Patents Assigned to VARTA MICROBATTERY GMBH, A CORPORATION OF GERMANY
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Publication number: 20110269012Abstract: An electrochemical element includes at least one individual cell having electrodes arranged on a sheet-like separator, wherein the electrodes have been applied to the separator by at least one adhesive.Type: ApplicationFiled: December 7, 2007Publication date: November 3, 2011Applicant: Varta Microbattery GmbH, a Corporation of GermanyInventors: Arno Perner, Thomas Woehrle, Markus Kohlberger, Rainer Hald, Markus Pompetzki, Peter Haug, Calin Wurm, Dejan Ilic
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Publication number: 20110183182Abstract: A galvanic element includes at least one single cell having electrodes arranged on a substantially flat separator, at least one of which has a current collector provided with an output lug overlapping an edge area of the separator, with at least one thin layer being arranged in this edge area such that direct mechanical contact is prevented between the output lug and the separator.Type: ApplicationFiled: November 6, 2007Publication date: July 28, 2011Applicant: VARTA Microbattery GmbH, A Corporation of GermanyInventors: Thomas Woehrle, Rainer Hald, Markus Pompetzki, Markus Kohlberger, Johannes Maier, Calin Wurm, Arno Perner, Peter Haug, Dejan Ilic
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Publication number: 20100060230Abstract: A mobile charger including a connector that facilitates charging at least one first battery from at least one second battery, wherein the second battery is a secondary battery and the second battery has a higher capacity than the first battery, thus allowing the first battery to be charged more than once; and a method for charging at least one first battery from at least one second battery, including connecting the second battery to the first battery with a secondary battery being used as the second battery to charge the at least one first battery, which secondary battery has a higher capacity than the first battery such that the first battery can be charged more than once.Type: ApplicationFiled: August 2, 2006Publication date: March 11, 2010Applicant: VARTA MICROBATTERY GMBH, A CORPORATION OF GERMANYInventors: Herbert Schein, Michael Kron, Dejan Ilic
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Publication number: 20090315508Abstract: A charger that charges at least one first battery from at least one second battery, with the first battery to be charged and the second charging battery arranged in a charger, and with the capacity of the first battery to be charged being substantially less than that of the second charging battery and wherein the charger is in the form of a thin substantially cylindrical pen.Type: ApplicationFiled: August 2, 2006Publication date: December 24, 2009Applicant: Varta Microbattery GmbH, A corporation of Germany, Am Leineufer 51Inventors: Herbert Schein, Bernd Behnle, Eduard Pytlik, Dejan Ilic
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Publication number: 20040185338Abstract: An electrochemical element in the form of a button cell having at least one lithium-intercalating electrode, wherein the cell cover or the cell cup has an opening which is closed in a sealed manner during the formation process. Once the formation process has been completed, it is opened briefly for gas to escape from the cell, and is then closed in a gastight manner. The cell cover and the cell cup are composed in particular of metal. The opening can be closed by a metal or metal/plastic composite sheet, which is adhesively bonded or welded to the cell cover or to the cell cup.Type: ApplicationFiled: March 15, 2004Publication date: September 23, 2004Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Konrad Holl, Alfons Joas, Horst Wagner, Kemal Akca, Arno Perner, Dejan Ilic
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Publication number: 20040182939Abstract: A thin electronic chip card with an IC chip and a galvanic element as an energy store, which has at least one lithium-intercalating electrode and has a thin, flexible housing comprising two metal foils, which bear directly against the electrodes and are connected to each other in a sealed manner with an adhesive or sealing layer, the element is arranged in a recess in the chip card and the chip card and the element are covered on both sides by an overlay plastic film, which is firmly bonded to the chip card and the element with an elastic stress-compensating adhesive, which adheres simultaneously on metals and plastics.Type: ApplicationFiled: January 28, 2004Publication date: September 23, 2004Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Stefan Furst, Michael Moser, Heinrich Stelzig, Claudia Rathmann, Fatima Birke-Salam, Dejan Ilic, Ulrich Bosch, Thomas Woehrle
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Publication number: 20040183541Abstract: In a method for fault tracing in automatically operating electronic measurement and test arrangements for a large number of electrochemical elements, cell simulators are inserted into the holders which are provided for the electrochemical elements. The external shape and size, including the electrical connections, of these cell simulators simulate an electrochemical element. They contain test electronics, whose behaviour with inverse polarity differs to a major extent from the behaviour with polarity based on the application. One cell simulator is activated and has a measurement current applied to it. The voltage and/or the voltage response on the cell simulator are/is then measured and are/is compared with the nominal voltage value predetermined for this cell simulator. The test electronics comprise at least a resistor and a diode connected in parallel.Type: ApplicationFiled: November 10, 2003Publication date: September 23, 2004Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Rainer Hald, Peter Haug, Dejan Ilic, Willi Wallkum, Peter Birke
