| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolytic solution for a secondary battery, which can maintain small internal resistance and a high electric capacity even after high temperature storage, and hardly causes the deterioration reaction of the nonaqueous electrolytic solution at a high temperature even though a positive electrode is made of a positive electrode active material containing nickel and iron, and to provide a nonaqueous electrolytic secondary battery using the nonaqueous electrolytic solution. <P>SOLUTION: A difluorosilane compound represented by formula (1) is mixed with the nonaqueous electrolytic solution for the secondary battery containing an organic solvent and an electrolyte salt (where, R<SP POS="POST">1</SP>represents a cycloalkyl group having 5-8 carbon atoms and R<SP POS="POST">2</SP>represents an alkyl group having 1-8 carbon atoms). <P>COPYRIGHT: (C)2012,JPO&INPIT |
