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: To prevent an increase in the electrical resistance between a terminal for external connection and a cell terminal of a battery cell of a battery cell group. A battery module 100 includes a battery cell group 10, a pair of end plates 20, a bus bar 30, and a fastening member 40. The end plate 20 includes a recess 21 adapted to partially house the fastening member 40 in a mutually movable manner in one direction (X-direction) corresponding to the stacked direction of the plurality of battery cells 1. The battery module 100 also has a gap S between an inner side wall 21a of the recess 21 and the fastening member 40 in the one direction (X-direction).

Abstract: Provided is a battery module that prevents a new current path that may be formed due to molten metal resulting from a molten and cut fuse, and has better safety than conventional battery modules. A battery module includes: module terminals; a battery cell group including a plurality of battery cells; and a plurality of bus bars connecting the plurality of battery cells of this battery cell group and connecting this battery cell group with the module terminals. At least one of the plurality of bus bars has a fuse. The battery module has a space that is located below the fuse and that allows the molten fuse to fall.

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: 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 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: To prevent an increase in the electrical resistance between a terminal for external connection and a cell terminal of a battery cell of a battery cell group. A battery module 100 includes a battery cell group 10, a pair of end plates 20, a bus bar 30, and a fastening member 40. The end plate 20 includes a recess 21 adapted to partially house the fastening member 40 in a mutually movable manner in one direction (X-direction) corresponding to the stacked direction of the plurality of battery cells 1. The battery module 100 also has a gap S between an inner side wall 21a of the recess 21 and the fastening member 40 in the one direction (X-direction).

Abstract: Provided is a battery module that prevents a new current path that may be formed due to molten metal resulting from a molten and cut fuse, and has better safety than conventional battery modules. A battery module includes: module terminals; a battery cell group including a plurality of battery cells; and a plurality of bus bars connecting the plurality of battery cells of this battery cell group and connecting this battery cell group with the module terminals. At least one of the plurality of bus bars has a fuse. The battery module has a space that is located below the fuse and that allows the molten fuse to fall.