3GAO Li jun, DOUGALRA, LIU Sheng yi. Power enhance- ment of nactively controlled battery ultra capacitor hybrid [J]. IEEE Trans on Power Electronics,2005,20( 1 ):236 - 243.
4YOSHID A A,IMOTO K,YODED A H,et al. An electric double layer capacitor with high capacitance and low re-sistance [ J 1. IEEE Trans on Components Hybrids and Manufacturing Technology, 1992 ( 15) : 133 - 138.