Title:
ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING ELECTROCHEMICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/092274
Kind Code:
A1
Abstract:
The present application provides an electrochemical device and an electronic device comprising the electrochemical device. The coating weight W1f of a first negative electrode active material layer and the coating weight W2f of a second negative electrode active material layer in the electrochemical device satisfy the following relation: 30 mg/1540.25 mm2≤W2f-W1f≤100 mg/1540.25 mm2. By adjusting the values of W2f-W1f in the above range, the energy density of the electrochemical device can be improved, and the expansion performance of the electrochemical device is improved while the fast charging performance is realized.
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Inventors:
LI CHENCHEN (CN)
HE PING (CN)
LIU DAOLIN (CN)
CHEN JUN (CN)
HE PING (CN)
LIU DAOLIN (CN)
CHEN JUN (CN)
Application Number:
PCT/CN2021/132408
Publication Date:
June 01, 2023
Filing Date:
November 23, 2021
Export Citation:
Assignee:
DONGGUAN AMPEREX TECH LTD (CN)
International Classes:
H01M4/13; H01M10/0525
Foreign References:
| JP2006012703A | 2006-01-12 | |||
| JP2011082099A | 2011-04-21 | |||
| CN112234247A | 2021-01-15 | |||
| CN108110221A | 2018-06-01 | |||
| CN108630995A | 2018-10-09 |
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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