Title:
ELECTROLYTE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/004821
Kind Code:
A1
Abstract:
Provided are an electrolyte, a secondary battery, a battery module, a battery pack, and an electric device. The electrolyte comprises an organic solvent and an additive, wherein the organic solvent comprises a first organic solvent represented by formula (1), and the additive comprises a first additive, which is selected from one or more compounds represented by formula (2A) and formula (2B). In the formula (1), R1 and R2 are each independently one of C1-C3 alkyl and C1-C3 haloalkyl; in the formula (2A), R21, R22, R23 and R24 are each independently one of a single bond and methylene; and in the formula (2B), R31, R32, R33 and R34 are each independently one of a single bond and methylene, and R4 is one of a single bond, -O-, C1-C3 alkylene, C1-C3 haloalkylene and C1-C3 oxa-alkylene. The secondary battery has good quick charging performance on the premise of having long cycling life and storage life. <
Inventors:
ZHANG LIMEI (CN)
CHEN PEIPEI (CN)
LI LIYE (CN)
CHEN PEIPEI (CN)
LI LIYE (CN)
Application Number:
PCT/CN2021/109905
Publication Date:
February 02, 2023
Filing Date:
July 30, 2021
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0567; H01M10/0569
Domestic Patent References:
| WO2018097523A1 | 2018-05-31 |
Foreign References:
| CN110931869A | 2020-03-27 | |||
| CN109950621A | 2019-06-28 | |||
| US20190067741A1 | 2019-02-28 | |||
| CN111293357A | 2020-06-16 | |||
| KR20180119842A | 2018-11-05 | |||
| CN107086324A | 2017-08-22 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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