Abstract: A secondary lithium ion cell includes an electrode-separator assembly in the form of a winding with two terminal end faces. The electrode separator assembly comprising an anode, a cathode, and a separator. The anode comprises an anode current collector comprising a first longitudinal edge, a second longitudinal edge, a strip-shaped main region, and a free edge strip extending along the first longitudinal edge. The strip shaped main region of the anode current collector is loaded with a layer of negative electrode material and the free edge strip of the anode current collector is not loaded with the negative electrode material. The layer of negative electrode material comprises metallic lithium. The cathode comprises a cathode current collector comprising a first longitudinal edge, a second longitudinal edge, a strip-shaped main region, and a free edge strip extending along the first longitudinal edge.

Abstract: An energy storage element includes an assembly comprising a plurality of anodes, each respective anode of the plurality of anodes comprising an anode current collector having a main region loaded with a layer of negative electrode material and a free edge strip. The energy storage element further includes a plurality of cathodes, each respective cathode comprising a cathode current collector having a main region loaded with a layer of positive electrode material and a free edge strip. The anodes and the cathodes are stacked and are separated by separators or layers of a solid state electrolyte and the assembly is enclosed in a prismatic housing. The free edge strips of the anode current collectors protrude from one side of the assembly and the free edge strips of the cathode current collectors protrude from another side of the assembly.

Abstract: The invention relates to an energy storage cell (100) in the form of a cylindrical round cell having an outside diameter of al least 30 mm, comprising an electrode-separator composite (104) having the following sequence: anode, separator, cathode. The electrode-separator composite (104) is in the form of a hollow cylindrical winding having two terminal end faces and having a winding casing lying therebetween. The energy storage cell comprises a housing, which surrounds a hollow cylindrical interior.

Abstract: An energy storage element includes a sealed housing and an electrode-separator assembly disposed therein. The housing includes a metallic cup-shaped housing part having a housing bottom, a circumferential side wall, and a terminal opening, and a lid assembly closing the terminal opening of the cup-shaped housing part. One edge of an anode current collector or of a cathode current collector is electrically connected to the housing bottom and another edge is electrically connected to a contact sheet metal member which is directly seated on this edge. The lid assembly includes a metallic cover plate and a terminal pole which is guided through an aperture in the cover plate and is electrically insulated from the cover plate. The terminal pole is seated directly on the contact sheet metal member and is connected thereto by welding. Furthermore, the terminal pole is electrically insulated from the cover plate by a cured potting compound.

Abstract: 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.

Abstract: A an energy storage cell includes an electrode-separator assembly comprising an anode, a cathode, and a separator in a form of a cylindrical winding having two terminal end faces and a winding shell. An anode current collector includes a first longitudinal edge, and a cathode current collector includes a first longitudinal edge. The energy storage cell also includes a tubular housing portion in which the cylindrical winding is aligned axially. An at least partly metallic contact element with a circular edge is in direct contact with and connected the first longitudinal edge of the anode current collector or the first longitudinal edge of the cathode current collector. The energy storage cell further includes an annular seal made of an electrically insulating material that surrounds the circular edge of the contact element. The contact element together with the seal closes a terminal circular opening of the tubular housing portion.

Abstract: A lithium-ion cell includes a ribbon-shaped electrode-separator assembly having an anode, a separator, and a cathode in a sequence anode/separator/cathode. The anode has a ribbon-shaped anode current collector having a first longitudinal edge, a second longitudinal edge, and two ends, wherein the anode current collector has a strip-shaped main region loaded with a layer of negative electrode material and a free edge strip extending along the first longitudinal edge that is not loaded with the electrode material. The cathode has a ribbon-shaped cathode current collector, wherein the cathode current collector has a strip-shaped main region loaded with a layer of positive electrode material and a free edge strip extending along the first longitudinal edge that is not loaded with the electrode material. The negative electrode material containing the at least one active material in a range of from 20 wt % to 90 wt %.

