JPS62154572A - Manufacture of molten carbonate fuel cell - Google Patents

Manufacture of molten carbonate fuel cell

Info

Publication number
JPS62154572A
JPS62154572A JP60295419A JP29541985A JPS62154572A JP S62154572 A JPS62154572 A JP S62154572A JP 60295419 A JP60295419 A JP 60295419A JP 29541985 A JP29541985 A JP 29541985A JP S62154572 A JPS62154572 A JP S62154572A
Authority
JP
Japan
Prior art keywords
powder
anode
wood pulp
fuel cell
molten carbonate
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
JP60295419A
Other languages
Japanese (ja)
Other versions
JPH0548580B2 (en
Inventor
Hirozo Matsumoto
浩造 松本
Tomio Sugiyama
富夫 杉山
Kazuo Koseki
小関 和雄
Junji Nakamura
中村 淳次
Ikumasa Nishimura
生眞 西村
Goro Saito
悟朗 斉藤
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.)
Fuji Electric Co Ltd
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Fuji Electric Corporate Research and Development 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 Toppan Printing Co Ltd, Fuji Electric Corporate Research and Development Ltd filed Critical Toppan Printing Co Ltd
Priority to JP60295419A priority Critical patent/JPS62154572A/en
Publication of JPS62154572A publication Critical patent/JPS62154572A/en
Publication of JPH0548580B2 publication Critical patent/JPH0548580B2/ja
Granted 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
    • H01M4/88Processes of manufacture
    • H01M4/8878Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882Heat treatment, e.g. drying, baking
    • 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
    • H01M4/88Processes of manufacture
    • H01M4/8878Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8882Heat treatment, e.g. drying, baking
    • H01M4/8885Sintering or firing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/14Fuel cells with fused electrolytes
    • H01M2008/147Fuel cells with molten carbonates
    • 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

Abstract

PURPOSE:To obtain a molten carbonate fuel cell capable of retaining good performance over a long period of time by using a nickel electrode plate having high electrochemical activity, as an anode, obtained by forming slurry by mixing nickel powder and wood pulp to the water, and adding a coagulating agent in the slurry, then making a plate with a paper machine, then sintering it at high temperature. CONSTITUTION:Water is added to nickel powder and wood pulp which is organic cellulose so that its adding amount is 5-30 times more based on the solid content by weight, then they are mixed to produce slurry suitable for mixing a sheet with a paper machine and a coagulating agent is added to the slurry to coagulate the powder to the pulp, then a sheet is manufacutured by a paper machine. The sheet is heated at high temperature to gasify the wood pulp and the coagulating agent to remove them, and at the same time, to sinter the nickel powder. Thereby, an anode comprising a porous nickel plate is formed. A unit cell for molten carbonate fuel cell is formed by placing an electrolyte tile between this anode and a cathode.

Description

【発明の詳細な説明】 〔発明の属する技術分野〕 この発明は、アノードおよびカソードからなる一対のガ
ス拡散性電極と、これら電極に挾持された電解値タイル
とを有する溶融炭酸塩燃料電池に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a molten carbonate fuel cell having a pair of gas diffusive electrodes, an anode and a cathode, and an electrolytic value tile sandwiched between the electrodes.

〔従来技術とその問題点〕[Prior art and its problems]

溶融炭酸塩燃料電池(以下本文ではM、 CF Cとい
う)は、動作温度が高く、腐食性の高い溶融炭酸塩を使
用している。よって電池構成部材の一つである電極には
種々の要求性能が課せられている。
Molten carbonate fuel cells (hereinafter referred to as M, CFC) use molten carbonate, which has a high operating temperature and is highly corrosive. Therefore, various performance requirements are imposed on the electrode, which is one of the battery components.

MCFCの電極、特に本発明に関するアノード電極に対
する一般的な要求特性をまとめると以下のようになる。
The general required characteristics for MCFC electrodes, particularly for anode electrodes related to the present invention, are summarized as follows.

(il  ガス雰囲気に対し、安定であること(2)耐
熱性とくにクリープ強度が高いこと(3)  急激な電
解質流人がなくガスと反応できること (4)  電気伝導性が高いこと (5)  安価であること 従来、MCFCのアノード電極としては、多孔質のニッ
ケル(Ni)!極板が広く使用されている。
(il) Stable in gas atmosphere (2) High heat resistance, especially creep strength (3) Capable of reacting with gas without rapid electrolyte flow (4) High electrical conductivity (5) Inexpensive Conventionally, porous nickel (Ni) plates have been widely used as anode electrodes for MCFCs.