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Publication number: 20040134259Abstract: In a method for leak testing of electrochemical elements which have a thin flexible housing that is composed of a metal sheet or a metal/plastic composite sheet, after assembly and if necessary after formation in a closed container, the electrochemical element is subjected to an increased pressure and then to a reduced pressure, and any change in thickness that occurs is measured. Alternatively, after assembly, formation and storage in a closed container, the electrochemical element is subjected to a reduced pressure, and any change in thickness that occurs is measured.Type: ApplicationFiled: December 5, 2003Publication date: July 15, 2004Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Peter Haug, Peter Birke, Rainer Hald, Konrad Holl, Dejan Ilic
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Publication number: 20040110061Abstract: The invention includes a rechargeable galvanic element with at least one lithium-intercalating electrode and a sealed thin flexible casing having two metal or composite metal/plastic sheets joined to each other by an adhesive or sealing layer. Inside the element, a PTC element is connected in series into one of the terminal leads. The PTC element is embedded inside the cell or into the edge of the element in the region of an adhesive or a sealing layer and is provided with a plastic coating resistant to organic electrolytes.Type: ApplicationFiled: October 9, 2003Publication date: June 10, 2004Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Peter Haug, Peter Birke, Dejan Ilic, Rainer Hald, Thomas Woehrle
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Publication number: 20030232244Abstract: A method for producing an electrochemical element having at least one lithium-intercollating electrode and an organic electrolyte, at least one positive electrode, at least one negative electrode and at least one separator are joined together to form an element, with the separator being a porous matrix composed of at least about 60% by weight of a ceramic material A, which contains lithium ions, and a polymer as a binding agent. The resulting element is then introduced into a housing and impregnated with a liquid organic electrolyte B, whose conductive salt contains lithium ions, so that the ionic total conductivity of the separator is formed by adding the ion conductivities of A and B and the reciprocal of the specific contact resistance of the phase boundary between A and B, and is then closed such that it is sealed. A copolymer composed of vinylidene fluoride and hexafluoropropylene is used as the binder polymer. Material A is a naturally occurring mineral.Type: ApplicationFiled: April 29, 2003Publication date: December 18, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Peter Birke, Fatima Birke-Salam, Thomas Woehrle, Peter Haug, Konrad Holl, Heinrich Stelzig, Dejan Ilic
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Publication number: 20030232241Abstract: An electrochemical element has at least one lithium-intercalating electrode and a thin flexible housing composed of two metal sheets, which rest directly on the electrodes and are connected to one another in a sealing manner via an adhesive or sealing layer. At least one of the metal sheets is provided on the outside with a plastic layer, which increases the robustness and strength. An adhesion layer is arranged between the metal sheet and the plastic layer. The metal sheet is composed, for example, of copper. The plastic layer is composed, for example, of polyimide. The adhesion layer is based, for example, on rubber.Type: ApplicationFiled: June 9, 2003Publication date: December 18, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Thomas Woehrle, Peter Birke, Fatima Birke-Salam, Claudia Rathmann, Stefan Fuerst, Heinrich Stelzig, Dejan Ilic
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Publication number: 20030228515Abstract: An electrochemical element which contains a stack including two or more individual cells with positive and negative electrodes as well as separators in a housing formed from a metal sheet which is coated on the inside with insulating material. The output conductor lugs of each polarity are welded to a collector. The collector forms an external electrical connection of the electrochemical element. Those areas of the output conductor lugs and the collector which are welded to them, point towards the housing internal wall and are adjacent to the housing wall and are covered with a plastic film. The plastic film is adhesively bonded to the output conductor and to the collector with a silicone adhesive layer and is composed, for example, of polyimide.Type: ApplicationFiled: June 4, 2003Publication date: December 11, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Thomas Woehrle, Winfried Gaugler, Wolf-Ulrich Barenthin, Heinrich Stelzig, Dejan Ilic
