Electrolytic solution, non-aqueous secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus

1. A non-aqueous secondary battery comprising:

a cathode;

an anode; and

an electrolytic solution, wherein

the electrolytic solution includes

a non-aqueous solvent,

an electrolyte salt, and

one or both of a disulfonyl compound represented by a following Formula (1) and a disulfinyl compound represented by a following Formula (2),

wherein R1 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X1 is a halogen group,

wherein R2 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X2 is a halogen group, and

wherein

the hydrocarbon group is one of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, and a cycloalkyl group,

the oxygen-containing hydrocarbon group is one of an alkoxy group, a first ester group (—C(═O)—O—R3: R3 is an alkyl group), an ester carbonate group (—O—C(═O)—O—R4: R4 is an alkyl group), a second ester group (—O—C(═O)—R5: R5 is an alkyl group), and a polyether group (—(R6O) n -R7: R6 is an alkylene group, R7 is an alkyl group, and n is an integer number equal to or more than 2),

the halogenated hydrocarbon group and the halogenated oxygen-containing hydrocarbon group each include one or more of elements selected from a group including fluorine (F), chlorine (Cl), bromine (Br), and iodine (I), and

the halogen group is one of a fluorine group (—F), a chlorine group (—Cl), a bromine group (—Br), and an iodine group (—I).

2. The non-aqueous secondary battery according to claim 1 , wherein

each of carbon numbers of the alkyl group and the alkoxy group is from 1 to 18 both inclusive,

each of carbon numbers of the alkenyl group and the alkynyl group is from 2 to 18 both inclusive,

a carbon number of the aryl group is from 6 to 18 both inclusive, and

a carbon number of the cycloalkyl group is from 3 to 18 both inclusive.

3. The non-aqueous secondary battery according to claim 1 , wherein each of the X1 and the X2 is a fluorine group.

4. The non-aqueous secondary battery according to claim 1 , wherein

the disulfonyl compound includes one or more of compounds selected from a group including Formula (1-1) to Formula (1-19), and

the disulfinyl compound includes one or more of compounds selected from a group including Formula (2-1) to Formula (2-19),

CH 3 —N—(SO 2 F) 2   (1-1)

C 2 H 5 —N—(SO 2 F) 2   (1-2)

C 3 H 7 —N—(SO 2 F) 2   (1-3)

CH 2 ═CH—N—(SO 2 F) 2   (1-4)

CH≡C—N—(SO 2 F) 2   (1-5)

C 6 H 5 —N—(SO 2 F) 2   (1-6)

C 6 H 11 —N—(SO 2 F) 2   (1-7)

CH 3 —C(═O)O—C 2 H 4 —N—(SO 2 F) 2   (1-8)

CH 3 OC(═O)—C 2 H 4 —N—(SO 2 F) 2   (1-9)

CH 3 OC(═O)O—C 2 H 4 —N—(SO 2 F) 2   (1-10)

CH 3 OC(═O)O—C 3 H 6 —N—(SO 2 F) 2   (1-11)

CF 3 —N—(SO 2 F) 2   (1-12)

C 6 H 5 —CH 2 —N—(SO 2 F) 2   (1-13)

CH 3 —N—(SO 2 Cl) 2   (1-14)

CH 3 —N—(SO 2 Br) 2   (1-15)

CH 3 —N—(SO 2 I)2  (1-16)

CH 3 O—C 2 H 4 —N—(SO 2 F) 2   (1-17)

CH 3 —(OC 2 H 4 ) 2 —N—(SO 2 F) 2   (1-18)

CH 3 OC(═O)—N—(SO 2 F) 2   (1-19)

CH 3 —N—(SOF) 2   (2-1)

C 2 H 5 —N—(SOF) 2   (2-2)

C 3 H 7 —N—(SOF) 2   (2-3)

CH 2 ═CH—N—(SOF) 2   (2-4)

CH≡C—N—(SOF) 2   (2-5)

C 6 H 5 —N—(SOF) 2   (2-6)

C 6 H 11 —N—(SOF) 2   (2-7)

CH 3 —C(═O)O—C 2 H 4 —N—(SOF) 2   (2-8)

CH 3 OC(═O)—C 2 H 4 —N—(SOF) 2   (2-9)

CH 3 OC(═O)O—C 2 H 4 —N—(SOF) 2   (2-10)

CH 3 OC(═O)O—C 3 H 6 —N—(SOF) 2   (2-11)

CF 3 —N—(SOF) 2   (2-12)

C 6 H 5 —CH 2 —N—(SOF) 2   (2-13)

CH 3 —N—(SOCl) 2   (2-14)

CH 3 —N—(SOBr) 2   (2-15)

CH 3 —N—(SOI) 2   (2-16)

CH 3 O—C 2 H 4 —N—(SOF) 2   (2-17)

CH 3 —(OC 2 H 4 ) 2 —N—(SOF) 2   (2-18)

CH 3 OC(═O)—N—(SOF) 2   (2-19).

