 2 S 8 ) having a linear structure from the ring structure S 8 .
  • the lithium-sulfur battery has a characteristic of showing a step-wise discharge voltage until polysulfide (PS) is completely reduced to Li 2 S. Even in a lithium-sulfur battery, the SEI membrane provides a desirable effect on the characteristics of the battery.
  • the properties of the SEI film depend on the type of the solvent contained in the electrolyte or the properties of additives, etc., and are known as one of the main factors that affect the ions and charges and cause a change in battery performance (Shoichiro Mori, Chemical properties of various organic electrolytes for lithium rechargeable batteries, J.Power Source (1997) Vol. 68).
  • the present inventors have studied the method of effectively forming an SEI film on the surface of an electrode for a lithium secondary battery, and found that the SEI film is easily formed on the surface of the electrode when LiOH is included with the active material in the electrode, thereby completing the present invention.
  • an object of the present invention is to provide an electrode for a lithium secondary battery comprising LiOH and a lithium secondary battery comprising the electrode, which can efficiently form an SEI film on the surface.
  • the present invention provides a method of manufacturing an electrode for a lithium secondary battery including LiOH capable of efficiently manufacturing the electrode.
  • the LiOH may be included in 0.12 to 15 parts by weight based on 100 parts by weight of the active material.
  • It provides a lithium secondary battery comprising the electrode.
  • step (b) the active material impregnated or coated in step (a), or a mixed active material; Conductive agent; And a binder; preparing a slurry composition comprising; And
  • step (d) a sulfur-carbon composite prepared in step (c); Conductive agent; And a binder; preparing a slurry composition comprising; And
  • the electrode for a lithium secondary battery comprising LiOH according to the present invention provides an effect of efficiently forming an SEI film on the surface.
  • the lithium secondary battery of the present invention provides excellent driving characteristics and life characteristics by including the electrode.
  • the method for manufacturing an electrode for a lithium secondary battery containing LiOH of the present invention provides a method for manufacturing an electrode for a lithium secondary battery containing LiOH very efficiently.
  • Example 3 is a graph showing the results of evaluating the cycle life characteristics of the batteries prepared in Examples 9 to 10 and Comparative Example 2 (Experimental Example 2).
  • the present invention relates to an electrode for a lithium secondary battery comprising LiOH.
  • the LiOH is included in an amount of more than 0 to 15 parts by weight based on 100 parts by weight of the active material, preferably 0.012 to 10 parts by weight, more preferably 0.12 to 10 parts by weight, and even more preferably 0.15 to 5 parts by weight .
  • the effect of promoting the formation of the SEI film is no longer increased, but it is not preferable because it results in a decrease in the active material content.
  • the LiOH may be impregnated or coated with the active material, or may be present in a mixed form with the active material.
  • the electrode may be an anode or a cathode. That is, in the lithium ion battery, the SEI film may be required for the positive electrode or the negative electrode depending on the type of the battery. Therefore, in the present invention, LiOH may be used together with a negative electrode active material or a positive electrode active material.
  • an electrode for a lithium secondary battery including the LiOH may be a positive electrode, and in this case, the positive electrode may include a sulfur-carbon composite active material.
  • LiOH may be impregnated or coated with a carbon-based material, but is not limited thereto, and LiOH may be included in a mixed form with a carbon-based material and a sulfur or sulfur compound.
  • the lithium secondary battery electrode containing LiOH may be a negative electrode, and the negative electrode may include a carbon-based material.
  • the carbon-based material may be included in a form in which LiOH is impregnated or coated, and may be included in a form mixed with LiOH, but is not limited thereto.
  • step (b) the active material impregnated or coated in step (a), or a mixed active material; Conductive agent; And a binder; preparing a slurry composition comprising; And
  • (C) applying the prepared slurry on the current collector relates to a method of manufacturing a lithium secondary battery electrode comprising LiOH.
  • the contents of the electrode for a lithium secondary battery including LiOH described above may be applied as it is.
