NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer, and a nonaqueous electrolyte. The nonaqueous el...

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Bibliographische Detailangaben
Hauptverfasser:	Hirayama, Yasuko, Iida, Kazuhiro, Morisawa, Naoya, Chiga, Takanobu, Fukui, Atsushi
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer, and a nonaqueous electrolyte. The nonaqueous electrolyte contains a sulfonylimide salt and a nonaqueous solvent containing a fluorinated chain carboxylic acid ester represented by a general formula. The fluorinated chain carboxylic acid ester content of the nonaqueous solvent is 80 vol% or greater and the sulfonylimide salt content is 2.4 mol or greater with respect to 1 L of the nonaqueous solvent. (In the formula, R1 and R2 are any one of H, F, and CH3-xFx (where x is 1, 2 or 3), and can be the same or different. R3 is a C1-C3 alkyl group and can contain F.)