JPH0529008A - Manufacture of solid electrolyte fuel cell - Google Patents

Manufacture of solid electrolyte fuel cell

Info

Publication number
JPH0529008A
JPH0529008A JP3208685A JP20868591A JPH0529008A JP H0529008 A JPH0529008 A JP H0529008A JP 3208685 A JP3208685 A JP 3208685A JP 20868591 A JP20868591 A JP 20868591A JP H0529008 A JPH0529008 A JP H0529008A
Authority
JP
Japan
Prior art keywords
solid electrolyte
air electrode
molded body
compact
fuel cell
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
JP3208685A
Other languages
Japanese (ja)
Inventor
Ryoichi Okuyama
良一 奥山
Eiichi Nomura
栄一 野村
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.)
Yuasa Corp
Original Assignee
Yuasa Corp
Yuasa Battery Corp
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 Yuasa Corp, Yuasa Battery Corp filed Critical Yuasa Corp
Priority to JP3208685A priority Critical patent/JPH0529008A/en
Priority to EP92900502A priority patent/EP0514552B1/en
Priority to PCT/JP1991/001701 priority patent/WO1992010862A1/en
Priority to US07/915,699 priority patent/US5290323A/en
Publication of JPH0529008A publication Critical patent/JPH0529008A/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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

PURPOSE:To control porosity of an air electrode and contraction of this compound compact in the case of baking by constituting a compound compact integrally composed of an electrolyte compact and the air electrode compact obtained by adding slurry including metallic oxide and organic substance powder to the electrolyte compact. CONSTITUTION:After an electrolyte compact is formed of slurry containing zirconia obtained by adding stabilizer, the slurry containing metallic oxide and organic substance powder is poured onto the electrolyte compact, and an air electrode compact is constituted, and a compound compact can be formed. Afterwards, it is backed, and a solid electrolyte/air electrode complex having an air electrodes 7 on one surface and a solid electrolyte film 8 on the other surface is formed. Since the solid electrolyte film 8 and the air electrode 7 can be constituted in one united body, its porosity and mechanical strength can be controlled optionally, so that high performance of a solid electrolyte fuel cell can be realized.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、固体電解質燃料電池の
製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a solid oxide fuel cell.

【０００２】[0002]

【従来の技術】固体電解質燃料電池としては、リン酸型
燃料電池、溶融炭酸塩型燃料電池と類似した構造の平板
型、米国のアルゴンヌ国立研究所によって提案されたモ
ノリシック型、日本の電子技術総合研究所によって開発
中の円筒多素子型、米国のウェスティングハウス社によ
って提案された円筒単素子型が知られているが、現在は
高温におけるガスシールの容易さ、スタック構成の容易
さの点でウェスティングハウス社の円筒単素子型が注目
されている。2. Description of the Related Art Solid electrolyte fuel cells include phosphoric acid fuel cells, flat-plate fuel cells having a structure similar to molten carbonate fuel cells, monolithic fuel cells proposed by Argonne National Laboratory in the United States, and Japanese electronic technology comprehensive. The cylindrical multi-element type being developed by the laboratory and the cylindrical single-element type proposed by Westinghouse, Inc. in the United States are known, but at the present time, Westin is easy to gas seal at high temperature and easy to construct a stack. Guhouse's cylindrical single element type is receiving attention.

【０００３】このような固体電解質燃料電池に用いられ
る固体電解質の製造方法としては、プラズマ溶射法、化
学蒸着法（ＣＶＤ）、電気化学蒸着法（ＥＶＤ）、有機
金属ジルコニウム塩の熱分解法などが知られているが、
緻密な固体電解質膜が得られる方法としては、プラズマ
溶射法、電気化学蒸着法（ＥＶＤ）があるのみである。As a method for producing a solid electrolyte used in such a solid electrolyte fuel cell, there are a plasma spraying method, a chemical vapor deposition method (CVD), an electrochemical vapor deposition method (EVD), a thermal decomposition method of an organometallic zirconium salt, and the like. Known,
The only methods for obtaining a dense solid electrolyte membrane are plasma spraying and electrochemical vapor deposition (EVD).

【０００４】さらに、上記のような緻密な固体電解質膜
を作成する方法としては、図５のように安定化ジルコニ
ア粉末３をスラリーにし、基材１上に塗布して焼成する
試みもなされている。Further, as a method of forming the dense solid electrolyte membrane as described above, an attempt has been made to make the stabilized zirconia powder 3 into a slurry as shown in FIG. .

【０００５】[0005]

【発明が解決しようとする課題】上記した前者の製造方
法では、高価な製造装置を必要とするうえに、固体電解
質膜を必要とする部分と必要としない部分とを構成する
マスキングに時間がかかるため、電池の量産性に問題が
あった。In the former manufacturing method described above, an expensive manufacturing apparatus is required, and it takes a long time to perform masking for forming a portion requiring the solid electrolyte membrane and a portion not requiring the solid electrolyte membrane. Therefore, there was a problem in mass productivity of the battery.

【０００６】また、後者の製造方法では、焼成時に安定
化ジルコニア粉末３が収縮するため、基材１の上に構成
された固体電解質膜８に割れ２を生じたり、固体電解質
膜８が剥離するという問題があった。Further, in the latter manufacturing method, the stabilized zirconia powder 3 shrinks during firing, so that cracks 2 occur in the solid electrolyte membrane 8 formed on the substrate 1 or the solid electrolyte membrane 8 peels off. There was a problem.

【０００７】[0007]

【課題を解決するための手段】上記課題を解決するた
め、本発明は、安定化剤を添加したジルコニアを含有す
るスラリーを成形して電解質成形体とする工程と、前記
電解質成形体の一方の面に、金属酸化物と有機物粉末と
を含有するスラリーを成形して空気極成形体を構成し、
電解質成形体と空気極成形体とを一体化した複合成形体
を得る工程と、この複合成形体を焼成して固体電解質−
空気極複合体を得る工程と、この固体電解質−空気極複
合体の固体電解質側に燃料極を形成することを特徴とす
るものである。In order to solve the above-mentioned problems, the present invention provides a step of forming a slurry containing a zirconia to which a stabilizer is added to form an electrolyte molded body, and one of the above-mentioned electrolyte molded bodies. On the surface, to form a cathode molded body by molding a slurry containing a metal oxide and an organic powder,
A step of obtaining a composite molded body in which an electrolyte molded body and an air electrode molded body are integrated, and a solid electrolyte by firing the composite molded body
It is characterized by the step of obtaining an air electrode composite and forming a fuel electrode on the solid electrolyte side of this solid electrolyte-air electrode composite.

【０００８】[0008]

【作用】上記のように、本発明は、空気極成形体中に含
有させた有機物粉末により、電解質成形体と空気極成形
体とを一体化した複合成形体を焼成して固体電解質−空
気極複合体とする時、前記有機物粉末が酸化されて水蒸
気、一酸化炭素もしくは二酸化炭素等として外部に放出
されるので、含有させる有機物粉末の量をコントロール
すると、空気極側の収縮を固体電解質膜側の収縮に近似
させることができる。As described above, according to the present invention, the solid electrolyte-air electrode is manufactured by firing the composite molded body in which the electrolyte molded body and the air electrode molded body are integrated with each other by the organic substance powder contained in the air electrode molded body. When forming a composite, the organic powder is oxidized and released to the outside as water vapor, carbon monoxide, carbon dioxide or the like. Can be approximated by the contraction of.

【０００９】また、有機物粉末の粒度をコントロールす
ることにより、空気極側の多孔度を変化させることがで
きる。By controlling the particle size of the organic powder, the porosity on the air electrode side can be changed.

