Title:
ELECTROLYTE SOLUTION OF LITHIUM-ION BATTERY AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/083011
Kind Code:
A1
Abstract:
An electrolyte solution of a lithium-ion battery and a lithium secondary battery. The electrolyte solution of a lithium-ion battery comprises an organic solvent, a lithium salt and an additive, wherein the organic solvent comprises fluorinated ethylene carbonate accounting for at least 5% of the total mass of the electrolyte solution, the additive comprises an additive A containing one or more compounds which have three or more carbon-carbon double bonds, and the electrolyte solution does not comprise a compound containing a sulfonyl group. The electrolyte solution of a lithium-ion battery is not only more environmentally friendly, but can also improve the swelling of the battery during the formation and high-temperature storage thereof, the discharge capacity of the battery, and the self-discharge performance of the battery under a high voltage.
Inventors:
CHEN LI (CN)
WANG TINGTING (CN)
HUI YINYIN (CN)
GAN CHAOLUN (CN)
WANG TINGTING (CN)
HUI YINYIN (CN)
GAN CHAOLUN (CN)
Application Number:
PCT/CN2023/123995
Publication Date:
April 25, 2024
Filing Date:
October 11, 2023
Export Citation:
Assignee:
ZHANGJIAGANG GUOTAI HUARONG NEW CHEMICAL MATERIALS CO LTD (CN)
International Classes:
H01M10/0567; H01M10/052; H01M10/0568; H01M10/0569
Foreign References:
| CN111684642A | 2020-09-18 | |||
| CN103825047A | 2014-05-28 | |||
| CN107251310A | 2017-10-13 | |||
| CN109937508A | 2019-06-25 | |||
| US20150244029A1 | 2015-08-27 | |||
| JP2016054142A | 2016-04-14 | |||
| CN101536242A | 2009-09-16 | |||
| CN116936913A | 2023-10-24 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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