| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the flame resistance of a nonaqueous secondary battery without impairing the battery performance. <P>SOLUTION: A nonaqueous secondary battery comprises a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The nonaqueous electrolytic solution contains a compound represented by the formula (1), where X represents a C1-C5 divalent group which may be branched and is derived from a chain saturated hydrocarbon, =C=CH<SB POS="POST">2</SB>, =C=O, =C=S=O, =O, or =S, and A1 and A2 may be identical to or different from each other, and represent a methylene group which may have a substituent, =C=O, or =SO<SB POS="POST">2</SB>; and an amine derivative represented by the formula (2) where R5-CO-, R6-CO-, and -O-CO-R7 are bound to N, where R5 to R7 may be identical to or different from one another, and represent a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkoxy group, a lower alkoxycarbonyl group, a lower alkylcarbonyl group, a lower cycloalkyl group, or an aryl group, each of which may have a substituent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
