Patents by Inventor Michael Holzapfel

Michael Holzapfel 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).

  • Patent number: 12098457
    Abstract: Coated substrate comprising a surface coated with a coating comprising at least one coating layer of (TM1?xAlx)OyNz with (0.75?y)?z?(1.2?y) and 0.6>y>0, exhibiting a solid solution with B1 cubic structure, wherein x is the content of aluminum in atomic fraction if only aluminum and TM are being considered for the determination of the element composition in atomic percentage, and y is the content of oxygen in atomic fraction if only 0 and N are being considered for the determination of the element composition in atomic percentage, wherein TM is one or more transition metals and 0.05<x<0.95, wherein y correspond to a value of oxygen concentration in the TM1?xAlxOyNz coating layer that produces an increment of the thermal stability in such a manner that no precipitation of w-AlN phase is produced when the coated substrate or at least the coated surface of the coated substrate is exposed to temperatures higher than 1100° C.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 24, 2024
    Assignee: Oerlikon Surface Solutions AG, Pfäffikon
    Inventors: Anders Olof Eriksson, Siva Phani Kumar Yalamanchili, Mirjam Arndt, Damian Mauritius Holzapfel, Jochen Michael Schneider
  • Publication number: 20220371632
    Abstract: A wheelset bearing for a rail vehicle has a generator which is designed as a claw-pole generator, which includes at least one non-rotating claw ring, as well as a sensor system supplied with electrical energy by the generator The sensor system has a plurality of sensor system modules which are at least partially fastened to a sensor carrier placed on the claw ring and which are connected to a common data line.
    Type: Application
    Filed: December 9, 2019
    Publication date: November 24, 2022
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Sebastian Pachner, Bert Rosenheinrich, Michael Holzapfel
  • Patent number: 10063054
    Abstract: An arrangement for power management in an energy distribution system, a method for power management in an energy distribution system and an arrangement for implementing the method for power management in the energy distribution system, wherein a feed/return unit and a control unit are provided, where the control unit is configured to sense a present actual system state and to take the sensed actual system state as a basis for prompting energy output or energy intake (energy out/intake, energy feed/return) by the feed/return unit in order to allow continuous correction and dynamic support of an energy distribution system or in an energy distribution system.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: August 28, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Günter Heid, Peter Michael Holzapfel, Thomas Pflugfelder
  • Patent number: 9748557
    Abstract: The present invention relates to a method for producing lithium aluminum titanium phosphates of the general formula Li1+xTi2?xAlx(PO4)3, wherein x is ?0.4, a method for their production as well as their use as solid-state electrolytes in lithium ion accumulators.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: August 29, 2017
    Assignee: Johnson Matthey PLC
    Inventors: Michael Holzapfel, Max Eisgruber, Gerhard Nuspl
  • Patent number: 9550188
    Abstract: A method of reducing magnetic and/or oxidic contaminants in lithium metal oxygen compounds in particle form, in order to obtain purified lithium metal oxygen compounds, by means of treatment in a grinding process and sifting process with continuous or non-continuous removal and obtaining of the purified lithium metal oxygen compound. The grinding process and sifting process are terminated prematurely before the residue amounts to less than 1% of the quantity m. The residue, containing contaminants, is discarded.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: January 24, 2017
    Assignee: Johnson Matthey PLC
    Inventors: Michael Holzapfel, Christian Vogler
  • Publication number: 20160268593
    Abstract: The present invention relates to a method for producing a lithium transition metal oxygen compound free from magnetic and solid contaminants which is obtained by a combination of different isolation steps integrated into the production method. The isolation of solid and magnetic particles from the compound can be achieved through targeted use of different isolation steps. The material has improved electronic properties as active material in electrodes of lithium-ion batteries because of the very high purity.
