JPH0527230B2 - - Google Patents
Info
- Publication number
- JPH0527230B2 JPH0527230B2 JP58124316A JP12431683A JPH0527230B2 JP H0527230 B2 JPH0527230 B2 JP H0527230B2 JP 58124316 A JP58124316 A JP 58124316A JP 12431683 A JP12431683 A JP 12431683A JP H0527230 B2 JPH0527230 B2 JP H0527230B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- current collector
- side electrode
- fuel cell
- nickel
- 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.)
- Expired - Lifetime
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 49
- 239000000446 fuel Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 229910052759 nickel Inorganic materials 0.000 claims description 22
- 239000007800 oxidant agent Substances 0.000 claims description 11
- 239000003792 electrolyte Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 5
- 235000011613 Pinus brutia Nutrition 0.000 claims description 5
- 241000018646 Pinus brutia Species 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 12
- 230000001590 oxidative effect Effects 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920000609 methyl cellulose Polymers 0.000 description 3
- 239000001923 methylcellulose Substances 0.000 description 3
- 235000010981 methylcellulose Nutrition 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 229910010093 LiAlO Inorganic materials 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 229910021543 Nickel dioxide Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
-
- 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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
-
- 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
- H01M8/14—Fuel cells with fused electrolytes
- H01M2008/147—Fuel cells with molten carbonates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0048—Molten electrolytes used at high temperature
- H01M2300/0051—Carbonates
-
- 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
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
- H01M8/0208—Alloys
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、燃料電池に関するものであり、と
りわけ、溶融炭酸塩を電解質とする燃料電池に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fuel cell, and particularly to a fuel cell using molten carbonate as an electrolyte.
従来、この種の燃料電池は第１図に示した部材
を積層して構成していた。図において燃料側電極
の集電板１は第２図に示したごとく、ガス流路と
して多数の貫通孔６を備えたもので、一般には溶
融塩に対する耐食性を考慮して、ニツケル金属が
用いられ、１〜２mmの厚みをもつている。燃料側
電極２はニツケル金属粉を主成分とする焼結体か
らなる多孔質の電極である。 Conventionally, this type of fuel cell has been constructed by laminating the members shown in FIG. As shown in Figure 2, the current collector plate 1 of the fuel side electrode is equipped with a large number of through holes 6 as gas flow paths, and is generally made of nickel metal in consideration of its corrosion resistance against molten salt. , has a thickness of 1 to 2 mm. The fuel side electrode 2 is a porous electrode made of a sintered body containing nickel metal powder as a main component.
電解質層３はLiAlO2を主成分とする多孔質構
造体にLi2CO3などの炭酸塩を混入させたものか
らなつている。酸化剤側電極４は燃料側電極２と
同様に多孔質構造となつている。この酸化剤側電
極４はNi焼結体を用いる場合とNiO焼結体を用
いる場合があるが、しずれにしろ電池の動作状態
ではNiOにわずかのLiイオンが加わつたNiO
（Li+）となつている。酸化剤側電極４の集電板５
は燃料側電極の集電板１と同様の構造をもつステ
ンレス製のものである。 The electrolyte layer 3 is made of a porous structure mainly composed of LiAlO 2 mixed with a carbonate such as Li 2 CO 3 . The oxidant side electrode 4 has a porous structure similar to the fuel side electrode 2. This oxidizer-side electrode 4 may be made of Ni sintered body or NiO sintered body, but in any case, under the operating condition of the battery, NiO2 with a small amount of Li ions added to NiO
(Li + ). Current collector plate 5 of oxidizer side electrode 4
is made of stainless steel and has the same structure as the current collector plate 1 of the fuel side electrode.
集電板１および５の貫通孔６は、１mm程度の間
を空けて形成されており、この１mm程度の部分の
ガス透過性は０になる。なお、貫通孔６の形状は
円である必要はないが、一般には直径１〜３mmの
円孔になつている。 The through holes 6 of the current collector plates 1 and 5 are formed with a gap of approximately 1 mm, and the gas permeability of this approximately 1 mm portion is zero. Although the shape of the through hole 6 is not necessarily circular, it is generally a circular hole with a diameter of 1 to 3 mm.
