Patent ID: 6670078
Filing Date: 2003-12-30
Classification: H01M,Y02E

Abstract:
A nonaqueous electrolytic solution cell comprising a negative electrode containing lithium as an active material, a positive electrode, a nonaqueous electrolytic solution consisting of a solute and an organic solvent, a separator, and an outer can;wherein the nonaqueous electrolytic solution contains at least one organic solvent represented by the formula (1): R1â€”Aâ€”R2â€ƒâ€ƒ(1) in which, R1 and R2 independently represent an alkyl group which may be substituted with an aryl group or halogen atom; an aryl group which may be substituted with an alkyl group or halogen atom; or may be taken together to form, together with â€”Aâ€”, a cyclic structure which may contain an unsaturated bond, where â€œAâ€  is represented by a formula selected from the group consisting of: wherein a current collector for the positive electrode is made of valve metal or an alloy thereof and wherein a portion of the outer can contacting the electrolytic solution at the side of the positive electrode is made of valve metal or an alloy thereof.