Patents by Inventor Konrad Holl
Konrad Holl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11322809Abstract: A cell module stores electrical energy, a battery has such a cell module and a module housing for such a cell module. The module housing includes an internal space in which n cells each having at least one positive and at least one negative electrode are arranged. In this case, n?2 and the module housing here has at least three external electrical connection poles. The battery includes at least two such cell modules. The module housing includes at least three apertures through which electrical conductors are guided from the inside of the module housing to the outside.Type: GrantFiled: September 26, 2016Date of Patent: May 3, 2022Assignees: VARTA Microbattery GmbH, VW Kraftwerk GmbHInventor: Konrad Holl
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Patent number: 10615400Abstract: A battery includes a housing, at least one individual cell arranged in the housing and including at least one positive electrode and at least one negative electrode, a positive pole stud passed through the housing and electrically connected to the at least one positive electrode and/or a negative pole stud passed through the housing and electrically connected to the at least one negative electrode, at least one electrical switch which can be pneumatically operated and changes its switching state in the event of an increase in pressure within the housing beyond a threshold value and thereby interrupts the electrical connection between at least one of the pole studs and an associated at least one electrode, and a resetting device with which an electrical connection which is interrupted as a result of a change in the switching state can be re-established without the housing having to be opened.Type: GrantFiled: April 24, 2014Date of Patent: April 7, 2020Assignees: VW Kraftwerk GmbH, VARTA Microbattery GmbHInventors: Andreas Gaugler, Konrad Holl, Stefan Stock, Werner Schreiber
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Patent number: 10516143Abstract: A battery includes an outer wall having a through-hole defined by a peripheral opening edge, at least one cell having a positive electrode and a negative electrode, an electrically conductive terminal stud connected to the positive electrode or the negative electrode, including a shaft extending through the through-hole, and at least one clamping element sitting on the shaft and covering the through-hole, and forming an annular gap together with the outer wall, an electrically insulating and annular support element surrounding the shaft of the terminal stud in a sleeve-like manner, and having an outward-facing peripheral contact surface against which the opening edge of the through-hole lies, wherein the support element includes a glass or a ceramic, or a glass- or ceramic-based composite material, and a sealing element arranged concentrically around the support element in the gap between the clamping element and the outer wall.Type: GrantFiled: October 25, 2016Date of Patent: December 24, 2019Assignees: VARTA Microbattery GmbH, VW Kraftwerk GmbHInventors: Steffen Aldinger, Achim Frick, Andreas Gaugler, Konrad Holl, Andreas Huth
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Publication number: 20180315966Abstract: A battery includes an outer wall having a through-hole defined by a peripheral opening edge, at least one cell having a positive electrode and a negative electrode, an electrically conductive terminal stud connected to the positive electrode or the negative electrode, including a shaft extending through the through-hole, and at least one clamping element sitting on the shaft and covering the through-hole, and forming an annular gap together with the outer wall, an electrically insulating and annular support element surrounding the shaft of the terminal stud in a sleeve-like manner, and having an outward-facing peripheral contact surface against which the opening edge of the through-hole lies, wherein the support element includes a glass or a ceramic, or a glass- or ceramic-based composite material, and a sealing element arranged concentrically around the support element in the gap between the clamping element and the outer wall.Type: ApplicationFiled: October 25, 2016Publication date: November 1, 2018Inventors: Steffen Aldinger, Achim Frick, Andreas Gaugler, Konrad Holl, Andreas Huth
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Publication number: 20180309094Abstract: A cell module stores electrical energy, a battery has such a cell module and a module housing for such a cell module. The module housing includes an internal space in which n cells each having at least one positive and at least one negative electrode are arranged. In this case, n?2 and the module housing here has at least three external electrical connection poles. The battery includes at least two such cell modules. The module housing includes at least three apertures through which electrical conductors are guided from the inside of the module housing to the outside.Type: ApplicationFiled: September 26, 2016Publication date: October 25, 2018Inventor: Konrad Holl
