NONAQUEOUS ELECTROLYTE SOLUTION, AND NONAQUEOUS ELECTROLYTE BATTERY HAVING SAME

摘要

This invention relates to a non-aqueous electrolyte exhibiting a non-combustibility even under a condition having a higher oxygen concentration, and more particularly to a non-aqueous electrolyte characterized by comprising a non-aqueous solvent containing a cyclic phosphazene compound represented by the following general formula (I):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(NPR 1 2 ) n ...€ƒ€ƒ€ƒ€ƒ€ƒ(I)
[wherein R 1 s are independently a halogen element or a monovalent substituent; and n is 3-4] and a fluorophosphate compound represented by the following general formula (II):
[wherein R 2 s are independently a halogen element, an alkoxy group or an aryloxy group, and at least one of the two R 2 s is the alkoxy group or the aryloxy group], and a support salt.