中文摘要：

硬碳（hardcarbon）嵌锂实验及循环伏安测试表明，该硬碳表面形成SEI（solidelectrolyteinterface）膜的电位区间为1．O～O．5V，并且SEI膜主要在首次阴极化过程中形成；嵌脱锂反应电位区间为O～0．5V。硬碳负极与活性碳（activatedcarbon）正极组装成非对称超级电容器，电化学测试表明，当电流密度由25mA／g增大到100mA／g时，其比容量保持率为87．3％；它的质量能量密度分别为8．52和7．44Wh／kg。

英文摘要：

Cyclic voltammetry （CV） analysis on hard carbon （HC） anode illustrated that the SEI film formed mostly in the first catlodic process,and the potential of solid electrolyte interface （SEI） film forma tion for Li＋ intercalation was in the ranged 1.0-0.5 V ,and the deintercalation potential range is between 0-0.5 V. The asymmetric super capacitors using HC as anode and activated carbon （AC） as cathode were studied. Electrochemical test results indicated that when the current density increased from 25 to 100 mA/ g,the discharge specific capacitances retained 87.3% and the specific energy densities were 8.52 and 7.44 Wh/kg, respectively.