Abstract: An electrochemical cell includes a winding comprising a ribbon-shaped negative electrode with an anode current collector and a ribbon-shaped positive electrode with a cathode current collector. An assembly comprises the negative electrode and the positive electrode, the assembly is wound spirally around a winding axis to form the winding, the winding comprises a central cavity, two terminal end faces, and a circumferential winding shell. The electrochemical cell further includes a contact sheet metal member in direct contact with a protruding longitudinal edge of the anode current collector or the cathode current collector. In addition, the electrochemical cell includes a housing, a sensor apparatus configured detect changes in a state of the winding, and a display and/or a contact configured to display measured values and/or via which the measured values can be transmitted.

Abstract: A lithium-ion cell includes a ribbon-shaped electrode-separator assembly having an anode, a cathode, and a separator. The electrode-separator assembly is in the form of a winding with two terminal end faces. The anode has a ribbon-shaped anode current collector with a free edge strip extending along a first longitudinal edge that is not loaded with negative electrode material. The cathode has a ribbon-shaped cathode current collector with a free edge strip extending along a first longitudinal edge that is not loaded with positive electrode material. The separator has at least one inorganic material that improves its resistance to thermal stress. The lithium-ion cell further includes a housing enclosing the electrode-separator assembly and a metallic contact element. The metallic contact element is connected to a respective first longitudinal edge of one of the current collectors by a weld.

Abstract: A lithium ion cell includes a ribbon-shaped electrode-separator assembly comprising an anode, a separator. The electrode-separator assembly is formed as a winding. The anode comprises, as an anode current collector, a ribbon-shaped metal foil having a first longitudinal edge. The anode current collector has a strip-shaped main region loaded with a layer of negative electrode material and a free edge strip extending along the first longitudinal edge that is not loaded with the negative electrode material. The cathode comprises, as a cathode current collector, a ribbon-shaped metal foil having a first longitudinal edge. The cathode current collector has a strip-shaped main region loaded with a layer of positive electrode material and a free edge strip extending along the first longitudinal edge that is not loaded with the positive electrode material. The strip-shaped main region of the anode current collector or the cathode current collector has a plurality of apertures.

Abstract: A lithium-ion secondary electrochemical cell includes a negative electrode formed as a composite electrode comprising an anode current collector and a first electrochemically active component capable of intercalating and deintercalating lithium ions. The lithium-ion electrochemical cell further includes a positive electrode formed as a composite electrode comprising a cathode current collector and a second electrochemically active component capable of intercalating and deintercalating lithium ions. The lithium-ion electrochemical cell also includes a lithium reserve formed at a current collector reserve region that is at least partly free of the first and the second electrochemically active components, the current collector reserve region being a portion of the anode current collector and/or the cathode current collector.

Abstract: An electrochemical cell including an electrode-separator composite having an anode, at least one separator and a cathode, wherein the anode comprises an anode current collector having a surface consisting of at least one metal and has been laden with at least one layer of a negative active electrode material, the cathode comprises a cathode current collector having a surface consisting of at least one metal and has been laden with at least one layer of a positive active electrode material, and the surface of the anode current collector and/or the surface of the cathode current collector comprises at least one clear region not laden with the respective active electrode material, and in the at least one clear region the surface of the anode current collector and/or the surface of the cathode current collector has been coated with a support material of greater thermal stability than the surface coated therewith.

Abstract: A secondary electrochemical cell includes a negative electrode including as an output conductor, a metallic or metal-coated open-pore form or a metallic or metal-coated nonwoven, as a carbon-based storage material that enables storage of electrical charge in the electrode through formation of an electrical double layer (Helmholtz double layer), activated carbon having a BET surface area of at least 800 m2/g, a non-carbon-based H2 storage material that can chemisorb hydrogen and/or store it as a metal hydride, a positive electrode including as an output conductor, a metallic or metal-coated open-pore form or a metallic or metal-coated nonwoven, and nickel hydroxide and/or nickel oxyhydroxide, a porous separator that separates the negative electrode and the positive electrode from one another, an aqueous alkaline electrolyte with which the electrodes and the separator are soaked, and a housing that encases the electrodes, the separator and the electrolyte.

