Title:
SECONDARY BATTERY, ELECTRIC DEVICE AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/082273
Kind Code:
A1
Abstract:
Disclosed in the present application are a secondary battery, an electric device and a preparation method. The secondary battery comprises a negative electrode plate, a negative electrode active material layer in the negative electrode plate comprises carbon-based particles, and the carbon-based particles comprise single particle carbon and secondary particle carbon, wherein Dv50 of the single particle carbon is greater than Dv50 of the secondary particle carbon; and Dv50 represents the corresponding particle size when the cumulative volume distribution percentage of a material reaches 50%.
Inventors:
TAO XIAOLIN (CN)
WANG JIANKUANG (CN)
WANG XINGHUI (CN)
WANG NING (CN)
WEI ZHITING (CN)
MU SAINAN (CN)
WANG JIANKUANG (CN)
WANG XINGHUI (CN)
WANG NING (CN)
WEI ZHITING (CN)
MU SAINAN (CN)
Application Number:
PCT/CN2022/126730
Publication Date:
April 25, 2024
Filing Date:
October 21, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/133; H01M4/1393; H01M4/36
Foreign References:
| CN111370654A | 2020-07-03 | |||
| CN102887509A | 2013-01-23 | |||
| CN113023725A | 2021-06-25 | |||
| CN111788721A | 2020-10-16 | |||
| CN113213470A | 2021-08-06 | |||
| CN114464774A | 2022-05-10 | |||
| CN113424348A | 2021-09-21 | |||
| JP2021158043A | 2021-10-07 |
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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