A module battery is housed in a module battery housing rack. An electric cell is housed in a container. The container is provided with a high thermal conductive wall and a low thermal conductive wall. A first portion of a plate overlaps the outer surface of the high thermal conductive wall and a second portion of the plate protrudes from the outer surface. The second portion surrounds the first portion. A first main surface of the plate is brought into direct contact with the outer surface at the first portion and it is apart from the container at the second portion. A second main surface of the plate is exposed to a space, to which heat is allowed to radiate. An opening may or may not be formed at the first portion. A thermal conducting medium may be held between the first wall and the first portion.

An air-zinc battery assembly includes a first air-zinc battery module that has a first coupling portion which is embossed or engraved, one or more second air-zinc battery modules that has a second coupling portion which is embossed or engraved so as to be fastened in engagement with the first coupling portion, and a third coupling portion which is embossed or engraved, and a power draw module that has a fourth coupling portion which is embossed or engraved so as to be fastened in engagement with the third coupling portion.

A power storage module disclosed herein includes a plurality of power storage devices. A low-temperature region with relatively low temperature and a high-temperature region with relatively high temperature exist in the power storage module when the plurality of power storage devices are charged and discharged, and in a first power storage device disposed in the low-temperature region among the plurality of power storage devices, the concentration of an electrolyte salt is closer to 1.1 mol/L than in a second power storage device disposed in the high-temperature region.

A power storage module disclosed herein includes a plurality of power storage devices. A low-temperature region with relatively low temperature and a high-temperature region with relatively high temperature exist in the power storage module when the plurality of power storage devices are charged and discharged, and in a first power storage device disposed in the low-temperature region among the plurality of power storage devices, the concentration of an electrolyte salt is closer to 1.1 mol/L than in a second power storage device disposed in the high-temperature region.

An electric device includes a first housing, a second housing, a cell assembly, a fire extinguisher, and a first wire. The second housing includes a first surface, the fire extinguisher is disposed on the first surface, and the fire extinguisher includes a first side, a second side, a third side, and a fourth side. The first wire is disposed on the first surface, and the first wire includes a first part, a second part, and a third part, where the first part, the second part, and the third part are connected in sequence. A portion of the first part is opposite to the first side, a portion of the second part is opposite to the second side, a portion of the third part is opposite to the third side, and the first part is connected to the first side.

An electric device includes a first housing, a second housing, a cell assembly, a fire extinguisher, and a first wire. The second housing includes a first surface, the fire extinguisher is disposed on the first surface, and the fire extinguisher includes a first side, a second side, a third side, and a fourth side. The first wire is disposed on the first surface, and the first wire includes a first part, a second part, and a third part, where the first part, the second part, and the third part are connected in sequence. A portion of the first part is opposite to the first side, a portion of the second part is opposite to the second side, a portion of the third part is opposite to the third side, and the first part is connected to the first side.

Disclosed embodiments include thermal management systems and methods configured to heat and/or cool an electrical device. Thermal management systems can include a heat spreader in thermal communication with a temperature sensitive region of the electrical device. The heat spreader can include the one or more pyrolytic graphite sheets. The heat spreader can include thermal/electrical elevators connecting the one or more pyrolytic graphite sheets. The systems can include a thermoelectric device in thermal communication with the heat spreader. Electric power can be directed to the heat spreader and/or thermoelectric device to provide controlled heating and/or cooling of the electrical device.

A composite battery and a composite battery system including the composite battery are provided. A composite battery includes an all-solid-state secondary battery, a lithium ion secondary battery, an operating voltage holding device, and a housing. The all-solid-state secondary battery operates under a predetermined temperature condition. The lithium ion secondary battery is of a high-power type connected in parallel to the all-solid-state secondary battery. The operating voltage holding device is for holding the operating voltage of the all-solid-state secondary battery within a predetermined range. The housing is formed of a heat-insulating member such that the inside of the housing is thermally isolated from the outside of the housing. The all-solid-state secondary battery is disposed inside the housing, and the lithium ion secondary battery and the operating voltage holding device are disposed outside the housing.

A vehicle body member includes a first cell portion including a first negative pole portion and a first positive pole portion disposed to be in contact with a surface of the first negative pole portion, a second cell portion including a second negative pole portion and a second positive pole portion disposed to be in contact with a surface of the second negative pole portion, an insulating layer disposed between the first cell portion and the second cell portion, a series connector connecting the first negative pole portion of the first cell portion and the second positive pole portion of the second cell portion in series, a positive pole current collector connected to the first positive pole portion of the first cell portion, and a negative pole current collector connected to the second negative pole portion of the second cell portion.

A module battery having high thermal insulating performance during standby and being easy to manufacture is provided. In a module battery container including: a box for containing a plurality of cells each being a high-temperature secondary cell; and a lid for occluding an opening of the box, the box and the lid each have an atmospheric thermal insulating structure including: an inner container and an outer container each including a metal plate and having a cuboid shape; and a thermal insulating material loaded between the inner container and the outer container, and, in each of the box and the lid, the inner container and the outer container are not in contact with each other, and the thermal insulating material is exposed only at an open end.