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Publication number: 20030228517Abstract: An electrochemical element with thin electrodes in a housing formed from plastic sheets connected to one another. At least one of the plastic sheets is metallized in subareas on the side facing one of the electrodes. The metal layer forms an electrical contact with the electrode and forms an outer contact lug of the electrode. The plastic sheet may be a composite sheet with an inner metal sheet covered by a plastic sheet on both sides, and the metallization of the plastic sheet in the area outside the cell outline may be in the form of conductor tracks. In particular, the housing is formed from two plastic sheets which are sealed to one another and metallized on their side which points into the cell interior such that the metallization forms the electrical contact with the electrodes and forms the outer contact lugs of the electrodes and/or of the electrochemical element.Type: ApplicationFiled: April 29, 2003Publication date: December 11, 2003Applicant: VARTA Microbattery GmbH. a corporation of GermanyInventors: Konrad Holl, Alfons Joas, Horst Wagner, Dejan Ilic, Roland Mueller, Wolfgang Siefert
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Publication number: 20030213120Abstract: A method for producing a rechargeable button cell having a negative electrode composed of a lithium/indium alloy, a positive lithium/intercalating electrode and an organic electrolyte, a lithium layer and an indium layer are introduced into a negative housing half-section. The positive electrode material is introduced into a positive housing half-section. The two housing half-sections are beaded to form the button cell once the organic electrolyte has been added and a separator has been placed in between, with a seal being inserted between the housing half-sections. A lithium-indium alloy is formed from the lithium layer and the indium layer by storage or a subsequent charging/discharge cycle.Type: ApplicationFiled: April 28, 2003Publication date: November 20, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Konrad Holl, Arno Perner, Horst Wagner, Rolf Hennrich, Dejan Ilic
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Publication number: 20030211387Abstract: A galvanic element with an alkaline electrolyte and a zinc negative electrode, in a housing in the form of a button cell, where at least the outer surface of the cell's cap is coated with a Cu—Sn-alloy containing no nickel or with a Cu—Sn—Zn-alloy containing no nickel. The alloy contains about 20% to about 90% Cu, preferably about 50% to about 60% Cu, with the remainder being Sn, or about 50% to about 60% Cu and about 25% to about 35% Sn, with the remainder being Zn.Type: ApplicationFiled: March 26, 2003Publication date: November 13, 2003Applicant: VARTA Microbattery GmbH, a corporation of Germany, Am Leineufer 51,30419 Hannover, GermanyInventors: Eugen Braunger, Konrad Holl, Bernd Kreidler, Dejan Ilic
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Publication number: 20030205500Abstract: A sales packaging for electric storage batteries having a backing and a cover fastened thereto. The storage battery has a connecting cable and a connector. The cover encloses the storage battery. The connecting cable and connector are brought out of the sales packaging and are accessible without damaging the cover. The connector is arranged in an opening in the backing, removable therefrom, and the opening is surrounded by slits.Type: ApplicationFiled: March 13, 2003Publication date: November 6, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Herbert Schein, Torsten Schmerer, Asela Jayampathy, Helmut Hewelt, Heinrich Stelzig, Kuno Gross
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Publication number: 20030183552Abstract: A sales or storage packaging for button cells has a holder for several button cells arranged on a carrier and has at least the seller's designation arranged on the carrier in the form of an adhesive, transparent, printed label attached thereto.Type: ApplicationFiled: March 18, 2003Publication date: October 2, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Herbert Schein, Anja Krueger, Helmut Hewelt, Manfred Bradler, Heinrich Stelzig, Manfred Haegele
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Publication number: 20030182793Abstract: Apparatus for forming flat galvanic elements, wherein a large number of flat cells are inserted next to one another in recesses in a holder, wherein the recesses have been adapted to suit the cross-section of the cells. Conductor tabs on the flat cells point in the same direction and are clamped between contacting springs in the form of plates arranged on holders. The contacting springs contact both sides of the conductor tabs and have contacting surfaces that are much wider than the conductor tabs.Type: ApplicationFiled: March 12, 2003Publication date: October 2, 2003Applicant: VARTA Microbattery GmbH, a corporation of GermanyInventors: Rainer Hald, Markus Zeberer, Thomas Haake, Dejan Ilic
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Publication number: 20030154593Abstract: A method for manufacturing a galvanic element including forming individual cells including electrode films laminated to a separator, wherein at least one of the electrodes is a lithium intercalating electrode with a polymer matrix in which electrochemically active materials are finely dispersed, wherein the electrochemically active materials are insoluble in the polymer, verifying the function of the individual cells by measuring impedance of the individual cells, and introducing an organic electrolyte into the cells to form the element.Type: ApplicationFiled: February 20, 2003Publication date: August 21, 2003Applicant: Varta Microbattery GmbH, a corporation of GermanyInventors: Rainer Hald, Winfried Gaugler, Konrad Holl, Peter Haug, Thomas Woehrle, Peter Birke, Dejan Ilic