Patent ID: 7115340
Filing Date: 2006-10-03
Classification: H01M,Y02E,Y10T

Abstract:
1. A non-aqueous electrolyte secondary battery comprising a non-aqueous electrolyte which contains at least one of vinylene carbonate derivatives represented by Chemical Formula 1 at a concentration of 0.25 to 1 wt % and at least one of cyclic sulfates represented by Chemical Formula 2 at a concentration of 0.25 to 2 wt %, wherein said concentrations are expressed with ratios to a total amount of said non-aqueous electrolyte, wherein each of R1 to R8 is any one of a hydrogen atom, alkyl groups, alkoxy groups, halogens, haloalkyl groups, and aryl groups and n is 0 or 1, wherein Chemical Formula 1 is: and Chemical Formula 2 is: