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A novel SO2-based electrolyte with a fluorinated alkyl conductive salt enhances ionic conductivity and stable lithium transport in metal-ion batteries, addressing performance issues in existing electrolytes.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2026-04-02
AI Technical Summary
Existing electrolytes for metal-ion batteries, such as LiS batteries, face challenges in achieving high ionic conductivity and stable lithium transport numbers, particularly in varying solvent-to-cation ratios, which affect battery performance.
A novel SO2-based electrolyte comprising a conductive salt of a specific compound, where X is Al or B, R1 is a fluorinated alkyl, and M+ is a metal cation, preferably Li+, dissolved in solvents like alkylene carbonates and ethers, optionally with polymers, to form a gel electrolyte, enhancing ionic conductivity and lithium transport.
The new electrolyte maintains stable lithium transport numbers across varying solvent-to-cation ratios, improving battery performance by increasing ionic conductivity and maintaining efficient lithium transport.
Smart Images
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