Lithium-ion capacitors have important application potential in low temperature and high power energy storage scenarios. Recently, Ma Yanwei's team, a researcher at the Institute of Electrical Engineering of the Chinese Academy of Sciences, proposed a “solvent-based decontamination electrolyte” design strategy. The team used gamma-pentolactone, which has medium polarity, low melting point and moderate coordination capacity, as the main solvent, lithium difluorooxalate borate as a functional lithium salt, and introduced weakly coordinated ethyl acetate as a solvent-based regulatory component to reduce the encapsulation and shielding effect of the solvent on lithium ions, promote the participation of anions in the construction of local solvent-based structures, and form a weakly bound, solvent-based decontamination environment involving anions.

Lithium-ion capacitors have important application potential in low temperature and high power energy storage scenarios. Recently, Ma Yanwei's team, a researcher at the Institute of Electrical Engineering of the Chinese Academy of Sciences, proposed a “solvent-based decontamination electrolyte” design strategy. The team used gamma-pentolactone, which has medium polarity, low melting point and moderate coordination capacity, as the main solvent, lithium difluorooxalate borate as a functional lithium salt, and introduced weakly coordinated ethyl acetate as a solvent-based regulatory component to reduce the encapsulation and shielding effect of the solvent on lithium ions, promote the participation of anions in the construction of local solvent-based structures, and form a weakly bound, solvent-based decontamination environment involving anions.