Abstract: The present disclosure provides a battery module having more improved safety than the conventional battery pack and capable of protecting the battery cells more reliably. The current value at which a cell blocking portion CB inside each of a plurality of battery cells BC interrupts a current path inside the battery cell BC is larger than the current value at which the module fuse MF connected in series to the module terminals MT and the plurality of battery cells BC blows out.

Abstract: An electricity storage block includes: an element stacked body in which a plurality of square electricity storage elements is stacked and arranged such that wide surfaces of the adjacent square electricity storage elements are opposed to each other; and a pressing device that presses the element stacked body toward the thermally-conductive sheet arranged on the heat transfer plate. The element stacked body includes holders having wide surface abutment parts in abutment with one of the wide surfaces in a pair in at least the predetermined square electricity storage element. The outer surfaces of the bottom plates of the square electricity storage elements are set as heat transfer surfaces thermally connected to the heat transfer plate via the thermally-conductive sheet. The heat-transfer surfaces protrude toward the heat transfer plate more than the end surfaces of the wide surface abutment parts at the heat transfer plate side.

Abstract: Provided is a battery module capable of suppressing failures in accurate detection of the state of battery cells due to the effects of unwanted radiation from the battery cells. A battery module 30 includes a plurality of battery cells 20 that are stacked and disposed and a wiring member 50 to detect the state of the plurality of battery cells 20. In the wiring member 50, an insulating base material 52, a wiring layer 53 disposed on one surface 52a side of the base material 52 and including a plurality of detection lines 53a to detect the state of the plurality of battery cells 20, and a ground layer 55 disposed in a position corresponding to at least the wiring layer 53, on the other surface 52b side of the base material 52 are stacked.

Abstract: This secondary cell module has: a plurality of unit cells, each having a pair of positive and negative electrode terminals; a first bus bar providing an electrical connection between unit cells; and a second bus bar disposed on at least two unit cells of the plurality of unit cells and electrically connected to an external terminal. In addition, the present invention is characterized in that the second bus bar has a first metal member connected to the positive or negative electrode terminal, a second metal member connected to the external terminal, a third metal member connected to a voltage detection terminal, a first linkage member connecting the first metal member to the second metal member, and a second linkage member connecting the first metal member to the third metal member, and the first linkage member and the second linkage member are connected to each other via the first metal member.

Abstract: Provided is an assembled battery which is downsized and in which a fastening force between a busbar and an external terminal cable at a fixing part is improved. Provided is an assembled battery including: a group of cells in which a plurality of cells, each having electrode terminals, is stacked; plate-shaped members arranged at ends of the group of cells; and cell holders arranged between the plate-shaped members and the group of cells, in which each of the cell holders is provided with a terminal fixing part of the assembled battery, and each of the plate-shaped members has a fitting part to be fitted to the terminal fixing part.

Abstract: Provided is a battery module capable of improving the safety as compared with the conventional one. The battery module includes a plurality of battery cells, and busbars 10 connecting to external terminals of the battery cells. The busbars 10 include a busbar, the busbar has a pair of terminal portions 11 and 12, a current-carrying portion 13 connecting the pair of terminal portions 11 and 12, and a fuse 14 placed at the current-carrying portion 13. The current-carrying portion 13 surrounds the fuse 14.

Abstract: Provided is an assembled battery which is downsized and in which a fastening force between a busbar and an external terminal cable at a fixing part is improved. Provided is an assembled battery including: a group of cells in which a plurality of cells, each having electrode terminals, is stacked; plate-shaped members arranged at ends of the group of cells; and cell holders arranged between the plate-shaped members and the group of cells, in which each of the cell holders is provided with a terminal fixing part of the assembled battery, and each of the plate-shaped members has a fitting part to be fitted to the terminal fixing part.

Abstract: Provided is a battery pack capable of preventing a damage to the insulation layer on the bottom face of each of battery cells and improving the cooling performance for the battery cells as compared with the conventional configuration. A battery pack includes a plurality of battery cells 10, a plurality of cell holders 20, a plurality of plates 30, an insulation layer 40 on the entire bottom face 10b of each battery cell 10, a heat-transfer sheet 50, and a cooler 60 to cool the battery cells 10 via the heat-transfer sheet 50. The lower end 30b of each plate 30 protrudes downward from the lower face 40b of each insulation layer 40. The cell holder 20 has supports that support the side faces of the battery cell 10 and an opening 22 that exposes the entire lower face 40b of the insulation layer 40 to the heat-transfer sheet 50.

Abstract: The present disclosure provides a battery module having more improved safety than the conventional battery pack and capable of protecting the battery cells more reliably. The current value at which a cell blocking portion CB inside each of a plurality of battery cells BC interrupts a current path inside the battery cell BC is larger than the current value at which the module fuse MF connected in series to the module terminals MT and the plurality of battery cells BC blows out.

Abstract: An assembled battery that can be easily assembled and that has high reliability is provided. An assembled battery includes secondary batteries with a flat prismatic shape that are stacked in a thickness direction (X-axis direction), spacer members that are stacked alternately with the secondary batteries, and side plates that extend in a stacking direction of the secondary batteries and face side surfaces of the spacer members along the stacking direction. The spacer member includes an engagement part to be engaged with the side plate in a manner that sliding is possible in the stacking direction (X-axis direction).

