Patent ID: 6221533
Filing Date: 2001-04-24
Classification: H01M,Y02E

Abstract:
A nonaqueous electrolyte battery comprising a positive electrode, a negative electrode containing lithium or a material capable of occluding and discharging lithium, and a nonaqueous electrolyte including a solvent containing dioxolane or a substituted dioxolane in an amount of at least 10 wt %, wherein said nonaqueous electrolyte contains an electrolyte solute represented by formula (1)LiN(C.sub.m F.sub.2m+1 SO.sub.2)(C.sub.n F.sub.2n+1 SO.sub.2) (1)where m is a natural number of 1 or greater, and n is a natural number of 2 or greater,wherein said nonaqueous electrolyte further contains a nitrogen-containing compound other than said electrolyte solute, said nitrogen-containing compound being a cyclic nitrogen-containing compound.