また、集電板１および５の外側には、それぞれ
ガス流路板８および９が当接し、ガス流路板８お
よび９の外側には、それぞれセパレータ１０およ
び１１が配置されている。ここで、燃料電池は、
複数の燃料電池が直列に積層されて機能するもの
であり、セパレータ１０，１１は隣接する燃料電
池との間で、ガスを分離する役割と、接続導体と
しての役割とを果たす。 Further, gas flow passage plates 8 and 9 are in contact with the outer sides of the current collector plates 1 and 5, respectively, and separators 10 and 11 are arranged on the outer sides of the gas flow passage plates 8 and 9, respectively. Here, the fuel cell is
A plurality of fuel cells are stacked in series to function, and the separators 10 and 11 play the role of separating gas between adjacent fuel cells and the role of a connecting conductor.
次に、この種の溶融炭酸塩形燃料電池の動作に
ついて説明する。燃料電池の周知のごとくH2な
どの燃料ガスと空気などの酸化剤ガスとの電気化
学的な反応によつて直接電気として取り出すもの
である。この種の電気化学反応を有効に行わせる
ために、一般には多孔質の電極２，４が用いられ
る。 Next, the operation of this type of molten carbonate fuel cell will be explained. As is well known in the art, fuel cells generate electricity directly through an electrochemical reaction between a fuel gas such as H 2 and an oxidant gas such as air. In order to effectively carry out this type of electrochemical reaction, porous electrodes 2 and 4 are generally used.
燃料側電極２および酸化剤電極４における反応
は、次のとおりである。 The reactions at the fuel side electrode 2 and the oxidizer electrode 4 are as follows.
（燃料側）
H2＋CO2- 3→H2Ｏ＋CO2＋2e (1)
（酸化剤側）
CO2＋１／２O2＋2e→CO2- 3 (2)
つまり、燃料側電極２において燃料、H2が電解
質層３中のCO2- 3と反応して水とCO2と電子を生
成し、酸化剤側電極４においてはCO2と酸化剤O2
および外部負荷を通つて流れてきた電子が反応し
てCO2- 3を生成し、電解質層３中へ溶解すること
によつて電池反応が進行する。(Fuel side) H 2 +CO 2- 3 →H 2 O+CO 2 +2e (1) (Oxidizer side) CO 2 +1/2O 2 +2e→CO 2- 3 (2) In other words, at the fuel side electrode 2, fuel, H 2 reacts with CO 2- 3 in the electrolyte layer 3 to generate water, CO 2 and electrons, and at the oxidant side electrode 4, CO 2 and oxidant O 2
Electrons flowing through the external load react to generate CO 2-3 , which is dissolved into the electrolyte layer 3, thereby progressing the battery reaction.
これを第１図を用いて説明する。まず、燃料ガ
スがガス流路板８から集電板１の貫通孔６を通つ
て燃料側電極２へ運ばれる。この燃料側電極２の
微細孔の中で、上記(1)式の反応が進行する。一
方、酸化剤側においても、集電板５の貫通孔６よ
り供給された酸化剤ガスは(2)式に従つて反応す
る。そして、２つの集電板１，５を通して集電作
用が行われる。 This will be explained using FIG. First, fuel gas is transported from the gas flow path plate 8 to the fuel side electrode 2 through the through hole 6 of the current collector plate 1 . In the fine pores of the fuel-side electrode 2, the reaction of formula (1) above proceeds. On the other hand, on the oxidizing agent side as well, the oxidizing gas supplied from the through hole 6 of the current collector plate 5 reacts according to equation (2). A current collecting action is performed through the two current collecting plates 1 and 5.
従来の燃料電池は以上のように構成され、貫通
孔６相互の間隔が１mm程度もあり、この部分での
ガス透過性は０になるので、集電板１，５より電
極２，４へガスを供給する際、反応ガスを均一に
供給するのが困難であつた。また、集電板１，５
には貫通孔６が形成されているため、その機械的
強度を保つのが困難であり、１〜２mm程度のかな
り厚い板を用いる必要があるなどの欠点があつ
た。 A conventional fuel cell is constructed as described above, and the distance between the through holes 6 is about 1 mm, and the gas permeability in this part is 0, so gas is not passed from the current collector plates 1 and 5 to the electrodes 2 and 4. When supplying the reaction gas, it was difficult to supply the reaction gas uniformly. In addition, current collector plates 1 and 5
Since the through hole 6 is formed in the plate, it is difficult to maintain its mechanical strength, and there are drawbacks such as the need to use a fairly thick plate of about 1 to 2 mm.
