一种电解液添加剂及含有该添加剂的电解液和锂金属电池
By using trifluoromethoxyphenylboronic acid as an electrolyte additive in lithium metal batteries, a stable electrode-electrolyte interface film is formed, which solves the cycle stability and safety problems of lithium metal batteries under high voltage, realizes the structural stability of the cathode material and suppresses lithium dendrites, and enhances the high energy density application potential of the battery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG UNIV
- Filing Date
- 2023-03-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electrolyte additives are insufficient to improve the cycle stability of nickel-rich NCM cathode materials and suppress lithium dendrite growth under high or ultra-high voltage conditions, leading to cycle life and safety issues in lithium metal batteries at high energy densities.
Trifluoromethoxyphenylboronic acid is used as an electrolyte additive to form a stable electrode-electrolyte interface film on the electrode surface, which inhibits the collapse of the positive electrode material structure and the growth of lithium dendrites, thereby improving the cycle stability of lithium metal batteries under ultra-high voltage.
It effectively suppressed the structural collapse of the cathode material and the growth of lithium dendrites, and improved the cycle stability and safety performance of lithium metal batteries under ultra-high pressure.
Smart Images
Figure CN116231081B_ABST