An electrically conductive holder is provided that is suitable for receiving a tablet electrode of a button battery. The holder includes a bottom portion to be fitted coaxially within terminal of a button battery. The holder further includes an upstanding wall portion. The bottom portion is flat and provided with a plurality of apertures through the complete thickness of the bottom portion. At least one group of apertures is distributed at regular angular intervals around the center of the bottom portion, spanning 360°. The strips of solid material of the bottom portion between two adjacent apertures are preferable narrow compared to the dimensions of the adjacent apertures so as to provide a mechanical support for the tablet electrode while also being able to deform under the influence of a volumetric expansion of the electrode.

A button cell configured as a secondary lithium ion battery includes a button cell housing and an electrode separator assembly disposed inside the button cell housing. The button cell housing includes a metal cell cup, the metal cell cup having a cell cup plane region connected to a cell cup lateral surface region, a metal cell top, the metal cell top having a cell top plane region connected to a cell top lateral surface region, and an electrically insulating seal disposed between the cell cup lateral surface region and the cell top lateral surface region. The electrode separator assembly includes a positive electrode formed from a first portion of a first current collector, a negative electrode formed from a first portion of a second current collector, and a separator disposed between the positive electrode and the negative electrode.

A peel off assembly for exposing a safety feature comprising an aversive agent for a battery includes a first adhesive layer adhered to a base layer. Optionally, a layer comprising a colorant is disposed over and coupled to the first adhesive layer. A layer comprising a water-soluble material and an aversive agent is disposed over and coupled to the first adhesive layer. A second adhesive layer is disposed over and coupled to the layer comprising a water-soluble material. A kill strip layer is disposed between the second adhesive layer and the base layer. Optionally, a label is disposed over and coupled to the second adhesive layer. The second adhesive layer is adapted and arranged to release from the layer comprising the water-soluble material, when a peel force is applied such that the second adhesive layer and the kill strip layer are removable from the layer comprising a water-soluble material when the peel force is applied to the second adhesive layer.

A wired circuit board for battery includes a stainless steel layer, an insulating base layer, and a conductor layer sequentially toward one side in the thickness direction. The stainless steel layer is electrically connected to the conductor layer. The stainless steel layer includes a first laser weld portion that can be laser welded. The first laser weld portion is exposed to the one side and the other side in the thickness direction.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case including an inner space accommodating the electrode assembly, and an opening; a cap plate coupled to the case at the opening and including a terminal hole exposing the inner space; an electrode terminal electrically connected to the electrode assembly through the terminal hole and overlapping the cap plate; electrode tabs respectively connected to the first electrode and the second electrode; and an electrolyte solution in the inner space, and at least one electrode tab of the electrode tabs has an inclined portion that is inclined at a first angle with respect to a surface of the electrode assembly facing the at least one electrode tab.

A miniature electrochemical cell of a primary or secondary chemistry with a total volume that is less than 0.5 cc is described. The cell casing comprises an annular sidewall connected to a base plate opposite an upper lid. A sealing glass forms a hermetic glass-to-ceramic seal with a dielectric material contacting a lower portion of the annular sidewall and a glass-to-metal seal with the base plate. Since the glass seals against three surfaces of the annular sidewall, which are the inner and outer sidewall surfaces adjacent to the lower edge, the glass seal is robust enough to withstand the heat generated when the lid is welded to the upper edge of the annular sidewall. The lid has a sealed electrolyte fill port that is axially aligned with an annulus residing between the inner surface of the annular sidewall and the electrode assembly.

A rechargeable battery includes: an electrode assembly including a first electrode tab and a second electrode tab; a case accommodating the electrode assembly and electrically connected to the first electrode tab; a cap assembly including a cap plate coupled to an opening of the case, and a terminal plate coupled to the cap plate in an insulating state and electrically connected to the second electrode tab; and a conductive double-sided adhesive member applied to at least one of a first connection between the first electrode tab and the case and a second connection between the second electrode tab and the terminal plate.

A secondary battery includes: an anode including an anode active material on an anode active material support; a cathode including a cathode active material on a cathode active material support; a separator between the anode and the cathode; an anode guide extending in a first direction from a first region along an edge of the anode active material support; and a cathode guide extending in a second direction from a second region along an edge of the cathode active material support.

A method for producing a battery includes providing a cup-shaped first housing part having a bottom and a side wall, the bottom and the side wall each having an inside and an outside. The method further includes covering the inside of the bottom of the first housing part with an electrically conductive covering, electrically connecting the electrically conductive covering to the bottom of the first housing part by welding, electrically connecting an electric conductor to the electrically conductive covering by welding, and assembling the first housing part and a second housing part to form a housing of the battery, the housing enclosing an interior space that includes a composite body therein. The composite body includes a positive electrode, a negative electrode, a separator, and the electric conductor. The inside of the bottom and the inside of the side wall of the first housing part face the interior space.

A three dimensional (3D) In-Silicon energy storage device is provided by a method that includes forming a thick dielectric material layer on a surface of a silicon based substrate. A 3D trench is then formed into the dielectric material layer and the silicon based substrate, and thereafter a dielectric material spacer is formed, in addition to the dielectric remaining on the field of the substrate, as well as along a sidewall of the 3D trench, and on a first portion of a sub-surface of the silicon based substrate that is present at a bottom of the 3D trench. A second portion of the sub-surface of the silicon based substrate that is present in the 3D trench remains physically exposed. Active energy storage device materials can then be formed laterally adjacent to the dielectric material spacer that is within the 3D trench and on the dielectric material layer.