Title:
BINDER COMPOSITION, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/241201
Kind Code:
A1
Abstract:
The present application provides a binder composition. The binder composition comprises a first fluoropolymer and a second fluoropolymer, wherein the first fluoropolymer comprises a polyvinylidene fluoride having a weight average molecular weight of 5 million to 9 million, and the second fluoropolymer has a weight average molecular weight of not more than 600,000. The binder composition has a good processability, can make an electrode plate have a high adhesive force at a low addition amount, and can improve the cycling performance of a battery.
Inventors:
LI CHENG (CN)
ZENG ZIPENG (CN)
LIU HUIHUI (CN)
WANG JINGMING (CN)
ZENG ZIPENG (CN)
LIU HUIHUI (CN)
WANG JINGMING (CN)
Application Number:
PCT/CN2023/088512
Publication Date:
December 21, 2023
Filing Date:
April 14, 2023
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
C09J127/14; C08F14/22; C08F114/22; C08F214/22
Domestic Patent References:
| WO2022114044A1 | 2022-06-02 |
Foreign References:
| CN111194495A | 2020-05-22 | |||
| CN104053687A | 2014-09-17 | |||
| CN103890998A | 2014-06-25 | |||
| CN109929482A | 2019-06-25 | |||
| JP2020113442A | 2020-07-27 | |||
| KR20170129452A | 2017-11-27 |
Attorney, Agent or Firm:
BEIJING HAN KUN LAW OFFICES (CN)
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