  • water or an organic solvent or a mixture thereof may be used as a solvent in the LiOH solution, but the use of water as the solvent may be more preferable in that the impregnation can be easily performed by dissolving LiOH. have.
  • It relates to a lithium secondary battery comprising a lithium secondary battery electrode containing the LiOH.
  • the present invention will be described in more detail through a lithium-sulfur battery.
  • the present invention is not limited to lithium-sulfur batteries.
  • the sulfur-carbon composite containing LiOH of the present invention may be used as a positive electrode active material for a lithium-sulfur battery, including a non-conductive sulfur and a carbon-based material having electrical conductivity.
  • the sulfur-carbon composite containing LiOH may be prepared by first impregnating and coating LiOH with a carbon-based material, or mixing LiOH and a carbon-based material, and then adding sulfur.
  • the present invention is not limited thereto, and a sulfur-carbon composite may be prepared first, and then LiOH may be added in the same manner as described above.
  • the lithium-sulfur battery undergoes an oxidation-reduction reaction in which the sulfur-sulfur bond of the sulfur-based compound is broken upon discharge, the oxidation number of S decreases, the SS bond is regenerated upon charging, and the oxidation number of S increases. To generate electrical energy.
  • the carbon-based material that can be used in the sulfur-carbon composite of the present invention is one that can impart conductivity to the insulator, sulfur.
  • the carbon-based material may be at least one selected from the group consisting of carbon nanotubes, graphene, graphite, amorphous carbon, carbon black, and activated carbon.
  • carbon nanotubes, graphite, and carbon black are more preferable from the viewpoint of excellent electrical conductivity, specific surface area, and sulfur loading.
  • the carbon nanotube (CNT) may be a single-walled carbon nanotube (SWCNT) or a multi-walled carbon nanotube (MWCNT).
  • the diameter of the CNT is preferably 1 to 200 nm, more preferably 1 to 100 nm, and most preferably 1 to 50 nm. When the diameter of the CNT exceeds 200nm, there is a problem that the specific surface area becomes small and the reaction area with the electrolyte decreases.
  • Natural graphite includes flake graphite, high crystalline graphite, microcrystalline or cryptocrystalline graphite, and artificial graphite is primary or electrographite, secondary.
  • Graphite, graphite fiber, and the like may be used alone or in combination of two or more of the above-described types of graphite.
  • the carbon black may be, for example, one or more selected from the group consisting of acetylene black, Ketjen black, furnace black, oil-furnace black, Columbia carbon, channel black, lamp black, and summer black.
  • the particle size of the carbon black is not limited, but an average particle diameter of 0.01 to 0.5 ⁇ m is preferable in terms of securing a reaction area with the electrolyte.
  • sulfur inorganic sulfur or elemental sulfur (S 8 ) may be preferably used.
  • the method for complexing the sulfur-carbon composite of the present invention is not particularly limited in the present invention, and a method commonly used in the art may be used.
  • the sulfur-carbon composite proposed in the present invention may be a complex mixture of sulfur and a carbon-based material, or may have a core-shell structured coating form or a supported form.
  • the coating form of the core-shell structure is one in which one of the sulfur or carbon-based materials is coated with another material, for example, the surface of the carbon-based material may be wrapped with sulfur or vice versa.
  • the supported form may be a form in which sulfur is supported therein when the carbon-based material is porous.
  • the form of the sulfur-carbon composite can be used in any form as long as it satisfies the content ratio of the sulfur and carbon-based materials, and is not limited in the present invention.
  • the diameter of the sulfur-carbon composite is not particularly limited in the present invention and may vary, but is preferably 0.1 to 20 um, more preferably 1 to 10 um. When the above range is satisfied, there is an advantage that a high loading electrode can be manufactured.
  • the lithium-sulfur battery electrode uses a sulfur-carbon composite as an active material containing LiOH.
