Abstract: A cover body has: a plurality of divided cover portions arranged side by side in a Y axis direction; an elastic deformation portion extending between the divided cover portions adjacent to each other; a first connection portion provided in a first divided cover portion disposed at one end portion in the Y axis direction, the first connection portion being connected to the attachment-target member so as to be fixed in the Y axis direction; a second connection portion provided in a second divided cover portion disposed at the other end portion in the Y axis direction, the second connection portion being connected to the attachment-target member so as to be fixed in the Y axis direction; and a third connection portion disposed between the first connection portion and the second connection portion and connected to the attachment-target member so as to be slidable in the Y axis direction.

Abstract: A partition wall member includes a main body portion and a plurality of protrusions. The plurality of protrusions protrude from the main body portion toward at least one battery cell of the plurality of battery cells. Each of the plurality of protrusions has a first end portion, a second end portion, and an intermediate portion. The first end portion and the second end portion face each other in a second direction orthogonal to the first direction. The intermediate portion is located between the first end portion and the second end portion. A cooling medium path along the second direction is formed between the plurality of protrusions. When viewed in the second direction, a cross sectional area of the cooling medium path is decreased from the first end portion toward the intermediate portion and is increased from the intermediate portion toward the second end portion.

Abstract: A battery module includes: a duct; and an attachment-target member to which the duct is attached. The attachment-target member has a first wall portion and the duct has a second wall portion. The first wall portion is provided with a claw portion. The second wall portion is provided with a groove portion. The groove portion includes a first segment portion and a second segment portion, the first segment portion extending in the Y axis direction, the claw portion being disposed in the first segment portion, the first segment portion anchoring the claw portion in the Z axis direction, the second segment portion extending in a direction intersecting the Y axis direction, the second segment portion being connected to the first segment portion, the second segment portion allowing the claw portion to enter the first segment portion when attaching the duct to the attachment-target member.

Abstract: A battery module includes: a stack including a plurality of battery cells arranged side by side in a first direction; and a cover member having an insulating property, the cover member being provided to cover the stack from a side opposite to the electrode terminal. The cover member includes a first drainage portion located at a center portion of the cover member in a second direction orthogonal to the first direction, and a second drainage portion located at each of both end portions of the cover member in the second direction.

Abstract: A battery module includes: a stack including a plurality of battery cells arranged side by side in a first direction. A reference plane for positioning the stack in a direction orthogonal to the first direction is provided. The cover member includes a biasing portion that biases the stack in a direction away from the cover member. The biasing portion biases the stack to press the stack against the reference plane.

Abstract: A battery module includes: a plurality of battery cells arranged side by side in a first direction, each of the plurality of battery cells having a prismatic shape; two restraint members that each restrain the plurality of battery cells along the first direction, each of the two restraint members being provided to be arranged side by side with the plurality of battery cells in a second direction orthogonal to the first direction; and a coupling member in a form of a strip, the coupling member extending in the second direction at an intermediate portion in the first direction to couple the two restraint members to each other. The coupling member has a first engagement portion and a second engagement portion that are respectively engaged with the two restraint members in directions of sandwiching the two restraint members along the second direction.

Abstract: A first imaginary arc is defined with a first imaginary point as a center, the first imaginary arc including three points that are a center and both ends of a third portion in a second direction orthogonal to a first direction, the first imaginary point being located on a fourth portion side with respect to a first imaginary straight line that connects the both ends of the third portion in the first direction. A second imaginary arc is defined as a center, the second imaginary arc including three points that are a center and both ends of the fourth portion in the second direction, the second imaginary point being located on the third portion side with respect to a second imaginary straight line that connects the both ends of the fourth portion in the first direction.

Abstract: A battery module includes: a plurality of battery cells arranged side by side in a first direction, each of the plurality of battery cells having a prismatic shape; and two restraint members that restrains the plurality of battery cells along the first direction, each of the two restraint members being provided to be arranged side by side with the plurality of battery cells in a second direction orthogonal to the first direction. Each of the two restraint members includes a plate-shaped portion extending in a plane direction including the first direction and a third direction orthogonal to the first direction and the second direction. The plate-shaped portion is constituted of a metal member having a rolling line along the third direction, and the plate-shaped portion is provided with an opening.

Abstract: A plate-shaped member includes a flat surface portion, a flange portion, and a transition portion, the flange portion being provided at an end portion of the plate-shaped member, the flange portion protruding from the flat surface portion in the first direction, the transition portion continuously transitioning from the flat surface portion to the flange portion. The flat surface portion, the transition portion, and the flange portion are provided to be arranged side by side in the second direction.

Abstract: A terminal member is electrically connected to at least one battery cell of a plurality of battery cells, and includes a fuse portion. An arc interruption portion is located in a discharging space in which an arc generated at a time of melting and disconnection of the fuse portion extends, and is provided to extend in a direction substantially orthogonal to a direction in which the fuse portion and the discharging space are arranged side by side.

