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1. WO2022001968 - CURRENT COLLECTOR AND PREPARATION PROCESS THEREFOR, POLE PIECE AND PREPARATION PROCESS THEREFOR, AND LITHIUM BATTERY

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Publication Number WO/2022/001968
Publication Date 06.01.2022
International Application No. PCT/CN2021/102797
International Filing Date 28.06.2021
IPC
H01M 4/04 2006.1
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 4/13 2010.1
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
H01M 4/139 2010.1
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 4/66 2006.1
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
64Carriers or collectors
66Selection of materials
H01M 10/056 2010.1
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
H01M 10/42 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
CPC
C23C 14/24
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
24Vacuum evaporation
H01M 10/056
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
H01M 10/42
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 4/04
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 4/13
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
H01M 4/139
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
Applicants
  • 厦门海辰新能源科技有限公司 XIAMEN HITHIUM NEW ENERGY TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 张芹 ZHANG, Qin
Agents
  • 广州德科知识产权代理有限公司 GUANGZHOU DEKE INTELLECTUAL PROPERTY AGENT LTD.
Priority Data
202010623786.830.06.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) CURRENT COLLECTOR AND PREPARATION PROCESS THEREFOR, POLE PIECE AND PREPARATION PROCESS THEREFOR, AND LITHIUM BATTERY
(FR) COLLECTEUR DE COURANT ET SON PROCÉDÉ DE PRÉPARATION, PIÈCE POLAIRE ET SON PROCÉDÉ DE PRÉPARATION, ET BATTERIE AU LITHIUM
(ZH) 集流体及其制备工艺、极片及其制备工艺及锂电池
front page image
Abstract
(EN) A current collector and a preparation process therefor, a pole piece and a preparation process therefor, and a lithium battery. The current collector comprises a sheet-shaped body (100), wherein the sheet-shaped body (100) is provided with a tab welding region (10), a tab bending region (20) and a coating region (30) which are sequentially arranged. At least one surface of the tab bending region (20) is provided with an insulating layer, with the insulating layer being directly formed in the tab bending region (20) by means of an evaporation method.
(FR) L'invention concerne un collecteur de courant et son procédé de préparation, une pièce polaire et son procédé de préparation, et une batterie au lithium. Le collecteur de courant comprend un corps en forme de feuille (100), le corps en forme de feuille (100) comprenant une région de soudage de languette (10), une région de courbure de languette (20) et une région de revêtement (30) qui sont agencées de manière séquentielle. Au moins une surface de la région de courbure de languette (20) est pourvue d'une couche isolante, la couche isolante étant directement formée dans la région de courbure de languette (20) au moyen d'un procédé d'évaporation.
(ZH) 一种集流体及其制备工艺、极片及其制备工艺及锂电池。其中，集流体包括片状本体(100)，片状本体(100)具有依次设置的极耳焊接区(10)、极耳弯折区(20)以及涂覆区(30)，极耳弯折区(20)的至少一个表面具有绝缘层，绝缘层通过蒸镀的方法直接形成在极耳弯折区(20)。
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