  • the lithium-sulfur battery electrode includes an active material layer formed on a current collector, and the active material layer includes a sulfur-carbon composite, a conductive material, a binder, and other additives containing LiOH of the present invention.
  • the conductive material is not particularly limited as long as it has conductivity without causing a chemical change in the battery.
  • graphite such as natural graphite or artificial graphite
  • Carbon black such as carbon black, acetylene black, ketjen black, denka black, channel black, furnace black, lamp black, and summer black
  • Graphene Graphene
  • Conductive fibers such as carbon fibers and metal fibers, such as carbon nanotubes (CNT) and carbon nanofibers (CNF);
  • Metal powders such as carbon fluoride powder, aluminum powder, and nickel powder
  • Conductive whiskers such as zinc oxide and potassium titanate
  • Conductive metal oxides such as titanium oxide
  • Polyphenylene derivatives and the like can be used.
  • the electrode for a lithium-sulfur battery of the present invention may be prepared according to a conventional method, and specifically, a slurry composition prepared by mixing a sulfur-carbon composite containing the active material LiOH of the present invention with a conductive material and a binder in an organic solvent And coated on the current collector and dried, and optionally, compression molded on the current collector to improve electrode density.
  • a slurry composition prepared by mixing a sulfur-carbon composite containing the active material LiOH of the present invention with a conductive material and a binder in an organic solvent And coated on the current collector and dried, and optionally, compression molded on the current collector to improve electrode density.
  • the organic solvent a positive electrode active material, a binder, and a conductive material can be uniformly dispersed, and it is preferable to use one that is easily evaporated.
  • N-methyl-2-pyrrolidone, acetonitrile, methanol, ethanol, tetrahydrofuran, water, isopropyl alcohol and the like
  • the negative electrode according to the present invention includes a negative electrode active material formed on the negative electrode current collector.
  • a material capable of reversibly intercalating or deintercalating lithium ions (Li + ), a material capable of reversibly forming a lithium-containing compound by reacting with lithium ions, lithium metal or lithium alloy can be used.
  • the material capable of reversibly occluding or releasing lithium ions (Li + ) may be, for example, crystalline carbon, amorphous carbon, or a mixture thereof.
  • a material capable of reversibly forming a lithium-containing compound by reacting with the lithium ion (Li + ) may be, for example, tin oxide, titanium nitrate or silicon.
  • the lithium alloy is, for example, lithium (Li) and sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), francium (Fr), beryllium (Be), magnesium (Mg), calcium ( Ca), strontium (Sr), barium (Ba), radium (Ra), aluminum (Al), and tin (Sn).
  • the negative electrode may be a lithium metal or a lithium alloy.
  • the negative electrode may be a thin film of lithium metal, lithium and one or more metals selected from the group Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra, Al and Sn. It may be an alloy of the family.
  • a conventional separator may be interposed between the anode and the cathode.
  • the separator is a physical separator having a function of physically separating an electrode, and can be used without particular limitation as long as it is used as a normal separator. In particular, it is preferable that it has low resistance to ion movement of the electrolyte and has excellent electrolyte moisture absorption ability.
  • the separator enables the transport of lithium ions between the positive electrode and the negative electrode while separating or insulating the positive electrode and the negative electrode from each other.
  • the separator may be made of a porous, non-conductive or insulating material.
  • the separator may be an independent member such as a film, or may be a coating layer added to the anode and / or cathode.
  • a porous polymer film made of a polyolefin-based polymer such as ethylene homopolymer, propylene homopolymer, ethylene / butene copolymer, ethylene / hexene copolymer, and ethylene / methacrylate copolymer is used alone.
  • a conventional porous nonwoven fabric for example, a high melting point glass fiber, a nonwoven fabric made of polyethylene terephthalate fiber or the like may be used, but is not limited thereto.
  • the electrolyte solution according to the present invention is a non-aqueous electrolyte solution containing a lithium salt, and is composed of a lithium salt and a solvent.