Abstract: A battery module includes: a duct extending in a Y axis direction in which a plurality of battery cells are stacked, to form a flow space; and an attachment-target member to which the duct is attached. The attachment-target member has a first wall portion and a pair of second wall portions each rising from the first wall portion in a Z axis direction. The duct is disposed between the pair of second wall portions. The duct has: a third wall portion facing the first wall portion in the Z axis direction with the flow space being interposed therebetween; and a pair of fourth wall portions extending, in the Z axis direction toward the first wall portion, from both end portions of the third wall portion in the X axis direction, the pair of fourth wall portions respectively facing the pair of second wall portions in the X axis direction.

Abstract: A battery module includes: a plurality of stacked battery cells; a first cover body and a second cover body provided to cover the plurality of battery cells in a direction orthogonal to a stacking direction of the battery cells; a pair of binding bars that restrain the plurality of battery cells in the stacking direction of the battery cells; and a retainer connected to each of the binding bars. The first cover body has a first overlapping portion. The second cover body has a second overlapping portion disposed between each of the battery cells and the first overlapping portion and overlapping with the first overlapping portion in a direction orthogonal to the stacking direction of the battery cells. The first cover body is disposed between each of the battery cells and the retainer in the direction orthogonal to the stacking direction of the battery cells.

Abstract: A plurality of battery cells are arranged side by side in a first direction and each have a prismatic shape. A case accommodates the plurality of battery cells, and supports the plurality of battery cells in at least a first direction, and forms a unit including the plurality of battery cells. The case includes a first end portion and a second end portion arranged side by side and facing each other in a second direction orthogonal to the first direction. The first end portion is provided with a biasing portion that is deformed, when one battery cell of the plurality of battery cells is inserted into the case, to bias the battery cell toward the second end portion of the case. The second end portion is provided with a reference surface to position the battery cell in the second direction.

Abstract: A terminal member is electrically connected to at least one battery cell of a plurality of battery cells. A holder is located at an end portion of a stack and can fix the terminal member by inserting the terminal member into the holder in a first direction. One of the terminal member and the holder is provided with a first protrusion protruding in a second direction orthogonal to the first direction. The other of the terminal member and the holder is provided with a first recess fitted to the first protrusion.

Abstract: A battery module includes: a plurality of battery cells stacked in a Y axis direction; a cover body that covers the plurality of battery cells in a Z axis direction; and a duct. The duct has: a cylindrical portion to which a hose can be fitted, the cylindrical portion extending, in the Y axis direction in a form of in a cylinder, from one end portion of a duct main body portion in the Y axis direction so as to have a tip with an opening; and a projection with which an end portion of the hose can be brought into abutment, the projection protruding from an outer peripheral surface of the cylindrical portion at a position away from the opening of the cylindrical portion in the Y axis direction. The cover body has an anchoring portion anchored to the projection in the Z axis direction.

Abstract: A battery module includes a plurality of units and a restraint member. The plurality of units are arranged side by side in a first direction. The restraint member restrains the plurality of units in the first direction. Each of the plurality of units includes a plurality of battery cells and a case. The plurality of battery cells are arranged side by side in the first direction and each of the plurality of battery cells has a prismatic shape. The case accommodates the plurality of battery cells and supports the plurality of battery cells in the first direction.

Abstract: Each of a plurality of units includes a plurality of battery cells and a supporting member. The plurality of battery cells are arranged side by side in the first direction and each of the plurality of battery cells has a prismatic shape. The supporting member supports the plurality of battery cells. Each of the plurality of battery cells has a housing having an upper surface on which an electrode terminal is disposed and a lower surface facing the upper surface along a second direction orthogonal to the first direction. When each of the plurality of units is placed on the first plane, the supporting member is capable of supporting the plurality of battery cells such that the second direction is substantially parallel to a normal direction of the first plane and the electrode terminal is oriented in a direction away from the first plane.

Abstract: A battery module includes: a plurality of battery cells stacked in a predetermined direction and electrically connected together; a plurality of bus bars that electrically connect the plurality of battery cells together; and a plurality of voltage detection wires each connected to one set of two or more battery cells electrically connected together. According to the battery module, the number of the voltage detection wires is reduced, thereby attaining reduced sizes of the bus bars, productivity improved by improved workability, and reduced cost.

Abstract: A battery module includes: a plurality of battery cells arranged side by side in a first direction, each of the plurality of battery cells having a prismatic shape; and a partition wall portion provided between the plurality of battery cells to secure electrical insulation between the plurality of battery cells. The partition wall portion includes a first partition wall portion and a second partition wall portion, the first partition wall portion and the second partition wall portion being provided alternately, the second partition wall portion having a shape different from a shape of the first partition wall portion, the second partition wall portion forming a cooling space between the second partition wall portion and each of two battery cells located on both sides beside the second partition wall portion in the first direction.

Abstract: A battery module includes: a plurality of battery cells arranged side by side in a first direction, each of the plurality of battery cells having a prismatic shape; a restraint mechanism that restrains the plurality of battery cells in the first direction; and a restraint force adjustment mechanism capable of adjusting a restraint load in the first direction, the restraint load being applied by the restraint mechanism. The restraint force adjustment mechanism includes an operation portion to be operated when adjusting the restraint load. The operation portion is provided on the battery module.