| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-flammable nonaqueous electrolyte having excellent ion conductivity and battery characteristics, and not only exhibiting non-flammability as a liquid but also not causing combustion or explosion in the gas phase. <P>SOLUTION: In the non-flammable electrolyte, 10-90 vol.% of fluorine-containing phosphate ester represented by a general formula (1) (in the formula, Rf<SP POS="POST">1</SP>, Rf<SP POS="POST">2</SP>and Rf<SP POS="POST">3</SP>represent, respectively, a straight or branch alkyl group of 1-6C or a straight or branch fluorine-containing alkyl group of 1-6C, and at least one of Rf<SP POS="POST">1</SP>-Rf<SP POS="POST">3</SP>is a fluorine-containing alkyl group) is made to exist in a solution containing a cyclic carbonate and an electrolyte salt. <P>COPYRIGHT: (C)2013,JPO&INPIT |
