Carbon material with its excellent performance and become one of the hot spots of the materials in the field of research, materials scientists at home and abroad around Controllable Preparation of new nano-carbon materials in supercapacitor chemical energy storage devices, to carry out a large number of research work. In support of the Chinese Academy of Sciences "Hundred and the National Natural Science Foundation of China, Lanzhou Institute of Chemical Physics of Solid Lubrication, State Key Laboratory of Yanxing Bin researcher led the research team since 2009, around the nano-carbon material in supercapacitor a series of studies designed to develop environmentally friendly, wide operating temperature, high energy density and power density of the new super capacitor the nano carbon electrode material, and achieved good results.

More recently, the research team in graphene-based supercapacitor has made new progress. The researchers investigated ion molar concentration of the liquid electrolyte, and the influence of temperature on the performance of graphene capacitance as a result, the molar concentration of the ionic liquid 2M graphene capacitor best performance. At the same time, the study results show that graphene / ionic liquid system in the temperature range of -20 ℃ ~ 60 ℃ showed good capacitance and capacitor with less dependency on the temperature.

Previously, the research team also studied the impact of the type of organic solvent and the chain length of the alkyl chain imidazolium ionic liquid cations graphene capacitance performance; addition, the research team used the self-assembly and composite technology to prepare graphene films shape memory of electrode material, and these Welding Material exhibit excellent capacitance performance.

At the same time, the research team also conducted applied research in supercapacitors based on carbon nanotubes, mesoporous carbon and carbon nanofiber Welding Electrode Material