【００１０】さらに、本発明は、複合成形体を焼成して
いるので、空気極の強度が高まり基材としての作用もす
る。Furthermore, according to the present invention, since the composite molded body is fired, the strength of the air electrode is increased, and it also functions as a base material.

【００１１】[0011]

【実施例】図１は、本発明の固体電解質燃料電池の製造
方法によって形成した電解質成形体５の断面図で、石膏
のような吸水性を有する材料からなる型４に安定化剤と
してのイットリアを添加したジルコニア、水、分散材、
バインダー、消泡剤からなるスラリーを流し込んで一定
時間放置した後、余剰のスラリーを除去した状態を示
す。EXAMPLE FIG. 1 is a cross-sectional view of an electrolyte molding 5 formed by the method for manufacturing a solid oxide fuel cell of the present invention, in which a mold 4 made of a material having a water absorbing property such as gypsum is used as a stabilizer for yttria. Added zirconia, water, dispersant,
A state in which a surplus slurry is removed after pouring a slurry composed of a binder and an antifoaming agent and leaving it for a certain period of time is shown.

【００１２】図２は、前記電解質成形体５の一方の面、
すなわち内側の面に空気極成形体６を形成した状態の断
面図で、金属酸化物と有機物粉末としてのテフロン粉末
とを含有するスラリーを電解質成形体５の内側の面に流
し込んで一定時間放置した後、余剰のスラリーを除去し
て電解質成形体５と空気極成形体６とを一体化した複合
成形体を形成した状態を示す。FIG. 2 shows one surface of the electrolyte molded body 5,
That is, in a cross-sectional view of a state where the air electrode molded body 6 is formed on the inner surface, a slurry containing a metal oxide and Teflon powder as an organic powder is poured into the inner surface of the electrolyte molded body 5 and left for a certain period of time. After that, a state in which an excessive slurry is removed to form a composite molded body in which the electrolyte molded body 5 and the air electrode molded body 6 are integrated with each other is shown.

【００１３】図３は、図２の複合成形体を乾燥させて型
４を除去した後焼成して得た固体電解質−空気極複合体
の断面図で、内側に多孔性の空気極７が、外側に緻密な
固体電解質膜８が形成される。FIG. 3 is a cross-sectional view of a solid electrolyte-air electrode composite obtained by drying the composite molded body of FIG. 2 to remove the mold 4 and then firing it, in which the porous air electrode 7 is inside. A dense solid electrolyte membrane 8 is formed on the outside.

【００１４】前記複合成形体の焼成時、空気極成形体６
中に含有させたテフロン粉末は酸化されて一酸化炭素も
しくは二酸化炭素、水蒸気、フッ化水素として外部に放
出されるので、含有させるテフロン粉末の量を増加させ
ると、空気極７側の収縮率は大きくなる。これに対し
て、固体電解質膜８側の収縮率はほぼ一定であるから、
空気極成形体６中に含有させるテフロン粉末の量をコン
トロールし、空気極７側の収縮率を固体電解質膜８側の
収縮率に近似させると、多孔性の空気極７と緻密な固体
電解質膜８とを同時に製造することができる。At the time of firing the composite molded body, the air electrode molded body 6
The Teflon powder contained therein is oxidized and released to the outside as carbon monoxide or carbon dioxide, water vapor, and hydrogen fluoride. Therefore, if the amount of Teflon powder contained is increased, the shrinkage rate on the air electrode 7 side will decrease. growing. On the other hand, since the shrinkage rate on the solid electrolyte membrane 8 side is almost constant,
By controlling the amount of Teflon powder contained in the air electrode molded body 6 so that the shrinkage rate on the air electrode 7 side is approximated to the shrinkage rate on the solid electrolyte membrane 8 side, a porous air electrode 7 and a dense solid electrolyte membrane are formed. 8 and 8 can be manufactured simultaneously.

