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Title:
SECONDARY BATTERY, AND BATTERY MODULE, BATTERY PACK, AND DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/165780
Kind Code:
A1
Abstract:
The present application discloses a secondary battery, and a battery module, battery pack, and device comprising same. The secondary battery comprises a positive electrode plate; the positive electrode plate comprises: a positive electrode current collector, a positive electrode active material layer, and a coating provided between the positive electrode current collector and the positive electrode active material layer; and the coating comprises a conductive agent and a specific copolymer, such that the secondary battery can achieve both high overcharge safety and good cycle performance.

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Inventors:
TANG HUANG (CN)
ZHANG MING (CN)
DONG HAO (CN)
WU QIFAN (CN)
LIN DE (CN)
Application Number:
PCT/CN2021/075679
Publication Date:
August 11, 2022
Filing Date:
February 06, 2021
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/66
Foreign References:
CN106558676A2017-04-05
CN110400933A2019-11-01
CN109119637A2019-01-01
CN110265665A2019-09-20
CN106374112A2017-02-01
JP2016219197A2016-12-22
Other References:
See also references of EP 4071865A4
Download PDF:
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