Abstract: An electrically powered vehicle includes a vehicle body, a battery module, a hydrogen sulfide sensor, an air conditioner, and an ECU. When the hydrogen sulfide sensor detects generation of a gas or detects that the generation of the gas is predicted in an inside air mode, the ECU performs a restriction mode of restricting an amount of airflow from the air conditioner.

Abstract: An electrically powered vehicle includes a vehicle body, a battery module, a hydrogen sulfide sensor, an air conditioner, and an ECU. When the hydrogen sulfide sensor detects generation of a gas or detects that the generation of the gas is predicted, the ECU reduces an amount of airflow from the air conditioner as compared to that in a comparative state. The comparative state includes a state in which the hydrogen sulfide sensor does not detect the generation of the gas.

Abstract: An abnormality determination system includes: a battery pack; a first acquisition device that acquires a first temperature indicating a temperature of a first region of the battery pack; a second acquisition device that acquires a second temperature indicating a temperature of a second region different from the first region; and a control device that determines whether an abnormality has occurred inside or outside the battery pack using information about a history of the first temperature and a history of the second temperature.

Abstract: A battery system includes: a battery stack; a housing that houses the battery stack and that is installed in a vehicle; a first thermistor that detects a first temperature of the housing; a second thermistor that detects a second temperature in the housing; and a battery ECU that compares a result of detection by the first thermistor with a result of detection by the second thermistor to determine whether a temperature increase in the battery stack is due to a change in an external environment of a battery pack or due to a malfunction in a battery cell.

Abstract: The power storage device includes a casing having a frame member, and a power storage unit (power storage module) housed in the casing. The frame member is formed with an exhaust passage that guides the gas discharged from the power storage unit to the outside of the casing. A check valve is provided in the exhaust passage. The check valve is configured to allow the flow of gas out of the casing and to suppress the flow of gas in a direction opposite to the allowed flow of gas.

Abstract: The first power storage module and the second power storage module are disposed in the housing case in the Y direction. A first space is formed between the first power storage module and the second power storage module and the first side wall portion in the +X direction. A second space is formed between the first power storage module and the second power storage module and the first side wall portion in the ?X direction. The third side wall portion and the fourth side wall portion in the Y direction are provided with a case exhaust valve for discharging the gas discharged from the power storage cell to the outside of the housing case.

Abstract: The power storage device includes a housing having a frame member and a power storage unit (power storage module) housed in the housing. The frame member is provided with an exhaust path that guides the gas discharged from the power storage unit to the outside of the housing. The exhaust path is provided with a blocking member (detection member) that blocks the exhaust path. The blocking member is configured to be broken by a pressure increase due to the gas discharged from the power storage unit.

Abstract: The power storage device includes a power storage module including a plurality of power storage stacks, and a housing case that houses the power storage module. The housing case includes a plurality of frame portions defining a region in which each of the plurality of power storage stacks is disposed. The plurality of frame portions includes a first frame portion in which an exhaust path through which gas is flowable is provided, and a second frame portion in which an exhaust path is not provided. The plurality of power storage stacks includes a first power storage stack and a second power storage stack disposed adjacent to each other. The first frame portion is disposed between the first power storage stack and the second power storage stack. The first frame portion has higher heat resistance than the second frame portion.

Abstract: The power storage device includes one or more power storage stacks, and includes a power storage module having a total positive terminal and a total negative terminal, a housing case for housing the power storage module, a case-side exhaust valve provided in the housing case, and a first connector electrically connected to the total positive terminal and a second connector electrically connected to the total negative terminal, wherein the housing case has a first wall portion and a second wall portion opposed to each other in the first direction, the first connector and the second connector are provided in the first wall portion, the case-side exhaust valve is provided in the second wall portion, and each of the one or more power storage stacks is provided so as to be capable of discharging gas in a second direction orthogonal to the first direction.

Abstract: A power storage device includes a housing case including a first side wall portion, a second side wall portion, a first inner wall portion, and a second inner wall portion, and a first power storage stack, a second power storage stack, and a third power storage stack disposed between the first side wall portion and the first inner wall portion, between the first inner wall portion and the second inner wall portion, and between the second inner wall portion and the second side wall portion, respectively. The first and second inner wall portions have a first inner side surface and a first outer side surface, the first and second side wall portions have a second inner side surface, and on the first and second inner side surfaces, an opening communicating with an exhaust path is provided more than the first outer side surface.