【００１５】一方、添加するイットリアの量に応じてジ
ルコニアを立方晶ジルコニア、正方晶ジルコニア、部分
安定化ジルコニアにすることができ、固体電解質膜８の
強度をコントロールすることができるので、前述したテ
フロン粉末の量のコントロールと併用することにより、
複合成形体の焼成時の割れや剥離を防止することがで
き、固体電解質−空気極複合体の性能を向上させること
ができる。On the other hand, zirconia can be cubic zirconia, tetragonal zirconia, or partially stabilized zirconia depending on the amount of yttria to be added, and the strength of the solid electrolyte membrane 8 can be controlled. By using it together with the powder amount control,
The composite molded body can be prevented from cracking or peeling during firing, and the performance of the solid electrolyte-air electrode composite can be improved.

【００１６】また、含有させるテフロンに代えて、スラ
リーに対して難溶性である塩化ビニル、ナイロン、アク
リル等の粉末を用いても同様の効果を得ることができ
る。The same effect can be obtained by using a powder of vinyl chloride, nylon, acrylic or the like, which is hardly soluble in the slurry, instead of Teflon to be contained.

【００１７】図４は、前記固体電解質−空気極複合体の
固体電解質膜８の外側に燃料極９として、Ｎｉ−ＺｒＯ
2 サーメットをデイッピング法によって形成した状態の
断面図、すなわち本発明の製造方法によって得られた固
体電解質燃料電池の断面図である。なお、燃料極９の形
成方法としては、デイッピング法以外にスラリー塗布
法、溶射法等があり、特に限定するものでないことは言
うまでもない。In FIG. 4, Ni-ZrO is used as a fuel electrode 9 outside the solid electrolyte membrane 8 of the solid electrolyte-air electrode composite.
FIG. 1 is a cross-sectional view of a state in which a 2 cermet is formed by a dipping method, that is, a cross-sectional view of a solid oxide fuel cell obtained by the manufacturing method of the present invention. It is needless to say that the method for forming the fuel electrode 9 includes a slurry coating method, a thermal spraying method, and the like other than the dipping method and is not particularly limited.

【００１８】こうして得られた図４のような固体電解質
燃料電池を作動温度である７００℃から１０００℃に昇
温し、燃料極９側に燃料を、空気極７側に空気を供給す
ると、燃料によって燃料極９中の酸化ニッケルが還元さ
れる。When the solid electrolyte fuel cell thus obtained as shown in FIG. 4 is heated from the operating temperature of 700 ° C. to 1000 ° C. and fuel is supplied to the fuel electrode 9 side and air to the air electrode 7 side, Thereby, nickel oxide in the fuel electrode 9 is reduced.

【００１９】従って、図４の燃料極９と空気極７とを外
部回路に接続すると、空気極７から取り入れられた酸素
は外部回路から供給される電子を取り込んで酸素イオン
となり、この酸素イオンは固体電解質膜８を通って固体
電解質膜８と燃料極９との界面に到達する。Therefore, when the fuel electrode 9 and the air electrode 7 of FIG. 4 are connected to an external circuit, the oxygen taken in from the air electrode 7 takes in the electrons supplied from the external circuit to become oxygen ions, and these oxygen ions The solid electrolyte membrane 8 reaches the interface between the solid electrolyte membrane 8 and the fuel electrode 9.

【００２０】一方、この界面には燃料極９中を拡散して
きた水素もしくは一酸化炭素が存在し、この水素もしく
は一酸化炭素と前記酸素イオンとが反応して水蒸気およ
び二酸化炭素を生成するとともに、外部回路に電子を放
出するので、外部回路には空気極７を正極、燃料極９を
負極とした起電力が生じ、電池としての作用がなされる
ことになる。On the other hand, hydrogen or carbon monoxide that has diffused in the fuel electrode 9 is present at this interface, and the hydrogen or carbon monoxide reacts with the oxygen ions to generate water vapor and carbon dioxide, and Since electrons are emitted to the external circuit, an electromotive force is generated in the external circuit with the air electrode 7 as the positive electrode and the fuel electrode 9 as the negative electrode, and the cell functions.

