Patents by Inventor Ladislaus Dobrenizki
Ladislaus Dobrenizki 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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Publication number: 20240055618Abstract: A method for producing a bipolar plate for an electrochemical cell, wherein a fluid-impermeable carrier is provided and a fluid-impermeable coating is applied to at least one subregion of a surface of the carrier, wherein the coating is applied by at least one of cold gas spraying, plating, in particular roll cladding, or high-velocity flame spraying, in particular with air or oxygen as a combustion gas. A bipolar plate for an electrochemical cell.Type: ApplicationFiled: December 7, 2021Publication date: February 15, 2024Applicant: Schaeffler Technologies AG & Co. KGInventors: Mehmet Oete, Nazlim Bagcivan, Ladislaus Dobrenizki
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Patent number: 11870106Abstract: Layers for a bipolar plates are disclosed, as well as bipolar plates including the layers and fuel cells and/or electrolyzers including the bipolar plates. The layer may include a homogeneous or heterogeneous solid metallic solution or compound which either contains a first chemical element from the group of the noble metals in the form of iridium; or contains a first chemical element from the group of the noble metals in the form of iridium and a second chemical element from the group of the noble metals in the form of ruthenium. The layer may also include at least one further nonmetallic chemical element from the group consisting of nitrogen, carbon, boron, fluorine, and hydrogen.Type: GrantFiled: February 17, 2021Date of Patent: January 9, 2024Assignee: Schaeffler Technologies AG & Co. KGInventors: Ladislaus Dobrenizki, Tim Hosenfeldt, Yashar Musayev, Detlev Repenning
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Publication number: 20240003022Abstract: A component for an electrochemical cell, wherein the component is present in the form of an electrode for a redox-flow cell or in the form of a bipolar plate for a fuel cell or an electrolyzer or in the form of a fluid diffusion layer for an electrolyzer, including a substrate which is formed from a material in the form of a metal sheet and/or an expanded metal grille, wherein the material is formed from a tin-nickel alloy or a tin-silver alloy or a tin-zinc alloy or a tin-bismuth alloy or a tin-antimony alloy. A redox-flow cell, a fuel cell and an electrolyzer are also provided.Type: ApplicationFiled: October 11, 2021Publication date: January 4, 2024Applicant: Schaeffler Technologies AG & Co. KGInventors: Ladislaus DOBRENIZKI, Mehmet OETE, Bertram HAAG, Jan-Peter Viktor SCHINZEL, Jeevanthi VIVEKANANTHAN, Jan Martin STUMPF
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Publication number: 20230231151Abstract: A layer system (1) for coating a bipolar plate (2), including at least one cover layer (1a) made of tin oxide, wherein at least one metal oxide of the group comprising tantalum oxide, niobium oxide, titanium oxide, zirconium oxide, and hafnium oxide is homogenously dissolved in the tin oxide, and the electric conductivity of the cover layer (1a) is greater than or equal to 102 S/cm. A bipolar plate (2, 2?) is also provided with an anode side and a cathode side, comprising a substrate (2a, 2a?) and such a layer system (1), and to a fuel cell (10) or an electrolyzer comprising such a bipolar plate (2, 2?).Type: ApplicationFiled: February 21, 2020Publication date: July 20, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Moritz WEGENER, Jeevanthi VIVEKANANTHAN, Yashar MUSAYEV, Ladislaus DOBRENIZKI, Detlev REPENNING
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Publication number: 20230223559Abstract: A layer system for coating a metal substrate in order to form a flow field plate includes at least one cover layer made of metal oxide; at least one intermediate layer, which supports the cover layer; and a lower layer, which supports the intermediate layer(s). The cover layer is formed of indium tin oxide; wherein the indium tin oxide is optionally doped with at least one element from the group comprising carbon, nitrogen, boron, fluorine, hydrogen, silicon, titanium, tin and zirconium. At least one intermediate layer is formed of titanium nitride and/or titanium carbide and/or titanium carbonitride and/or titanium niobium nitride and/or titanium niobium carbide and/or titanium niobium carbonitride and/or chromium nitride and/or chromium carbide and/or chromium carbonitride. The lower layer is formed of titanium or a titanium-niobium alloy or chromium.Type: ApplicationFiled: April 16, 2021Publication date: July 13, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Moritz Wegener, Nazlim Bagcivan, Edgar Schulz, Ladislaus Dobrenizki, Jan Martin Stumpf, Romina Baechstaedt, Jeevanthi Vivekananthan
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Publication number: 20230223543Abstract: An anode for a magnesium battery, including a core element made from a core material, wherein a magnesium coating is at least partially arranged on a surface of the core element, a protective layer being arranged on a surface of the magnesium coating. A method for producing such an anode and a magnesium battery having at least one such anode are also provided.Type: ApplicationFiled: July 5, 2021Publication date: July 13, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Felix KAMPMANN, Jürgen REMMLINGER, Ladislaus DOBRENIZKI
