Title:
BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/083167
Kind Code:
A1
Abstract:
Provided is a battery with fast charging performance and high safety performance. By optimizing the overhang of a separator and the content of a carboxylic ester solvent in an electrolyte solution, the shrinkage rate of the separator in a high-temperature environment is reduced. Moreover, by adding the compound of formula 1 to the electrolyte solution, not only can a dense and stable interfacial film be formed at a negative electrode, but heat can also be absorbed when the internal temperature of the battery is high, thereby reducing the temperature of the system and the risk of thermal runaway, such that both the fast charging performance and the safety performance of the battery can be improved.
Inventors:
LI YUJU (CN)
ZHU HUI (CN)
ZHU HUI (CN)
Application Number:
PCT/CN2023/125290
Publication Date:
April 25, 2024
Filing Date:
October 18, 2023
Export Citation:
Assignee:
ZHUHAI COSMX POWER BATTERY CO LTD (CN)
International Classes:
H01M10/0569; H01M10/0525; H01M50/463
Domestic Patent References:
| WO2021189465A1 | 2021-09-30 |
Foreign References:
| CN115911567A | 2023-04-04 | |||
| CN111786022A | 2020-10-16 | |||
| CN114530632A | 2022-05-24 | |||
| CN214956956U | 2021-11-30 | |||
| CN102368565A | 2012-03-07 | |||
| CN108461693A | 2018-08-28 | |||
| KR20160110090A | 2016-09-21 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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