WO2023135315A3 - Membran-elektroden-verbund mit elektrolyt beinhaltend lithiiertes eisenoxid und wenigstens ein karbonat - Google Patents

Membran-elektroden-verbund mit elektrolyt beinhaltend lithiiertes eisenoxid und wenigstens ein karbonat Download PDF

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Publication number
WO2023135315A3
WO2023135315A3 PCT/EP2023/050924 EP2023050924W WO2023135315A3 WO 2023135315 A3 WO2023135315 A3 WO 2023135315A3 EP 2023050924 W EP2023050924 W EP 2023050924W WO 2023135315 A3 WO2023135315 A3 WO 2023135315A3
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WO
WIPO (PCT)
Prior art keywords
electrolyte
oxygen
liquid
hydrogen
carbonate salt
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PCT/EP2023/050924
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English (en)
French (fr)
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WO2023135315A2 (de
Inventor
Martin Konrad
Stephan Köhne
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KS iPR UG (haftungsbeschränkt)
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Publication of WO2023135315A2 publication Critical patent/WO2023135315A2/de
Publication of WO2023135315A3 publication Critical patent/WO2023135315A3/de

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M8/144—Fuel cells with fused electrolytes characterised by the electrolyte material
    • H01M8/145—Fuel cells with fused electrolytes characterised by the electrolyte material comprising carbonates
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C25B1/042—Hydrogen or oxygen by electrolysis of water by electrolysis of steam
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
    • H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0289—Means for holding the electrolyte
    • H01M8/0295—Matrices for immobilising electrolyte melts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
    • H01M2004/8689—Positive electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M2008/147—Fuel cells with molten carbonates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0048—Molten electrolytes used at high temperature
    • H01M2300/0051—Carbonates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Fuel Cell (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Elektrolyt Membran und zugehörige Elektrolyse-Zelle beziehungsweise Elektrolyse-Stack zur Herstellung von Wasserstoff und Sauerstoff aus Wasserdampf mit Hilfe von elektrischer Energie und/oder einer zugehörigen Brennstoffzelle beziehungsweise Brennstoffzellen-Stack zur Herstellung von elektrischer Energie mit Hilfe von Wasserstoff und Sauerstoff unter Verwendung einer Redoxreaktion von in einem flüssigen Alkalicarbonatsalz gelösten lithiierten Eisenoxid - Eisen. Die Membran zur Spaltung von Wasserdampf in Wasserstoff und Sauerstoff, besteht in der erfindungsgemäßen Ausführung aus einem neuartigen lithiiertes Eisenoxid Elektrolyten der in einer flüssigen Alkalicarbonatsalz-Mischung allgemein auch Carbonatschmelze genannt, in der sich unter anderem Lithiumcarbonat befindet, gelöst ist. Der Elektrolyt und das flüssige Carbonatsalz werden in einer hitzefesten nicht leitenden Matrix beispielsweise aus Lithiumaluminat LiAIO2 und/oder einem anderen hitzebeständigen Material mit Kapillarwirkung eingebunden. Der neuartige und flüssige Elektrolyt und das flüssige Carbonatsalz wird dabei durch die Kapillarwirkung in der Matrix gehalten, so dass diese Einheit eine Membran bildet die mit einer Anodenseite und Kathodenseite und einer Verteilerstruktur für die Zuführung und Abführung der Einsatzmedien Wasserdampf, Wasserstoff und Sauerstoff für die elektrochemische Reaktion realisiert werden kann ohne, dass diese den Elektrolyten austragen.
PCT/EP2023/050924 2022-01-17 2023-01-17 Membran-elektroden-assembly WO2023135315A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022000153.5 2022-01-17
DE102022000153.5A DE102022000153A1 (de) 2022-01-17 2022-01-17 Elektrolyt membran zur trennung von wasserdampf in wasserstoff und sauerstoff mit hilfe von elektrischer energie und/oder erzeugung von elektrischer energie mit hilfe von wasserstoff und sauerstoff durch eine lithiierte eisenoxid - eisen redoxreaktion in einem flüssigen carbonatsalz

Publications (2)

Publication Number Publication Date
WO2023135315A2 WO2023135315A2 (de) 2023-07-20
WO2023135315A3 true WO2023135315A3 (de) 2024-01-11

Family

ID=85018687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/050924 WO2023135315A2 (de) 2022-01-17 2023-01-17 Membran-elektroden-assembly

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DE (1) DE102022000153A1 (de)
WO (1) WO2023135315A2 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992342A (en) * 1985-04-19 1991-02-12 Energy Research Corporation Stabilized carbonate fuel cell cathode
US20180131017A1 (en) * 2016-11-04 2018-05-10 Fuelcell Energy, Inc. Stable electrolyte matrix for molten carbonate fuel cells

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340665A (en) 1992-09-03 1994-08-23 Ceramatec, Inc. Creep resistant, metal-coated LiFeO2 anodes for molten carbonated fuel cells
WO2011140209A2 (en) 2010-05-04 2011-11-10 The George Washington University Processes for iron and steel production
US20140072836A1 (en) 2011-04-05 2014-03-13 Blacklight Power, Inc. H2o-based electrochemical hydrogen-catalyst power system
US20160215405A1 (en) 2013-08-16 2016-07-28 Csir Molten salt electrolysis apparatus and process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992342A (en) * 1985-04-19 1991-02-12 Energy Research Corporation Stabilized carbonate fuel cell cathode
US20180131017A1 (en) * 2016-11-04 2018-05-10 Fuelcell Energy, Inc. Stable electrolyte matrix for molten carbonate fuel cells

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WO2023135315A2 (de) 2023-07-20
DE102022000153A1 (de) 2023-07-20

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