Patent ID: 7255965

Claim:
A secondary battery comprising an anode, a cathode, and an electrolytic solution, wherein the electrolytic solution comprises a non-aqueous solvent, a solute, and a salt additive, the salt additive comprising lithium bis(oxalato)borate provided that the concentration of lithium bis(oxalato)borate in the solution does not exceed 0.15 M, wherein the anode comprises a first material selected from the group consisting of crystalline carbon, lithium metal, LiMnO 2 , LiAl, LiZn, Li 3 Bi, Li 3 Cd, Li 3 Sb, Li 4 Si, Li 4.4 Pb, Li 4.4 Sn, LiC 6 , Li 3 FeN 2 , Li 2.6 Co 0.4 N, Li 2.6 Cu 0.4 N, Li 4 Ti 5 O 12 , and combinations thereof, and a second material selected from the group consisting of SnO, SnO 2 , GeO, GeO 2 , In 2 O, In 2 O 3 , PbO, PbO 2 , Pb 2 O 3 , Pb 3 O 4 , Ag 2 O, AgO, Ag 2 O 3 , Sb 2 O 3 , Sb 2 O 4 , Sb 2 O 5 , SiO, ZnO, CoO, NiO, FeO, and combinations thereof.