A conformable battery pack assembly includes an array of individual electrochemical cells electrically connected with one another. The array is surrounded and encapsulated by a flexible outer shell. The array is arranged geometrically so that there are at least three non-parallel bending axes.

A button cell includes a housing having a cell cup, the cell cup having a flat bottom area, a cell cup casing, and a bottom edge forming a transition between the flat bottom area and the cell cup casing, and a cell top, the cell top having a flat top area and a cell top casing. An electrode-separator assembly winding is 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 including a separator disposed between a positive electrode and a negative electrode, and a first output conductor. An insulator is disposed between an end face of the electrode-separator assembly winding and the first output conductor, wherein the first output conductor is welded to the first of the flat bottom area or the flat top area.

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 connected to the first electrode to house the electrode assembly and including an opening to receive the electrode assembly; a cap plate coupled with the case to cover an outer region of the opening and including a through-hole to expose a center region of the opening; and a terminal plate connected to the second electrode to be insulated from and bonded to the cap plate, and including a flange part covering the through-hole and a protruded part penetrating the through-hole from the flange part.

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 rechargeable lithium ion button cell includes a first metal conductor electrically connected to a positive electrode and a housing component, and a second metal conductor electrically connected to the positive electrode and another housing component, wherein the positive electrode and a negative electrode each include a strip-shaped current collector, at least one of the strip-shaped current collectors includes sections coated with an active electrode material and an uncoated section between two coated sections, and either the first or the second metal conductor is attached by welding to the uncoated section and one of planar bottom and planar top regions, thereby electrically connecting either the positive or negative electrode to the housing component.

A method for producing a button cell includes providing a cell cup, a cell top and an electrode-separator assembly winding, the electrode-separator assembly winding having a positive electrode and a negative electrode. An electrically insulating seal is applied at least to an outer portion of the cell top casing. The electrode-separator assembly winding is inserted into the cell top. The cell top is inserted into the cell cup to form a housing. A pressure is applied in a radial direction perpendicular to an axis of the electrode-separator assembly winding so as to seal the housing.

A method for producing a button cell includes providing a metal cell cup, providing a metal cell top, and providing a first electrode and a second electrode. The first electrode includes a first current collector partially coated with a first active electrode material and having an active material-free region. The second electrode includes a second current collector partially coated with a second active electrode material and having an active material-free region. The method further includes attaching a first metal foil conductor to the active material-free region of the first current collector, attaching a second metal foil conductor to the active material-free region of the second current collector, and forming a cylindrical electrode winding by winding, in a spiral, an electrode assembly. The first and second metal foil conductors extend out of the cylindrical electrode winding from first and second end faces of the cylindrical electrode winding.

A button battery and a manufacturing method thereof are provided. The button battery includes a housing with a positive electrode shell and a negative electrode shell, wherein a plurality of positive electrode plates and a plurality of negative electrode plates are provided in the housing. The positive electrode plates and negative electrode plates are stacked at intervals to form a columnar cell. The positive electrode plates and the negative electrode plates are connected to the positive electrode shell and the negative electrode shell through a current collector respectively.

A button-type secondary battery includes a can including a lower side and an opened upper side; electrode assembly is mounted in the can, the electrode assembly including an electrode tab; a cap coupled to cover the upper side of the can, the electrode tab being electrically connected to the cap; a can holder to fix the can so that a top surface of the electrode assembly faces an upper side; a cap holder to grip the cap so that the cap rotates and ascends or descends; and a guide that is slidable toward the electrode tab so that an end of one side of the guide presses a predetermined point to form a bending point, at which bending of the electrode tab occurs when the electrode tab is bent.

A lithium-ion cell includes a housing comprising a metallic tubular housing part made of aluminum or an aluminum alloy with a terminal circular opening. The cell further includes a contact element that closes the terminal circular opening of the tubular housing part, the contact element comprising a metal disk, a contact sheet metal member, a metal pole pin and an insulator. In addition, the cell includes an electrode-separator assembly having an anode, a cathode, and a separator with the sequence anode/separator/cathode. The electrode-separator assembly is in the form of a cylindrical winding with two terminal end faces and a winding shell located therebetween. The electrode-separator assembly is disposed in the winding and is axially aligned so that the winding shell abuts an inside of the tubular housing part.