Patents Assigned to VARTA MICROBATTERY GMBH, A CORPORATION OF GERMANY
  • Publication number: 20110269012
    Abstract: 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: Application
    Filed: December 7, 2007
    Publication date: November 3, 2011
    Applicant: Varta Microbattery GmbH, a Corporation of Germany
    Inventors: Arno Perner, Thomas Woehrle, Markus Kohlberger, Rainer Hald, Markus Pompetzki, Peter Haug, Calin Wurm, Dejan Ilic
  • Publication number: 20110183182
    Abstract: 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: Application
    Filed: November 6, 2007
    Publication date: July 28, 2011
    Applicant: VARTA Microbattery GmbH, A Corporation of Germany
    Inventors: Thomas Woehrle, Rainer Hald, Markus Pompetzki, Markus Kohlberger, Johannes Maier, Calin Wurm, Arno Perner, Peter Haug, Dejan Ilic
  • Publication number: 20100060230
    Abstract: 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: Application
    Filed: August 2, 2006
    Publication date: March 11, 2010
    Applicant: VARTA MICROBATTERY GMBH, A CORPORATION OF GERMANY
    Inventors: Herbert Schein, Michael Kron, Dejan Ilic
  • Publication number: 20090315508
    Abstract: 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: Application
    Filed: August 2, 2006
    Publication date: December 24, 2009
    Applicant: Varta Microbattery GmbH, A corporation of Germany, Am Leineufer 51
    Inventors: Herbert Schein, Bernd Behnle, Eduard Pytlik, Dejan Ilic
  • Publication number: 20040185338
    Abstract: 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: Application
    Filed: March 15, 2004
    Publication date: September 23, 2004
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Konrad Holl, Alfons Joas, Horst Wagner, Kemal Akca, Arno Perner, Dejan Ilic
  • Publication number: 20040182939
    Abstract: 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: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Stefan Furst, Michael Moser, Heinrich Stelzig, Claudia Rathmann, Fatima Birke-Salam, Dejan Ilic, Ulrich Bosch, Thomas Woehrle
  • Publication number: 20040183541
    Abstract: 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: Application
    Filed: November 10, 2003
    Publication date: September 23, 2004
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Rainer Hald, Peter Haug, Dejan Ilic, Willi Wallkum, Peter Birke
  • Publication number: 20040134259
    Abstract: 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: Application
    Filed: December 5, 2003
    Publication date: July 15, 2004
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Peter Haug, Peter Birke, Rainer Hald, Konrad Holl, Dejan Ilic
  • Publication number: 20040110061
    Abstract: 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: Application
    Filed: October 9, 2003
    Publication date: June 10, 2004
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Peter Haug, Peter Birke, Dejan Ilic, Rainer Hald, Thomas Woehrle
  • Publication number: 20030232244
    Abstract: 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: Application
    Filed: April 29, 2003
    Publication date: December 18, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Peter Birke, Fatima Birke-Salam, Thomas Woehrle, Peter Haug, Konrad Holl, Heinrich Stelzig, Dejan Ilic
  • Publication number: 20030232241
    Abstract: 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: Application
    Filed: June 9, 2003
    Publication date: December 18, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Thomas Woehrle, Peter Birke, Fatima Birke-Salam, Claudia Rathmann, Stefan Fuerst, Heinrich Stelzig, Dejan Ilic
  • Publication number: 20030228515
    Abstract: 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: Application
    Filed: June 4, 2003
    Publication date: December 11, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Thomas Woehrle, Winfried Gaugler, Wolf-Ulrich Barenthin, Heinrich Stelzig, Dejan Ilic
  • Publication number: 20030228517
    Abstract: 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: Application
    Filed: April 29, 2003
    Publication date: December 11, 2003
    Applicant: VARTA Microbattery GmbH. a corporation of Germany
    Inventors: Konrad Holl, Alfons Joas, Horst Wagner, Dejan Ilic, Roland Mueller, Wolfgang Siefert
  • Publication number: 20030213120
    Abstract: 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: Application
    Filed: April 28, 2003
    Publication date: November 20, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Konrad Holl, Arno Perner, Horst Wagner, Rolf Hennrich, Dejan Ilic
  • Publication number: 20030211387
    Abstract: 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: Application
    Filed: March 26, 2003
    Publication date: November 13, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany, Am Leineufer 51,30419 Hannover, Germany
    Inventors: Eugen Braunger, Konrad Holl, Bernd Kreidler, Dejan Ilic
  • Publication number: 20030205500
    Abstract: 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: Application
    Filed: March 13, 2003
    Publication date: November 6, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Herbert Schein, Torsten Schmerer, Asela Jayampathy, Helmut Hewelt, Heinrich Stelzig, Kuno Gross
  • Publication number: 20030183552
    Abstract: 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: Application
    Filed: March 18, 2003
    Publication date: October 2, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Herbert Schein, Anja Krueger, Helmut Hewelt, Manfred Bradler, Heinrich Stelzig, Manfred Haegele
  • Publication number: 20030182793
    Abstract: 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: Application
    Filed: March 12, 2003
    Publication date: October 2, 2003
    Applicant: VARTA Microbattery GmbH, a corporation of Germany
    Inventors: Rainer Hald, Markus Zeberer, Thomas Haake, Dejan Ilic
  • Publication number: 20030154593
    Abstract: 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: Application
    Filed: February 20, 2003
    Publication date: August 21, 2003
    Applicant: Varta Microbattery GmbH, a corporation of Germany
    Inventors: Rainer Hald, Winfried Gaugler, Konrad Holl, Peter Haug, Thomas Woehrle, Peter Birke, Dejan Ilic