CA2342154A1 - Ceramic fuel cell - Google Patents

Ceramic fuel cell Download PDF

Info

Publication number
CA2342154A1
CA2342154A1 CA002342154A CA2342154A CA2342154A1 CA 2342154 A1 CA2342154 A1 CA 2342154A1 CA 002342154 A CA002342154 A CA 002342154A CA 2342154 A CA2342154 A CA 2342154A CA 2342154 A1 CA2342154 A1 CA 2342154A1
Authority
CA
Canada
Prior art keywords
ceramic
fuel cell
present
fuel
bismuth oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002342154A
Other languages
French (fr)
Other versions
CA2342154C (en
Inventor
William Nicholas Lawless
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEP Investments Inc
Original Assignee
Ceramphysics, Inc.
William Nicholas Lawless
Aep Emtech Llc
Aep Investments, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ceramphysics, Inc., William Nicholas Lawless, Aep Emtech Llc, Aep Investments, Inc. filed Critical Ceramphysics, Inc.
Publication of CA2342154A1 publication Critical patent/CA2342154A1/en
Application granted granted Critical
Publication of CA2342154C publication Critical patent/CA2342154C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90Selection of catalytic material
    • H01M4/9041Metals or alloys
    • H01M4/905Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
    • H01M4/9058Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC of noble metals or noble-metal based alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8605Porous electrodes
    • H01M4/8621Porous electrodes containing only metallic or ceramic material, e.g. made by sintering or sputtering
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90Selection of catalytic material
    • H01M4/9016Oxides, hydroxides or oxygenated metallic salts
    • H01M4/9025Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
    • H01M4/9033Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90Selection of catalytic material
    • H01M4/9041Metals or alloys
    • H01M4/905Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
    • H01M4/9066Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC of metal-ceramic composites or mixtures, e.g. cermets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/12Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/124Fuel 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
    • H01M8/1246Fuel 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 the electrolyte consisting of oxides
    • H01M8/1266Fuel 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 the electrolyte consisting of oxides the electrolyte containing bismuth oxide
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/24Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465Details of groupings of fuel cells
    • H01M8/2484Details of groupings of fuel cells characterised by external manifolds
    • H01M8/2485Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/12Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/1213Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/12Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/124Fuel 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
    • H01M8/1246Fuel 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 the electrolyte consisting of oxides
    • H01M8/1253Fuel 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 the electrolyte consisting of oxides the electrolyte containing zirconium oxide
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Composite Materials (AREA)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

A honeycomb ceramic fuel cell is provided including, among other things, (i) an yttria stabilized bismuth oxide oxygen ion conductive ceramic with zir-conia incorporated therein, (ii) a nio-bia stabilized bismuth oxide oxygen ion conductive ceramic, (iii) a copper cer-met anode electrode disposed in the fuel supply passage of a bismuth oxide ce-ramic fuel cell, or (iv) specially arranged inter-passage channels formed in the ce-ramic body of the fuel cell. In ac-cordance with one embodiment of the present invention, a ceramic fuel cell is provided comprising an oxidant supply passage, a cathode electrode disposed in the oxidant supply passage, a fuel sup-ply passage, an anode electrode disposed in the fuel supply passage, and a sta-bilized bismuth oxide oxygen ion con-ductive ceramic interposed between the cathode electrode and the anode elec-trode. The ceramic may be stabilized with yttria or niobia and may include zirconia. Fuel cells incorporating the ce-ramic compositions of the present inven-tion are operational at temperatures ator below about 650 °C. Thus, sooting of the ceramic body is not a problem if unreformed organic fuels are utilized in the present invention. According to certain embodiments of the present invention, a zirconia coating is interposed between the stabilized ceramic body and the anode electrode. Further, the ceramic electrodes (e.g. made of LXM whose L is La, M is MnO3, X is Pb, Sr, Ca or Ba) of the present invention may be provided with a silver overlay. The anode may also comprise a copper cermet.
CA002342154A 1998-06-12 1999-06-10 Ceramic fuel cell Expired - Fee Related CA2342154C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8916998P 1998-06-12 1998-06-12
US60/089,169 1998-06-12
PCT/US1999/013132 WO1999065099A2 (en) 1998-06-12 1999-06-10 Ceramic fuel cell

Publications (2)

Publication Number Publication Date
CA2342154A1 true CA2342154A1 (en) 1999-12-16
CA2342154C CA2342154C (en) 2009-04-07

Family

ID=22216093

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002342154A Expired - Fee Related CA2342154C (en) 1998-06-12 1999-06-10 Ceramic fuel cell

Country Status (12)

Country Link
US (1) US6372375B1 (en)
EP (1) EP1095418B1 (en)
JP (1) JP2002518794A (en)
CN (1) CN1308780A (en)
AT (1) ATE400905T1 (en)
AU (1) AU5082399A (en)
BR (1) BR9911169A (en)
CA (1) CA2342154C (en)
DE (1) DE69939061D1 (en)
MX (1) MXPA00012324A (en)
RU (1) RU2221315C2 (en)
WO (1) WO1999065099A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8007954B2 (en) 2000-11-09 2011-08-30 The Trustees Of The University Of Pennsylvania Use of sulfur-containing fuels for direct oxidation fuel cells

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU769575B2 (en) 1999-10-08 2004-01-29 Versa Power Systems Ltd. Composite electrodes for solid state electrochemical devices
WO2001048855A1 (en) * 1999-12-28 2001-07-05 Corning Incorporated Honeycomb electrode fuel cells
US7273671B2 (en) * 2000-05-08 2007-09-25 Honda Giken Kogyo Kabushiki Kaisha Fuel cell and method for making the same
AU2002230865A1 (en) * 2000-10-30 2002-05-15 Michael A. Cobb & Company Solid oxide fuel cells stack
WO2003005462A2 (en) * 2001-01-05 2003-01-16 Georgia Tech Research Corporation Hybrid monolithic fuel cell
US7285350B2 (en) * 2002-09-27 2007-10-23 Questair Technologies Inc. Enhanced solid oxide fuel cell systems
RU2236069C1 (en) * 2003-06-10 2004-09-10 Мятиев Ата Атаевич Bismuth oxide based electrode-electrolyte couple, its production method, and organogel
KR20060023582A (en) * 2003-06-30 2006-03-14 가부시키가이샤 저펜에너지 Fuel cell with reformer
JP4565817B2 (en) * 2003-07-30 2010-10-20 京セラ株式会社 Fuel cell container and fuel cell
EP1702376A1 (en) * 2003-12-24 2006-09-20 Pirelli & C. S.p.A. Solid oxide fuel cell
KR100804481B1 (en) 2006-09-29 2008-02-20 한국과학기술연구원 Preparation method of copper-based cermet anode for solid oxide fuel cell
KR100815207B1 (en) * 2006-11-09 2008-03-19 김영정 Solid oxide fuel cell
WO2008076231A2 (en) * 2006-12-13 2008-06-26 Strutt Peter R Electrode assembly for a solid oxide fuel cell and method for making the same
KR20100118571A (en) * 2007-12-31 2010-11-05 코닝 인코포레이티드 Devices and methods for honeycomb continuous flow reactors
US8632924B2 (en) * 2010-10-13 2014-01-21 Korea Institute Of Ceramic Engineering & Technology Solid oxide fuel cells and manufacturing method thereof
RU2522188C1 (en) * 2013-03-26 2014-07-10 Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук Double-layer supporting cathode manufacturing method for solid oxide fuel cells
RU2565600C1 (en) * 2014-04-23 2015-10-20 Акционерное общество "Научно-исследовательский институт конструкционных материалов на основе графита "НИИграфит" Heat resistant cellular structure
JP7345267B2 (en) * 2019-03-29 2023-09-15 大阪瓦斯株式会社 Electrochemical elements, electrochemical modules, electrochemical devices and energy systems

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400054A (en) 1966-03-15 1968-09-03 Westinghouse Electric Corp Electrochemical method for separating o2 from a gas; generating electricity; measuring o2 partial pressure; and fuel cell
US4195119A (en) 1978-11-21 1980-03-25 Ford Motor Company Fuel cell
US4296607A (en) 1979-04-13 1981-10-27 Corning Glass Works Cryogenic ceramic and apparatus
US4296608A (en) 1979-04-13 1981-10-27 Corning Glass Works Cryogenic ceramic and apparatus
US4231231A (en) 1979-04-13 1980-11-04 Corning Glass Works Cryogenic ceramic and apparatus
US4356235A (en) 1979-05-21 1982-10-26 Lawless William N Thallous and cesium halide materials for use in cryogenic applications
US4296147A (en) 1979-05-21 1981-10-20 William Nicholas Lawless Thallous halide materials for use in cryogenic applications
US4354355A (en) 1979-05-21 1982-10-19 Lake Shore Ceramics, Inc. Thallous halide materials for use in cryogenic applications
US4396721A (en) 1981-08-05 1983-08-02 Lawless William N Glass ceramic materials having controllable temperature coefficients of dielectric constant
US4404267A (en) * 1982-04-26 1983-09-13 General Electric Company Anode composite for molten carbonate fuel cell
US4515534A (en) 1982-09-30 1985-05-07 Lawless William N Miniature solid-state gas compressor
US4462891A (en) * 1983-02-07 1984-07-31 Lawless William N Oxygen sensor and high temperature fuel cells
US4547277A (en) 1983-02-07 1985-10-15 Lawless William N Oxygen separator
JPS59182271A (en) * 1983-03-31 1984-10-17 株式会社フジクラ Solid electrolyte and manufacture
US4599677A (en) 1984-06-01 1986-07-08 Lawless William N Capacitive energy storage device for use at cryogenic temperatures
US4545254A (en) 1984-06-01 1985-10-08 Ceramphysics, Inc. Materials and methods for pressure and temperature sensors at cryogenic temperatures
US4684207A (en) 1985-04-30 1987-08-04 Lawless William N Field dependent electrooptic device and method
US4918421A (en) 1986-03-20 1990-04-17 Lawless William N Nonlinear resistor for low temperature operation
US5212013A (en) 1986-06-30 1993-05-18 The United States Of America As Represented By The Secretary Of The Air Force Inorganic wire insulation for super-conducting wire
US5246729A (en) 1986-06-30 1993-09-21 United States Of America As Represented By The Secretary Of The Air Force Method of coating superconductors with inorganic insulation
JPS6386366A (en) * 1986-09-30 1988-04-16 Toshiba Corp Solid electrolyte fuel cell
US4948477A (en) 1987-11-06 1990-08-14 Carbotek, Inc. Integrated lunar materials manufacturing process
US5009763A (en) 1989-04-24 1991-04-23 Advanced Technologies Management, Inc. Honeycomb solid oxide electrolytic cell assembly and method
US5062911A (en) 1989-12-21 1991-11-05 Corning Incorporated Preparation of ceramic honeycomb structure having selectively sealed channels
US5034023A (en) 1989-12-21 1991-07-23 Corning Incorporated Ceramic honeycomb structures as oxygen separators or concentrators
US5205990A (en) 1990-08-02 1993-04-27 Lawless William N Oxygen generator having honeycomb structure
US5183965A (en) 1990-08-03 1993-02-02 Lawless William N Ceramic superconducting downlead
JPH04190566A (en) * 1990-11-22 1992-07-08 Tokyo Gas Co Ltd Seal binding agent composite for solid electrolyte fuel cell, seal binding using the same, and solid electrolyte fuel cell using the same method
US5222713A (en) 1992-01-21 1993-06-29 Ceramphysics Solid state regulator for natural gas
US5302258A (en) 1992-02-28 1994-04-12 Triox Technologies, Inc. Method and apparatus for separating oxygen from a gaseous mixture
US5273628A (en) * 1992-05-11 1993-12-28 Gas Research Institute Mixed ionic-electronic conductors for oxygen separation and electrocatalysis
ES2101920T3 (en) * 1992-11-05 1997-07-16 Siemens Ag PROCEDURE AND DEVICE FOR THE EVACUATION OF WATER AND / OR INERT GASES FROM A BATTERY OF FUEL CELLS.
US5273837A (en) * 1992-12-23 1993-12-28 Corning Incorporated Solid electrolyte fuel cells
US5403461A (en) * 1993-03-10 1995-04-04 Massachusetts Institute Of Technology Solid electrolyte-electrode system for an electrochemical cell
JPH0737596A (en) * 1993-07-23 1995-02-07 Mitsubishi Heavy Ind Ltd Flat plate type solid electrolyte electrolytic cell
JP3325378B2 (en) * 1994-02-25 2002-09-17 京セラ株式会社 Conductive ceramics and fuel cell using the same
US5807642A (en) 1995-11-20 1998-09-15 Xue; Liang An Solid oxide fuel cell stacks with barium and strontium ceramic bodies
DE69601838T2 (en) * 1995-07-28 1999-10-14 Nippon Telegraph & Telephone Fuel cell with solid oxide electrolytes
US5731097A (en) 1995-09-13 1998-03-24 Kabushiki Kaisha Meidensha Solid-electrolyte fuel cell
US5712055A (en) 1996-02-29 1998-01-27 Gas Research Institute Multi-stage fuel cell arrangement
US5905000A (en) 1996-09-03 1999-05-18 Nanomaterials Research Corporation Nanostructured ion conducting solid electrolytes
US6033457A (en) 1998-03-23 2000-03-07 Oxynet, Inc. Oxygen generator system and method of operating the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8007954B2 (en) 2000-11-09 2011-08-30 The Trustees Of The University Of Pennsylvania Use of sulfur-containing fuels for direct oxidation fuel cells

