Invention Grant
- Patent Title: Negative electrode and electrochemical apparatus containing same, and electronic apparatus
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Application No.: US17707129Application Date: 2022-03-29
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Publication No.: US12294082B2Publication Date: 2025-05-06
- Inventor: Ting Yi , Hang Cui , Yuansen Xie
- Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
- Applicant Address: CN Fujian
- Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
- Current Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
- Current Assignee Address: CN Fujian
- Agency: Maier & Maier, PLLC
- Priority: CN201911267132.X 20191211
- Main IPC: H01M4/38
- IPC: H01M4/38 ; H01M4/583 ; H01M4/62 ; H01M10/0525 ; H01M4/02

Abstract:
A negative electrode includes a negative current collector, a first negative active material layer and a second negative active material layer. The first negative active material layer is arranged on one side of a first portion of the negative current collector, and the second negative active material layers are arranged on two sides of a second portion, different from the first portion, of the negative current collector. A ratio of a weight per unit area of the first negative active material layer to a weight per unit area of the second negative active material layer on the negative current collector is 0.47 to 0.52, and a ratio of a compacted density of the first negative active material layer to a compacted density of the second negative active material layer is 0.9 to 1.1.
Public/Granted literature
- US20220223851A1 NEGATIVE ELECTRODE AND ELECTROCHEMICAL APPARATUS CONTAINING SAME, AND ELECTRONIC APPARATUS Public/Granted day:2022-07-14
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