Sulfide-based solid electrolyte, method for preparing the same, and all-solid-state battery comprising the same
By using a sulfide-based solid electrolyte with the chemical formula Li7-x-y+naP1-aMaS6-xy-zXzClxBry, the problems of low ionic conductivity and instability of sulfide-based solid electrolytes are solved through cation and anion doping, achieving high ionic conductivity and atmospheric stability, and improving the performance and processability of all-solid-state batteries.
CN122893185APending Publication Date: 2026-10-09LG CHEM LTD
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Patent Information
- Application Number
- CN202580019547.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-04-09
- Filing Date
- 2025-04-08
- Publication Date
- 2026-10-09
AI Technical Summary
Technical Problem
Existing sulfide-based solid electrolytes have low ionic conductivity and are unstable, easily reacting with oxygen, carbon dioxide, and moisture in the air, affecting the performance and processability of all-solid-state batteries.
Method used
A sulfide-based solid electrolyte with the chemical formula Li7-x-y+naP1-aMaS6-xy-zXzClxBry is prepared by cation and anion doping to improve ionic conductivity and atmospheric stability. The preparation method includes pulverization and heat treatment of the mixture.
Benefits of technology
It achieves high ion conductivity and atmospheric stability, suppresses side reactions, and improves the operating performance and manufacturability of all-solid-state batteries.
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Abstract
The present invention relates to a sulfide-based solid electrolyte, a method for manufacturing the same, and an all-solid-state battery comprising the same.
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