この発明は、以上のような従来のものの欠点を
除去するためになされたもので、集電板として繊
維状の金属マツトを用いることにより、機械的強
度に富み、燃料ガスも均一に供給しうる集電板を
備えた燃料電池を提供することを目的とする。 This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and by using a fibrous metal mat as a current collector plate, it has high mechanical strength and can supply fuel gas uniformly. An object of the present invention is to provide a fuel cell equipped with a current collector plate.
さらに、この発明は、ニツケル、ステンレスス
チールまたはニツケルにクロム、コバルトなどを
加えた繊維状の金属マツトでなる集電板を備えた
燃料電池を提供することを目的とする。 A further object of the present invention is to provide a fuel cell equipped with a current collector plate made of nickel, stainless steel, or a fibrous metal mat made of nickel with chromium, cobalt, etc. added thereto.
以下、この発明を実施例について説明する。ま
ず、線径10〜100μm、長さ１〜10mmの範囲にある
繊維状金属を用意する。この繊維状金属は丸棒か
ら削り出すなどの方法で得ることができる。次に
有機溶媒又は水溶液の中へ所定の量の繊維状金属
を入れ、均一に分散するよう充分撹拌する。この
ときの溶液にメチルセルロースやポリビニルアル
コールのような有機系バインダを添加すると、繊
維状金属が均一に分散し易い。ついでこの溶液を
静置するか、または紙、布などで漉くかして繊維
状金属のマツトを作る。出来上がつたものは紙の
ような形状をもつ。 Hereinafter, this invention will be explained with reference to examples. First, a fibrous metal having a wire diameter of 10 to 100 μm and a length of 1 to 10 mm is prepared. This fibrous metal can be obtained by cutting a round bar. Next, a predetermined amount of fibrous metal is placed in an organic solvent or aqueous solution and sufficiently stirred to ensure uniform dispersion. Adding an organic binder such as methyl cellulose or polyvinyl alcohol to the solution at this time facilitates uniform dispersion of the fibrous metal. This solution is then allowed to stand or is strained with paper or cloth to create a fibrous metal matte. The finished product has a paper-like shape.
以上の工程はいわゆる和紙などを作るときに用
いられる紙漉き技術の応用によつても容易に達成
できる。 The above steps can also be easily accomplished by applying paper-making techniques used to make so-called Japanese paper.
かくして得られた繊維状金属マツトを800〜
1100℃で加熱することにより、繊維状金属の小片
が互いに焼結され多孔質かつ機械的強度の強いマ
ツトが形成される。この焼結後の多孔性金属マツ
トを集電板として用いると、ガス供給の均一な燃
料電池が得られる。 The fibrous metal pine obtained in this way is
By heating at 1100°C, the fibrous metal pieces are sintered together to form a porous and mechanically strong mat. If this sintered porous metal mat is used as a current collector plate, a fuel cell with uniform gas supply can be obtained.
次に、いくつかの実施例をさらに詳細に説明す
る。 Next, some embodiments will be described in more detail.
実施例 １
まず、線径30〜50μm、長さ１〜５mmの繊維状
ニツケル20grを用意する。次に１％メキルセルロ
ース２を用意し、この中へニツケル繊維を入れ
たのち充分に撹拌する。ついで、この溶液を底面
積約400cm3の容器へ移し、静置する。こののち、
上澄み液を捨て沈殿物を乾燥する。充分乾燥した
後、約10Kg／cm2の圧力で加圧する。その後、400
℃で30分加熱することにより、メチルセルロース
を分解除去する。さらに水素雰囲気中で、1000
℃、15分加熱し、ニツケル繊維同志の焼結を図
る。Example 1 First, 20 gr of nickel fibers with a wire diameter of 30 to 50 μm and a length of 1 to 5 mm are prepared. Next, prepare 1% methylcellulose 2, add the nickel fibers therein, and stir thoroughly. Next, this solution is transferred to a container with a bottom area of about 400 cm 3 and left to stand. After this,
Discard the supernatant and dry the precipitate. After thoroughly drying, pressurize at a pressure of approximately 10 kg/cm 2 . Then 400
Methylcellulose is decomposed and removed by heating at ℃ for 30 minutes. Furthermore, in a hydrogen atmosphere, 1000
℃ for 15 minutes to sinter the nickel fibers.
得られた繊維状ニツケルマツトは膜厚約0.4mm
であつた。第３図はその断面拡大図を示し、繊維
状ニツケルマツト７は繊維状ニツケル７ａの焼結
体で構成されていることがわかる。 The thickness of the obtained fibrous nickel pine is approximately 0.4 mm.
