Invention Application
- Patent Title: ELECTROCHEMICAL APPARATUS, PREPARATION METHOD THEREFOR, AND ELECTRONIC APPARATUS
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Application No.: US17560628Application Date: 2021-12-23
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Publication No.: US20220200050A1Publication Date: 2022-06-23
- Inventor: Chenxi Jiang , Yafei Zhang , Hongming Yu , Xinghua Tao
- Applicant: Ningde Amperex Technology Limited
- Applicant Address: CN Ningde City
- Assignee: Ningde Amperex Technology Limited
- Current Assignee: Ningde Amperex Technology Limited
- Current Assignee Address: CN Ningde City
- Priority: CN202011556239.9 20201223
- Main IPC: H01M10/0567
- IPC: H01M10/0567 ; H01M10/0525
Abstract:
An electrochemical apparatus includes a positive electrode sheet including a positive electrode active material layer; a negative electrode sheet including a negative electrode active material layer; and a separator disposed between the positive electrode sheet and the negative electrode sheet. A mass ratio of fluorine to nitrogen on a surface layer of the positive electrode active material layer is A, a mass ratio of fluorine to nitrogen on a surface layer of the negative electrode active material layer is B, 3≤A≤50, and 30≤B≤300.
Information query
