Patent ID: 7867294
Filing Date: 2011-01-11
Classification: H01M,Y02E,Y02P,Y02T,Y10T

Abstract:
1. A method of making a secondary battery comprising: providing an electrolytic solution comprising i. a non-aqueous electrolytic solvent and ii. a lithium containing salt; contacting the electrolytic solution with a triazine compound selected from the group consisting of 2,6-bis-(2,4-dimethylphenyl)-4-(2-hydroxy-4-octyloxyphenyl)-s-triazine; 2,6-bis(2,4-dimethylphenyl)-4-(2,4-dihydroxyphenyl)-s-triazine; 2,4-bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine; 2,4-bis(2-hydroxy(2-hydroxyethoxy)phenyl)-6-(4-chlorophenyl)-s-triazine; 2,4-bis(2-hydroxy-4-(2-hydroxyethoxy)phenyl)-phenyl-s-triazine; 2,4-bis(2-hydroxy-4-(2-hydroxyethoxy)-phenyl)-6-(2,4-dimethylphenyl)-s-triazine; 2,4-bis(2-hydroxy(2-hydroxyethoxy)phenyl)-6-(4-bromophenyl)-s-triazine; 2,4-bis(2-hydroxy-4-(2-acetoryethoxy)phenyl)-6-(4-chlorophenyl)-s-triazine; 2,4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-1-s-triazine; 2,4,6-trimethoxy-1,3,5-triazine; 2,4,6-triphenyoxy-1,3,5-triazine; 2,4,6-triethoxy-1,3,5-triazine; 2,4,6-tripropoxy-1,3,5-triazine; 2,4,6-tributoxy-1,3,5-triazine, and combinations thereof; removing substantially all of the triazine compound from the electrolytic solution; laminating and winding a cathode, a first porous separator, an anode, and a second porous separator; placing the wound laminated electrodes and separators in a battery case; infusing the electrolytic solution into the battery case; and, sealing the battery case containing the electrodes, electrolytic solution and separators.