电解液添加剂、电解液、电池、用电装置
By using tetraethylsilane and lithium tetrafluorooxalate phosphate as electrolyte additives in lithium-ion batteries, the problems of uneven film formation and poor stability of electrolyte additives were solved, thereby improving the high-temperature cycle performance and rate performance of the battery.
CN117594875BActive Publication Date: 2026-07-17GUANGZHOU TINCI MATERIALS TECH +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU TINCI MATERIALS TECH
- Filing Date
- 2023-10-16
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing electrolyte additives in lithium-ion batteries suffer from uneven film thickness and poor structural stability, leading to deterioration in battery performance under high-temperature conditions.
Method used
Tetraethylsilane and lithium tetrafluorooxalate phosphate are used as electrolyte additives to synergistically form uniform and robust CEI and SEI films on the surfaces of the positive and negative electrode active materials, thereby improving the high-temperature cycle performance and rate performance of the battery.
Benefits of technology
By forming stable CEI and SEI films, the high-temperature cycle performance and rate performance of the battery are improved, side reactions are reduced, and the migration rate of lithium ions is increased.
✦ Generated by Eureka AI based on patent content.
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Abstract
本申请公开了电解液添加剂、电解液、电池、用电装置，电解液添加剂包括第一添加剂和第一锂盐，所述第一添加剂包括四乙基硅烷，所述第一锂盐包括四氟草酸磷酸锂。由此，含有该电解液添加剂的电解液可以改善电池的倍率性能和高温性能。
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