これはNiが耐食性と導電性をバランスよく具備し、か
つ良質の粉末が入手しやすいためであろう。しかしなが
ら、Ni1i、極板に上記の緒特性を付与させるために
は、原料粉末の種類、成形、焼結および後加工などの条
件を適切に設定しなければならない。例えば、粉末の種
類や製造条件の違いはNi電極板の空孔率、空孔径、比
表面積などに影響を及ぼし、そのため粉末種や製造条件
の違いにより電極としての電気化学的な挙動が異なって
くる。したがって、経済性に優れ、電気化学的に高活性
度を有する好ましいNi電極板の製造方法を見出すこと
が望まれる。
This is probably because Ni has a good balance of corrosion resistance and conductivity, and high quality powder is easily available. However, in order to impart the above-mentioned properties to the Ni1i electrode plate, conditions such as the type of raw material powder, molding, sintering, and post-processing must be appropriately set. For example, differences in powder type and manufacturing conditions affect the porosity, pore diameter, specific surface area, etc. of the Ni electrode plate, and therefore, the electrochemical behavior of the electrode differs depending on the powder type and manufacturing conditions. come. Therefore, it is desired to find a method for producing a preferable Ni electrode plate that is economically efficient and has high electrochemical activity.

Ni電極板の製造方法としては従来下記の方法が知られ
ている。
The following methods are conventionally known as methods for manufacturing Ni electrode plates.

(υ テープキャスティング法。(υ Tape casting method.

(2)  Niメツシュ上にNi粉末のスラリーを塗布
して焼付ける方法。
(2) A method of applying and baking Ni powder slurry onto the Ni mesh.

(3)  海綿状NiにNi粉末スラリーを塗布し、焼
結する方法。
(3) A method of applying Ni powder slurry to spongy Ni and sintering it.

(4)黒鉛もしくはアルシナ容器にNi粉末を充填し、
これをそのまま焼結する方法。
(4) Fill a graphite or arsina container with Ni powder,
How to sinter this as is.

(1)のテープキャスティング法は、均一な厚さをもっ
た電気化学的に活性の筒いNi電極板を得ることができ
るが、工程が繁雑で経済性に劣ることに加えて原料粉末
に適した可塑剤、分散剤または溶剤などの種類や組成の
選定が難かしく、また製造工程上の管理が困難であると
いう欠点を有している。
Tape casting method (1) can obtain an electrochemically active cylindrical Ni electrode plate with a uniform thickness, but the process is complicated and uneconomical, and it is not suitable for raw material powder. However, it is difficult to select the type and composition of the plasticizer, dispersant, or solvent used, and it is difficult to control the manufacturing process.

(2)もしくは(3)のNiメツシュや海綿状NiにN
i粉末のスラリーを塗布して焼付ける方法は、(1)の
テープキャスティング法より簡便で経済性も高いが、 
Ni粉末スラリーを均一に塗布することが難しいために
、得られるNi電極板の表面性状と厚さの均一性に問題
を残すほか、NiメツシュまたはNi海綿体を支持体と
して用いているので電極板としての比表面積が小さく電
気化学的な活性度の低下しやすいことが欠点である。(
4)の容器にNi粉末を充填し、そのままの状態で加圧
することなく焼結する方法は、従来知られている中では
最も簡便で経済的な方法であるが、このような方法では
得られるNi電極板の厚さと空孔率を合目的に制御する
ことは極めて困難であるばかりでなく、電極の大型化に
伴ない一層顕著になるという欠点を有している。
(2) or (3) Ni mesh or spongy Ni
The method of applying and baking a slurry of i powder is simpler and more economical than the tape casting method in (1), but
Because it is difficult to uniformly apply the Ni powder slurry, there are problems with the surface quality and uniformity of the thickness of the resulting Ni electrode plate, and because Ni mesh or Ni spongiosa is used as a support, the electrode plate is difficult to apply uniformly. The disadvantage is that the specific surface area is small and the electrochemical activity tends to decrease. (
4) The method of filling a container with Ni powder and sintering it in that state without applying pressure is the simplest and most economical method known to date; Not only is it extremely difficult to control the thickness and porosity of the Ni electrode plate, but it also has drawbacks that become more pronounced as the electrode becomes larger.

〔発明の目的〕[Purpose of the invention]

本発明の目的は上述の欠点を除去し、経済的で電気化学
的活性度の扁いNi電極板をアノードに用いることによ
って、長期にわたって優れた電池性能を維持できるMC
FCの製造方法を提供することにある。
The purpose of the present invention is to eliminate the above-mentioned drawbacks, and by using an economical and electrochemically active flat Ni electrode plate for the anode, an MC that can maintain excellent battery performance over a long period of time.
An object of the present invention is to provide a method for manufacturing FC.

