Title:
ELECTROLYTE SOLUTION, SECONDARY BATTERY COMPRISING SAME, AND PREPARATION METHOD FOR SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/045379
Kind Code:
A1
Abstract:
The present application provides an electrolyte solution, a secondary battery, a battery pack, and electrical equipment. The electrolyte solution comprises an electrolyte salt having a molar concentration greater than or equal to 1.4 mol/L and an additive containing MSO3F (fluorosulfonate), wherein M is a metal ion, and the metal ion is selected from one or more of Li+, Na+, K+, Rb+, and Cs+. A specific preparation method for the secondary battery comprises: preparing an electrolyte solution having an electrolyte salt concentration greater than or equal to 1.4 mol/L, and adding an additive for formation.
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Inventors:
PENG CHANG (CN)
CHEN PEIPEI (CN)
LI LIYE (CN)
ZHANG LIMEI (CN)
CHEN PEIPEI (CN)
LI LIYE (CN)
ZHANG LIMEI (CN)
Application Number:
PCT/CN2022/095497
Publication Date:
March 30, 2023
Filing Date:
May 27, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0567; H01M10/0525; H01M10/0568; H01M10/058
Foreign References:
| CN102754268A | 2012-10-24 | |||
| CN103492319A | 2014-01-01 | |||
| CN110137432A | 2019-08-16 | |||
| CN112234252A | 2021-01-15 | |||
| CN113348569A | 2021-09-03 | |||
| CN108598589A | 2018-09-28 | |||
| CN112928349A | 2021-06-08 | |||
| CN202111131748A | 2021-09-26 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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