    Type: Application
    Filed: January 18, 2013
    Publication date: September 15, 2016
    Inventors: Christian Vogler, Peter Bauer, Gerhard Nuspl, Michael Holzapfel, Oemer Goeknur
  • Patent number: 9385364
    Abstract: The present invention relates to a process for the synthesis of a carbon-deposited alkali metal oxyanion cathode material comprising particles, wherein said particles carry, on at least a portion of the particle surface, carbon deposited by pyrolysis, said process comprising a dry high-energy milling step performed on precursors of said carbon-deposited alkali metal oxyanion prior to a solid-state thermal reaction.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: July 5, 2016
    Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Guoxian Liang, Jasmin Dufour, Michael Holzapfel, Christophe Michot
  • Patent number: 9242871
    Abstract: The present invention relates to a nanoparticulate composition comprising nanoparticles with a particle-size distribution of d90?10 ?m, and optionally a surface-active agent. The present invention further relates to a method for the production of such a nanoparticulate composition.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: January 26, 2016
    Assignee: Johnson Matthey PLC
    Inventors: Michael Holzapfel, Andreas Laumann, Peter Bauer, Christian Vogler, Guoxian Liang
  • Publication number: 20150372348
    Abstract: The field of the invention relates to an electrochemical cell electrolyte, an electrochemical cell comprising this electrochemical cell electrolyte, a method for manufacturing an electrochemical cell and use of the electrochemical cell electrolyte and the electrochemical cell. The electrochemical cell electrolyte comprises an electrolyte salt, an electrolyte solvent and an electrolyte additive wherein the electrolyte solvent is selected from the group comprising cyclic ethers, linear ethers, lactones, acetonitrile or sulfolane.
    Type: Application
    Filed: January 28, 2014
    Publication date: December 24, 2015
    Inventors: Hilmi Buqa, Michael Holzapfel
  • Patent number: 9187336
    Abstract: Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: November 17, 2015
    Assignee: Sued-Chemie IP GmbH & Co. KG
    Inventors: Michael Holzapfel, Andreas Laumann, Gerhard Nuspl, Karl Fehr, Florian Kiefer
  • Publication number: 20150303482
    Abstract: The field of the invention relates to the reduction of gassing in a lithium titanate cell, a method for the preparation of electrodes leading to reduced gassing, manufacturing of a titanate-based lithium cell comprising such electrodes and the manufactured electrochemical cell. The invention provides a method for the preparation of an electrode for a lithium titanate cell comprising the use of fluorine acrylic hybrid latex for the preparation of at least one electrode of an electrochemical cell.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 22, 2015
    Inventors: Hilmi Buqa, Michael Holzapfel, Sabine Wussler, Werner Scheifele, Erika Studenik, Pierre Blanc
  • Publication number: 20150236339
    Abstract: The present invention relates to a method for producing lithium aluminium titanium phosphates of the general formula Li1+xTi2?xAlx(PO4)3, wherein x is ?0.4, a method for theft production as we as theft use as solid-state electrolytes in lithium on accumulators.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 20, 2015
    Applicant: Sued-Chemie IP GmbH & Co. KG
    Inventors: Michael HOLZAPFEL, Max EISGRUBER, Gerhard NUSPL
  • Patent number: 9085491
    Abstract: A carbon-containing lithium titanium oxide containing spherical particle aggregate with a diameter of 1-80 ?m, consisting of lithium titanium oxide primary particles coated with carbon. Also, a method for the production of such a carbon-containing lithium titanium oxide as well as an electrode containing such a carbon-containing lithium titanium oxide as active material as well as a lithium-ion secondary battery containing an above-described electrode.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: July 21, 2015
    Assignee: Sued-Chemie IP GmbH & Co. KG
    Inventors: Jasmin Dollinger, Andreas Pollner, Michael Holzapfel, Nicolas Tran, Norbert Schall, Max Eisgruber
  • Publication number: 20150155714
    Abstract: An arrangement for power management in an energy distribution system, a method for power management in an energy distribution system and an arrangement for implementing the method for power management in the energy distribution system, wherein a feed/return unit and a control unit are provided, where the control unit is configured to sense a present actual system state and to take the sensed actual system state as a basis for prompting energy output or energy intake (energy out/intake, energy feed/return) by the feed/return unit in order to allow continuous correction and dynamic support of an energy distribution system or in an energy distribution system.
