一种双电子转移卤素液流电池电解液及其应用
By introducing bromide and chloride ions under acidic conditions to form a stable interhalogen compound, bromide dichloride, the problems of low energy density and halogen ion corrosion in flow batteries are solved. This achieves dual electron transfer, improves the energy density and stability of the battery, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
- Filing Date
- 2021-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
Flow batteries have low energy density, which is limited by the solubility of active materials and the number of electrons transferred, resulting in high costs. Halogen ions, such as elemental bromine, have problems with corrosivity, volatility, and diffusion. Furthermore, the transformation of halogen ions into elemental substances involves only one electron transfer, which limits the energy density.
By introducing bromide and chloride ions under acidic conditions, a relatively stable interhalogen compound, bromide dichloride, is formed, achieving two-electron transfer. By utilizing the characteristics of bromide and chloride ions, the energy density is increased while reducing corrosivity and volatility.
It achieves higher open-circuit voltage and energy density, reduces costs, improves coulombic efficiency and voltage efficiency, and has stable battery performance, featuring low cost and high energy density.
Smart Images
Figure CN116207315B_ABST