Abstract: A power storage module includes a plurality of power storage devices and a bus bar electrically connecting the plurality of power storage devices. Each power storage device has a housing and a pair of output terminals disposed on a first surface of the housing. The bus bar has the plurality of terminal connections connected to the output terminals of each power storage device, and a linking part connecting the plurality of terminal connections. Each terminal connection part has a first part connected to each output terminal and a second part continuous from the first part and extending along a second surface spreading in a direction intersecting the first surface of the housing. Each linking part has a third part that connects the second parts of the adjacent terminal connections to each other.

Abstract: A battery in which an electrode tab group is less likely to be damaged is provided. The battery disclosed herein includes an exterior body, a sealing plate, an electrode body, an electrode body holder, a positive electrode terminal, a negative electrode terminal, a positive electrode current collector, and a negative electrode current collector. The electrode body is fixed to the inner wall surface of the electrode body holder.

Abstract: According to the present disclosure, a secondary battery in which a gas discharge valve has excellent operational stability is provided. A battery case of the secondary battery disclosed herein includes a flat rectangular sealing plate, and a gas discharge valve provided in the sealing plate. In addition, in the secondary battery, a thickness T1 of the sealing plate, a length L1 of a short side of the sealing plate, a length L2 of a long side of the sealing plate, and a length L3 of the gas discharge valve in a short side direction satisfy expression (1) represented by T1/L1?0.1, expression (2) represented by L2/L1?6, and expression (3) represented by L3/L1?0.4. As a result, when an internal pressure of the case rises to a desired pressure, the sealing plate is easily bent and deformed, so that the gas discharge valve can be stably operated by the bending deformation.

Abstract: According to the present disclosure, there is provided a sealing plate equipped with a gas discharge valve that reduces processing load and work hardening during molding. A gas discharge valve of a sealing plate 1 disclosed herein has a flat plate-shaped base portion and a protruding portion protruding from a first surface of the base portion in a first direction, an annular thin-walled portion having a thickness smaller than the thickness of the protruding portion is provided around the protruding portion, and a first surface of the thin-walled portion is substantially on the same surface as the first surface of the base portion. In the gas discharge valve having the above configuration, the total amount of metal that is plastically deformed is reduced by limiting the formation region of the thin-walled portion to the periphery of the protruding portion.

Abstract: A battery pack includes: a plurality of battery modules disposed adjacent to each other in a first direction inside a pack case, each of the plurality of battery modules including a plurality of battery cells disposed side by side in a second direction, the second direction being orthogonal to the first direction; and a side-frame disposed between the battery modules disposed adjacent to each other in the first direction inside the pack case. The side-frame includes two side-walls and a joint. The two side-walls elastically press side-surfaces, in the first direction, of the battery modules disposed adjacent to each other. The side-frame has a long-length shape with a U-shaped cross section. In a state where the side-frame is removed from the battery modules disposed adjacent to each other, a distance between the two side-walls of the side-frame becomes larger as the two side-walls go away toward opposite the joint.

Abstract: The present disclosure provides a sealing plate including a gas release vent capable of suppressing scattering of a metallic fragment during activation. A gas release vent of a sealing plate disclosed herein includes: a base portion with a flat plate shape; a thin portion which is thinner than the base portion; a groove portion formed in the thin portion; and a valve element formed inside the groove portion. In addition, the groove portion has a remaining portion which is a region with a larger remaining thickness as compared to another region of the groove portion. The remaining portion of the groove portion is formed in a region including one intersection point among two intersection points where a straight line which passes a center of the gas release vent and which extends in a short-side direction of the sealing plate intersects the groove portion with the approximately annular shape.

Abstract: A power storage device includes: a housing having a terminal arrangement part; a pair of output terminals provided in the terminal arrangement part; an electrode assembly housed in the housing; a pair of current collecting parts that electrically connect the electrode assembly and the pair of output terminals; and an insulating electrode assembly holder that has contact with a pair of first surfaces of the electrode assembly facing each other in first direction X in which the pair of current collecting parts are arranged, is fixed to the housing, and sandwiches the electrode assembly in first direction X.

Abstract: A power storage module includes a plurality of power storage devices and a bus bar electrically connecting the plurality of power storage devices. Each power storage device has a housing and a pair of output terminals disposed on a first surface of the housing. The bus bar has the plurality of terminal connections connected to the output terminals of each power storage device, and a linking part connecting the plurality of terminal connections. Each terminal connection part has a first part connected to each output terminal and a second part continuous from the first part and extending along a second surface spreading in a direction intersecting the first surface of the housing. Each linking part has a third part that connects the second parts of the adjacent terminal connections to each other.

Abstract: A battery pack includes: a plurality of battery modules disposed adjacent to each other in a first direction inside a pack case, each of the plurality of battery modules including a plurality of battery cells disposed side by side in a second direction, the second direction being orthogonal to the first direction; and a side-frame disposed between the battery modules disposed adjacent to each other in the first direction inside the pack case. The side-frame includes two side-walls and a joint. The two side-walls elastically press side-surfaces, in the first direction, of the battery modules disposed adjacent to each other. The side-frame has a long-length shape with a U-shaped cross section. In a state where the side-frame is removed from the battery modules disposed adjacent to each other, a distance between the two side-walls of the side-frame becomes larger as the two side-walls go away toward opposite the joint.

