NONAQUEOUS ELECTROLYTE SOLUTION, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND CARBONATE COMPOUND

摘要

Disclosed is a nonaqueous electrolyte solution having more excellent cycle characteristics. Such a nonaqueous electrolyte solution contains a chain carbonate represented by the following formula. (In the formula, X's independently represent a hydrogen or an arbitrary group; Rrepresents an optionally substituted alkyl group; and n represents an integer of not less than 0)