Abstract: A battery includes a plurality of secondary batteries, a casing including a lower case and an upper case, and a plurality of separators interposed between corresponding secondary batteries. Each separator includes a first stopper in a lower part, a second stopper in an upper part, and a cooling passage between the secondary batteries and between the first stopper and the second stopper. The casing includes a face opposing the lateral faces of the secondary battery and including an opening opposing the cooling passage.

Abstract: According to one embodiment, a battery includes a battery group, a case, a metal plate, an insulator and an electrical connection path. The battery group includes a plurality of batteries, and each of the batteries includes an electrode group and a metal exterior container made in which the electrode group is housed. The metal plate is provided between the battery group and the base and forms a clearance between the metal plate and the base. The insulator has plasticity and an electrical insulating property, and is sandwiched between the battery group and the metal plate. The insulator electrically insulates between the exterior container of each of the batteries and the metal plate. The electrical connection path electrically connects the metal plate to the base.

Abstract: A battery includes a plurality of secondary batteries, a casing including a lower case and an upper case, and a plurality of separators interposed between corresponding secondary batteries. Each separator includes a first stopper in a lower part, a second stopper in an upper part, and a cooling passage between the secondary batteries and between the first stopper and the second stopper. The casing includes a face opposing the lateral faces of the secondary battery and including an opening opposing the cooling passage.

Abstract: A battery pack includes a plurality of battery cells. The battery cells are aligned in a first direction, and each include a positive electrode terminal having one of a male structure and a female structure of a shape to be fitted to the male structure by press-fitting, and a negative electrode terminal having the other of the male structure and the female structure.

Abstract: A battery pack includes a plurality of battery cells, a pipe, a bar, and an insulating plate, for example. The battery cells are aligned in a first direction and each include an opening. The pipe is hollow and inserted into each opening in the first direction. The bar is inserted into a hollow of the pipe. The insulating plate is provided between opposing faces of the battery cells.

Abstract: A battery cell comprises a chassis having a first end side and a second end side. A first electrode terminal is exposed on the first end side of the chassis. A second electrode terminal is exposed on the second end side of the chassis. And a third electrode terminal is exposed on the first end side. The first electrode terminal and the third electrode terminal have a same polarity. The first electrode terminal and the second electrode terminal have an opposite polarity.

Abstract: According to one embodiment, a connecting busbar includes a pair of first connecting portions provided on first end portions, a pair of second connecting portions provided on second end portions, and a coupling portion that couples the first end portions and the second end portions. Each of the first connecting portions and the second connecting portions is provided with projecting portions that project toward each of positive electrode terminals and negative electrode terminals, and a connecting opening portion provided on a tip end of the projecting portion. The projecting portion is joined to the positive electrode terminal and the negative electrode terminal by performing welding such as laser welding on a thinned portion in a state that a surface of a curved portion contacts with the positive electrode terminal and the negative electrode terminal while the connecting opening approaches the positive electrode terminal and the negative electrode terminal.

Abstract: According to one embodiment, a battery includes a package can, an electrode group, a lid and a plurality of homopolar external terminals. The electrode group is provided in the package can and comprises a positive electrode and a negative electrode. The lid is provided to an opening part of the package can. The plurality of homopolar external terminals are provided on the lid and electrically connected to the positive electrode or negative electrode.

Abstract: A secondary battery apparatus including a housing, a plurality of battery cells housed in the housing, and adhesive agent which adheres to the battery cells. In the secondary battery apparatus, the housing includes an inner surface facing the battery cells, the battery cells each has an outer can whose main component is metal, and the housing includes resin as a main component of its constituent element.