JPH0582143A - Manufacture of solid electrolyte fuel cell - Google Patents
Manufacture of solid electrolyte fuel cellInfo
- Publication number
- JPH0582143A JPH0582143A JP3270055A JP27005591A JPH0582143A JP H0582143 A JPH0582143 A JP H0582143A JP 3270055 A JP3270055 A JP 3270055A JP 27005591 A JP27005591 A JP 27005591A JP H0582143 A JPH0582143 A JP H0582143A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- molded body
- fuel cell
- composite
- solid 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000446 fuel Substances 0.000 title claims description 31
- 239000007784 solid electrolyte Substances 0.000 title description 2
- 239000003792 electrolyte Substances 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 230000008602 contraction Effects 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 30
- 239000007787 solid Substances 0.000 claims description 18
- 238000010304 firing Methods 0.000 claims description 12
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002518 antifoaming agent Substances 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract description 2
- 239000002270 dispersing agent Substances 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000007750 plasma spraying Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010344 co-firing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、固体電解質型燃料電池
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】固体電解質型燃料電池としては、リン酸
型燃料電池、溶融炭素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ンハウス社
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ン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 As solid oxide fuel cells, phosphoric acid fuel cells, flat-plate fuel cells having a structure similar to that of molten carbon salt fuel cells, monolithic fuel cells proposed by Argonne National Laboratory in the United States, and Japanese electronic technology The cylindrical multi-element type being developed by the Research Institute and the cylindrical single-element type proposed by Westinhouse of the United States are known, but at the present time, they are easy to gas seal at high temperature and easy to stack. Therefore, the cylindrical single element type of Westin House is attracting attention.
【０００３】このような固体電解質型燃料電池の製造方
法としては、円筒多素子型ではプラズマ溶射法、円筒単
素子型では電気化学蒸着法（ＥＶＤ法）が提案されてお
り、平板型、モノリシック型ではカレンダーロール法、
テープキャスチング法、スラリー焼付け法等の湿式法が
提案されている。As a method of manufacturing such a solid oxide fuel cell, a plasma spraying method has been proposed for a cylindrical multi-element type and an electrochemical vapor deposition method (EVD method) for a cylindrical single-element type has been proposed, including a flat plate type and a monolithic type. Then the calendar roll method,
Wet methods such as a tape casting method and a slurry baking method have been proposed.
【０００４】これらの製造方法の内、円筒型の固体電解
質型燃料電池に主に用いられてきたプラズマ溶射法、Ｅ
ＶＤ法は、高価な装置が必要であり、コストが高く、マ
スキングに時間がかかるなどの欠点を有していた。ま
た、主に平板型、モノリシック型に用いられてきた前記
湿式法は比較的生産性もよく、コストも安いという利点
があったが、この方法は円筒型の固体電解質型燃料電池
の製造に応用することができなかった。Among these manufacturing methods, the plasma spraying method, E, which has been mainly used for cylindrical solid oxide fuel cells, is used.
The VD method has drawbacks such that an expensive device is required, the cost is high, and masking takes time. Further, the wet method mainly used for the flat plate type and the monolithic type has the advantages of relatively good productivity and low cost, but this method is applied to the production of a cylindrical solid oxide fuel cell. I couldn't.
【０００５】さらに、湿式法で平板型、モノリシック型
の固体電解質型燃料電池を製造する際に、電極、電解
質、およびインターコネクタのグリーンシートを積層
し、これを一度に焼成する同時焼成法も提案されている
が、円筒型電池ではすでに焼結しているアルミナ、若し
くはカルシウム安定化ジルコニアの多孔質基体管の上に
ＥＶＤ法やプラズマ溶射法で電極および電解質を積層す
るため、このような同時焼成は行なうことが出来なかっ
た。Further, when a flat plate type or monolithic type solid oxide fuel cell is manufactured by a wet method, a green sheet for electrodes, an electrolyte and an interconnector is laminated and a simultaneous firing method is proposed in which the green sheets are fired at once. However, in the cylindrical battery, since the electrode and the electrolyte are laminated by the EVD method or the plasma spraying method on the porous substrate tube of alumina or calcium-stabilized zirconia that has already been sintered, such simultaneous firing is required. Could not be done.
【０００６】本発明者らは、特願平２−４０９９９７
号、特願平３−２９５３９号で示したように、スラリー
を連続して吸水性の型の中へ流し込んで成形し、これを
同時に焼成することによって円筒状の固体電解質型燃料
電池を製造する方法を提案した。また、特願平２−４１
０９５号、特願平３−２９５４０号に示したように電極
と電解質の収縮率を調整する手段として、電極スラリー
中に炭素粉末を添加し、電極の収縮をコントロールし、
電解質の収縮率と電極の収縮率をマッチングさせる方法
を提案した。The inventors of the present invention have filed Japanese Patent Application No. 2-409997.
