A novel battery container that can be obtained by welding plated steel sheets, has sufficient sealing ability over a long period of time, and is able to keep the base material of the plated steel sheets from being exposed and eluting into the electrolyte solution is provided. That is, a battery case comprised of a container body and a container lid, wherein the container body and the container lid are each comprised of a plated steel sheet, a joint part between the container and the container lid is comprised of a plating welded part containing a main constituent component of the plating of the plated steel sheet in 60 mass % or more and a steel sheet welded part containing the main constituent component of the plating in less than 60 mass %, and the plating welded part has a length of 0.5 ?m or more and less than 1.0 mm in a joint longitudinal direction.

A laminated body pressing apparatus, which can restrain damage of a first outer ridge portion or a second outer ridge portion of a positive electrode plate during roller-pressing and can restrain damage of a strip-shaped first separator of a strip-shaped negative electrode body on a positive electrode plate side, includes a first press roller, a second press roller disposed parallel to the first press roller and spaced apart from the first press roller by a roller gap, and a metal plate feeding unit to feed a strip-shaped metal plate extending in a conveyance direction to the roller gap. The apparatus roller-presses the positive electrode plate and the strip-shaped negative electrode body by the first press roller and the second press roller in a state where the strip-shaped metal plate fed by the metal plate feeding unit is placed on the positive electrode plate placed on the strip-shaped negative electrode body.

A laminated body pressing apparatus, which can restrain damage of a first outer ridge portion or a second outer ridge portion of a positive electrode plate during roller-pressing and can restrain damage of a strip-shaped first separator of a strip-shaped negative electrode body on a positive electrode plate side, includes a first press roller, a second press roller disposed parallel to the first press roller and spaced apart from the first press roller by a roller gap, and a metal plate feeding unit to feed a strip-shaped metal plate extending in a conveyance direction to the roller gap. The apparatus roller-presses the positive electrode plate and the strip-shaped negative electrode body by the first press roller and the second press roller in a state where the strip-shaped metal plate fed by the metal plate feeding unit is placed on the positive electrode plate placed on the strip-shaped negative electrode body.

A miniature electrochemical cell of a primary or a secondary chemistry with a total volume that is less than 0.5 cc is described. The cell has a casing comprising an annular sidewall supported on a lower plate opposite an upper closure plate. The upper plate has a sealed electrolyte fill port. A current collector having an opening aligned with the fill port contacts an inner surface of the upper plate. An anode active material contacts the lower plate, and a cathode active material contacts the upper closure plate. A dielectric material coats the lower open end of the annular sidewall and a portion of the inner surface of the sidewall. A glass seals the dielectric material to the lower plate. An electrolyte contacts the electrode assembly. The cathode active material contacting the current collector has an opening aligned with the current collector opening and the electrolyte fill port.

A battery box includes end plates, side plates, and welding members. One of the end plates is provided between two adjacent side plates. The end plates and the side plates are connected to one another to enclose a cavity of the battery box. The welding members are formed by bending an end portion of a side plate or an end portion of an end plate multiple times. The end portion of the side plate and the end portion of the end plate are configured to implement the connection of the side plates and the end plates to one another to enclose the cavity of the battery box. The welding members are configured to be welded to a corresponding side plate.

An electric generator including a number of electric accumulators and at least one heat-sink device using a phase-change material configured to pick up the excessive thermal energy produced by one of the electric accumulators and change phase in order to absorb a large quantity of thermal energy in the form of latent heat.

The embodiments of this application provide a battery cell, a battery, an electrical device, and a battery cell manufacturing method and device, which pertains to the technical field of batteries. The battery cell includes an electrode assembly, a housing, an end cover assembly, and a support piece. The electrode assembly includes a main body and tabs. The housing has an opening and is used to accommodate the electrode assembly. The end cover assembly is used to cover the opening. The support piece is located between the main body and the end cover assembly, the tabs are bent around the support piece, and the support piece is configured to prevent the main body from moving along a direction facing the end cover assembly.

A battery terminal bushing is disclosed. The battery terminal bushing comprises a body having an insertion end and an exterior end opposite the insertion end. One or more sealing rings surround the body between the insertion end and the exterior end. A terminal post connector segment is provided on the insertion end of the body. An anti-torque pattern is provided on one or more surfaces of the body configured to engage and be contained within the battery housing material. A lead acid battery comprising the battery terminal bushing is also disclosed.

An energy storage device includes a case, an electrode assembly housed in the case, a current collector arranged between the electrode assembly and a lid of the case in Z-axis direction, and an electrode terminal fixed to the lid. The current collector has a terminal connecting portion connected to the electrode terminal and an electrode connecting portion connected to the electrode assembly. The terminal connecting portion and the electrode connecting portion are arranged side by side in X-axis direction intersecting with the Z-axis direction, and a thickness of the electrode connecting portion is smaller than a thickness of the terminal connecting portion.

This invention relates to polymer-based electrodes comprising at least one layer containing: a continuous, solid and porous electroactive polymer material, and liquid electrolyte present in the pores of the electroactive polymer material. As a result of the modified morphology of the polymer layer thin-film charge-storage devices using these polymer-based electrodes exhibit improved charge-storage and current output and enable manufacturing of a gradual continuum between batteries and supercapacitors. In addition, the invention relates to methods of producing the above polymer-based electrodes and thin-film charge-storage devices.