〔発明の要点〕[Key points of the invention]

上記目的は本発明によれば、Ni粉末と有機繊維質であ
る木材パルプとを、これら固形分に対して5〜30倍程
度の重量の水を加えて湿式混合して抄造に適する水性ス
ラリーに調整した後、凝集剤を添加して凝集させ抄造機
にて抄造を行って板状の成形物に成形し、しかる後、こ
の成形物を高温雰囲気中で加熱することにより木材パル
プ、凝集剤を焼失気化させ同時にNi粉末を焼結して多
孔質のNi電極板からなるアノードを形成し、このアノ
ードとカソードとの間に電解質タイルを介在させてMC
FCの単位電池を構成することにより達成される。
According to the present invention, the above purpose is achieved by wet-mixing Ni powder and wood pulp, which is an organic fiber, by adding water of about 5 to 30 times the weight of the solid content to form an aqueous slurry suitable for papermaking. After the adjustment, a flocculant is added to agglomerate the wood pulp and the flocculant is formed into a plate-shaped molded product using a paper-making machine. At the same time, the Ni powder is sintered to form an anode made of a porous Ni electrode plate, and an electrolyte tile is interposed between the anode and the cathode.
This is achieved by constructing an FC unit battery.

〔発明の実施例〕[Embodiments of the invention]

以下1本発明を実施例に基づき説明する。 The present invention will be explained below based on examples.

(5)試料の調整 カーボニルニッケル粉末(平均粒径4,7μm) 45
部木材パルプ              5部水  
                     1000
部(ハ)凝集剤 ポリアクリルアミド系アニオン凝集剤 30部0、1%
水溶液 (三洋化成■製、商品名「サンフロックAH200PJ
)ポリアクリルアミド系カチオン凝集剤 20部0.1
%水溶液 (三洋化成■製、商品名[サンフロックC−009Pj
)21程度の容器に水1000部と木材パルプ5部を入
れ、10〜20分はど攪拌して水に十分分散させて、そ
こえカーボニルニッケル粉末45部を加えて5〜10分
はど攪拌し、水性スラリーを作る。その中へあらかじめ
作っておいたポリアクリルアミド系アニオン凝集剤(0
,1%水溶液)を30部添加し、1分はど攪拌し、さら
にあらかじめ作っておいたポリアクリルアミド系カチオ
ン凝集剤(0,1%水溶液)を20部添加し、1分はど
攪拌して凝集フロックを作成した。前記工程にて凝集し
た試料を抄造機で抄造して300郡角で厚み1.2醪の
シート状物を得た。これを水素雰囲気炉中で、まず50
0℃前後に数時間加熱して木材パルプ。
(5) Sample preparation Carbonyl nickel powder (average particle size 4.7 μm) 45
1 part wood pulp 5 parts water
1000
Part (c) Flocculant Polyacrylamide-based anionic flocculant 30 parts 0, 1%
Aqueous solution (manufactured by Sanyo Chemical, product name: Sunfloc AH200PJ)
) Polyacrylamide cationic flocculant 20 parts 0.1
% aqueous solution (manufactured by Sanyo Chemical Co., Ltd., product name [Sunfloc C-009Pj
) Put 1,000 parts of water and 5 parts of wood pulp in a 21-inch container, stir for 10 to 20 minutes to fully disperse it in the water, then add 45 parts of carbonyl nickel powder and stir for 5 to 10 minutes. and make an aqueous slurry. A polyacrylamide-based anion flocculant (0
, 1% aqueous solution), stirred for 1 minute, further added 20 parts of a polyacrylamide-based cation flocculant (0.1% aqueous solution) prepared in advance, and stirred for 1 minute. A flocculated floc was created. The sample agglomerated in the above step was made into a paper using a paper making machine to obtain a sheet-like product having a grain angle of 300 mm and a thickness of 1.2 mm. This was first heated in a hydrogen atmosphere furnace for 50 min.
Wood pulp is made by heating to around 0℃ for several hours.