Abstract: An electric vacuum cleaner is equipped with a dust collection unit (20) that can be detachably installed in the air passage en route from a suction unit to an electric fan of the cleaner. The dust collection unit (20) comprises a dust collecting case (21) for accumulating dust sucked in, a lid member (32) that can be opened to discharge the accumulated dust; and a lock mechanism (clamp lever) (33) for locking the lid member 32 tightly closed. The dust collection unit (20) is further provided with a hand grip (24), arranged to face said user, thereby facilitating a user to hold the dust collection unit when discharging dust from the bottom of the dust collecting case. Further, a hinge (31) is arranged at a position which is adjacent to said bottom (32) of said dust collecting case (21) facing the user holding the hand grip. Furthermore, a lock mechanism (33) is arranged near the periphery of the lid member (32) and at a position opposite to the hinge.

Abstract: An electric vacuum cleaner is equipped with a dust collection unit (20) that can be detachably installed in the air passage en route from a suction unit to an electric fan of the cleaner. The dust collection unit (20) comprises a dust collecting case (21) for accumulating dust sucked in, a lid member (32) that can be opened to discharge the accumulated dust; and a lock mechanism (clamp lever) (33) for locking the lid member 32 tightly closed. The dust collection unit (20) is further provided with a hand grip (24), arranged to face said user, thereby facilitating a user to hold the dust collection unit when discharging dust from the bottom of the dust collecting case. Further, a hinge (31) is arranged at a position which is adjacent to said bottom (32) of said dust collecting case (21) facing the user holding the hand grip. Furthermore, a lock mechanism (33) is arranged near the periphery of the lid member (32) and at a position opposite to the hinge.

Abstract: An electric vacuum cleaner is equipped with a dust collection unit (20) that can be detachably installed in the air passage en route from a suction unit to an electric fan of the cleaner. The dust collection unit (20) comprises a dust collecting case (21) for accumulating dust sucked in, a lid member (32) that can be opened to discharge the accumulated dust; and a lock mechanism (clamp lever) (33) for locking the lid member 32 tightly closed. The electric vacuum cleaner is further provided with a lid opening mechanism (lid opening stick (35) for forcibly opening the lid member (32) in cooperation with the lock mechanism locking the lid member. Even when the sealing pressure of the packing is high or when the accumulated dust does not weigh on the lid member because the dust is compacted on the inner wall of the dust collecting case, the lid member can be opened without difficulty to discharge the dust, without opening it by hand. Thus, the user can avoid handling unsanitary dust.

Abstract: An electric vacuum cleaner is equipped with a dust collection unit (20) that can be detachably installed in the air passage en route from a suction unit to an electric fan of the cleaner. The dust collection unit (20) comprises a dust collecting case (21) for accumulating dust sucked in, a lid member (32) that can be opened to discharge the accumulated dust; and a lock mechanism (clamp lever) (33) for locking the lid member 32 tightly closed. The electric vacuum cleaner is further provided with a lid opening mechanism (lid opening stick (35) for forcibly opening the lid member (32) in cooperation with the lock mechanism locking the lid member. Even when the sealing pressure of the packing is high or when the accumulated dust does not weigh on the lid member because the dust is compacted on the inner wall of the dust collecting case, the lid member can be opened without difficulty to discharge the dust, without opening it by hand. Thus, the user can avoid handling unsanitary dust.

Abstract: An electric vacuum cleaner is equipped with a dust collection unit (20) that can be detachably installed in the air passage en route from a suction unit to an electric fan of the cleaner. The dust collection unit (20) comprises a dust collecting case (21) for accumulating dust sucked in, a lid member (32) that can be opened to discharge the accumulated dust; and a lock mechanism (clamp lever) (33) for locking the lid member 32 tightly closed. The electric vacuum cleaner is further provided with a lid opening mechanism (lid opening stick (35) for forcibly opening the lid member (32) in cooperation with the lock mechanism locking the lid member. Even when the sealing pressure of the packing is high or when the accumulated dust does not weigh on the lid member because the dust is compacted on the inner wall of the dust collecting case, the lid member can be opened without difficulty to discharge the dust, without opening it by hand. Thus, the user can avoid handling unsanitary dust.

Abstract: An electric vacuum cleaner is equipped with a dust collection unit (20) that can be detachably installed in the air passage en route from a suction unit to an electric fan of the cleaner. The dust collection unit (20) comprises a dust collecting case (21) for accumulating dust sucked in, a lid member (32) that can be opened to discharge the accumulated dust; and a lock mechanism (clamp lever) (33) for locking the lid member 32 tightly closed. The electric vacuum cleaner is further provided with a lid opening mechanism (lid opening stick (35) for forcibly opening the lid member (32) in cooperation with the lock mechanism locking the lid member. Even when the sealing pressure of the packing is high or when the accumulated dust does not weigh on the lid member because the dust is compacted on the inner wall of the dust collecting case, the lid member can be opened without difficulty to discharge the dust, without opening it by hand. Thus, the user can avoid handling unsanitary dust.