Invention Grant
- Patent Title: Negative electrode plate, secondary battery, and apparatus containing the secondary battery
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Application No.: US18531739Application Date: 2023-12-07
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Publication No.: US12294081B2Publication Date: 2025-05-06
- Inventor: Jing Li , Yang Zhang , Qingrui Xue , Wei Li
- Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
- Applicant Address: CN Hong Kong
- Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
- Current Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
- Current Assignee Address: CN Hong Kong
- Agency: East IP P.C.
- Priority: CN202010201599.0 20200320
- Main IPC: H01M4/36
- IPC: H01M4/36 ; H01M4/02 ; H01M4/587 ; H01M10/0525

Abstract:
The present application discloses a negative electrode plate including a negative electrode active material layer including a first active material layer; wherein in a first cross section in a thickness direction of the negative electrode plate, the first active material has a particle size a in a direction parallel to the metal conductive layer, the first active material has a particle size b in the thickness direction, satisfying 0.8≤a/b≤20; in a second cross section in the thickness direction, the first active material has a particle size c in the direction parallel to the metal conductive layer, the first active material has a particle size d in the thickness direction, satisfying 0.8≤c/d≤20; and the first cross section is parallel to a first direction, the second cross section is parallel to a second direction, and the first direction intersects the second direction.
Public/Granted literature
- US20240250247A1 NEGATIVE ELECTRODE PLATE, SECONDARY BATTERY, AND APPARATUS CONTAINING THE SECONDARY BATTERY Public/Granted day:2024-07-25
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