| abstract |
An object of the present invention is to provide a non-aqueous electrolyte secondary battery with less battery swelling during repeated charging and discharging. A positive electrode capable of storing and releasing metal ions, a metal compound-based material containing a metal capable of alloying with Li, capable of storing and releasing metal ions, a negative electrode containing a negative electrode active material containing graphite, and a non-negative electrode. A non-aqueous electrolyte solution comprising an aqueous solvent and a non-aqueous electrolyte solution containing an electrolyte dissolved in the non-aqueous solvent. A non-aqueous electrolyte solution used in a secondary battery, which is represented by the following general formula (A) or (B). A non-aqueous electrolyte solution containing at least one of the compounds to be used. (R 1 to R 3 represent an alkyl group having 1 to 10 carbon atoms which may have a substituent or an aryl group having 6 to 18 carbon atoms which may have a substituent, and X is hydrogen. , An alkenyl group or an alkynyl group having 1 to 10 carbon atoms. R 4 to R 6 represent a hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, and Y is S, NH or NR 7 is shown. R 7 is a hydrocarbon group having 1 to 20 carbon atoms.) |