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Publication number: 20160204413Abstract: A process of producing positive electrodes for lithium ion batteries including providing a composition containing at least one active material that takes up and releases lithium ions during charging and discharging of a lithium ion battery, at least one electrode binder, at least one conductivity improver and water as a solvent and/or suspension medium; providing a current collector having a surface composed of aluminium or of an aluminium alloy; and applying the composition to the surface of the current collector, wherein the composition is alcalinically modified by addition of at least one base so that the pH of the composition is increased before it is applied to the surface of the current collector.Type: ApplicationFiled: February 20, 2014Publication date: July 14, 2016Inventors: Markus Pompetzki, Konrad Holl, Jürgen Moß, Sebastian Schebesta
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Patent number: 9373865Abstract: A method produces electrode windings, in which method a strip- or ribbon-like anode and a strip- or ribbon-like cathode are provided and flat collector lugs are formed on at least one longitudinal side of the anode and of the cathode at varying distances and/or contours are cut into the longitudinal sides of the electrodes. The anode and the cathode are wound up together with a strip- or ribbon-like separator to form a winding with the sequence anode/separator/cathode. The method is distinguished, in particular, in that the process of forming collector lugs and/or of cutting contours and the process of winding up overlap with respect to time.Type: GrantFiled: April 27, 2012Date of Patent: June 21, 2016Assignee: VW-VM Forschungsgesellschaft mbH & Co. KGInventors: Konrad Holl, Markus Pompetzki, Robert Sekler, Heiner Stelzig, Stefan Stock
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Publication number: 20160064723Abstract: A battery includes a housing, at least one individual cell arranged in the housing and including at least one positive electrode and at least one negative electrode, a positive pole stud passed through the housing and electrically connected to the at least one positive electrode and/or a negative pole stud passed through the housing and electrically connected to the at least one negative electrode, at least one electrical switch which can be pneumatically operated and changes its switching state in the event of an increase in pressure within the housing beyond a threshold value and thereby interrupts the electrical connection between at least one of the pole studs and an associated at least one electrode, and a resetting device with which an electrical connection which is interrupted as a result of a change in the switching state can be re-established without the housing having to be opened.Type: ApplicationFiled: April 24, 2014Publication date: March 3, 2016Inventors: Andreas Gaugler, Konrad Holl, Stefan Stock, Werner Schreiber
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Publication number: 20150207133Abstract: A battery includes a housing, at least one individual cell with at least one positive and at least one negative electrode arranged in the housing, a positive tap pole connected to the at least one positive electrode, and a negative tap pole connected to the at least one negative electrode. The battery also includes at least one thermal switch which, in the event of an increase in temperature within the housing beyond a temperature threshold value, changes its switching state as a result of a temperature-induced expansion and/or deformation and trips a safety mechanism which suppresses a further increase in temperature.Type: ApplicationFiled: July 25, 2013Publication date: July 23, 2015Inventors: Konrad Holl, Werner Schreiber, Markus Pompetzki, Stefan Stock, Steffen Legner, Andreas Gaugler
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Publication number: 20140053383Abstract: A method produces electrode windings, in which method a strip- or ribbon-like anode and a strip- or ribbon-like cathode are provided and flat collector lugs are formed on at least one longitudinal side of the anode and of the cathode at varying distances and/or contours are cut into the longitudinal sides of the electrodes. The anode and the cathode are wound up together with a strip- or ribbon-like separator to form a winding with the sequence anode/separator/cathode. The method is distinguished, in particular, in that the process of forming collector lugs and/or of cutting contours and the process of winding up overlap with respect to time.Type: ApplicationFiled: April 27, 2012Publication date: February 27, 2014Applicant: VOLKSWAGEN VARTA Microbattery Forschungsgesellschaft mbH & Co. KGInventors: Konrad Holl, Markus Pompetzki, Robert Sekler, Heiner Stelzig, Stefan Stock
