Abstract: A voltage detection unit includes: a voltage detection terminal having a first location configured to be conductively connected to a detection target; a plate-shaped housing having a terminal accommodating recess accommodating the voltage detection terminal; a cover configured to be locked to the housing at a temporary locking position where the first location of the voltage detection terminal accommodated in the terminal accommodating recess is not covered and a final locking position where the first location is covered; a temperature measurer accommodating a temperature-measuring element and attached to the housing; and an electric wire conductively connected to a second location of the voltage detection terminal and drawn out to the outside of the housing. The temperature measurer is arranged such that at least a part of the temperature measurer is overlapped with the voltage detection terminal in a plate thickness direction of the housing.

Abstract: A conductive module includes: a conductive board; a voltage detection terminal having a first location configured to be conductively connected to the conductive board; a temperature measurer including a temperature-measuring element and a case holding the temperature-measuring element; a plate-shaped housing assembled to the conductive board, the housing having a terminal accommodating recess accommodating the voltage detection terminal and a temperature measurer accommodating recess accommodating the temperature measurer; a heat-conductive filler disposed in a recessed groove of the temperature measurer accommodating recess; a cover configured to be locked to the housing at a temporary locking position where the first location of the voltage detection terminal accommodated in the terminal accommodating recess is not covered and a final locking position where the first location is covered; and an electric wire conductively connected to a second location of the voltage detection terminal and drawn out to the o

Abstract: A power storage device includes a pair of restraint plates configured to sandwich and restrain a stacked body, a pair of current collector plates, and a pair of insulating plates in a first direction; and a terminal base configured to be provided on a side surface of at least one of the restraint plates extending in a third direction intersecting both the first direction and a second direction, and the first direction, and have a terminal bolt fixed thereto. The at least one of the restraint plates is configured to have a pair of projecting portions projecting in the second direction beyond the side surface having the terminal base fixed thereto when viewed in the first direction.

Abstract: A first board-shaped member includes a conductive plate disposed between a plurality of stacked power storage modules, a battery stack plate including a board-shaped insulating housing having a fitting groove recessed in a side face of the board-shaped insulating housing so as to fit with a side edge of the conductive plate, a sealing material supply groove respectively provided in front and back faces of the insulating housing along an extension direction of the fitting groove, a through hole that communicates with the sealing material supply groove and the fitting groove, and a sealing material pre-filled into the fitting groove and extruded from the fitting groove to the front and back faces of the insulating housing through the through hole and the sealing material supply groove when the side edge of the conductive plate is fitted into the fitting groove.

Abstract: A voltage detection unit includes a voltage detection terminal having a first location being conductively connected to a detection target, a board-shaped housing having a terminal accommodating recess in which the voltage detection terminal is accommodated, a cover locked to the housing at a first temporary locking position where the first location of the voltage detection terminal accommodated in the terminal accommodating recess is not covered and a final locking position where the first location is covered, and an electric wire conductively connected to a second location of the voltage detection terminal and drawn out toward the outside of the housing. The housing includes a guide portion guiding the cover from the outside toward the first temporary locking position, and a first wall abutting on the cover when the cover is positioned at the first temporary locking position in a moving direction in which the cover is guided.

Abstract: A temperature detection unit includes a board-shaped housing having a board side face provided with a recess configured to be fitted with a side edge of a conductive board disposed between a plurality of stacked power storage modules, and a temperature detection sensor mounted on the housing and configured to measure a temperature of the power storage modules. The housing is provided with a sensor accommodating recess accommodating the temperature detection sensor. A plate end face on one side facing an intersecting direction with a direction that the board side face of the housing faces is provided with an opening configured to allow a temperature wire connected to the temperature detection sensor to extend toward the outside. The sensor accommodating recess extends obliquely to approach the conductive board from one side toward the other side in the intersecting direction.

Abstract: The extraction portion of a current collector plate is configured to include a first piece portion extending in a direction orthogonal to the first direction from an outer edge portion provided on an edge of the flat plate portion when viewed from the first direction, a second piece portion extending in the first direction and having an attachment portion that attaches the extraction portion, and a bent portion being where a plate material configuring the extraction portion bends, and connecting the first piece portion and the second piece portion. A spring portion that is configured to relieve a stress acting on the extraction portion is provided between the connection portion to the outer edge portion and the attachment portion in the extraction portion. The spring portion includes at least a first bent portion being where the plate material bends other than at the bent portion.