    Type: Application
    Filed: February 13, 2013
    Publication date: June 4, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventors: Güenter Heid, Peter Michael Holzapfel, Thomas Pflugfelder
  • Publication number: 20140370186
    Abstract: The present invention relates to a process for the synthesis of a carbon-deposited alkali metal oxyanion cathode material comprising particles, wherein said particles carry, on at least a portion of the particle surface, carbon deposited by pyrolysis, said process comprising a dry high-energy milling step performed on precursors of said carbon-deposited alkali metal oxyanion prior to a solid-state thermal reaction.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Guoxian LIANG, Jasmin DUFOUR, Michael HOLZAPFEL, Christophe MICHOT
  • Publication number: 20140312269
    Abstract: The present invention relates to a doped lithium titanium spinel with formula I Li4?yK?yTi5?zK?zO12?xAx (I), wherein A is on or more anions selected from the group is consisting I, N, Br, Cl, F, K?, K? are each one or more cations selected from the group consisting of Na, K, Cd, Se, Te, S, Sb, As, P, Pb, Bi, Hg, Si, C and 0?x, y, z?0.4. Further, the present invention relates to an electrode comprising a layer of such lithium titanium spinel and a secondary non-aqueous electrolyte battery with such an electrode.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 23, 2014
    Applicant: CLARIANT INTERNATIONAL, LTD.
    Inventors: Andreas Laumann, Michael Holzapfel, Genovefa Wendrich
  • Publication number: 20140209834
    Abstract: Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: SUED-CHEMIE IP GMBH & CO. KG
    Inventors: Michael Holzapfel, Andreas Laumann, Gerhard Nuspl, Karl Fehr, Florian Kiefer
  • Publication number: 20140175687
    Abstract: A carbon-containing lithium titanium oxide containing spherical particle aggregate with a diameter of 1-80 ?m, consisting of lithium titanium oxide primary particles coated with carbon. Also, a method for the production of such a carbon-containing lithium titanium oxide as well as an electrode containing such a carbon-containing lithium titanium oxide as active material as well as a lithium-ion secondary battery containing an above-described electrode.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: SUED-CHEMIE IP GMBH & CO., KG
    Inventors: Jasmin Dollinger, Andreas Pollner, Michael Holzapfel, Nicolas Tran, Norbert Schall, Max Eisgruber
  • Patent number: 8673502
    Abstract: The invention relates to a process for producing coated carbon particles, which comprises coating electrically conductive carbon particles with elemental doped or undoped silicon by chemical vapor deposition from at least one gaseous silane in an oxygen-free gas atmosphere in a reaction space, with the electrically conductive carbon particles being in continual motion during the vapor deposition, and also correspondingly coated carbon particles and their use in anode materials for lithium ion batteries.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: March 18, 2014
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Frank-Martin Petrat, Hartmut Wiggers, Burkhard Reeken, Michael Holzapfel, Hilmi Buqa, Petr Novak
  • Publication number: 20140038058
    Abstract: A method is indicated for producing a lithium titanium mixed oxide, comprising the provision of a mixture of titanium dioxide and a lithium compound, calcining of the mixture, and grinding of the mixture in an atmosphere with a dew point <?50° C. A lithium titanium mixed oxide and a use of same are also indicated. In addition, an anode and a solid electrolyte for a secondary lithium-ion battery, as well as a corresponding secondary lithium-ion battery are provided.
    Type: Application
    Filed: February 29, 2012
    Publication date: February 6, 2014
    Applicant: Clariant Produkte (Deutschland) GmbH
    Inventors: Michael Holzapfel, Gerhard Nuspl