ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Title:

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2024/031859

Kind Code:

A1

Abstract:

The present application relates to an electrode assembly (232), a battery cell (20), a battery (100) and an electric device. The electrode assembly (232) comprises a positive electrode sheet (232a) and a negative electrode sheet (232b), which are alternately arranged. The side surfaces of at least one group of adjacent positive electrode sheets (232a) and negative electrode sheets (232b) that face each other are provided with engagement portions (P). The engagement portion (P) located on the positive electrode sheet (232a) and the engagement portion (P) located on the corresponding negative electrode sheet (232b) are configured to be capable of engaging with each other, so as to limit the degrees of freedom of adjacent positive electrode sheets (232a) and negative electrode sheets (232b). The engagement portion (P) located on the positive electrode sheet (232a) and the engagement portion (P) located on the negative electrode sheet (232b) are configured to extend in a preset direction, wherein the preset direction satisfies either one of the following conditions: the preset direction being parallel to the direction of height (H) of the electrode assembly (232), and the preset direction being set at an angle relative to the direction of height (H) of the electrode assembly (232) and not being perpendicular to the direction of height (H) of the electrode assembly (232).

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WO/2020/071056	PASTE COMPOSITION, ELECTRODE MATERIAL FOR SECONDARY BATTERIES, ELECTRODE FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
WO/2012/153469	ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, METHOD FOR PRODUCING SAME AND LITHIUM ION SECONDARY BATTERY USING ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES
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Inventors:

ZHONG QINENG (CN)
SUN JIANTONG (CN)
LI LING (CN)
SONG SHUTAO (CN)
ZHANG XIAOXI (CN)

Application Number:

PCT/CN2022/131970

Publication Date:

February 15, 2024

Filing Date:

November 15, 2022

Export Citation:

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Assignee:

JIANGSU CONTEMPORARY AMPEREX TECH LTD (CN)
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)

International Classes:

H01M4/13; H01M10/052; H01M10/054

Foreign References:

CN115000346A	2022-09-02
JP2012243567A	2012-12-10
CN110165285A	2019-08-23
CN101286574A	2008-10-15
CN109705748A	2019-05-03
CN208336419U	2019-01-04

Attorney, Agent or Firm:

ACIP LAW OFFICES (CN)

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