Title:
NEGATIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, ELECTROCHEMICAL DEVICE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/092500
Kind Code:
A1
Abstract:
The present application relates to a negative electrode sheet and a preparation method therefor, an electrochemical device, and an electronic device. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer comprises a first active material layer and a second active material layer, wherein the first active material layer is disposed on the surface of the negative electrode current collector, and the first active material layer comprises a plurality of first through holes which penetrate through the first active material layer along the thickness direction of the negative electrode current collector and are disposed at intervals; the second active material layer is at least disposed on the surface of the negative electrode current collector; the first active material layer is disposed between the second active material layer and the negative electrode current collector; the first active material layer comprises silicon-based particles; and the second active material layer comprises carbon-based particles.
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Inventors:
LEI TINGLING (CN)
Application Number:
PCT/CN2022/128962
Publication Date:
May 10, 2024
Filing Date:
November 01, 2022
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M4/1393; H01M4/1395; H01M10/0525
Foreign References:
| CN109088050A | 2018-12-25 | |||
| CN102820451A | 2012-12-12 | |||
| CN108682785A | 2018-10-19 | |||
| CN109494374A | 2019-03-19 | |||
| JP2010212092A | 2010-09-24 | |||
| JP2011029075A | 2011-02-10 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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