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Publication number: 20220293960Abstract: An electrode unit (1, 1a, 1b), in particular for a redox flow cell (8), including at least one metallic substrate (2) and a coating (3) which is applied to the substrate (2), wherein the coating (3) includes at least one protective layer (4) which is formed from titanium-niobium nitride (TiNbN) and/or titanium-niobium carbide (TiNbC). A redox flow cell (8), in particular a redox flow battery, having at least one such electrode unit (1, 1a, 1b) is also provided.Type: ApplicationFiled: July 3, 2020Publication date: September 15, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Ladislaus DOBRENIZKI, Moritz WEGENER, Johannes LANDMANN, Tim HOSENFELDT
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Patent number: 11380908Abstract: A coating for a bipolar plate of a fuel cell or an electrolyzer contains a homogeneous or heterogeneous solid metal solution. The coating contains at least 15% Iridium and up to 84% Ruthenium with a total combined concentration of Iridium and Ruthenium of at least 99% (atomic). The coating also contains at least one of Nitrogen, Carbon, and Flourine. The coating may contain traces of Oxygen or Hydrogen. The coating may be used as part of a layer system that includes one or more undercoat layers and the coating as a covering layer.Type: GrantFiled: June 11, 2018Date of Patent: July 5, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Ladislaus Dobrenizki, Yashar Musayev, Tim Hosenfeldt, Detlev Repenning
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Patent number: 11313032Abstract: A layer system includes at least one bonding layer and a plurality of functional layers arranged on the at least one bonding layer. Each functional layer has a first nanolayer of a first metal nitride with a first metal constituent, and a metallic second nanolayer. Each functional layer has a layer thickness d in a range of 1 to 100 nm.Type: GrantFiled: December 4, 2017Date of Patent: April 26, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Edgar Schulz, Ladislaus Dobrenizki, Ricardo Henrique Brugnara, Oliver Witter
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Publication number: 20220045335Abstract: A fuel cell or an electrolyser includes at least one electrode and at least one polymer electrolyte membrane. The electrode includes a catalyst system comprising a carrier metal oxide and a catalyst material. The catalyst material is formed by an electrically conductive metal phosphate in the form of a metaphosphate of the general chemical formula Mezn+2(PnO3n+1)z, where Me=metal, z=valency of the metal Me, and n is within the range of 1 to 10.Type: ApplicationFiled: December 12, 2019Publication date: February 10, 2022Inventors: Moritz Wegener, Yashar Musayev, Jeevanthi Vivekananthan, Detlev Repenning, Ladislaus Dobrenizki
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Publication number: 20220006103Abstract: The invention relates to a catalyst system (9), an electrode (1) which comprises the catalyst system (9), and a fuel cell (10) or an electrolyzer having at least one such electrode (1). The catalyst system (9) comprises an electrically conductive carrier metal oxide and an electrically conductive, metal oxide catalyst material. A near-surface pH value, called pzzp value (pzzp=point of zero zeta potential), of the carrier metal oxide and the catalyst material differ. The catalyst material and the carrier metal oxide form an at least two-phase disperse oxide composite. The carrier metal oxide has a first crystal lattice structure comprising first oxygen lattice sites and first metal lattice sites, wherein the carrier metal oxide on the first oxygen lattice sites is preferably doped with at least one element from the group comprising nitrogen, carbon, and boron, and is optionally additionally doped with hydrogen.Type: ApplicationFiled: November 6, 2019Publication date: January 6, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Moritz WEGENER, Yahsar MUSAYEV, Jeevanthi VIVEKANANTHAN, Detlev REPENNING, Ladislaus DOBRENIZKI
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Publication number: 20210288331Abstract: A catalyst system comprises an electrically conductive carrier metal oxide and an electrically conductive, metal oxide catalyst material, wherein the carrier metal oxide and the catalyst material differ in their composition and wherein the catalyst material and the carrier metal oxide are each stabilized with fluorine. A near-surface pH value, designated pzzp value (pzzp=point of zero zeta potential), of the carrier metal oxide and of the catalyst material differ from one another, wherein the pzzp value of either the carrier metal oxide or the catalyst material is at most pH=5. The catalyst material and the carrier metal oxide form an at least two-phase disperse oxide composite. The catalysts system may be used in an electrode which may be used in a fuel cell or an electrolyzer.Type: ApplicationFiled: April 10, 2019Publication date: September 16, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Moritz Wegener, Yashar Musayev, Jeevanthi Vivekananthan, Detlev Repenning, Ladislaus Dobrenizki
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Publication number: 20210273238Abstract: A catalytic arrangement for an electrolyzer system or a fuel cell system includes a catalyst support unit and a catalyst layer, wherein the catalyst layer has a carbon matrix with a metal, non-metal and/or metalloid doping.Type: ApplicationFiled: May 29, 2019Publication date: September 2, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Jeevanthi Vivekananthan, Yashar Musayev, Edgar Schulz, Moritz Wegener, Ladislaus Dobrenizki