Abstract: An energy storage device includes a housing case having an opening, an energy storage module, a frame member covering the opening, and a cooler for cooling the energy storage module. The energy storage module includes an energy storage stack disposed adjacent to each other, and the frame member is disposed between the energy storage stacks disposed adjacent to each other, and a gas discharge path communicating with the opening is positioned inside the frame member, and the frame member is provided with an inlet hole for introducing gas discharged from any of the energy storage stacks disposed adjacent to each other into the gas discharge path, and the cooler is provided with a through hole at a position corresponding to the opening.

Abstract: The power storage device includes a first power storage stack and a second power storage stack, a housing case that houses the first power storage stack and the second power storage stack, and an electrical connection member that electrically connects the first power storage stack and the second power storage stack, wherein the housing case includes an expansible region that is inflatable and deformable when gas is discharged from the first power storage stack or the second power storage stack, and the electrical connection member has a fragile portion and is fixed to the expansible region.

Abstract: An electricity storage device includes a plurality of electricity storage stacks and a housing case that houses the electricity storage stacks. The housing case includes a top plate part that is located on an upper side of the electricity storage stacks and has an uneven shape, and demarcation members that demarcate regions where the electricity storage stacks are respectively disposed. The top plate part includes protruding portions that protrude upward and depressed portions that are depressed downward. The demarcation members are each disposed between the electricity storage stacks that lie next to each other. Flow passages through which a gas discharged from the electricity storage stacks flows are provided inside the demarcation members. The demarcation members are in contact with the depressed portion.

Abstract: A vehicle includes: one or more power storage stacks; a housing case; a cooler placed adjacent to the housing case, refrigerant being allowed to flow through the cooler; and a refrigerant circulation path that is placed outside the housing case and allows the refrigerant discharged from the cooler to be circulated through the refrigerant circulation path and introduced again into the cooler, the refrigerant circulation path is equipped with an extinguishant inlet that allows an extinguishant to be introduced into the refrigerant circulation path, the cooler is equipped with a fragile portion to be broken by pressure of the extinguishant introduced from the extinguishant inlet into the refrigerant circulation path, to cause an inside of the housing case to communicate with the refrigerant circulation path, and the housing case is equipped with a pressure release valve located higher than the one or more power storage stacks.

Abstract: An energy storage device includes a first energy storage stack and a second energy storage stack, an electrical device, and a housing case, and the housing case is provided with a case-side discharge valve capable of discharging the gas discharged into the housing case, the first energy storage stack and the second energy storage stack are arranged side by side at intervals in the first direction, the electrical device is arranged in a clearance between the first energy storage stack and the second energy storage stack, and a space capable of flowing the gas discharged from the first energy storage stack or the gas discharged from the second energy storage stack is provided in a clearance between the first energy storage stack and the second energy storage stack.

Abstract: A vehicle includes: a vehicle body provided with a boarding space; and a power storage device disposed below the boarding space, wherein the power storage device includes one or more power storage stacks and an accommodation case that accommodates the one or more power storage stacks, the accommodation case has a lower case in which the one or more power storage stacks are disposed, and a plurality of wall portions that partition a region in which the one or more power storage stacks are disposed, a gas-discharge path through which gas discharged from the one or more power storage stacks is flowable is provided inside each of the plurality of wall portions, and a heat insulating member is disposed between each of the plurality of wall portions and the boarding space.

Abstract: A power storage device includes: a first power storage stack and a second power storage stack spaced apart from each other in a first direction; and an accommodation case, wherein the accommodation case is provided with a case-side exhaust valve, the first power storage stack includes a plurality of first unit cells arranged in a second direction orthogonal to the first direction, the second power storage stack includes a plurality of second unit cells arranged in the second direction, each of the plurality of first unit cells is provided with a first exhaust valve that can discharge a gas toward a side opposite to a side where the second power storage stack is located, and each of the plurality of second unit cells is provided with a second exhaust valve that can discharge a gas toward a side opposite to a side where the first power storage stack is located.

Abstract: A power storage module includes a first stack and a second stack alternately disposed side by side in a first direction, wherein the first stack includes a plurality of first unit cells arranged in the first direction, and the second stack includes a plurality of second unit cells arranged in an up-down direction orthogonal to the first direction.