A secondary battery, comprising: a cathode; an anode; and an electrolytic solution including a cyano compound represented by the following formula , the cathode, the anode, and the electrolytic solution being provided inside a film-like outer package member, where X1 n1+ is one of a metal ion and an onium ion, M1 is one of transition metal elements, and Group 13 elements, Group 14 elements, and Group 15 elements in the long form of the periodic table of the elements, Rf is one of a fluorine group and a monovalent fluorinated hydrocarbon group, Y1 is one of -C(=O)-(CR1 2 ) d1 -C(=O)-, - CR2 2 -(CR3z) e1 -C(=O)-, -S(=O) 2 -(CR3 2 ) e1 -S(=O) 2 -, -CR2 2 -(CR3 2 ) e1 -S(=O) 2 -, -C( =O)-(CR3 2 ) e1 -S(=O) 2 -, and -CR2 2 -(CR3 2 ) e1 -CR2 2 -, each of R1, R2, and R3 is one of a hydrogen group (-H), a fluorine group (-F), a monovalent hydrocarbon group, and a monovalent fluorinated hydrocarbon group, each of a1, f1, and n1 is an integer of 1 or 2, b1 is an integer of 1 to 4, c1 is an integer of 0 to 3, each of d1 and e1 is an integer of 0 to 4, and each of g1 and m1 is an integer of 1 to 3, characterized in that the electrolytic solution includes one or more of halogenated carbonate esters represented by the following formulas and , where each of R18 to R21 is one of a hydrogen group, a halogen group, an alkyl group, and a halogenated alkyl group, one or more of R18 to R21 is one of the halogen group and the halogenated alkyl group, each of R22 to R27 is one of a hydrogen group, a halogen group, an alkyl group, and a halogenated alkyl group, and one or more of R22 to R27 is one of the halogen group and the halogenated alkyl group. a cathode; an anode; and an electrolytic solution including a cyano compound represented by the following formula , the cathode, the anode, and the electrolytic solution being provided inside a film-like outer package member, where X1 n1+ is one of a metal ion and an onium ion, M1 is one of transition metal elements, and Group 13 elements, Group 14 elements, and Group 15 elements in the long form of the periodic table of the elements, Rf is one of a fluorine group and a monovalent fluorinated hydrocarbon group, Y1 is one of -C(=O)-(CR1 2 ) d1 -C(=O)-, - CR2 2 -(CR3z) e1 -C(=O)-, -S(=O) 2 -(CR3 2 ) e1 -S(=O) 2 -, -CR2 2 -(CR3 2 ) e1 -S(=O) 2 -, -C( =O)-(CR3 2 ) e1 -S(=O) 2 -, and -CR2 2 -(CR3 2 ) e1 -CR2 2 -, each of R1, R2, and R3 is one of a hydrogen group (-H), a fluorine group (-F), a monovalent hydrocarbon group, and a monovalent fluorinated hydrocarbon group, each of a1, f1, and n1 is an integer of 1 or 2, b1 is an integer of 1 to 4, c1 is an integer of 0 to 3, each of d1 and e1 is an integer of 0 to 4, and each of g1 and m1 is an integer of 1 to 3, characterized in that the electrolytic solution includes one or more of halogenated carbonate esters represented by the following formulas and , where each of R18 to R21 is one of a hydrogen group, a halogen group, an alkyl group, and a halogenated alkyl group, one or more of R18 to R21 is one of the halogen group and the halogenated alkyl group, each of R22 to R27 is one of a hydrogen group, a halogen group, an alkyl group, and a halogenated alkyl group, and one or more of R22 to R27 is one of the halogen group and the halogenated alkyl group. <EOS>