Abstract: The power storage device includes a power storage module and a conductive plate. The power storage module includes an electrode laminate including current collectors stacked on each other in a first direction. At least one of the positive electrode terminal electrode, the negative electrode terminal electrode, and the bipolar electrode includes an active material layer including grooves arranged in a second direction orthogonal to the first direction, and the grooves extend in a third direction crossing the second direction. The conductive plate includes an outer surface including depressions depressed in the first direction and extending in the second direction, the current collector arranged at the stack end of the electrode laminate includes an exposed face in contact with the outer surface, the exposed surface includes protrusions overlapping the active material layer in the first direction, and the protrusions protrude in the first direction and extend in the third direction.

Abstract: A power storage device includes a power storage module, a current collector plate, an insulating plate, and a restraint plate. The insulating plate and the restraint plate have different coefficients of thermal expansion. The insulating plate has a facing surface facing the restraint plate, and a first protruding portion provided on the facing surface in a position spaced from a center of the facing surface. The restraint plate is provided with a first hole portion into which the first protruding portion is inserted. The first protruding portion is divided into a first protrusion and a second protrusion in a second direction. The first protrusion is disposed closer to the center of the facing surface in the second direction. The second protrusion is disposed closer to an outer edge of the facing surface in the second direction.

Abstract: The power storage device includes power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the power storage units includes an electrode stack including bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrodes of the electrode stack. At least one of the power storage units is provided with an overhang member on an outer peripheral surface of the sealing member. The overhang member includes an inclined portion that extends from the outer peripheral surface of the sealing member toward the outside of the power storage unit and inclines downward as it leaves away from the outer peripheral surface of the sealing member, and a top portion formed at a lower end of the inclined portion.

Abstract: A power storage device includes a plurality of laminated power storage modules, a flow path member disposed in contact with the power storage modules and having flow paths for allowing a cooling medium to flow along a first direction intersecting a laminating direction of the power storage modules, a pair of restraining plates disposed to sandwich the power storage modules and the flow path member in the laminating direction, fastening members applying a restraining load to the power storage modules and the flow path member via the pair of restraining plates by fastening the restraining plates to each other, and a lead-in duct disposed at one end portion of the flow path member in the first direction and leading the cooling medium into each of the flow paths.

Abstract: A voltage detection unit includes a voltage detection terminal including a first portion configured to be conductively connected to a detection target and a second portion, a housing having a plate shape and including a terminal accommodating concave configured to accommodate the voltage detection terminal, a cover configured to be engaged with the housing at a temporary locking position at which the cover does not cover the first portion of the voltage detection terminal accommodated in the terminal accommodating concave and at a final locking position at which the cover covers the first portion and an electric wire conductively connected to the voltage detection terminal at the second portion and configured to, when the voltage detection terminal is accommodated in the terminal accommodating concave, be drawn out from the housing.

Abstract: A power storage device includes: a module stacked body including a plurality of power storage modules stacked in a first direction and having a first side surface extending in the first direction and a second direction orthogonal to the first direction and a second side surface adjacent to the first side surface and extending in the first direction and a third direction orthogonal to the first side surface and the second direction; a first restraint plate and a second restraint plate stacked on both sides of the module stacked body in the first direction and applying a restraint load to the module stacked body in the first direction; a wiring connected to the module stacked body; and a guide member coupled to the first restraint plate and the second restraint plate and disposing the wiring on the first side surface.

Abstract: A battery stack plate including a housing is provided. The housing has a first sub housing and a second sub housing. Each of the first and second sub housings has a coupling portion coupling the first and second sub housings to each other. The coupling portion includes a protruding portion provided on a coupling plate side face on which the first sub housing and the second sub housing are coupled to each other, and a recessed portion provided on the coupling plate side face at a position shifted from the protruding portion in the up-down direction.

Abstract: A power storage device includes a power storage module, a conductive plate, and a sealing member. The power storage module includes an electrode laminate and a sealing body. The sealing body includes a plurality of resin portions. Metal plates at laminate ends of the electrode laminate each have an exposed surface exposed from the resin portion. The exposed surface includes a contact region and a non-contact region. The sealing member includes a first sealing portion. The first sealing portion is provided along an inner edge of the resin portion to be in contact with the resin portion. The first sealing portion adheres to the conductive plate and the non-contact region and fills a portion between the conductive plate and the non-contact region. The first sealing portion seals a portion between the conductive plate and the exposed surface.

Abstract: A voltage detection unit includes a voltage detection terminal, a housing including a terminal accommodating concave and a cover to be attached to the housing and to cover the voltage detection terminal accommodated in the terminal accommodating concave. The cover includes an extension piece extending in a first direction. The housing includes an accommodating hole to accommodate the extension piece, and a guide portion including an inclined surface and a guide surface. The inclined surface has a first end in the first direction and a second end and is inclined with respect to the first direction such that the first end is provided closer to the accommodating hole than the second end in a second direction perpendicular to the first direction and being parallel to the housing. The guide surface is continuous with the inclined surface and an inner wall surface of the accommodating hole.