Title:
ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/123427
Kind Code:
A1
Abstract:
The present application relates to an electrochemical device and an electronic device comprising same. The electrochemical device of the present application comprises: a negative electrode; a positive electrode, wherein same comprises a current collector and a positive electrode active material layer, which is located on the current collector, the positive electrode active material layer comprises a positive electrode active material, and the active specific surface area of the positive electrode is Xm2/g; and an electrolyte solution, wherein same comprises an additive A, the additive A comprises LiPO2F2, the weight percentage of the LiPO2F2 is Y% on the basis of the weight of the electrolyte solution, and 0.005≤X/Y≤2. The electrochemical device of the present application has improved cycle performance, storage performance and overcharge performance, and reduced impedance.
Inventors:
XU CHUNRUI (CN)
XU YANYAN (CN)
TANG CHAO (CN)
XU YANYAN (CN)
TANG CHAO (CN)
Application Number:
PCT/CN2021/143871
Publication Date:
July 06, 2023
Filing Date:
December 31, 2021
Export Citation:
Assignee:
DONGGUAN AMPEREX TECH LTD (CN)
International Classes:
H01M10/0567
Foreign References:
| CN111640977A | 2020-09-08 | |||
| US20190312306A1 | 2019-10-10 | |||
| JP2014072025A | 2014-04-21 | |||
| CN107017429A | 2017-08-04 | |||
| CN208460908U | 2019-02-01 | |||
| CN112331833A | 2021-02-05 |
Attorney, Agent or Firm:
LEE AND LI - LEAVEN IPR AGENCY LTD. (CN)
Download PDF: