JPS579070A - Formation of electrolyte holding matrix for fuel cell - Google Patents

Formation of electrolyte holding matrix for fuel cell

Info

Publication number
JPS579070A
JPS579070A JP8143580A JP8143580A JPS579070A JP S579070 A JPS579070 A JP S579070A JP 8143580 A JP8143580 A JP 8143580A JP 8143580 A JP8143580 A JP 8143580A JP S579070 A JPS579070 A JP S579070A
Authority
JP
Japan
Prior art keywords
paste
electrode
acid
phosphoric
oxidizing
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.)
Pending
Application number
JP8143580A
Other languages
Japanese (ja)
Inventor
Masahito Takeuchi
Shinpei Matsuda
Koki Tamura
Kenzo Ishii
Toshiki Kahara
Seiji Takeuchi
Hideo Okada
Jinichi Imahashi
Shigeru Okabe
Hiroshi Hida
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8143580A priority Critical patent/JPS579070A/en
Publication of JPS579070A publication Critical patent/JPS579070A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01M8/0293—Matrices for immobilising electrolyte solutions
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

PURPOSE:To obtain a uniformly thin matrix homogeneously impregnated with phosphoric acid by mixing a matrix body with a phosphoric-acid electrolyte, before the mixture is heated and directly applied to the surface of either a fuel electrode or an oxidizing-agent electrode. CONSTITUTION:Silicon carbide having a grain diameter of 0.1-10mum is added and mixed with 85-100wt% of orthophosphoric acid, before the mixture is heated at 150-200 deg.C and is adequately ground down, thus a homogeneous silicon-carbide phosphoric-acid paste being prepared. Thus prepared paste is applied to the surface of either a fuel electrode or an oxidizing-agent electrode by a brushing method or the like so as to make the paste to be interposed between these electrodes. By the means mentioned above, the internal resistance can be reduced since the electrode is tightly coated with the paste film having a uniformly small thickness. In addition, any gas generation due to a reaction between phosphoric acid and impurities can be prevented by giving sufficiently high bubble pressure to prevent reaction gases from reacting with the paste film, and by subjecting the electrode coated with the paste film to heat treatment process.
JP8143580A 1980-06-18 1980-06-18 Formation of electrolyte holding matrix for fuel cell Pending JPS579070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8143580A JPS579070A (en) 1980-06-18 1980-06-18 Formation of electrolyte holding matrix for fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8143580A JPS579070A (en) 1980-06-18 1980-06-18 Formation of electrolyte holding matrix for fuel cell

Publications (1)

Publication Number Publication Date
JPS579070A true JPS579070A (en) 1982-01-18

Family

ID=13746305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8143580A Pending JPS579070A (en) 1980-06-18 1980-06-18 Formation of electrolyte holding matrix for fuel cell

Country Status (1)

Country Link
JP (1) JPS579070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61259460A (en) * 1985-05-10 1986-11-17 Fuji Electric Co Ltd Matrix for phosphoric-acid fuel cell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229933A (en) * 1975-09-02 1977-03-07 United Technologies Corp Fuel cell having electrolyte holding matrix composed of silicon carbide
JPS5485350A (en) * 1977-12-19 1979-07-06 Sanyo Electric Co Fuel cell

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229933A (en) * 1975-09-02 1977-03-07 United Technologies Corp Fuel cell having electrolyte holding matrix composed of silicon carbide
JPS5485350A (en) * 1977-12-19 1979-07-06 Sanyo Electric Co Fuel cell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61259460A (en) * 1985-05-10 1986-11-17 Fuji Electric Co Ltd Matrix for phosphoric-acid fuel cell

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