| abstract |
A lithium secondary battery comprising a nonaqueousnelectrolyte obtained by dissolving an electrolytic salt in ansolvent, a negative electrode comprising a negativenelectrode material and a positive electrode comprising anpositive electrode active material, the electrolytic saltncomprising: at least one electrolytic salt A selected fromnthe group consisting of LiPF 6 , LiAsF 6 , LiSbF 6 , LiBF 4 , LiBiF 4 ,nLiAlF 4 , LiGaF 4 , LiInF 4 and LiClO 4 , and at least onenelectrolytic salt B selected from the group consisting ofnLiN(C n F 2n+1 SO 2 ) 2 wherein n is an integer of 1, 2, 3 or 4nand LiC(C m F 2m+1 SO 2 ) 3 wherein m is an integer of 1, 2, 3 orn4. The battery is superior in the aspects of storagencharacteristic in a charged condition. |