  • a non-aqueous organic solvent an organic solid electrolyte and an inorganic solid electrolyte are used.
  • the lithium salt is a material that can be easily dissolved in a non-aqueous organic solvent, for example, LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiB (Ph) 4, LiC 4 BO 8 , LiPF 6 , LiCF 3 SO 3, LiCF 3 CO 2, LiAsF 6, LiSbF 6, LiAlCl 4, LiSO 3 CH 3, LiSO 3 CF 3, LiSCN, LiC (CF 3 SO 2) 3, LiN (CF 3 SO 2) 2, LiN (C 2 F 5 SO 2 ) 2 , LiN (SO 2 F) 2 , chloro borane lithium, lower aliphatic lithium carboxylate, lithium 4 phenyl borate, may be one or more from the group consisting of imide.
  • a non-aqueous organic solvent for example, LiCl, LiBr, LiI, LiClO 4 , LiBF 4 , LiB 10 Cl 10 , LiB (Ph) 4, LiC 4 BO 8
  • the concentration of the lithium salt is 0.1 to 4.0, depending on several factors such as the exact composition of the electrolyte mixture, the solubility of the salt, the conductivity of the dissolved salt, the conditions for charging and discharging the battery, the working temperature and other factors known in the field of lithium-sulfur batteries. M, preferably 0.5 to 2.0 M. If the concentration of the lithium salt is less than the above range, the conductivity of the electrolyte solution may be lowered to deteriorate the battery performance. If the concentration exceeds the above range, the mobility of the lithium ion (Li + ) may decrease due to an increase in the viscosity of the electrolyte solution. It is desirable to select an appropriate concentration.
  • the non-aqueous organic solvent is a substance capable of dissolving a lithium salt well, and preferably N-methyl-2-pyrrolidone, propylene carbonate, ethylene carbonate, butylene carbonate, and dimethyl carbonate , Diethyl carbonate, ethylmethyl carbonate, gamma-butylo lactone, 1,2-dimethoxy ethane, 1,2-diethoxy ethane, 1-ethoxy-2-methoxy ethane, tetraethylene glycol dimethyl ether, Tetrahydroxy franc, 2-methyl tetrahydrofuran, dimethyl sulfoxide, 1,3-dioxolane, 4-methyl-1,3-dioxene, diethyl ether, formamide, dimethylformamide, dioxolane , Acetonitrile, nitromethane, methyl formate, methyl acetate, phosphoric acid triester, trimethoxy methane, dioxolane derivative,
  • the organic solid electrolyte is a polyethylene derivative, a polyethylene oxide derivative, a polypropylene oxide derivative, a phosphoric acid ester polymer, a poly edgeation lysine, polyester sulfide, polyvinyl alcohol, polyvinylidene fluoride, ionic Polymers containing dissociation groups and the like can be used.
  • Li 3 N, LiI, Li 5 NI 2 , Li 3 N - LiI - LiOH, LiSiO 4 , LiSiO 4 -LiI-LiOH, Li 2 SiS 3 , Li 4 SiO 4 , Li 4 SiO 4 -LiI-LiOH, Li 3 PO 4 - Li 2 nitrides such as S-SiS 2 , halides, sulfates, and the like can be used.
  • the non-aqueous electrolyte solution for a lithium-sulfur battery of the present invention may further include a nitric acid or nitrous acid compound as an additive.
  • the nitric acid or nitrite-based compound has an effect of forming a stable film on the lithium electrode and improving charging and discharging efficiency.