Abstract: An asymmetric, secondary electrochemical cell having an aqueous, alkaline electrolyte includes a negative electrode which as anode storage material includes a carbon-based storage material that allows the storage of electric charge in the electrode by formation of an electric double layer and also an additional storage material that can store electric energy by redox reactions. The positive electrode of the cell includes nickel hydroxide and/or nickel oxyhydroxide and/or a derivative of these nickel compounds as cathode storage material. The capacity of the negative electrode Kn has a ratio X to the capacity of the positive electrode Kp of 0.7:1 to 5:1. The additional storage material is present in a proportion of 0.1 to 8% by weight in the negative electrode, based on the dry weight thereof.

Abstract: A secondary electrochemical cell includes a negative electrode including as an output conductor, a metallic or metal-coated open-pore form or a metallic or metal-coated nonwoven, as a carbon-based storage material that enables storage of electrical charge in the electrode through formation of an electrical double layer (Helmholtz double layer), activated carbon having a BET surface area of at least 800 m2/g, a non-carbon-based H2 storage material that can chemisorb hydrogen and/or store it as a metal hydride, a positive electrode including as an output conductor, a metallic or metal-coated open-pore form or a metallic or metal-coated nonwoven, and nickel hydroxide and/or nickel oxyhydroxide, a porous separator that separates the negative electrode and the positive electrode from one another, an aqueous alkaline electrolyte with which the electrodes and the separator are soaked, and a housing that encases the electrodes, the separator and the electrolyte.

Abstract: A secondary electrochemical cell includes a negative electrode including an output conductor, activated carbon having a BET surface area of at least 800 m2/g as a carbon-based storage material that enables storage of electrical charge in the electrode through formation of an electrical double layer (Helmholtz double layer), a positive electrode including an output conductor, and nickel hydroxide and/or nickel oxyhydroxide, a porous separator that separates the negative electrode and the positive electrode from one another, an aqueous alkaline electrolyte with which the electrodes and the separator are soaked, and a housing that encases the electrodes, the separator and the electrolyte.

Abstract: An emergency system for power failures includes a single-cell or multiple-cell rechargeable battery selected from the group consisting of NiMH, NiCd, NiZn, Ag2O/Zn or lithium-ion, and a charging electronics system that charges the battery, wherein the charging electronics system provides a charging voltage at which the battery does not overcharge at a temperature of up to 80° C., and wherein the charging electronics system supplies a charging voltage at which the battery is transferred into a charging state and/or is kept in a charging state, in which the battery is charged to 5% to 30%.

Abstract: A button cell has a winding arranged in the cup-shaped, positive-polarity housing half such that one of the flat end sides points in the direction of the cup base, the circumferential outer side thereof bears against the circumferential cup wall and the outer side together with the cup wall forms a clamping zone in which the first current output conductor is clamped.

Abstract: A method of producing a button cell having an anode including metal particles, including providing an anode mixture including as constituents metal particles, at least one binder, at least one conducting agent and, optionally, a gassing inhibitor, providing a button cell housing, introducing the mixture into the button cell housing, admixing the mixture with an electrolyte, and liquid-tight sealing of the housing, wherein the constituents of the mixture are contacted in the presence of water prior to introduction into the housing, and after the contacting the water is removed from the mixture at least partially.

Abstract: A button cell has a winding arranged in the cup-shaped, positive-polarity housing half such that one of the flat end sides points in the direction of the cup base, the circumferential outer side thereof bears against the circumferential cup wall and the outer side together with the cup wall forms a clamping zone in which the first current output conductor is clamped.