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Publication number: 20120164502Abstract: A galvanic element has a positive electrode, a negative electrode and a separator lying in between, wherein the separator consists at least partially of a polymer of which the melting and/or softening temperature is >200° C. A multi-layer separator for galvanic elements, in particular for lithium-ion batteries, includes at least one layer of the polymer with a melting and/or softening temperature >200° C.Type: ApplicationFiled: July 26, 2010Publication date: June 28, 2012Applicants: VOLKSWAGEN VARTA Microbattery Forschungsgesellschaft mbH & Co. KG, VARTA Microbattery GmbHInventors: Konrad Holl, Markus Pompetzki, Markus Kohlberger, Alfons Joas, Kemal Akca, Horst Wagner, Peter Haug, Arno Perner
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Publication number: 20100081049Abstract: 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.Type: ApplicationFiled: April 6, 2006Publication date: April 1, 2010Applicants: VARTA MICROBATTERY GMBH, ACREO ABInventors: Konrad Holl, Martin Krebs, Hartmut Weidenbacher, Bernd Kreidler, Hermann Löffelmann, Dejan Ilic, Magnus Berggren, Staffan Nordlinder, Linda Andersson, Lars-Olof Hennerdal, Anurak Sawatdee
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Publication number: 20090325062Abstract: A galvanic element having a housing including a housing cup, a housing cover, and a film seal that isolates the housing cup from the housing cover, wherein the housing cover includes a cover base, an adjacent cylindrical section and an adjacent edge section, and wherein the edge of the housing cover is bent around inwardly or outwardly in the edge section.Type: ApplicationFiled: November 30, 2006Publication date: December 31, 2009Inventors: Rolf Brenner, Bernd Kreidler, Dejan Ilic, Konrad Holl, Jürgen Ernsperger
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Publication number: 20090029203Abstract: 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.Type: ApplicationFiled: April 15, 2006Publication date: January 29, 2009Applicants: Varta Microbattery GmbH, Frauknhofer Gesellschaft zur Forderung der angewar idten Forschung e.V.Inventors: Stefan Wagner, Robert Hahn, Konrad Holl, Bernd Kreidler, Martin Krebs, Dejan Ilic
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Patent number: 7276092Abstract: 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: GrantFiled: March 15, 2004Date of Patent: October 2, 2007Assignee: Varta Microbattery GmbHInventors: Konrad Holl, Alfons Joas, Horst Wagner, Kemal Akca, Arno Perner, Dejan Ilic
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Patent number: 7157184Abstract: A method for producing electrode sheets for electrochemical elements which contain at least one lithium-intercalating electrode which is composed of a mixture of at least two copolymerized fluorized polymers in whose polymer matrix electrochemically active materials which are insoluble in the polymer are finely dispersed, the fluorized polymers are, having being dissolved as a solvent, mixed with electrochemically active materials, the resulting pasty substance is extruded to form a sheet and then laminated with a polyolefin separator, which is provided with a mixture of the two polymers, PVDF-HFP copolymers in each case being used as the polymer, and the proportion of HFP being less than about 8 percent by weight.Type: GrantFiled: May 22, 2002Date of Patent: January 2, 2007Assignee: Microbatterie GmbHInventors: Thomas Wöhrle, Peter Birke, Heinrich Stelzig, Konrad Holl, Dejan llic
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Patent number: 7141333Abstract: 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: GrantFiled: April 29, 2003Date of Patent: November 28, 2006Assignee: Varta Microbattery GmbHInventors: Peter Birke, Fatima Birke-Salam, Thomas Woehrle, Peter Haug, Konrad Holl, Heinrich Stelzig, Dejan Ilic
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Patent number: 7129002Abstract: 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: GrantFiled: April 28, 2003Date of Patent: October 31, 2006Assignee: Varta Microbattery GmbHInventors: Konrad Holl, Arno Perner, Horst Wagner, Rolf Hennrich, Dejan Ilic
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Publication number: 20050069776Abstract: A method of producing a rechargeable electrochemical element comprising introducing a negative electrode composed mainly of indium, an uncharged positive electrode having an active compound containing lithium, and an electrolyte into a housing; and applying a charge to form a negative lithium/indium electrode in the element.Type: ApplicationFiled: September 17, 2004Publication date: March 31, 2005Inventors: Konrad Holl, Arno Perner, Horst Wagner, Kemal Akca, Rolf Hennrich, Alfons Joas, 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