Abstract: Provided is a battery module capable of efficiently arranging wires such as voltage detection wires and temperature detection wires, and realizing the miniaturization thereof. The electrical connecting member housing case of the present invention includes a wire housing space formed from a bottom part, a wall part, and a lid part, wherewith the wall part includes an outer wall, an end face, and an inner wall facing the wires, and wherein the lid part is connected to the wall part via a hinge part provided to the inner wall or the end face.

Abstract: A storage module in which a plurality of storage elements are electrically connected by bus bars includes: a temperature sensor which contacts a surface of the storage element and detects a temperature of the storage element; a pressing member which presses the temperature sensor to the storage element; and a regulation member which regulates a movement of the temperature sensor in a direction orthogonal to a pressing direction of the pressing member.

Abstract: An assembled battery that can be easily assembled and that has high reliability is provided. An assembled battery includes secondary batteries with a flat prismatic shape that are stacked in a thickness direction (X-axis direction), spacer members that are stacked alternately with the secondary batteries, and side plates that extend in a stacking direction of the secondary batteries and face side surfaces of the spacer members along the stacking direction. The spacer member includes an engagement part to be engaged with the side plate in a manner that sliding is possible in the stacking direction (X-axis direction).

Abstract: A secondary battery module includes an annular member making a tip end of a connection terminal of a bus bar and a tip end of a voltage detection terminal inserted therein in an axial direction to be aligned with each other in terms of directions. The annular member includes an elastic deformation portion biasing the connection terminal and the voltage detection terminal in directions of making the connection terminal and the voltage detection terminal press each other. Accordingly, reliability to deal with an external cause is high, and an assembling operation is facilitated.

Abstract: An electricity storage block includes: an element stacked body in which a plurality of square electricity storage elements is stacked and arranged such that wide surfaces of the adjacent square electricity storage elements are opposed to each other; and a pressing device that presses the element stacked body toward the thermally-conductive sheet arranged on the heat transfer plate. The element stacked body includes holders having wide surface abutment parts in abutment with one of the wide surfaces in a pair in at least the predetermined square electricity storage element. The outer surfaces of the bottom plates of the square electricity storage elements are set as heat transfer surfaces thermally connected to the heat transfer plate via the thermally-conductive sheet. The heat-transfer surfaces protrude toward the heat transfer plate more than the end surfaces of the wide surface abutment parts at the heat transfer plate side.

Abstract: An electricity storage block includes: an element stacked body in which a plurality of square electricity storage elements is stacked and arranged such that wide surfaces of the adjacent square electricity storage elements are opposed to each other; and a pressing device that presses the element stacked body toward the thermally-conductive sheet arranged on the heat transfer plate. The element stacked body includes holders having wide surface abutment parts in abutment with one of the wide surfaces in a pair in at least the predetermined square electricity storage element. The outer surfaces of the bottom plates of the square electricity storage elements are set as heat transfer surfaces thermally connected to the heat transfer plate via the thermally-conductive sheet. The heat-transfer surfaces protrude toward the heat transfer plate more than the end surfaces of the wide surface abutment parts at the heat transfer plate side.

Abstract: A storage module in which a plurality of storage elements are electrically connected by bus bars includes: a temperature sensor which contacts a surface of the storage element and detects a temperature of the storage element; a pressing member which presses the temperature sensor to the storage element; and a regulation member which regulates a movement of the temperature sensor in a direction orthogonal to a pressing direction of the pressing member.

Abstract: A secondary battery module includes a cell block in which a plurality of square batteries are layered, and includes: a pair of end plates arranged to respectively face one side and another side of the cell block in a layering direction; and a pair of side frames and arranged to respectively face one side and another side in a cell width direction perpendicular to the layering direction of the cell block, and in the one side and another side in the cell width direction, one end portion being engaged with one end plate at the one side in the layering direction, and other end portion being engaged with other end plate at another side in the layering direction.

Abstract: A secondary battery module includes an annular member making a tip end of a connection terminal of a bus bar and a tip end of a voltage detection terminal inserted therein in an axial direction to be aligned with each other in terms of directions. The annular member includes an elastic deformation portion biasing the connection terminal and the voltage detection terminal in directions of making the connection terminal and the voltage detection terminal press each other. Accordingly, reliability to deal with an external cause is high, and an assembling operation is facilitated.

Abstract: An electricity storage block includes: an element stacked body in which a plurality of square electricity storage elements is stacked and arranged such that wide surfaces of the adjacent square electricity storage elements are opposed to each other; and a pressing device that presses the element stacked body toward the thermally-conductive sheet arranged on the heat transfer plate. The element stacked body includes holders having wide surface abutment parts in abutment with one of the wide surfaces in a pair in at least the predetermined square electricity storage element. The outer surfaces of the bottom plates of the square electricity storage elements are set as heat transfer surfaces thermally connected to the heat transfer plate via the thermally-conductive sheet. The heat-transfer surfaces protrude toward the heat transfer plate more than the end surfaces of the wide surface abutment parts at the heat transfer plate side.