Title:
WOUND ELECTRODE ASSEMBLY, ELECTROCHEMICAL DEVICE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/120651
Kind Code:
A1
Abstract:
A wound electrode assembly, an electrochemical device, and an electronic device. The wound electrode assembly comprises an electrode plate and an isolation layer (30) on at least one surface of the electrode plate; the adhesion between the isolation layer (30) and the surface of the electrode plate in a first area of the wound electrode assembly is greater than the adhesion in second areas of the wound electrode assembly, such that the adhesion between the isolation layer (30) and the surface of the electrode plate in the first area of the wound electrode assembly is greater; when the electrode plate in the second area is stressed, a minute slip can be generated between layers to release the stress, such that the occurrence of stress concentration caused by consistent adhesion between existing separators and the surfaces of electrode plates can be reduced, deformation of the electrochemical device caused by stress concentration can be reduced, and thus the safety of the electrochemical device is improved.
Inventors:
WEI HONGMEI (CN)
ZHANG YIBO (CN)
WENG QIUYAN (CN)
ZHANG YIBO (CN)
WENG QIUYAN (CN)
Application Number:
PCT/CN2020/134992
Publication Date:
June 16, 2022
Filing Date:
December 09, 2020
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M10/0587
Foreign References:
| JP2002093404A | 2002-03-29 | |||
| CN204885328U | 2015-12-16 | |||
| CN106469826A | 2017-03-01 | |||
| CN208256822U | 2018-12-18 | |||
| CN2872606Y | 2007-02-21 | |||
| CN106560946A | 2017-04-12 |
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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