Title:
ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/077476
Kind Code:
A1
Abstract:
The present application provides an electrode sheet and a preparation method therefor, a secondary battery and a preparation method therefor, a battery module, a battery pack, and an electric device. An electrode sheet (7) comprises a current collector (71), a first active layer (72), and a second active layer (73); the first active layer (72) is located on at least one surface of the current collector (71), the second active layer (73) is located on the first active layer (72), and the electronic conductivity of the first active layer (72) is less than that of the second active layer (73).
Inventors:
TIAN YAXI (CN)
TANG DAICHUN (CN)
TANG DAICHUN (CN)
Application Number:
PCT/CN2022/124600
Publication Date:
April 18, 2024
Filing Date:
October 11, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/13; H01M4/62
Foreign References:
| CN114464770A | 2022-05-10 | |||
| CN112490408A | 2021-03-12 | |||
| CN108539252A | 2018-09-14 | |||
| CN105304859A | 2016-02-03 | |||
| CN115036458A | 2022-09-09 |
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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