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Publication number: 20210175519Abstract: Layers for a bipolar plates are disclosed, as well as bipolar plates including the layers and fuel cells and/or electrolyzers including the bipolar plates. The layer may include a homogeneous or heterogeneous solid metallic solution or compound which either contains a first chemical element from the group of the noble metals in the form of iridium; or contains a first chemical element from the group of the noble metals in the form of iridium and a second chemical element from the group of the noble metals in the form of ruthenium. The layer may also include at least one further nonmetallic chemical element from the group consisting of nitrogen, carbon, boron, fluorine, and hydrogen.Type: ApplicationFiled: February 17, 2021Publication date: June 10, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Ladislaus Dobrenizki, Tim Hosenfeldt, Yashar Musayev, Detlev Repenning
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Patent number: 10985385Abstract: Layers for a bipolar plates are disclosed, as well as bipolar plates including the layers and fuel cells and/or electrolyzers including the bipolar plates. The layer may include a homogeneous or heterogeneous solid metallic solution or compound which either contains a first chemical element from the group of the noble metals in the form of iridium; or contains a first chemical element from the group of the noble metals in the form of iridium and a second chemical element from the group of the noble metals in the form of ruthenium. The layer may also include at least one further nonmetallic chemical element from the group consisting of nitrogen, carbon, boron, fluorine, and hydrogen.Type: GrantFiled: January 5, 2017Date of Patent: April 20, 2021Assignee: Schaeffler Technologies AG & Co. KGInventors: Ladislaus Dobrenizki, Tim Hosenfeldt, Yashar Musayev, Detlev Repenning
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Publication number: 20200365912Abstract: A coating for a bipolar plate of a fuel cell or an electrolyzer contains a homogeneous or heterogeneous solid metal solution. The coating contains at least 15% Iridium and up to 84% Ruthenium with a total combined concentration of Iridium and Ruthenium of at least 99% (atomic). The coating also contains at least one of Nitrogen, Carbon, and Flourine. The coating may contain traces of Oxygen or Hydrogen. The coating may be used as part of a layer system that includes one or more undercoat layers and the coating as a covering layer.Type: ApplicationFiled: June 11, 2018Publication date: November 19, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Ladislaus Dobrenizki, Yashar Musayev, Tim Hosenfeldt, Detlev Repenning
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Publication number: 20200216947Abstract: A method for producing components, in particular for energy systems such as fuel cells or electrolyzers, has the following steps: rolling-off a metal sheet having a thickness of less than 500 ?m, from a first roll; transporting the metal sheet through at least one coating plant in which the metal sheet is coated on at least one side by means of a physical and/or chemical vapor deposition process; performance of at least one forming process on the coated metal sheet; formation of a plurality of components by parting from the coated metal sheet; and rolling-up of the remaining coated metal sheet to give a second roll, with continuous transport of the metal sheet from the first roll to the second roll being carried out.Type: ApplicationFiled: July 27, 2018Publication date: July 9, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Moritz Wegener, Yashar Musayev, Ladislaus Dobrenizki
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Publication number: 20190338409Abstract: A layer system includes at least one bonding layer and a plurality of functional layers arranged on the at least one bonding layer. Each functional layer has a first nanolayer of a first metal nitride with a first metal constituent, and a metallic second nanolayer. Each functional layer has a layer thickness d in a range of 1 to 100 nm.Type: ApplicationFiled: December 4, 2017Publication date: November 7, 2019Applicant: Schaeffler Technologies AG & Co. KGInventors: Edgar Schulz, Ladislaus Dobrenizki, Ricardo Henrique Brugnara, Oliver Witter
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Publication number: 20190051913Abstract: Layers for a bipolar plates are disclosed, as well as bipolar plates including the layers and fuel cells and/or electrolyzers including the bipolar plates. The layer may include a homogeneous or heterogeneous solid metallic solution or compound which either contains a first chemical element from the group of the noble metals in the form of iridium; or contains a first chemical element from the group of the noble metals in the form of iridium and a second chemical element from the group of the noble metals in the form of ruthenium. The layer may also include at least one further nonmetallic chemical element from the group consisting of nitrogen, carbon, boron, fluorine, and hydrogen.Type: ApplicationFiled: January 5, 2017Publication date: February 14, 2019Applicant: Schaeffler Technologies AG & Co. KGInventors: Ladislaus Dobrenizki, Tim Hosenfeldt, Yashar Musayev, Detlev Repenning