Title:
ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/031255
Kind Code:
A1
Abstract:
The present application relates to the field of batteries. Provided are an electrode assembly, a battery cell, a battery and an electric device. The battery cell comprises a first electrode plate, a second electrode plate, a separator and a protective member, wherein the first electrode plate and the second electrode plate have opposite polarities, and the first electrode plate, the separator and the second electrode plate are wound in a winding direction to form the electrode assembly; the first electrode plate has a first terminated end; and the protective member is arranged on the first electrode plate and/or the second electrode plate, and is configured to prevent the first terminated end from coming into contact with the portions of the first electrode plate and the second electrode plate that are adjacent to the first terminated end. The electrode assembly is provided with the protective member which can prevent the first terminated end from coming into contact with the portions of the first electrode plate and the second electrode plate that are adjacent to the first terminated end so as to reduce the shear force of the first terminated end on the portions, which reduces the risk of the electrode plates cracking from the portions and thus also reduce the risk of burrs and debris, which are generated at a cracking position, piercing the separator, such that the electrode assembly does not easily short-circuited, thereby improving safety of the electrode assembly.
Inventors:
CHEN JIANG (CN)
ZHOU JIANHUA (CN)
SONG JINYANG (CN)
WU KAI (CN)
ZHOU JIANHUA (CN)
SONG JINYANG (CN)
WU KAI (CN)
Application Number:
PCT/CN2022/110920
Publication Date:
February 15, 2024
Filing Date:
August 08, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/586; H01M4/13; H01M10/0587
Foreign References:
| CN216720252U | 2022-06-10 | |||
| CN209389153U | 2019-09-13 | |||
| CN112820950A | 2021-05-18 | |||
| JP2016066535A | 2016-04-28 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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