A battery cell for an electric vehicle battery pack is provided. A housing of the battery cell can define a cavity. An electrolyte material can be housed within the cavity. A first polarity terminal of the battery cell can be disposed at an open end of the housing. A first conductive tab can be disposed at a closed end of the housing and electrically coupled with a first polarity portion of the electrolyte material. A conductive rod can extend through a core of the electrolyte material and can include a first end disposed at the closed end of the housing and electrically coupled with the first conductive tab. A receptacle can be electrically coupled with the first polarity terminal and can extend towards the electrolyte material to engage with a second end of the conductive rod at the open end of the housing.

The disclosure relates to the field of new energy lithium battery accessories, and specifically relates to a method for stamping and integrally molding a top cover sheet, a battery top cover structure and a manufacturing method thereof. In the disclosure, the top cover sheet is stamped to mold corresponding holes, and then the top cover sheet is forward stamped, reversely stamped and shaped so as to obtain a battery top cover sheet with a predetermined shape. In the disclosure, an injection molding connecting portion is integrally molded on the battery top cover sheet by a stamping molding process for injection molding of an upper plastic piece, so as to facilitate the manufacture of the top cover sheet and the battery top cover structure.

A battery cell includes a housing, an electrode stack assembly, at least one terminal assembly, and at least two counter-elements associated with the terminal assembly. The electrode stack assembly is arranged in the housing and includes first electrode assemblies and second electrode assemblies. The terminal assembly includes a base part, two terminal elements, and at least two arms, which arms respectively extend between the base part and one of the terminal elements and are configured so as to apply a first force on the terminal elements in the direction of the associated counter-elements. First strip elements or second strip elements are arranged between at least one of the terminal elements and at least one of the counter-elements. The base part forms a connecting element for electrically contacting the battery cell, which connecting element can be contacted from the outside, and which base part is electrically connected to the electrodes.

A laminated all-solid-state secondary battery including: a laminated body in which a positive electrode and a negative electrode are laminated with a solid electrolyte layer interposed therebetween and which includes a side surface including a first side surface exposing the positive electrode current collector layer and a second side surface exposing the negative electrode current collector layer; an outer positive electrode attached to the first side surface; and an outer negative electrode attached to the second side surface, wherein the outer positive electrode is electrically connected to the positive electrode current collector layer, a side end portion of the outer positive electrode is located at a position not facing the negative electrode, the outer negative electrode is electrically connected to the negative electrode current collector layer, and a side end portion of the outer negative electrode is located at a position not facing the positive electrode.

A film-covered battery includes a coverage case having a film covering material and a power generation element contained in the coverage case. The coverage case has a first sealing part that guides a terminal and a second sealing part that does not guide a terminal. The second sealing part is formed on at least one face (face F) with a maximum area among exterior faces of the power generation element. The assembled battery has a third sealing part being a part of the second sealing part and overlapping the power generation element. In the assembled battery, a heat dissipation plate is placed on the face F where the third sealing part is formed. A projection area of the third sealing part and the heat dissipation plate on the face F occupies 40% or more of the face F.

A film-covered battery includes a coverage case having a film covering material and a power generation element contained in the coverage case. The coverage case has a first sealing part that guides a terminal and a second sealing part that does not guide a terminal. The second sealing part is formed on at least one face (face F) with a maximum area among exterior faces of the power generation element. The assembled battery has a third sealing part being a part of the second sealing part and overlapping the power generation element. In the assembled battery, a heat dissipation plate is placed on the face F where the third sealing part is formed. A projection area of the third sealing part and the heat dissipation plate on the face F occupies 40% or more of the face F.

An adhesive film for metal terminals which is intended to be interposed between a metal terminal that is electrically connected to an electrode for a power storage device element and a power storage device outer covering material that seals the power storage device element, in which at least one resin layer is contained in the adhesive film for metal terminals, the resin layer has a melting point of 150° C. to 270° C., inclusive, and the resin layer comprises an elastomer.

In a secondary battery, a lid member and a negative terminal are integrated through a resin. The negative terminal includes a first member and a second member. A first bonded surface of a lower surface of the first member is bonded to a second bonded surface of an upper surface of the second member. The first member includes a projecting portion at an outer peripheral edge of the lower surface of the first member. The second member includes a chamfered portion at an outer peripheral edge of the upper surface of the second member. The projecting portion and the chamfered portion are combined with each other so that the projecting portion contacts the chamfered portion.

A method for manufacturing a battery module includes: forming a stacked structure by stacking a plurality of battery cell assemblies in a first direction; bringing a first end plate in surface contact with a first end of the stacked structure and bringing a second end plate in surface contact with a second of the stacked structure in the first direction; forming electrical connection by bonding electrodes of each battery cells of the plurality of battery cells to each other; and installing a first clamp and a second clamp across the stacked structure in the first direction, fixing first ends of the first clamp and the second clamp to the first end plate, and fixing second ends of the first clamp and the second clamp to the second end plate.

A method for manufacturing a battery module includes: forming a stacked structure by stacking a plurality of battery cell assemblies in a first direction; bringing a first end plate in surface contact with a first end of the stacked structure and bringing a second end plate in surface contact with a second of the stacked structure in the first direction; forming electrical connection by bonding electrodes of each battery cells of the plurality of battery cells to each other; and installing a first clamp and a second clamp across the stacked structure in the first direction, fixing first ends of the first clamp and the second clamp to the first end plate, and fixing second ends of the first clamp and the second clamp to the second end plate.