| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte solution, having high capacity, as well as, superior preservation characteristics at high temperatures, and to provide a nonaqueous electrolyte solution battery that uses the solution. <P>SOLUTION: In a non-aqueous electrolyte solution containing an electrolyte and a non-aqueous solvent that dissolves the solution, the non-aqueous solvent contains ethylene carbonate, dimethyl carbonate, and ethylmethyl carbonate, and diethyl carbonate, and the content ratio of the ethylene carbonate occupied in the total non-aqueous solvent is 1 vol.% or more and 40 vol.% or less; the content ratio of the dimethyl carbonate is 35 vol.% or more and 85 vol.% or less; the content ratio of the diethyl carbonate is 1 vol.% or more and 40 vol.% or less; and the volume ratio of the dimethyl carbonate with respect to the ethylmethyl carbonate (dimethyl carbonate/ethylmethyl carbonate) is larger than 9. <P>COPYRIGHT: (C)2010,JPO&INPIT |
