SECONDARY BATTERY-USE ELECTROLYTIC SOLUTION, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS
A secondary battery includes a cathode, an anode, and an electrolytic solution in which a polymer compound is dissolved.
1 . A secondary battery, comprising:
a cathode;
an anode; and
an electrolytic solution in which a polymer compound is dissolved.
2 . The secondary battery according to claim 1 , wherein
the electrolytic solution contains a nonaqueous solvent and an electrolyte salt, and
the polymer compound is dissolved by the nonaqueous solvent.
3 . The secondary battery according to claim 1 , wherein the polymer compound contains one or more of polyvinylidene fluoride, polyethylene oxide, polyacrylonitrile, and poly(methyl methacrylate) ethylene oxide ester represented by a formula (1):
where n is an integer of 1 or more, and m is 1, 4, or 9.
4 . The secondary battery according to claim 1 , further comprising a polymer compound that is not dissolved in the electrolytic solution, wherein
the electrolytic solution is held by the polymer compound that is not dissolved in the electrolytic solution.
5 . The secondary battery according to claim 1 , further comprising:
a separator provided between the cathode and the anode; and
a polymer compound layer provided between the cathode and the separator, between the anode and the separator, or both.
6 . The secondary battery according to claim 5 , wherein
the polymer compound layer contains a fluorine-containing polymer compound, and
the fluorine-containing polymer compound contains one or more fluorines (F) as a constituent element.
7 . The secondary battery according to claim 5 , wherein
the separator has a cathode-facing surface that faces the cathode and an anode-facing surface that faces the anode, and
the polymer compound layer is provided one or both of the cathode-facing surface and the anode-facing surface.
8 . The 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 secondary battery according to claim 1 , wherein the secondary battery is a lithium secondary battery.
10 . A secondary battery-use electrolytic solution comprising a polymer compound that is dissolved in the secondary battery-use electrolytic solution.
11 . A battery pack comprising:
a secondary battery;
a controller that controls an operation of the secondary battery; and
a switch section that switches the operation of the secondary battery in accordance with an instruction from the controller,
the secondary battery including a cathode, an anode, and an electrolytic solution in which a polymer compound is dissolved.
12 . An electric vehicle comprising:
a secondary battery;
a converter that converts electric power supplied from the secondary battery into drive power;
a drive section that operates in accordance with the drive power; and
a controller that controls an operation of the secondary battery,
the secondary battery including a cathode, an anode, and an electrolytic solution in which a polymer compound is dissolved.
13 . An electric power storage system comprising:
a secondary battery;
one or more electric devices that are supplied with electric power from the secondary battery; and
a controller that controls the supplying of the electric power from the secondary battery to the one or more electric devices,
the secondary battery including a cathode, an anode, and an electrolytic solution in which a polymer compound is dissolved.
14 . An electric power tool comprising:
a secondary battery; and
a movable section that is supplied with electric power from the secondary battery,
the secondary battery including a cathode, an anode, and an electrolytic solution in which a polymer compound is dissolved.
15 . An electronic apparatus comprising a secondary battery as an electric power supply source, the secondary battery including a cathode, an anode, and an
electrolytic solution in which a polymer compound is dissolved.