Also Published As

Publication number Publication date
WO1999065099A2 (en) 1999-12-16
EP1095418B1 (en) 2008-07-09
MXPA00012324A (en) 2004-12-03
CA2342154C (en) 2009-04-07
US6372375B1 (en) 2002-04-16
AU5082399A (en) 1999-12-30
ATE400905T1 (en) 2008-07-15
DE69939061D1 (en) 2008-08-21
CN1308780A (en) 2001-08-15
EP1095418A2 (en) 2001-05-02
JP2002518794A (en) 2002-06-25
BR9911169A (en) 2001-10-16
RU2221315C2 (en) 2004-01-10
WO1999065099A3 (en) 2000-04-13

Similar Documents

Publication Publication Date Title
CA2342154A1 (en) Ceramic fuel cell
CA2063518C (en) Solid electrolyte type fuel cell
US4547437A (en) Protective interlayer for high temperature solid electrolyte electrochemical cells
CA1301243C (en) High bulk self-supporting electrode with integral gas feed conduit for solid oxide fuel cells
US4725346A (en) Electrolyte assembly for oxygen generating device and electrodes therefor
AU729046B2 (en) Interconnector for SOFC fuel-cell piles
EP0320087B1 (en) Elongated electrochemical cell combinations
CA1207021A (en) High temperature solid electrolyte fuel cell with ceramic electrodes
US20090291346A1 (en) Solid oxide reversible fuel cell with improved electrode composition
US6004688A (en) Solid oxide fuel cell and doped perovskite lanthanum gallate electrolyte therefor
US8389180B2 (en) Electrolytic/fuel cell bundles and systems including a current collector in communication with an electrode thereof
US20060216575A1 (en) Perovskite materials with combined Pr, La, Sr, "A" site doping for improved cathode durability
JPWO2004088783A1 (en) Method for producing solid oxide fuel cell module
KR20000059873A (en) Single Cell and Stack Structure of Solid Oxide Fuel Cell
US5277995A (en) Electrode and method of interconnection sintering on an electrode of an electrochemical cell
JPH06188004A (en) Material for metal component of high-temperature fuel-cell equipment
EP3410523A1 (en) Electroconductive member, cell stack, module, and module storage device
US4598467A (en) Protective interlayer for high temperature solid electrolyte electrochemical cells
RU2001101170A (en) CERAMIC FUEL ELEMENT (OPTIONS)
CA2528298A1 (en) Fused zirconia-based solid oxide fuel cell
EP0714147A1 (en) High-temperature fuel cell with chromium-containing connecting elements between the electrochemical active plates
SE9802103L (en) New electrolytes made of composite ceramics for electricity-producing fuel cells
US4692274A (en) Protective interlayer for high temperature solid electrolyte electrochemical cells
EP0639866B1 (en) Stable air electrode for high temperature solid oxide electrolyte electrochemical cells
JPH03116659A (en) Solid electrolyte type fuel battery

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed