PHOSPHORUS-CONTAINING ELECTROLYTES
Patent Information
- Application Number
- DE602018080537
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2017-07-17
- Filing Date
- 2018-07-17
- Publication Date
- 2025-03-26
- Estimated Expiration
- 2038-07-17
AI Technical Summary
High energy density lithium-ion batteries for electric vehicles and consumer applications face safety concerns due to flammability under abuse or normal conditions, despite advancements in flame retardant additives and electrolyte compositions.
Development of phosphorus-based thermal runaway inhibiting (TRI) materials incorporated into electrolytes for electrical energy storage devices, comprising an aprotic organic solvent, an alkali metal salt, and a TRI compound with a phosphorus moiety, which includes sulfur, fluorine, or other additives to enhance safety and stability.
The phosphorus-based TRI materials improve the safety and stability of lithium-ion batteries by reducing the risk of thermal runaway, as evidenced by improved cycle life, wetting of electrodes, and reduced peak temperatures during abuse tests, while maintaining high ionic conductivity and performance.