As shown in Japanese Patent Application No. 3-29539, the slurry is continuously poured into a water-absorbing mold to be molded, and the resulting mixture is simultaneously fired to produce a cylindrical solid oxide fuel cell. Suggested a method. In addition, Japanese Patent Application No. 2-41
As disclosed in Japanese Patent Application No. 095 and Japanese Patent Application No. 3-29540, as a means for adjusting the shrinkage ratio of the electrode and the electrolyte, carbon powder is added to the electrode slurry to control the shrinkage of the electrode,
A method to match the contraction rate of the electrolyte with that of the electrode was proposed.
【０００７】[0007]
【発明が解決しようとする課題】前記湿式法が行われて
きた平板型、モノリシック型の固体電解質型燃料電池で
は、その断面構造が基本的には１次元的であるため、電
解質、電極、インターコネクタの各層を同時に焼成しよ
うとする場合、その焼成過程各温度における収縮率を図
４のように完全に一致させてやらなければ、焼成中及び
焼成後に電池にそりが発生したり、割れ、ひびが起った
りる原因となった。また、このように各構成要素の収縮
率を一致させるためには焼結助剤の添加、原料粒度の調
整を行なわねばならず製造コストを高めていた。In the flat plate type and monolithic type solid electrolyte type fuel cells which have been subjected to the above-mentioned wet method, the cross-sectional structure thereof is basically one-dimensional, and therefore, the electrolyte, the electrodes and the When the layers of the connector are to be fired at the same time, if the shrinkage ratios at each temperature during the firing process are not perfectly matched as shown in Fig. 4, the battery may warp, crack, or crack during and after firing. Caused a problem. Further, in order to make the shrinkage ratios of the respective constituents coincide with each other, it is necessary to add a sintering aid and adjust the grain size of the raw material, thus increasing the manufacturing cost.
【０００８】それ故、本発明の目的は湿式法による固体
電解質型燃料電池の製造方法において電池にそり、割
れ、およびひびが生じない簡単な製造方法を提供するこ
とにある。Therefore, it is an object of the present invention to provide a simple method for manufacturing a solid oxide fuel cell by a wet method, in which warping, cracking and cracking of the cell do not occur.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明の固体電解質型燃料電池の製造方法は、平板
型、モノリシック型ではなく、円筒型の固体電解質型燃
料電池に湿式法による同時焼成法を用いるもので、焼成
過程の途中で、管の外側に設けた電解質層１の収縮率を
管の内側に設けた空気極層２の収縮率より大とし、最終
焼結温度で前記電解質層１と前記空気極層２の収縮率を
一致させるか、若しくは前記電解質層１の収縮率を前記
空気極層２の収縮率より小とすることを特徴とするもの
である。In order to achieve the above object, a method for producing a solid oxide fuel cell according to the present invention is not a flat plate type or a monolithic type but a cylindrical solid oxide fuel cell by a wet method. The co-firing method is used. In the middle of the firing process, the shrinkage rate of the electrolyte layer 1 provided outside the tube is made higher than the shrinkage rate of the air electrode layer 2 provided inside the tube, and at the final sintering temperature, The shrinkage rate of the electrolyte layer 1 and the air electrode layer 2 are made to coincide with each other, or the shrinkage rate of the electrolyte layer 1 is made smaller than the shrinkage rate of the air electrode layer 2.
【００１０】そして、前記空気極の代わりに燃料極を用
いてもよい。また、前記最終焼結温度は、１２００℃か
ら１６００℃の範囲にあることが好ましい。A fuel electrode may be used instead of the air electrode. The final sintering temperature is preferably in the range of 1200 ° C to 1600 ° C.
【００１１】[0011]
【作 用】円筒型の固体電解質型燃料電池では、図６に
示すように２次元的な断面構造であるため、外側の層９
の収縮率が内側の層１０の収縮率に対して大きい場合、
図６の矢印方向に引張り応力がかかるが、その応力が円
周方向に対して均一であるため、その焼成過程において
は割れ、ひびを起こし難い。しかし、このままの状態で
温度を下げると、外側の層９に対して図６の矢印方向に
引っ張り応力がかかるため、冷却中に割れ、ひびが起こ
る。従って、焼成過程の終了時では、外側の層９と内側
の層１０との収縮率が等しくなるか、前記焼成過程とは
逆に小となるようにすると、温度を下げた時外側の層９
に対して圧縮応力がかかり、外側の層９の強度が増加
し、冷却中に割れ、ひびが生じ難くなる。[Operation] Since the cylindrical solid oxide fuel cell has a two-dimensional cross-sectional structure as shown in Fig. 6, the outer layer 9
Is greater than the shrinkage of the inner layer 10,
Although tensile stress is applied in the direction of the arrow in FIG. 6, since the stress is uniform in the circumferential direction, cracks and cracks are unlikely to occur during the firing process. However, if the temperature is lowered in this state, tensile stress is applied to the outer layer 9 in the direction of the arrow in FIG. 6, so that cracks and cracks occur during cooling. Therefore, at the end of the firing process, if the outer layer 9 and the inner layer 10 have the same contraction rate or are set to have a small shrinkage in the opposite direction to the firing process, the outer layer 9 is reduced when the temperature is lowered.