【００２１】以上の説明は、型４を用いて複合成形体を
形成しているが、カレンダーロール法やテープキャステ
ィング法を用いてスラリーをテープ状に成形すれば平板
型の複合成形体を形成できることは言うまでもない。In the above description, the mold 4 is used to form the composite molded body, but it is possible to form a flat plate-shaped composite molded body by molding the slurry into a tape using the calendar roll method or the tape casting method. Needless to say.

【００２２】[0022]

【発明の効果】上記した如く、本発明は緻密な固体電解
質膜８と多孔性の空気極７とが容易に形成でき、その多
孔度は含有させる有機物粉末の粒度をコントロールする
ことによって変化させることができ、その機械的強度は
含有させる有機物粉末の量をコントロールすることによ
って変化させることができるので、高性能な固体電解質
燃料電池が得られる。As described above, according to the present invention, the dense solid electrolyte membrane 8 and the porous air electrode 7 can be easily formed, and the porosity can be changed by controlling the particle size of the organic powder to be contained. Since its mechanical strength can be changed by controlling the amount of organic powder to be contained, a high performance solid electrolyte fuel cell can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図１】型４にスラリーを流し込んで一定時間放置して
電解質成形体５とした後、余剰のスラリーを除去した状
態の断面図である。FIG. 1 is a cross-sectional view of a state where a slurry is poured into a mold 4 and left for a certain period of time to form an electrolyte molded body 5, and then excess slurry is removed.

【図２】図１の電解質成形体５の上にスラリーを流し込
んで一定時間放置して空気極成形体６とした後、余剰の
スラリーを除去して複合成形体とした状態の断面図であ
る。FIG. 2 is a cross-sectional view of a state where a slurry is poured onto the electrolyte molded body 5 of FIG. 1 and left for a certain period of time to form an air electrode molded body 6, and then excess slurry is removed to form a composite molded body. .

【図３】図２の複合成形体から型４を除去した後焼成し
て得た固体電解質−空気極複合体の断面図である。3 is a cross-sectional view of a solid electrolyte-air electrode composite body obtained by firing after removing the mold 4 from the composite molded body of FIG.

【図４】固体電解質−空気極複合体の外側に燃料極９を
形成した状態の断面図である。FIG. 4 is a cross-sectional view showing a state in which a fuel electrode 9 is formed outside the solid electrolyte-air electrode composite.

【図５】従来の固体電解質燃料電池の製造方法により製
造された固体電解質膜８の断面図である。FIG. 5 is a cross-sectional view of a solid electrolyte membrane 8 manufactured by a conventional method for manufacturing a solid electrolyte fuel cell.

【符号の説明】[Explanation of symbols]

４ 型 ５ 電解質成形体 ６ 空気極成形体 ７ 空気極 ８ 固体電解質膜 ９ 燃料極 Type 4 5 Electrolyte compact 6 Air electrode molded body 7 air pole 8 Solid electrolyte membrane 9 Fuel pole