It was hot. FIG. 3 shows an enlarged cross-sectional view of the same, and it can be seen that the fibrous nickel mat 7 is composed of a sintered body of fibrous nickel 7a.
ここで得られた繊維状ニツケル７ａの多孔質膜
でなる金属マツトを燃料側電極の集電板１に用い
て燃料電池を組み立てると、燃料ガスの電極への
均一な拡散を図ることができる。 When a fuel cell is assembled using the metal mat made of the porous membrane of fibrous nickel 7a obtained here as the current collector plate 1 of the fuel side electrode, uniform diffusion of fuel gas to the electrode can be achieved.
実施例 ２
線径30〜50μm、長さ１〜５mmの繊維状ニツケ
ル20grとニツケル1grを用意する。これを１％ポ
リビニルアルコール水溶液50mlに入れ充分撹拌し
たのち、マイラーフイルムなどの基板上に引き延
ばす。充分乾燥した後、得られたフイルムを基板
フイルムからはがし、約10Kg／cm2の圧力で加圧す
る。ついで、400℃で30分加熱することにより、
ポリビニルアルコールを分解除去する。このの
ち、水素雰囲気下で900℃、100分加熱し、焼結す
る。Example 2 Prepare 20 gr of nickel and 1 gr of nickel with a wire diameter of 30 to 50 μm and a length of 1 to 5 mm. This was poured into 50 ml of a 1% polyvinyl alcohol aqueous solution, thoroughly stirred, and then spread on a substrate such as Mylar film. After sufficiently drying, the obtained film is peeled off from the substrate film and pressurized at a pressure of about 10 kg/cm 2 . Then, by heating at 400℃ for 30 minutes,
Decomposes and removes polyvinyl alcohol. After this, it is heated at 900°C for 100 minutes in a hydrogen atmosphere to sinter it.
ここで得られた繊維状ニツケルマツト１７の断
面拡大図を第４図に示す。繊維状ニツケルマツト
１７は繊維状ニツケル７ａとニツケル粉末７ｂで
構成されている。図からわかるようにニツケル粉
末７ｂは繊維状ニツケル７ａ同士を結びける役割
をはたしている。これを燃料側の集電板に用いる
のは実施例１と同様である。 An enlarged cross-sectional view of the fibrous nickel pine 17 obtained here is shown in FIG. The fibrous nickel mat 17 is composed of fibrous nickel 7a and nickel powder 7b. As can be seen from the figure, the nickel powder 7b serves to bind the fibrous nickel 7a together. It is the same as in Example 1 that this is used for the current collector plate on the fuel side.
なお、金属マツトの金属成分は、ニツケル80〜
100％、クロム０〜20％、コバルト０〜20％の成
分の範囲のもので好適な結果を得ることができ
た。 In addition, the metal component of the metal mat is Nickel 80~
Suitable results were obtained with a composition ranging from 100% to 100%, 0 to 20% chromium, and 0 to 20% cobalt.
また、上記の実施例では、繊維状ニツケルマツ
トを燃料側の集電板に用いる場合について説明し
たが、ステンレスマツト等の他の金属マツトも同
様の方法で得られる。特にステンレスマツトは耐
食性にすぐれているため、酸化剤側電極の集電板
に用いた場合、上記実施例と同様の効果を奏す
る。この場合のステンレス材料としては、ステン
レス310，316，321のいずれかが好適である。 Furthermore, in the above embodiments, a case has been described in which fibrous nickel mat is used as the current collector plate on the fuel side, but other metal mats such as stainless steel mat can also be obtained by the same method. In particular, since stainless steel mat has excellent corrosion resistance, when used as the current collector plate of the oxidizing agent side electrode, it produces the same effects as in the above embodiment. As the stainless steel material in this case, any one of stainless steel 310, 316, and 321 is suitable.
以上のように、この発明によれば、集電板を繊
維状金属の焼結体でなる金属マツトで構成するこ
とにより、反応ガスを均一に供給し、電池の薄型
化等を図ることができるという効果がある。 As described above, according to the present invention, by constructing the current collector plate with a metal mat made of a sintered body of fibrous metal, it is possible to uniformly supply the reactive gas and to make the battery thinner. There is an effect.