A compressive stress is applied to the outer layer 9 to increase the strength of the outer layer 9, and cracks and cracks are less likely to occur during cooling.
【００１２】これは、多角形管型の固体電解質型燃料電
池でも同様である。また、最終焼結温度は、電解質であ
る安定化ジルコニアがガスのリークを生じない充分な焼
結密度を得るために、１２００℃から１６００℃の範囲
にあることが望ましい。The same applies to a polygonal tube type solid oxide fuel cell. Further, the final sintering temperature is preferably in the range of 1200 ° C. to 1600 ° C. so that the stabilized zirconia as an electrolyte can obtain a sufficient sintering density without causing gas leakage.
【００１３】[0013]
【実施例】本発明の一実施例を図面を参照して説明す
る。図１と図２は、本発明の固体電解質型燃料電池の製
造工程を示す説明図で、図１は石膏のような吸水性を有
する材料からなる型３に安定化剤としてイットリアを添
加したジルコニア、水、分散剤、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て電解質成形体１を成形した断面図
である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 and 2 are explanatory views showing a manufacturing process of a solid oxide fuel cell of the present invention. FIG. 1 is a zirconia obtained by adding yttria as a stabilizer to a mold 3 made of a material having a water absorbing property such as gypsum. FIG. 3 is a cross-sectional view in which a slurry of water, a dispersant, a binder, and a defoaming agent is poured and left for a certain period of time, and then the excess slurry is removed to mold the electrolyte molded body 1.
【００１４】図２は、図１の電解質成形体１の内側に空
気極成形体または燃料極成形体２を形成した断面図で、
金属酸化物と炭素粉末を含有するスラリーを電解質成形
体１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１と空気極（または
燃料極）成形体２とを一体化し、複合成形体４を得る。
次いで、該複合成形体４を型３から取り出し、炉の中に
入れ焼成し、電解質−空気極（または燃料極）複合体５
を得る。この複合体５の断面図を図３に示す。FIG. 2 is a cross-sectional view in which an air electrode molded body or a fuel electrode molded body 2 is formed inside the electrolyte molded body 1 of FIG.
A slurry containing a metal oxide and carbon powder is poured into the inner surface of the electrolyte molded body 1 and left for a certain period of time, and then the excess slurry is removed to remove the electrolyte molded body 1 and the air electrode (or fuel electrode) molded body 2. And are integrated to obtain a composite molded body 4.
Next, the composite molded body 4 is taken out from the mold 3, put in a furnace and fired, and an electrolyte-air electrode (or fuel electrode) composite 5 is obtained.
To get A cross-sectional view of this composite body 5 is shown in FIG.
【００１５】ここで、収縮率をコントロールするために
炭素粉末を添加したが、焼結助剤の添加等を行ってもよ
い。また、図５に本実施例で用いた電解質、空気極およ
びそれらの複合体の収縮率のカーブ６、７、８を示す。
図５から分るように電解質と空気極の収縮率は一致せ
ず、大きいところでは約１０％も異なっているにもかか
わらず、本発明の方法によって、ひび、割れを生ぜず良
好な複合体５を得ることが出来た。このような条件で収
縮率をコントロールすることは、従来の平板型、モノリ
シック型で行なわれてきた図５のような各層の収縮率の
カーブ６、７、８を完全に一致する方法に比べてはるか
に容易である。Here, the carbon powder is added to control the shrinkage, but a sintering aid may be added. In addition, FIG. 5 shows curves 6, 7, and 8 of contraction rates of the electrolyte, the air electrode, and their composites used in this example.
As can be seen from FIG. 5, although the electrolyte and the air electrode do not have the same shrinkage and differ by about 10% in the large area, the method of the present invention does not cause cracks or cracks and is a good composite material. I got 5. Controlling the shrinkage ratio under such conditions is more effective than the conventional flat plate type or monolithic type in which the shrinkage ratio curves 6, 7, and 8 of the respective layers shown in FIG. Much easier.
【００１６】[0016]
【発明の効果】以上説明したように、本発明は筒状の固
体電解質型燃料電池の同時焼成において、収縮率を簡単
にコントロールするだけで、電解質層にひび、割れが発
生しなくなる。As described above, according to the present invention, when co-firing a cylindrical solid oxide fuel cell, the electrolyte layer is free from cracks and cracks simply by controlling the shrinkage ratio.