  • the nitric acid or nitrite-based compound is not particularly limited in the present invention, but lithium nitrate (LiNO 3 ), potassium nitrate (KNO 3 ), cesium nitrate (CsNO 3 ), barium nitrate (Ba (NO 3 ) 2 ), ammonium nitrate Inorganic nitric acid or nitrite compounds such as (NH 4 NO 3 ), lithium nitrite (LiNO 2 ), potassium nitrite (KNO 2 ), cesium nitrite (CsNO 2 ), and ammonium nitrite (NH 4 NO 2 ); Organic nitric acid such as methyl nitrate, dialkyl imidazolium nitrate, guanidine nitrate, imidazolium nitrate, pyridinium nitrate, ethyl nitrite, propyl nitrite, butyl nitrite, pentyl nitrite, oct
  • the positive electrode, the negative electrode, and the separator included in the lithium-sulfur battery may be prepared according to common components and manufacturing methods, and the external shape of the lithium-sulfur battery is not particularly limited, but is cylindrical, square, or pouch. It may be a type or a coin type.
  • the composition for forming an active material layer was prepared by mixing 88 wt% of LiOH impregnated artificial graphite prepared in Preparation Example 6, 5 wt% of a conductive material, and 7 wt% of a binder with distilled water. The composition was coated on an aluminum current collector in an amount of 6 mg / cm 2 to prepare a conventional positive electrode.
  • Comparative Example 1 Preparation of a positive electrode for a lithium-sulfur battery containing no LiOH
  • the positive electrode for a lithium-sulfur battery containing LiOH of Examples 1 to 5 was punched to coin cell size to prepare five coin cell batteries using the positive electrode as a positive electrode.
  • a positive electrode, a separator, a lithium negative electrode, a gasket, a stainless steel coin, a spring, and a stainless steel top plate were sequentially placed on a stainless steel lower plate, and pressure was applied to assemble the coin cell.
  • a negative electrode for lithium secondary battery containing LiOH of Example 6 (using artificial graphite) was punched to coin cell size to prepare a coin cell battery using the negative electrode as a negative electrode.
  • a LiCoO 2 anode, a separator, a cathode, a gasket, a stainless steel coin, a spring, and a stainless steel top plate were sequentially placed on a stainless steel lower plate, and pressure was applied to assemble the coin cell.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
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Abstract

La présente invention concerne une électrode d'accumulateur au lithium comprenant du LiOH, son procédé de fabrication, et un accumulateur au lithium comprenant l'électrode. L'électrode d'accumulateur au lithium comprenant du LiOH est caractérisée en ce qu'une pellicule de SEI est formée efficacement sur la surface de l'électrode.
PCT/KR2019/011955 2018-09-19 2019-09-17 Électrode d'accumulateur au lithium comprenant du lioh, son procédé de fabrication, et accumulateur au lithium comprenant l'électrode Ceased WO2020060131A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19863761.3A EP3761418A4 (fr) 2018-09-19 2019-09-17 Électrode d'accumulateur au lithium comprenant du lioh, son procédé de fabrication, et accumulateur au lithium comprenant l'électrode
US17/044,653 US12278375B2 (en) 2018-09-19 2019-09-17 Lithium secondary battery electrode comprising LiOH, manufacturing method therefor, and lithium secondary battery comprising electrode
CN201980027986.2A CN112042020B (zh) 2018-09-19 2019-09-17 包含LiOH的锂二次电池用电极、其制造方法和包含所述电极的锂二次电池
JP2020561630A JP7072673B2 (ja) 2018-09-19 2019-09-17 ＬｉＯＨを含むリチウム二次電池用電極、その製造方法、及び当該電極を含むリチウム二次電池

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2018-0111952 2018-09-19
KR20180111952 2018-09-19
KR1020190113731A KR102781563B1 (ko) 2018-09-19 2019-09-16 LiOH를 포함하는 리튬 이차 전지용 전극, 그의 제조방법, 및 상기 전극을 포함하는 리튬 이차 전지
KR10-2019-0113731 2019-09-16

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058993A2 (fr) 2008-11-20 2010-05-27 주식회사 엘지화학 Batterie secondaire lithium aux caractéristiques améliorées
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KR20180017975A (ko) * 2016-08-12 2018-02-21 주식회사 엘지화학 황-탄소 복합체 및 이를 포함하는 리튬-황 전지
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