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1. WO2020116939 - METHOD OF MANUFACTURING ANODE FOR LITHIUM SECONDARY BATTERY

Publication Number WO/2020/116939
Publication Date 11.06.2020
International Application No. PCT/KR2019/017035
International Filing Date 04.12.2019
IPC
H01M 4/139 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
H01M 4/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
04Processes of manufacture in general
H01M 4/62 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0562 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0561the electrolyte being constituted of inorganic materials only
0562Solid materials
H01M 10/0565 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0565Polymeric materials, e.g. gel-type or solid-type
H01M 10/052 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 김귀룡 JIN, Gui Long
  • 우승희 WOO, Seung He
  • 김효식 KIM, Hyo Sik
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2018-015429004.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD OF MANUFACTURING ANODE FOR LITHIUM SECONDARY BATTERY
(FR) PROCÉDÉ DE FABRICATION D'ANODE POUR BATTERIE SECONDAIRE AU LITHIUM
(KO) 리튬 이차전지용 음극의 제조방법
Abstract
(EN)
The present invention relates to a method of manufacturing an anode for a lithium secondary battery that can effectively perform pre-lithiation. According to the present invention, it is possible to manufacture an anode for a lithium secondary battery in which the anode can be pre-lithiated upon compression without a separate pre-lithiation process, by compressing the anode with a compression press, wherein a lithium alloy layer is formed on a portion where an upper plate of the compression press is in contact with an anode active material layer on a lower plate, and by electrically connecting an anode tab to the compression press through connecting portions disposed on the upper and lower plates of the compression press, respectively.
(FR)
La présente invention concerne un procédé de fabrication d'une anode pour une batterie secondaire au lithium qui peut effectuer efficacement une pré-lithiation. Selon la présente invention, il est possible de fabriquer une anode pour une batterie secondaire au lithium dans laquelle l'anode peut être pré-lithiée lors de la compression sans processus de pré-lithiation séparé, par compression de l'anode avec une presse de compression, une couche d'alliage de lithium étant formée sur une partie où une plaque supérieure de la presse de compression est en contact avec une couche de matériau actif d'anode sur une plaque inférieure, et en connectant électriquement une languette d'anode à la presse de compression par l'intermédiaire de parties de liaison disposées sur les plaques supérieure et inférieure de la presse de compression, respectivement.
(KO)
본 발명은 효과적으로 전리튬화를 수행할 수 있는 리튬 이차전지용 음극의 제조방법에 관한 것으로, 본 발명에 따르면 압착용 프레스로 음극을 압착하되, 상기 압착용 프레스 상판과 하판의 음극활물질층과 접하는 부분에 리튬 합금층이 형성되어 있고, 음극 탭은 압착용 프레스 상판과 하판에 각각 배치된 연결부를 통해 압착용 프레스와 전기적으로 연결되어, 별도의 전리튬화 공정 없이도 압착 시 음극의 전리튬화가 수행될 수 있는 리튬 이차전지용 음극을 제조할 수 있다.
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