| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolytic solution for a secondary battery and a nonaqueous electrolytic solution secondary battery using the nonaqueous electrolytic solution in which even in the secondary battery having a crystalline carbon material high in crystallinity such as graphite as an active material, and using a negative electrode manufactured by using a polymer carboxylic acid compound as a binder, less inner resistance and high electric capacity can be maintained in use for a long period. <P>SOLUTION: The nonaqueous electrolytic solution used for the secondary battery having the negative electrode containing the polymer carboxylic acid compound contains an unsaturated phosphate ester compound represented by general formula (1). In the formula, R<SP>1</SP>and R<SP>2</SP>are each independently a hydrogen atom or an alkyl group of carbon number of 1 to 8, and R<SP>3</SP>is the alkyl group of carbon number of 1 to 8, an alkenyl group of carbon number of 2 to 8, an alkynyl group of carbon number of 2 to 8 or a halogenated alkyl group of carbon number of 1 to 8. <P>COPYRIGHT: (C)2011,JPO&INPIT |