5. The non-aqueous secondary battery according to claim 1 , wherein one or both contents of the disulfonyl compound and the disulfinyl compound in the electrolytic solution are from 0.0005 mass % to 8 mass % both inclusive.

6. The non-aqueous secondary battery according to claim 1 , wherein

the non-aqueous solvent includes one or more of compounds selected from a group including a first unsaturated cyclic ester carbonate represented by a following Formula (3), a second unsaturated cyclic ester carbonate represented by a following Formula (4), a third unsaturated cyclic ester carbonate represented by a following Formula (5), a halogenated cyclic ester carbonate represented by a following Formula (6), and a halogenated chain ester carbonate represented by a following Formula (7),

wherein each of R11 and R12 is one of a hydrogen group and an alkyl group,

wherein each of R13 to R16 is one of a hydrogen group, an alkyl group, a vinyl group, and an allyl group; and one or more of R13 to R16 each are a vinyl group or an allyl group,

wherein R17 is >CR31R32; and each of R31 and R32 is one of a hydrogen group and an alkyl group,

wherein each of R21 to R24 is one of a hydrogen group, a halogen group, an alkyl group, and a halogenated alkyl group; and one or more of R21 to R24 are each one of a halogen group and a halogenated alkyl group,

wherein each of R25 to R30 is one of a hydrogen group, a halogen group, an alkyl group, and a halogenated alkyl group; and one or more of R25 to R30 are each a halogen group or a halogenated alkyl group.

7. The non-aqueous secondary battery according to claim 1 , wherein the electrolyte salt includes lithium bis(fluorosulfonyl)imide (LiN(SO 2 F) 2 ).

8. The non-aqueous secondary battery according to claim 1 , wherein the cathode, the anode, and the electrolytic solution are contained inside a film-like outer package member.

9. The non-aqueous secondary battery according to claim 1 , wherein the non-aqueous secondary battery is a lithium secondary battery.

10. An electrolytic solution comprising:

a non-aqueous solvent,

an electrolyte salt, and

one or both of a disulfonyl compound represented by a following Formula (1) and a disulfinyl compound represented by a following Formula (2),

wherein R1 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X1 is a halogen group,

wherein R2 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X2 is a halogen group, and

wherein

the hydrocarbon group is one of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, and a cycloalkyl group,

the oxygen-containing hydrocarbon group is one of an alkoxy group, a first ester group (—C(═O)—O—R3: R3 is an alkyl group), an ester carbonate group (—O—C(=O)—O—R4:

R4 is an alkyl group), a second ester group (—O—C(═O)—R5: R5 is an alkyl group), and a polyether group (—(R6O) n -R7: R6 is an alkylene group, R7 is an alkyl group, and n is an integer number equal to or more than 2),

the halogenated hydrocarbon group and the halogenated oxygen-containing hydrocarbon group each include one or more of elements selected from a group including fluorine (F), chlorine (Cl), bromine (Br), and iodine (I), and

the halogen group is one of a fluorine group (—F), a chlorine group (—Cl), a bromine group (—Br), and an iodine group (—I).

11. A battery pack comprising:

a non-aqueous secondary battery;

a control section configured to control operation of the non-aqueous secondary battery; and

a switch section configured to switch the operation of the non-aqueous secondary battery according to an instruction of the control section, wherein

the non-aqueous secondary battery includes a cathode, an anode, and an electrolytic solution, and

the electrolytic solution includes a non-aqueous solvent, an electrolyte salt, and one or both of a disulfonyl compound represented by a following Formula (1) and a disulfinyl compound represented by a following Formula (2),

wherein R1 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X1 is a halogen group,

wherein R2 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X2 is a halogen group, and

wherein

the hydrocarbon group is one of an alkyl group, an alkenyl group, an alkynyl group, an aryl group, and a cycloalkyl group,

the oxygen-containing hydrocarbon group is one of an alkoxy group, a first ester group (—C(═O)—O—R3: R3 is an alkyl group), an ester carbonate group (—O—C(=O)—O—R4:

R4 is an alkyl group), a second ester group (—O—C(═O)—R5: R5 is an alkyl group), and a polyether group (—(R6O) n -R7: R6 is an alkylene group, R7 is an alkyl group, and n is an integer number equal to or more than 2),

the halogenated hydrocarbon group and the halogenated oxygen-containing hydrocarbon group each include one or more of elements selected from a group including fluorine (F), chlorine (Cl), bromine (Br), and iodine (I), and

the halogen group is one of a fluorine group (—F), a chlorine group (—Cl), a bromine group (—Br), and an iodine group (—I).