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1. WO2020111746 - METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY

Publication Number WO/2020/111746
Publication Date 04.06.2020
International Application No. PCT/KR2019/016401
International Filing Date 26.11.2019
IPC
H01M 10/0585 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
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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 2/26 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
20Current-conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
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 4/62 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
CPC
H01M 10/052
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
H01M 10/0562
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
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 10/0585
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
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 2/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
14Separators; Membranes; Diaphragms; Spacing elements
16characterised by the material
H01M 2/26
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
20Current conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
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
10-2018-014716126.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY
(FR) PROCÉDÉ DE FABRICATION DE BATTERIE SECONDAIRE AU LITHIUM
(KO) 리튬 이차전지의 제조방법
Abstract
(EN)
The present invention relates to a method of manufacturing a lithium secondary battery capable of effectively performing pre-lithiation. According to the present invention, when manufacturing a lithium secondary battery, lithium foil having a closed band shape and having an opening formed in the center thereof is prepared, and a negative electrode is disposed inside the opening of the lithium foil, wherein the negative electrode and the lithium foil do not overlap each other, and the negative electrode tab is disposed to be in contact with the lithium foil so that it is possible to perform pre-lithiation of the negative electrode without a separate pre-lithiation process.
(FR)
La présente invention concerne un procédé de fabrication d'une batterie secondaire au lithium capable de réaliser efficacement une pré-lithiation. Selon la présente invention, lors de la fabrication d'une batterie secondaire au lithium, une feuille de lithium ayant une forme de bande fermée et ayant une ouverture formée dans son centre est préparée, et une électrode négative est disposée à l'intérieur de l'ouverture de la feuille de lithium. L'électrode négative et la feuille de lithium ne se chevauchent pas l'une sur l'autre, et la languette d'électrode négative est disposée de façon à être en contact avec la feuille de lithium de sorte qu'il est possible d'effectuer une pré-lithiation de l'électrode négative sans processus de pré-lithiation séparé.
(KO)
본 발명은 효과적으로 전리튬화를 수행할 수 있는 리튬 이차전지의 제조방법에 관한 것으로, 본 발명에 따르면 리튬 이차전지 제조 시 중앙에 개구부가 형성되어 있는, 폐쇄된 띠 형상의 리튬 포일을 준비하고, 이 리튬 포일의 개구부 내부에 음극을 배치하되, 상기 음극과 상기 리튬 포일은 겹치지 않도록 하고, 음극 탭은 리튬 포일과 접하도록 배치함으로써 별도의 전리튬화 공정 없이도 음극의 전리튬화를 수행할 수 있다.
Also published as
Latest bibliographic data on file with the International Bureau