Title:
ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND POWER-CONSUMING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/088824
Kind Code:
A1
Abstract:
Disclosed are an electrode assembly, a battery cell, a battery and a power-consuming apparatus. The electrode assembly in the embodiments of the present application comprises a positive electrode piece and a negative electrode piece, wherein the positive electrode piece comprises a positive electrode current collector, and positive electrode active material layers that are disposed on two surfaces of the positive electrode current collector; and the negative electrode piece comprises a negative electrode current collector, and negative electrode active material layers that are disposed on two surfaces of the negative electrode current collector. The positive electrode piece and the negative electrode piece form a bending area after being wound, the positive electrode piece comprises a first positive electrode bending layer that is located in the bending area, the negative electrode piece comprises a first negative electrode bending layer that is located in the bending area, and the first positive electrode bending layer is located at an outer side of the first negative electrode bending layer and is disposed adjacent to the first negative electrode bending layer. The first negative electrode bending layer is provided with a hole that penetrates the negative electrode current collector.
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Inventors:
LIN MINGFENG (CN)
SHI SONGJUN (CN)
ZHANG HAIMING (CN)
YU HONGGANG (CN)
LAI YOULEI (CN)
SHI SONGJUN (CN)
ZHANG HAIMING (CN)
YU HONGGANG (CN)
LAI YOULEI (CN)
Application Number:
PCT/CN2021/110976
Publication Date:
May 05, 2022
Filing Date:
August 05, 2021
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0587
Domestic Patent References:
| WO2019017257A1 | 2019-01-24 |
Foreign References:
| CN213692108U | 2021-07-13 | |||
| CN208127332U | 2018-11-20 | |||
| CN101253588A | 2008-08-27 | |||
| CN103022408A | 2013-04-03 | |||
| CN110970653A | 2020-04-07 | |||
| CN103563158A | 2014-02-05 | |||
| US20050058888A1 | 2005-03-17 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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