第１図は従来の溶融炭酸塩形燃料電池の分解側
面図、第２図はその集電板の斜視図、第３図はこ
の発明の一実施例の要部拡大断面図、第４図は同
じく他の実施例の要部拡大断面図である。
１……燃料側電極の集電板、２……燃料側電
極、３……電解質層、５……酸化剤側電極の集電
板、６……貫通孔、７，１７……繊維状ニツケル
マツト、７ａ……繊維状ニツケル、７ｂ……ニツ
ケル粉末。なお、各図中、同一符号は同一又は相
当部分を示す。
Fig. 1 is an exploded side view of a conventional molten carbonate fuel cell, Fig. 2 is a perspective view of its current collector plate, Fig. 3 is an enlarged sectional view of essential parts of an embodiment of the present invention, and Fig. 4 is FIG. 7 is an enlarged cross-sectional view of a main part of another embodiment. DESCRIPTION OF SYMBOLS 1... Current collector plate of fuel side electrode, 2... Fuel side electrode, 3... Electrolyte layer, 5... Current collector plate of oxidizer side electrode, 6... Through hole, 7, 17... Fibrous nickel pine , 7a... fibrous nickel, 7b... nickel powder. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
電解質層を挟んで配置された燃料側電極および酸
化剤側電極と、 これらの電極にそれぞれ当接し、多数の貫通孔
を有する１対の集電板と、 これらの集電板にそれぞれ当接する１対のガス
流路板と、 これらのガス流路板の外側にそれぞれ配置され
たセパレータと、 を備え、燃料および酸化剤が前記ガス流路板から
前記貫通孔を通つてそれぞれ前記燃料側電極およ
び前記酸化剤側電極に供給される燃料電池におい
て、 前記集電板が、繊維状金属を焼結して形成され
た多孔性の金属マツトであることを特徴とする燃
料電池。 ２ 繊維状金属が線径10〜100μm、長さ１〜10mm
の範囲のものである特許請求の範囲第１項記載の
燃料電池。 ３ 繊維状金属の成分がニツケル80〜100％、ク
ロム０〜20％、コバルト０〜20％の範囲のもので
ある特許請求の範囲第１項記載の燃料電池。 ４ ニツケル粉末を加えて金属マツトを形成した
特許請求の範囲第３項記載の燃料電池。 ５ 繊維状金属がステンレススチールである特許
請求の範囲第１項記載の燃料電池。[Scope of Claims] 1. An electrolyte layer containing molten carbonate as an electrolyte, a fuel-side electrode and an oxidizer-side electrode arranged with this electrolyte layer in between, and a number of through holes in contact with these electrodes, respectively. a pair of current collector plates, a pair of gas passage plates respectively abutting these current collector plates, and a separator disposed on the outside of each of these gas passage plates, the fuel and oxidizer is supplied to the fuel-side electrode and the oxidizer-side electrode from the gas flow path plate through the through-hole, respectively, wherein the current collector plate has porous holes formed by sintering a fibrous metal. A fuel cell characterized by being made of solid metal pine. 2 The fibrous metal has a wire diameter of 10 to 100 μm and a length of 1 to 10 mm.
The fuel cell according to claim 1, which falls within the scope of. 3. The fuel cell according to claim 1, wherein the fibrous metal contains 80 to 100% nickel, 0 to 20% chromium, and 0 to 20% cobalt. 4. The fuel cell according to claim 3, wherein nickel powder is added to form a metal mat. 5. The fuel cell according to claim 1, wherein the fibrous metal is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58124316A JPS6014769A (en) | 1983-07-06 | 1983-07-06 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58124316A JPS6014769A (en) | 1983-07-06 | 1983-07-06 | Fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6014769A JPS6014769A (en) | 1985-01-25 |
| JPH0527230B2 true JPH0527230B2 (en) | 1993-04-20 |
Family
ID=14882308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58124316A Granted JPS6014769A (en) | 1983-07-06 | 1983-07-06 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014769A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63102171A (en) * | 1986-10-20 | 1988-05-07 | Sanyo Electric Co Ltd | Molten carbonate fuel cell |
| WO1998052241A1 (en) * | 1997-05-13 | 1998-11-19 | Loughborough University Innovations Limited | Current distributors of sintered metals and fuel cells using them |
| SE522666C2 (en) * | 2000-07-07 | 2004-02-24 | Volvo Ab | Gas distribution element for fuel cells, fuel cell and method for producing a gas distribution element |
| JP2003031240A (en) * | 2001-07-12 | 2003-01-31 | Kemitsukusu:Kk | Small-sized solid polymer fuel cell and separator for fuel cell |
-
1983
- 1983-07-06 JP JP58124316A patent/JPS6014769A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6014769A (en) | 1985-01-25 |
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