凝集剤などを焼失気化させ、その後800℃2時間の加
熱を行うことでNi粉末の焼結を進行させ、多孔値のN
i’l(極板とした。本条件で得られたNl電極板の性
状は厚さ0.85 m、空孔率67チ、平均受孔半径5
.5μm、比表面積0.683W?/gであった。
By burning and vaporizing the flocculant, etc., and then heating at 800°C for 2 hours, the sintering of the Ni powder is progressed, and the porosity value of N is increased.
The properties of the Nl electrode plate obtained under these conditions were a thickness of 0.85 m, a porosity of 67 cm, and an average hole radius of 5.
.. 5μm, specific surface area 0.683W? /g.

本発明で用いるNi粉末は、一般に市販されている′社
解粉やカーボニル粉末などのいずれでもよいが、電極板
としたときの電気化学的性質を向上させるにはより微細
な粉末の方が好ましい。また、粉末を吸着凝集するため
に用いる有機繊維質パルプには種々のものがあるが、本
発明では繊維径が細かく、繊維同志の絡みが多くかつ安
価であるという観点から木材パルプを選定した。木材パ
ルプの添加量は所期の目的とする電極板の空孔率lこよ
って変化するが、本発明で意図する電極板の製造に当っ
ては、焼結前の成形物の乾燥前全重童に対して3〜15
チが好ましい範囲であった。一方、板状成形物の焼結工
程としては、成形物を大気中500℃前後で加熱したの
ち、それを不活性ガスあるいは真空雰囲気で700℃〜
1000℃に加熱する方法も採用可能である。
The Ni powder used in the present invention may be any commercially available Ni powder or carbonyl powder, but finer powder is preferable in order to improve the electrochemical properties when used as an electrode plate. . In addition, there are various types of organic fibrous pulp used for adsorbing and aggregating powder, but in the present invention, wood pulp was selected from the viewpoints that it has a small fiber diameter, many fibers are entwined with each other, and is inexpensive. The amount of wood pulp added varies depending on the desired porosity of the electrode plate, but in manufacturing the electrode plate contemplated by the present invention, the total weight before drying of the molded product before sintering is 3-15 for children
was within the preferred range. On the other hand, the sintering process for a plate-shaped molded product involves heating the molded product in the air at around 500°C, and then heating it in an inert gas or vacuum atmosphere at 700°C to 700°C.
A method of heating to 1000° C. can also be adopted.

以上の工程で得たNi電極板をアノードとして、このア
ノードとカソードとの間に電解質板を介在させてM C
l” Cの単セルを構成し電極としての性能を調べた。
Using the Ni electrode plate obtained in the above steps as an anode, an electrolyte plate is interposed between the anode and the cathode, and M C
A single cell of 1"C was constructed and its performance as an electrode was investigated.

使用した単セルは炭酸リチウムを62モル係、炭酸カリ
ウムを38モルチの割合に配合したアルカリ炭酸塩が、
肛解質として含浸された電解質板と、これを挾持するア
ノード側の燃料電極とカソード側の酸化剤電極とから構
成され、本実施例によるNi電極板から直径35mに打
ち抜いた円板をアノードとし、□□□来法のテープキャ
スティング法により作製した直径35欝、厚さ0.4−
のN101極板をカソードとして用いた。なお、リチウ
ムアルミネートのマトリックスは直径50簡。
The single cell used was an alkali carbonate containing 62 moles of lithium carbonate and 38 moles of potassium carbonate.
The anode consisted of an electrolyte plate impregnated with anal electrolyte, a fuel electrode on the anode side, and an oxidizer electrode on the cathode side, which held the electrolyte plate in place. , □□□ Diameter 35cm, thickness 0.4-cm manufactured by conventional tape casting method
A N101 plate was used as a cathode. The lithium aluminate matrix has a diameter of 50 cm.

厚さ2.5mにホットプレスしたものであり、電極の有
効面積は10−である。以上の単セルによる出力試験で
は燃料ガスとして水素に20%炭酸ガスを混合したもの
を用い、また酸化剤ガスとしては空気に30チ炭酸ガス
を混合したものを用い、常圧650℃の条件で稼動した
。電流密度に対する単セル出力電圧の変化を第1図の線
図に示した。
It is hot-pressed to a thickness of 2.5 m, and the effective area of the electrode is 10-. In the above output test using a single cell, a mixture of hydrogen and 20% carbon dioxide gas was used as the fuel gas, and a mixture of 30% carbon dioxide gas and air was used as the oxidizing gas, under the condition of normal pressure 650℃. It was operational. The change in single cell output voltage with respect to current density is shown in the diagram of FIG.

