Fluorinated sulfone ether compound, preparation method and sodium ion battery electrolyte
By preparing fluorinated sulfone ether compounds and applying them to sodium-ion battery electrolytes, the problems of viscosity increase at low temperatures and decomposition at high voltages of traditional solvents have been solved, achieving high voltage stability, wide temperature range applicability, and interface stability of the battery, thereby improving battery safety and lifespan.
CN122212985APending Publication Date: 2026-06-16BEIJING ELECTRIC VEHICLE
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING ELECTRIC VEHICLE
- Filing Date
- 2026-03-23
- Publication Date
- 2026-06-16
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Figure CN122212985A_ABST
Abstract
The application belongs to the technical field of electrolyte solvent synthesis and application, and discloses a fluorosulfone ether compound, a preparation method thereof and a sodium ion battery electrolyte. The structural general formula of the fluorosulfone ether compound is R'-O-L-SO2-R; wherein R' and R are respectively selected from C1-C6 alkyl; and L is a fluorinated alkylene group with a carbon atom number greater than or equal to 2. The fluorosulfone ether compound of the application can be applied to the sodium ion battery electrolyte, so that the high-voltage stability, low-temperature stability and interface stability of the electrolyte can be significantly improved.
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