The present disclosure relates to a method for manufacturing a coin-type secondary battery. The method includes at least: bonding one or more solid electrolytes to an anode upper case; forming an anode active material layer on an anode current collector; sequentially stacking the anode current collector on which the anode active material layer is formed and the anode upper case to which the one or more solid electrolytes are bonded on an anode bottom case to obtain an anode part; sequentially stacking the anode part, a separator, a cathode current collector, and a second case including one or more openings on a first case; bonding the first case to the second case; and introducing an ion-containing solution containing sodium, lithium, magnesium, and a combination thereof from the outside of the second case into an interior thereof.

A method for producing a button cell includes providing a first metal housing part having a first housing plane region, providing a second metal housing part having a second housing plane region, and providing a cylindrical electrode winding having a first end side, a second end side, and an outer side. The electrode winding is formed from a multi-layer assembly wound in a spiral shape about an axis. The multi-layer assembly includes a positive electrode formed from a first current collector coated with a first electrode material, a negative electrode formed from a second current collector coated with a second electrode material, and a separator disposed between the positive electrode and the negative electrode. The method further includes placing the electrode winding into the first metal housing part and forming a cell housing by assembling together the first metal housing part and the second metal housing part.

A method of producing an electrode-separator winding includes feeding a first current collector, feeding a second current collector, feeding two separators in strip form to a winding device, and winding the first and second current collectors and the separators to form a winding with a sequence, wherein a contact strip is welded on at least one of the contact sections of the current collectors, or at least one of the contact sections is folded over to form a contact strip, and at least one of the separators is reinforced in at least one risk region in which the at least one separator within the completed electrode-separator winding lies against the at least one contact section in which the contact strip is welded on or against the at least one contact section folded over to form a contact strip.

The present invention discloses a rechargeable button cell, which includes an anode shell, a cathode shell, and a coiled electric core which is located in a receiving cavity and includes an anode tab and a cathode tab. The anode tab includes a first connection portion, and a first folding portion that is folded from the first connection portion to the lower side of the first connection portion. The first folding portion is welded to a bottom wall from the interior of the anode shell. The cathode tab includes a second connection portion, and a second folding portion that is folded from the second connection portion to the upper side of the second connection portion. The second folding portion is welded to a top wall from the interior of the cathode shell.

The present invention relates to a coin-type secondary battery and a manufacturing method therefor and, specifically, can provide: a coin-type secondary battery, wherein a solid electrolyte is applied to an anode part, an ion-containing solution comprising sodium, lithium, magnesium and a combination thereof is applied to a cathode part, and the ion-containing solution flows in from the outside of the cathode part; and a manufacturing method therefor.

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, a separator between the first and second electrodes, and first and second electrode tabs respectively coupled to the first and second electrodes; a case accommodating the electrode assembly and coupled to the first electrode tab; and a cap assembly sealing an opening in the case. The cap assembly includes: a cap plate covering the opening in the case; and a terminal plate coupled to the cap plate. The terminal plate includes: a flange portion coupled to and electrically insulated from the cap plate; and a tab connecting portion protruding from the flange portion toward the electrode assembly and extending through a terminal opening in the cap plate to be coupled to the second electrode tab. The terminal plate has a flat outer surface, and the tab connecting portion has a flat inner surface.

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.

An electrochemical cell includes a cylindrical housing that encloses an interior space having a first end face and a second end face that are interconnected by an annular shell, and a positive and a negative electrode are arranged in the interior of the housing, wherein the negative electrode is electrically connected, either directly or via a separate conductor, to the first end face to constitute a negative pole, and the positive electrode is electrically connected, either directly or via a separate conductor, to the second end face to constitute a positive pole, and a contact lug is fastened to the first or second end face of the housing.

A button cell includes a housing having a metal cell cup and a metal cell top. The button cell is a secondary lithium ion cell. An electrode winding disposed within the housing is formed from a multi-layer assembly that is wound in a spiral shape about an axis. The multi-layer assembly including a positive electrode, a negative electrode, and a separator disposed between the electrodes. A first conductor is provided that includes a strip-shaped portion that lies flat between a first end side of the electrode winding and a first of the cell cup and cell top. A second conductor is provided that includes a strip-shaped second portion that lies flat between a second end side of the electrode winding and a second of the cell cup and cell top. The first conductor and the second conductor are metal foils.

A button cell includes a housing, the housing having a cell cup with a flat bottom area, and a cell top with a flat top area, and further includes an electrode-separator assembly winding disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis. The multi-layer assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The button cell additionally includes a first output conductor between a first end face of the electrode-separator assembly winding and a first of the flat bottom area or the flat top area, and a second output conductor between a second end face of the electrode-separator assembly winding and a second of the flat bottom area or the flat top area. Furthermore, the button cell includes a first insulator and a second insulator.