| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolytic solution and a nonaqueous electrolytic solution battery having high capacity, superior charge and discharge characteristics at low temperatures, and also having superior high temperature cycle characteristics. <P>SOLUTION: In the nonaqueous electrolytic solution containing an electrolyte and a nonaqueous solvent dissolving it, the nonaqueous electrolytic solution contains cyclic acid anhydride, cyclic sulfonic acid ester, dialkenyl dicarboxylate, a compound expressed by formula (1) (R<SB>1</SB>to R<SB>4</SB>are hydrogen atoms, alkyl groups, or alkenyl groups), and a compound selected from the group consisting of boron-containing lithium salt, and furthermore contains dialkyl dicarboxylate compound. <P>COPYRIGHT: (C)2008,JPO&INPIT |