【図１】本発明の製造工程を示す説明図である。FIG. 1 is an explanatory view showing a manufacturing process of the present invention.
【図２】本発明の他の製造工程を示す説明図である。FIG. 2 is an explanatory view showing another manufacturing process of the present invention.
【図３】本発明により作製した電解質−空気極複合体の
断面図である。FIG. 3 is a cross-sectional view of an electrolyte-air electrode composite produced according to the present invention.
【図４】従来の焼成温度と電解質、空気極およびそれら
の複合体の収縮率との関係を示す特性図であるFIG. 4 is a characteristic diagram showing the relationship between the conventional firing temperature and the contraction rate of an electrolyte, an air electrode and a composite thereof.
【図５】本発明の焼成温度と電解質、空気極およびそれ
らの複合体の収縮率との関係を示す特性図である。FIG. 5 is a characteristic diagram showing the relationship between the firing temperature of the present invention and the shrinkage rates of the electrolyte, the air electrode and their composites.
【図６】本発明の作用を示す説明図である。FIG. 6 is an explanatory diagram showing the operation of the present invention.
１ 電解質成形体 ２ 空気極成形体または燃料極成形体 ４ 複合成形体 ５ 電解質−空気極（または燃料極）複合体 DESCRIPTION OF SYMBOLS 1 Electrolyte molded body 2 Air electrode molded body or fuel electrode molded body 4 Composite molded body 5 Electrolyte-air electrode (or fuel electrode) composite body
Claims (3)
るスラリーを円筒管状もしくは多角形管状に成形して電
解質成形体（１）とする工程と、前記電解質成形体
（１）の内側に金属酸化物を含有するスラリーを形成
し、電解質成形体（１）と空気極成形体（２）を一体化
した複合成形体（４）を得る工程と、該複合成形体
（４）を焼成して電解質−空気極複合体（５）を得る工
程とからなる固体電解質型燃料電池の製造方法におい
て、前記焼成の途中で管の外側に設けた前記電解質成形
体（１）の収縮率を内側に設けた前記空気極成形体
（２）の収縮率より大とし、最終焼結温度で前記電解質
成形体（１）と前記空気極成形体（２）の収縮率を一致
させるか、若しくは前記電解質成形体（１）の収縮率を
前記空気極成形体（２）の収縮率より小とすることを特
徴とする固体電解質型燃料電池の製造方法。1. A step of forming a slurry containing zirconia to which a stabilizer is added into a cylindrical tubular shape or a polygonal tubular shape to form an electrolyte molded body (1), and metal oxidation on the inside of the electrolyte molded body (1). A step of forming a slurry containing a substance to obtain a composite molded body (4) in which the electrolyte molded body (1) and the air electrode molded body (2) are integrated, and the composite molded body (4) is fired to form an electrolyte. In the method for producing a solid oxide fuel cell, which comprises a step of obtaining an air electrode composite body (5), the shrinkage rate of the electrolyte molded body (1) provided outside the tube during the firing is provided inside. The contraction rate of the electrolyte molded body (2) is made larger than that of the cathode molded body (2) so that the contraction rates of the electrolyte molded body (1) and the cathode molded body (2) are matched at the final sintering temperature, or the electrolyte molded body ( The shrinkage ratio of 1) is calculated from the shrinkage ratio of the air electrode molded body (2). A method for manufacturing a solid oxide fuel cell, which is characterized in that it is small.
ことを特徴とする固体電解質型燃料電池の製造方法。2. A method for manufacturing a solid oxide fuel cell, wherein a fuel electrode is used instead of the air electrode according to claim 1.
００℃から１６００℃の範囲にあることを特徴とする固
体電解質型燃料電池の製造方法。3. The final firing temperature according to claim 1 or 2,
A method for producing a solid oxide fuel cell, which is in the range of 00 ° C to 1600 ° C.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3270055A JPH0582143A (en) | 1991-09-20 | 1991-09-20 | Manufacture of solid electrolyte fuel cell |
| US07/915,699 US5290323A (en) | 1990-12-10 | 1991-12-09 | Manufacturing method for solid-electrolyte fuel cell |
| PCT/JP1991/001701 WO1992010862A1 (en) | 1990-12-10 | 1991-12-09 | Method for manufacturing solid-state electrolytic fuel cell |
| EP92900502A EP0514552B1 (en) | 1990-12-10 | 1991-12-09 | Method for manufacturing solid-state electrolytic fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3270055A JPH0582143A (en) | 1991-09-20 | 1991-09-20 | Manufacture of solid electrolyte fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0582143A true JPH0582143A (en) | 1993-04-02 |
Family
ID=17480894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3270055A Pending JPH0582143A (en) | 1990-12-10 | 1991-09-20 | Manufacture of solid electrolyte fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0582143A (en) |
-
1991
- 1991-09-20 JP JP3270055A patent/JPH0582143A/en active Pending
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