Electrolytic solution for secondary battery, and secondary battery

A secondary battery comprising:

• a positive electrode;
• a negative electrode;
• and
• an electrolytic solution including a fluorine-containing compound, wherein the fluorine-containing compound includes at least one of respective compounds represented by Formulae (1) to (22),
• where
• each of R1 to R16 is any of hydrogen (H), fluorine (F), a hydrocarbon group, an oxygen-containing hydrocarbon group, a fluorinated hydrocarbon group, or a fluorine-containing group represented by Formula (30),
• at least one of R1 to R4 is the fluorine-containing group represented by Formula (30),
• at least one of R5 to R10 is the fluorine-containing group represented by Formula (30),
• at least one of R11 or R12 is the fluorine-containing group, and
• at least one of R13 to R16 is the fluorine-containing group,
• where
• each of R17 to R38 is any of hydrogen, fluorine, a hydrocarbon group, an oxygen-containing hydrocarbon group, a fluorinated hydrocarbon group, or the fluorine-containing group represented by Formula (30),
• at least one of R17 to R20 is the fluorine-containing group,
• at least one of R21 to R26 is the fluorine-containing group,
• at least one of R27 to R34 is the fluorine-containing group, and
• at least one of R35 to R38 is the fluorine-containing group,
• where
• each of R39 to R44 is any of hydrogen, fluorine, a hydrocarbon group, an oxygen-containing hydrocarbon group, a fluorinated hydrocarbon group, or the fluorine-containing group represented by Formula (30),
• each of R45, R46, and R52 is any of a hydrocarbon group, a fluorinated hydrocarbon group, or the fluorine-containing group represented by Formula (30),
• each of R47 to R51 is any of hydrogen, fluorine, an alkyl group, an alkoxy group, or a fluorinated alkyl group,
• at least one of R39 to R44 is the fluorine-containing group,
• at least one of R45 or R46 is the fluorine-containing group represented by Formula (30) wherein R201, R202, R204 and R205 is hydrogen and R203 is a trifluoromethyl group, and
• at least one of R47 to R51 is a trifluoromethyl group,
• where
• each of R53 to R70 is any of hydrogen, fluorine, an alkyl group, an alkoxy group, or a fluorinated alkyl group,
• each of R71 and R72 is any of hydrogen, fluorine, a hydrocarbon group, an oxygen-containing hydrocarbon group, a fluorinated hydrocarbon group, or the fluorine-containing group represented by Formula (30),
• at least one of R53 to R62 is a trifluoromethyl group,
• at least one of R63 to R66 is a trifluoromethyl group, and
• at least one of R67 to R70 is a trifluoromethyl group,
• where
• each of R73 to R76, R79 to R82, and R85 to R88 is any of hydrogen, fluorine, an alkyl group, an alkoxy group, or a fluorinated alkyl group,
• each of R77, R78, R83, R84, and R89 to R92 is any of hydrogen, fluorine, a hydrocarbon group, an oxygen-containing hydrocarbon group, a fluorinated hydrocarbon group, or the fluorine-containing group represented by Formula (30),
• at least one of R73 to R76 is a trifluoromethyl group,
• at least one of R79 to R82 is a trifluoromethyl group, and
• at least one of R85 to R88 is a trifluoromethyl group,
• where
• each of R93 to R96 and R109 to R116 is any of hydrogen, fluorine, an alkyl group, an alkoxy group, or a fluorinated alkyl group,
• each of R97 to R108, R117, and R118 is any of hydrogen, fluorine, a hydrocarbon group, an oxygen-containing hydrocarbon group, a fluorinated hydrocarbon group, or the fluorine-containing group represented by Formula (30),
• at least one of R93 to R96 is a trifluoromethyl group,
• at least one of R99 to R102 is the fluorine-containing group,
• at least one of R103 to R108 is the fluorine-containing group,
• at least one of R109 to R112 is a trifluoromethyl group, and
• at least one of R113 to R116 is a trifluoromethyl group,
• where
• each of R201 to R205 is any of hydrogen or a trifluoromethyl group,
• an asterisk (*) is a dangling bond, and
• at least one of R201 to R205 is a trifluoromethyl group.