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

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),
• where 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,
• where 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.

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),
• where 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,
• where 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.

An electric vehicle comprising:

• a non-aqueous secondary battery;
• a conversion section configured to convert electric power supplied from the non-aqueous secondary battery into drive power;
• a drive section configured to operate according to the drive power;
• and
• a control section configured to control operation of the non-aqueous secondary battery, 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),
• where 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,
• where 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.

An electric power storage system comprising:

• a non-aqueous secondary battery;
• one or more electric devices configured to be supplied with electric power from the non-aqueous secondary battery;
• and
• a control section configured to control the supplying of the electric power from the non-aqueous secondary battery to the one or more electric devices, 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),
• where 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,
• where 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.

An electric power tool comprising:

• a non-aqueous secondary battery;
• and
• a movable section configured to be supplied with electric power from the non-aqueous secondary battery, 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),
• where 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,
• where 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.

An electronic apparatus comprising a non-aqueous secondary battery as an electric power supply source, 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),
• where 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,
• where 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.