| Varta Microbattery GmbH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120100406 | BUTTON CELL HAVING WINDING ELECTRODE AND METHOD FOR THE PRODUCTION THEREOF - A button cell includes a housing consisting of two metal housing halves, an electrode separator assembly in the form of a preferably spiral-shaped winding inside the housing, and metal conductors which electrically connect the electrodes of the assembly to the housing halves, wherein at least one of the conductors is connected to the respective housing half by welding. | 04-26-2012 |
| 20120080353 | RETAIL AND STORAGE PACK FOR ZINC-AIR BUTTON CELLS - A retail and storage pack of the blister card type for zinc-air button cells includes a support, and a transparent plastics film fixed thereon and has cup-shaped stamp-outs for reception of the button cells, wherein the pack is divided into single pack regions which can respectively be torn off separately and each of which respectively comprises at least one of the cup-shaped stamp-outs, and wherein the support is provided with an adhesive layer to which button cells received in the cup-shaped stamp-outs adhere by their base, which bases are provided with air inlet openings. | 04-05-2012 |
| 20120070739 | GALVANIC ELEMENT HAVING A MERCURY-FREE NEGATIVE ELECTRODE - A galvanic element includes a mercury-free negative electrode which consists essentially of a metal or a metal alloy and a nonmetallic conductive agent. A method for producing a galvanic element includes a mercury-free negative electrode produced from a powder of metal or metal alloy particles, surfaces of which are at least partially coated with a nonmetallic conductive agent. | 03-22-2012 |
| 20120064393 | BUTTON CELL AND METHOD FOR PRODUCTION THEREOF - A button cell has a multiple-part housing for holding electrodes and a separator, wherein there is an interlocking connection between the housing and at least one of the electrodes, in particular the anode. A method for producing button cells includes a step wherein an electrode material is introduced into a housing half-part, the inside of which has at least one recess provided with at least one undercut to create an interlocking connection between the resultant electrode and the housing half-part. | 03-15-2012 |
| 20120028110 | BUTTON CELL WITHOUT FLANGING AND METHOD OF MAKING SAME - A method for producing a button cell with a housing includes a cell cup with a base region, a lateral region, an edge region lying therebetween and a cut edge, and a cell cover with a cover region, a lateral region, an edge region lying therebetween and a cut edge, connected to one another via a seal. The method includes at least applying the seal to the lateral region, inserting the cell cover with the seal into the cell cup, wherein a region is formed in which the lateral regions and overlap one another, and exerting a pressure on the lateral region of the cell cup. The heights of the lateral regions and are matched to one another such that the cut edge is pressed against the lateral region by pressure. The cell cup of button cells have an inner radius which is essentially constant in the region in the direction of the cut edge. | 02-02-2012 |
| 20120015224 | BUTTON CELLS AND METHOD FOR PRODUCING SAME - A button cell includes a housing cup and a housing top separated from one another by an electrically insulating seal and which form a housing with a flat bottom area and a flat top area parallel to it and an electrode-separator assembly within the housing including at least one positive and at least one negative electrode in the form of flat layers and connected to one another by at least one flat separator, wherein the electrode layers are aligned essentially at right angles to the flat bottom and top areas and the button cell is closed without being beaded over. | 01-19-2012 |
| 20110309310 | ELECTRODE-ACTIVE MATERIAL FOR ELECTROCHEMICAL ELEMENTS - A process for producing active material for an electrode of an electrochemical element includes providing carbon particles, applying a silicon precursor to surfaces of the carbon particles, and thermally decomposing the silicon precursor to form metallic silicon. | 12-22-2011 |
| 20110268997 | BATTERY HAVING SIMPLIFIED DESIGN - A battery comprising a cell stack comprising at least one individual cell in a cell housing, an electronic component part, electrical conductors between the cell stack and the electronic component part and an injection-molded part which substantially completely surrounds the electrical conductors and is connected in form-fitting fashion both the cell stack and to the electronic component part and connects the cell stack and the electronic component part to one another, outer contact faces of the battery also being integrated in the electronic component part in addition to at least one electronic circuit. | 11-03-2011 |
| 20110200871 | ELECTROCHEMICAL CELL AND PROCESS FOR PRODUCING IT - A process for producing an electrochemical cell includes assembling a cell housing from a plurality of parts, and applying and curing at least one reactive polymer precursor to at least one of the housing parts to seal the housing. | 08-18-2011 |
| 20110159354 | GALVANIC ELEMENT WITH A HIGH CAPACITY - A button cell includes a positive electrode, a negative electrode and a separator arranged in a housing comprising a cell cup and a cell lid insulated from one another by a seal, wherein the negative electrode is tablet-shaped pressed body having a self-supporting structure. | 06-30-2011 |
| 20110086260 | THIN HOUSING FILM FOR ELECTROCHEMICAL ELEMENTS - A housing film for electrochemical elements includes a barrier layer having a polymeric structure which has been deposited from the gas phase on to a support layer, an electrochemical element which has at least one positive electrode and at least one negative electrode and has at least one such film. A process for producing the electrochemical element includes steps wherein at least two electrodes are applied next to one another on a substrate and are covered with a film, where the substrate and/or the film is such a housing film. | 04-14-2011 |
| 20110086253 | ELECTROCHEMICAL CELL WITH AN IRREVERSIBLE FUSE - A rechargeable electrochemical cell includes at least one lithium-intercalating electrode; a thin flexible housing, which is closed in a sealed manner, including two films connected to one another by an adhesive or sealing layer; and at least one current output conductor in which an irreversibly tripping thermal fuse is integrated, and the fuse is arranged within the housing and/or embedded in the adhesive or sealing layer. | 04-14-2011 |
| 20110070482 | GALVANIC ELEMENT HAVING FOIL SEAL - A galvanic element with a metallic foil housing which encloses at least one positive and at least one negative electrode, wherein the foil housing is sealed by a plastics foil including at least partly of a polymer which has acid groups and/or which has anhydride groups, and/or which has groups derived therefrom. | 03-24-2011 |
| 20100239915 | ELECTRODES AND LITHIUM-ION CELLS WITH A NOVEL ELECTRODE BINDER - An electrode for a lithium ion battery includes a matrix based on at least one polysaccharide and also particles of at least one electrochemically active material which are embedded in the matrix, with the electrode being free of synthetic polymeric compounds. A battery contains the electrode and a polysaccharide is a binder for electrochemically active electrode materials for such an electrode. | 09-23-2010 |
| 20100081049 | Electrochemical Element - A battery having at least one positive and at least one negative electrode arranged alongside one another on a flat, electrically nonconductive substrate and connected to one another via an electrolyte which conducts ions. | 04-01-2010 |
| 20090029203 | Fuel Cell System With an Electrochemical Hydrogen Generation Cell - A system for supplying a consuming appliance with electric energy, including at least one fuel supply unit in the form of a gas evolution cell which liberates a gaseous fuel on passage of an electric current and at least one fuel cell unit in which the gaseous fuel liberated can be reacted with an oxidant to generate electric power. | 01-29-2009 |
