Title:
ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/035541
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application is an electrode assembly and a manufacturing method and manufacturing system therefor, a battery cell, a battery and an electric apparatus. The electrode assembly provided in the embodiments of the present application comprises a first pole piece, a second pole piece and a first isolating piece, wherein the polarity of the first pole piece is opposite to that of the second pole piece; the first isolating piece is used for isolating the first pole piece from the second pole piece; and the first pole piece, the second pole piece and the first isolating piece are wound in a winding direction. The electrode assembly is provided with a bent area, the bent area is provided with a second isolating piece, and the second isolating piece and the first isolating piece are stacked and used for isolating the adjacent first pole piece and second pole piece; and at least some of the ions escaping from the first pole piece can pass through the first isolating piece and the second isolating piece and are embedded into the second pole piece. The first isolating piece and the second isolating piece jointly isolate the first pole piece and the second pole piece in the bent area, so that the problem of a short circuit of the electrode assembly caused by damage to the isolating pieces is reduced.
Inventors:
GUO SUOGANG (CN)
FU CHENGHUA (CN)
YE YONGHUANG (CN)
ZHANG CHENCHEN (CN)
CHANG WEN (CN)
ZHU CHANG (CN)
FU CHENGHUA (CN)
YE YONGHUANG (CN)
ZHANG CHENCHEN (CN)
CHANG WEN (CN)
ZHU CHANG (CN)
Application Number:
PCT/CN2022/073265
Publication Date:
March 16, 2023
Filing Date:
January 21, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0587; H01M10/052
Foreign References:
| CN214706007U | 2021-11-12 | |||
| CN1244952A | 2000-02-16 | |||
| JP2011008929A | 2011-01-13 | |||
| CN110249473A | 2019-09-17 | |||
| CN110364769A | 2019-10-22 | |||
| CN205992575U | 2017-03-01 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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