第1図における実線プロットした曲線(1)が本発明に
よるNi電極板の場合であり、破線でプロットした曲線
(2)は従来法によるNiメツシュにNi粉末を塗布し
て焼き付けたNii[極板を用いた場合を比較のために
併記したものである。第1図のように本発明により得ら
れるNi電極板を用いた方が、従来法で作られたNi電
極板よりも電池の電流密度の増加に対する出力電圧の低
下が少ないのは、従来のNi電極板の比表面積の値が0
.09〜0.2m’/g程度であって、比表面積値がo
、srr?/g前後となる本発明のNi電極板の方が電
気化学的活性度が高いからである。
The curve (1) plotted as a solid line in FIG. For comparison, the case using . As shown in Figure 1, the reason why the output voltage decreases less when the battery current density increases is lower when using the Ni electrode plate obtained by the present invention than when using the Ni electrode plate made by the conventional method. The value of the specific surface area of the electrode plate is 0
.. 09 to 0.2 m'/g, and the specific surface area value is o
, srr? This is because the Ni electrode plate of the present invention, which is around /g, has a higher electrochemical activity.

〔発明の効果〕〔Effect of the invention〕

以上説明したように1本発明によればNi粉末と木材パ
ルプを水中で混合して水性スラリーとし、これに凝集剤
を添加して抄造により板状の成形物を得、これを高温焼
結することにより木材パルプを焼失気化させ、そのあと
Niだけの焼結体を形成せしめ、それをアノードとして
用いることで電池性能に優れたMCFCを構成すること
ができる。
As explained above, according to the present invention, Ni powder and wood pulp are mixed in water to form an aqueous slurry, a flocculant is added to this, a plate-shaped molded product is obtained by papermaking, and this is sintered at high temperature. By burning and vaporizing the wood pulp, and then forming a sintered body containing only Ni, and using this as an anode, an MCFC with excellent battery performance can be constructed.

また、本発明に関するMCFC、特lこアノードを得る
製造方法は従来法より工程を簡素でき、かつ電極板の大
型化も容易であるので、MCFCの経済性の向上および
大型化にも効果を発揮できる。
In addition, the manufacturing method for obtaining the MCFC, especially the anode, according to the present invention can simplify the process compared to the conventional method, and it is also easy to increase the size of the electrode plate, so it is effective in improving the economic efficiency and increasing the size of the MCFC. can.

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

Claims (1)

【特許請求の範囲】[Claims] Ni粉末と木材パルプを水中で混合して抄造に適する水
性スラリーなし、凝集剤を添加して粉末をパルプに吸着
凝集せしめ、抄造することによって板状の成形物を得、
該成形物を高温雰囲気中で加熱することにより木材パル
プ、凝集剤を焼失気化させるとともにNi粉末を焼結し
てアノードを形成し、このアノードとカソードとの間に
電解質タイルを介在させて単位電池を構成する多孔質の
電極板をアノード電極として用いたことを特徴とする溶
融炭酸塩燃料電池の製造方法。
By mixing Ni powder and wood pulp in water without creating an aqueous slurry suitable for papermaking, a flocculant is added to adsorb and agglomerate the powder to the pulp, and by papermaking, a plate-shaped molded product is obtained.
By heating the molded product in a high-temperature atmosphere, the wood pulp and flocculant are burned out and vaporized, and the Ni powder is sintered to form an anode. An electrolyte tile is interposed between the anode and the cathode to form a unit battery. 1. A method for manufacturing a molten carbonate fuel cell, characterized in that a porous electrode plate comprising a molten carbonate fuel cell is used as an anode electrode.
JP60295419A 1985-12-27 1985-12-27 Manufacture of molten carbonate fuel cell Granted JPS62154572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60295419A JPS62154572A (en) 1985-12-27 1985-12-27 Manufacture of molten carbonate fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60295419A JPS62154572A (en) 1985-12-27 1985-12-27 Manufacture of molten carbonate fuel cell

Publications (2)

Publication Number Publication Date
JPS62154572A true JPS62154572A (en) 1987-07-09
JPH0548580B2 JPH0548580B2 (en) 1993-07-21

Family

ID=17820360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60295419A Granted JPS62154572A (en) 1985-12-27 1985-12-27 Manufacture of molten carbonate fuel cell

Country Status (1)

Country Link
JP (1) JPS62154572A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174951A (en) * 1990-11-05 1992-12-29 Asahi Tec Corporation Method of producing a porous metal and a metal product using the same such as a catalyst carrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174951A (en) * 1990-11-05 1992-12-29 Asahi Tec Corporation Method of producing a porous metal and a metal product using the same such as a catalyst carrier

Also Published As

Publication number Publication date
JPH0548580B2 (en) 1993-07-21

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