NONAQUEOUS ELECTROLYTE, CAPACITOR DEVICE USING SAME, AND CARBOXYLIC ACID ESTER COMPOUND USED IN SAME

In the formula, each of R1 and R2 independently represents a hydrogen atom, a -C(═O)-OR4 group, or the like, and R1 and R2 may be bonded to each other to form a ring structure. R3 represents a hydrogen atom or the like, and n represents an integer of 1 to 3. When n is 1, then L and R4 represent an a...

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Hauptverfasser: Shikita, Shoji, Miyoshi, Kazuhiro, Shimamoto, Kei, Abe, Koji
Format: Patent
Sprache:eng
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Zusammenfassung:In the formula, each of R1 and R2 independently represents a hydrogen atom, a -C(═O)-OR4 group, or the like, and R1 and R2 may be bonded to each other to form a ring structure. R3 represents a hydrogen atom or the like, and n represents an integer of 1 to 3. When n is 1, then L and R4 represent an alkyl group having 1 to 6 carbon atoms or the like; and when n is 2 or 3, then L represents an n-valent connecting group, X represents a -C(═O)- group, an -S(═O)- group, an -S(═O)2- group, an -S(═O)2-R5-S(═O)2- group or a CR6R7 group, R5 represents an alkylene group having 1 to 4 carbon atoms, and each of R6 and R7 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.