A battery module 1 includes an array body including a plurality of battery cells held by cell holders and arranged along a predetermined array direction, and elastic members disposed between adjacent battery cells, and a restraint member applying a restraining load to the array body in the array direction. The cell holder has a protrusion protruding in the array direction, and a compression amount of the elastic member between the battery cells is regulated by the protrusion abutting on a cell holder of an adjacent battery cell.

A battery pack includes a pouch cell having electrode tabs extending therefrom, each of the tabs defining perforations, a bus bar in contact with the tabs, and respective agglomerations of mechanically bound solid metal particles each filling one of the perforations to mechanically bind and electrically connect the tabs to the bus bar.

Certain embodiments of the invention relate to the design of three-dimensional battery cells and their incorporation into battery modules and battery packs. The present invention may be particularly advantageous when incorporated into large battery packs, for example, those used in electric vehicles. The unique architecture of the battery cells of certain embodiments of the invention provides improved thermal performance with significant impact on cycle and calendar life when incorporated into a battery pack. Substantially higher pack energy density for a given cell energy density is provided when compared to a conventional cell. Battery cells can be strung together to form modules and packs with whatever series/parallel arrangement required for a particular application. Cooling, if needed, can be incorporated at the module level rather than the individual die level, as is the case with conventional architectures, dramatically reducing the cost of the system.

The present disclosure discloses an electric connector and a battery comprising the same. The electric connector includes a leading-out sheet, and a plurality of connecting sheets welded to the leading-out sheet, each connecting sheet comprising at least two welding portions; wherein the leading-out sheet and each connecting sheet are separate parts. The electric connector according to the present disclosure is convenient in welding, simple in structure, low in process cost, stable and reliable in structure and high in safety.

A flexible rechargeable battery includes a protection substrate including a first terminal and a second terminal, a wiring portion including a first wiring portion and a second wiring portion, a first end of each of the first and second wiring portions being connected to the first and second terminals, respectively, and the first wiring portion and the second wiring portion being adjacent to each other and disposed in parallel, first connecting members, portions of the first wiring portion being inserted into the first connecting members to be electrically connected to the first wiring portion, second connecting members, portions of the second wiring portion being inserted into the second connecting members to be electrically connected to the second wiring portion, and battery cells, each battery cell including a first terminal electrically connected to the first connecting member, and a second terminal electrically connected to the second connecting member.

A battery includes a first power generation element, a first outer cover body which encloses the first power generation element, and a first planar electrode having, as principal surfaces, a first connecting surface and a first protruding surface opposite the first connecting surface. The first connecting surface is electrically connected to the first power generation element. The first outer cover body includes a first covering portion provided with a first opening. The first protruding surface protrudes from the first opening toward an outside of the first covering portion. The first covering portion is joined to at least one of the first planar electrode and the first power generation element.

Battery pack includes: a plurality of chargeable/dischargeable cylindrical cells; battery holder in which the plurality of cylindrical cells are disposed; and thermally conductive resin that closely adheres to cylindrical cells, which are stored in battery holder, in a thermally coupled state above battery holder. Battery holder includes: bottom plate including a plurality of holding grooves in which cylindrical cells are disposed; and partition walls that are disposed between holding grooves and between adjacent cylindrical cells. Partition walls are lower than the diameter of cylindrical cells disposed in holding grooves, thermally conductive resin is disposed between adjacent cylindrical cells above partition walls, and thermally conductive resin interconnects adjacent cylindrical cells.

A battery pack includes a plurality of unit batteries arranged side by side in a first direction, each unit battery including a can accommodating an opening including an electrode assembly having a first electrode plate, a second electrode plate, and a separator between the electrode plates, and a cap plate sealing the opening. The plurality of unit batteries may be arranged side by side in the first direction with all the cap plates exposed in the same direction. The battery pack may further include a protection circuit module adjacent to the cap plate with a circuit board extending in the first direction and a protection device coupled to it, wherein each unit battery further includes a first terminal on a first area of the cap plate and a second terminal on a second area of the cap plate, each coupled to the unit battery and the protection circuit module.

A wiring module is for attachment to a power storage element group in which multiple power storage elements are arranged in a line. The wiring module includes an insulating protector having an electrical wire holding portion that holds electrical wires that detect the state of the power storage elements, and a bending member that is provided at a position connected to the electrical wire holding portion, and has a hinge that is bent in a direction that intersects the electrical wire holding portion. The electrical wires are fixed to the bending member. The bending member has a locked portion that is locked to the insulating protector in a state of being bent by the hinge.

A flexible electrochemical device in which a plurality of electrode assemblies is electrically connected to each other so that the flexible electrochemical device may be repeatedly bent, includes at least two electrode assemblies that are arranged separate from each other and a casing member that packs the at least two electrode assemblies and includes at least two accommodation portions in which electrode assemblies are individually received, and a connecting portion that connects the at least two adjacent accommodation portions where a path between a conductive line that electrically connects at least two electrode assemblies together and an electrolyte is defined in the connecting portion.