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 安定化剤を添加したジルコニアを含有す
るスラリーを成形して電解質成形体とする工程と、前記
電解質成形体の一方の面に、金属酸化物と有機物粉末と
を含有するスラリーを成形して空気極成形体を構成し、
電解質成形体と空気極成形体とを一体化した複合成形体
を得る工程と、この複合成形体を焼成して固体電解質−
空気極複合体を得る工程と、この固体電解質−空気極複
合体の固体電解質側に燃料極を形成することを特徴とす
る固体電解質燃料電池の製造方法。1. A step of forming a slurry containing zirconia to which a stabilizer is added to form an electrolyte compact, and a slurry containing a metal oxide and an organic powder on one surface of the electrolyte compact. Mold to form a cathode molded body,
A step of obtaining a composite molded body in which an electrolyte molded body and an air electrode molded body are integrated, and a solid electrolyte by firing the composite molded body
A method for producing a solid electrolyte fuel cell, comprising the steps of obtaining an air electrode composite and forming a fuel electrode on the solid electrolyte side of the solid electrolyte-air electrode composite. 【請求項２】 有機物粉末は、テフロン粉末、塩化ビニ
ル粉末、ナイロン粉末、アクリル粉末等であることを特
徴とする請求項第１項記載の固体電解質燃料電池の製造
方法。2. The method for producing a solid electrolyte fuel cell according to claim 1, wherein the organic powder is Teflon powder, vinyl chloride powder, nylon powder, acrylic powder or the like. 【請求項３】 安定化剤を添加したジルコニアは立方晶
ジルコニア、正方晶ジルコニア、部分安定化ジルコニア
の単独物もしくは複数種の混合物からなることを特徴と
する請求項第１項記載の固体電解質燃料電池の製造方
法。3. The solid electrolyte fuel according to claim 1, wherein the zirconia to which the stabilizer is added comprises cubic zirconia, tetragonal zirconia, partially stabilized zirconia alone or as a mixture of plural kinds. Battery manufacturing method. 【請求項４】 安定化剤は、イットリウム、カルシウ
ム、スカンジウム、イッテルビウム、ネオジウム、ガド
リニウムの酸化物であることを特徴とする請求項第１項
記載の固体電解質燃料電池の製造方法。4. The method for producing a solid electrolyte fuel cell according to claim 1, wherein the stabilizer is an oxide of yttrium, calcium, scandium, ytterbium, neodymium, or gadolinium. 【請求項５】 金属酸化物は、希土類またはアルカリ土
類金属を添加したＬａＭｎＯ3 、ＬａＣｏＯ3 、ＣａＭ
ｎＯ3 であることを特徴とする請求項第１項記載の固体
電解質燃料電池の製造方法。5. The metal oxide is LaMnO 3 , LaCoO 3 , CaM to which a rare earth or alkaline earth metal is added.
Claim method for producing a solid electrolyte fuel cell of claim 1 wherein characterized in that it is a nO 3. 【請求項６】 焼成は、空気中または酸素を含む雰囲気
中で行うことを特徴とする請求項第１項記載の固体電解
質燃料電池の製造方法。6. The method for producing a solid oxide fuel cell according to claim 1, wherein the firing is performed in air or an atmosphere containing oxygen. 【請求項７】 燃料極は、Ｎｉ−ＺｒＯ2 サーメット、
Ｃｏ−ＺｒＯ2 サーメットであることを特徴とする請求
項第１項記載の固体電解質燃料電池の製造方法。7. The fuel electrode is Ni—ZrO 2 cermet,
The method for producing a solid oxide fuel cell according to claim 1, which is a Co-ZrO 2 cermet.
JP3208685A 1990-12-10 1991-07-24 Manufacture of solid electrolyte fuel cell Pending JPH0529008A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP3208685A JPH0529008A (en) 1991-07-24 1991-07-24 Manufacture of solid electrolyte fuel cell
EP92900502A EP0514552B1 (en) 1990-12-10 1991-12-09 Method for manufacturing solid-state electrolytic fuel cell
PCT/JP1991/001701 WO1992010862A1 (en) 1990-12-10 1991-12-09 Method for manufacturing solid-state electrolytic fuel cell
US07/915,699 US5290323A (en) 1990-12-10 1991-12-09 Manufacturing method for solid-electrolyte fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3208685A JPH0529008A (en) 1991-07-24 1991-07-24 Manufacture of solid electrolyte fuel cell

Publications (1)

Publication Number Publication Date
JPH0529008A true JPH0529008A (en) 1993-02-05

Family

ID=16560378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3208685A Pending JPH0529008A (en) 1990-12-10 1991-07-24 Manufacture of solid electrolyte fuel cell

Country Status (1)

Country Link
JP (1) JPH0529008A (en)

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