Title:
ELECTRODE MATERIAL, ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/241104
Kind Code:
A1
Abstract:
The present application provides an electrode material, an electrode sheet and a preparation method therefor, and a secondary battery. The electrode material comprises an electrode active material, a conductive agent, and a binder, wherein the binder comprises a first binder and a second binder (in a mass ratio of 0-0.2:1), or the first binder and a third binder (in a mass ratio of 0.05-0.3:1); the first binder comprises one or more of polytetrafluoroethylene, polychlorotrifluoroethylene, a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, a tetrafluoroethylene-hexafluoropropylene copolymer, and an ethylene-chlorotrifluoroethylene copolymer; the second binder comprises a copolymer of two or more of acrylic acid, acrylate, acrylonitrile, and acrylamide; and the third binder comprises one or more of polyvinylidene fluoride, a vinylidene fluoride-tetrafluoroethylene-propylene terpolymer, a vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene terpolymer, and a fluorine-containing acrylate resin.
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Inventors:
WANG ZHENG (CN)
LU LEI (CN)
WANG YALONG (CN)
YU LINZHEN (CN)
HU CHANGYUAN (CN)
DENG KAIMING (CN)
LI SHISONG (CN)
DAI SHUNHAO (CN)
LU LEI (CN)
WANG YALONG (CN)
YU LINZHEN (CN)
HU CHANGYUAN (CN)
DENG KAIMING (CN)
LI SHISONG (CN)
DAI SHUNHAO (CN)
Application Number:
PCT/CN2023/079056
Publication Date:
December 21, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/62
Foreign References:
| CN113659145A | 2021-11-16 | |||
| CN109659562A | 2019-04-19 | |||
| CN108232112A | 2018-06-29 | |||
| CN109616635A | 2019-04-12 |
Attorney, Agent or Firm:
BEIJING CHENQUAN INTELLECTUAL PROPERTY LAW FIRM (CN)
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