JPH0564425B2 - - Google Patents
Info
- Publication number
- JPH0564425B2 JPH0564425B2 JP59194207A JP19420784A JPH0564425B2 JP H0564425 B2 JPH0564425 B2 JP H0564425B2 JP 59194207 A JP59194207 A JP 59194207A JP 19420784 A JP19420784 A JP 19420784A JP H0564425 B2 JPH0564425 B2 JP H0564425B2
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- bipolar plate
- electrode
- copper
- battery
- 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
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
- 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
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
-
- 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)
Description
産業上の利用分野
本発明は水素、一酸化炭素などを燃料とし、空
気、酸素、炭酸ガスなどを酸化剤とし、高温で動
作する溶融炭酸塩燃料電池に関するものであり、
特に電極、集電体間の接触抵抗の低減に関するも
のである。
従来例の構成とその問題点
アルカリ金属炭酸塩を電解質とする溶融炭酸塩
燃料電池は、動作温度が600〜700℃と高温である
うえ、溶融した炭酸塩自体が激しい腐食性を有し
ているために、材料面での問題が重要となつてい
る。このような環境下において電池構成要素の一
つである集電体または構造によつては集電体を兼
ねるタイプのバイポーラ板は機械的強度とともに
耐熱性、耐食性、電気導電性を有していなけれな
らない。
従来、溶融炭酸塩燃料電池の集電体（または、
集電体の機能を兼ねるバイポーラ板材料）１とし
てはSUS316等のステンレス鋼材料のそのまま使
用していた。しかし、これらの材料は電解質体５
に接する酸化剤極３側は、もちろん還元性雰囲気
である燃料極４側においてすら第１図に示すよう
に材料中に含まれるクロム、モリブデン等と長期
間の動作中に電極から滲み出してきた炭酸塩およ
び燃料中に含まれている水蒸気などとが反応し
て、還元されにくくかつ電気抵抗の大きい酸化被
膜２，２′を表面に形成し、電極との接触抵抗の
増大を引き起こしていた。
そしてこの抵抗のために高電流密度における出
力電圧が低下するという致命的問題が生じてい
た。燃料極４側におけるこのような問題を解決す
るため、燃料極４側の集電体１表面にニツケル被
膜を形成する方法が考えられており、これにより
一応の効果を得ている。しかしながらニツケルは
コスト的に高く、電気抵抗も500℃で銅が4.6μ
Ω・cm、銀が4.7μΩ・cmであるのに対してニツケ
ルは34.2μΩ・cmと大きく、最適の材料ではなか
つた。さらに、集電体１の燃料極４側は燃料中の
水素による水素脆性をきたす恐れがあるがニツケ
ルは水素の拡散係数が銅の10倍程度大きく、集電
体基体材料の水素脆性を抑止する保護膜としての
機能は期待できなかたつた。
発明の目的
そこで本発明では、溶融炭酸塩燃料電池におい
て燃料極と集電体間の接触抵抗を長期間にわたり
低く保ち、かつ集電体基体を水素脆性から保護
し、長期間にわたり高い性能を示すことができる
溶融炭酸塩燃料電池を得る事を目的としている。
発明の構成
本発明は、銅が高い導電性を有し電気導電材料
として極めて一般的な材料でありながら、溶融炭
酸塩燃料電池の燃料極環境下において耐食性に優
れていることを見出し、さらに銅がニツケルなど
よりも小さな水素拡散係数を有していることに着
目し、銅を集電体表面に被膜として付けることに
より前記の問題点を解決するものであり、溶融炭
酸塩を電解質とする溶融炭酸塩燃料電池におい
て、集電体、または集電体を兼ねるバイポーラ板
のすくなくとも燃料極と接触する表面に銅の被膜
を形成させ、昇温状態において前記集電体の銅被
膜は還元性または不活性雰囲気下におき、金属銅
の状態を保持させるものである。
実施例の説明
以下、本発明を実施例に従つて説明する。第２
図は本実施例で用いた集電体を兼ねるタイプのバ
イポーラ板の一部を示しており、従来例と同一要
素には同一番号を付し説明を省略する。
バイポーラ板１は厚さ0.2mmのSUS304板の図の
ような形状にしたものであり全体は20cm角の大き
さを有している。集電体１の凸部６はそれぞれ電
極に接触し、集電体の役割を果す部分である。本
実施例ではこのバイポーラ板の燃料極４側の表面
に以下のようにして銅の被膜７を形成させた。
まずバイポーラ板をよく洗浄した後、銅メツキ
浴を用いて厚さ10〜50μの銅被膜を形成させる。
次にこれを800℃、水素気流中で処理し、銅を母
材中に拡散させ、銅被膜７を形成させた。この
際、被膜の厚さは10〜20μ程度が最適である。
また本発明とは直接関係しないが、測定上酸化
剤極側の集電体−電極間の接触抵抗を無視できる
ように集電体の酸化剤極側表面には銀ペースト８
を塗布し、前記の熱処理で同時に焼き付けをおこ
なつた。
このようにして表面に銅被膜を形成した集電体
を溶融炭酸塩燃料電池に組み込み、電池の性能試
験を行なつた。電池構成は前記バイポーラ板１、
電解質体５、燃料極４、酸化剤３からなり、燃料
極４としてはニツケル粉末の焼結体、酸化剤極３
としてはニツケルリチウム酸化物の多孔体を、電
解質体５には炭酸リチウム−炭酸カリウム混合物
にアルミン酸リチウム粉末を加えホツトプレスし
たものを用いた。電池には燃料ガスとして水素80
％−炭酸ガス20％混合ガスを60℃のバブラーに通
し60℃飽和水蒸気圧で加湿したものを供給し、ま
た酸化剤ガスとしては空気70％−炭酸ガス30％混
合ガスを供給した。またガス供給量は放電電流密
度150ｍＡ／cm2において水素利用率が60％、酸素
利用率が40％となるような固定流量とし、動作温
度は650℃で動作させた。以下の電池運転試験は
すべてこの条件下で行つた。
また比較のため従来例のステンレス鋼のみから
なるバイポーラ板を用いた電池についても燃料極
側表面はステンレス鋼のまま、酸化剤極側表面に
は銀ペーストを塗布、焼き付けし、同じ条件で試
験をおこなつた。
第３図に運転開始直後、および電流密度150ｍ
Ａ／cm2で1000時間連続運転した後の放電曲線を示
す。運転開始直後の放電特性は本発明による電池
Ａ（銅被膜を形成させた電池）および従来例のス
テンレス鋼をそのまま用いた電池Ｂとも一点鎖線
で表される同等の初期性能を有し、150ｍＡ／cm2
での各電池の出力は0.84〜0.86Vの範囲にあつた。
1000時間経つた時点では電池Ａ（図中の実線で表
示）は小さい性能低下を示すものの、初期性能に
近い性能を示した。一方電池Ｂ（図中の破線で表
示）では集電体の接触抵抗に起因するとみられる
内部抵抗の増加により、性能の低下がみられる。
このことは運転試験後の電池Ｂのバイポーラ板集
電体部分に低導電性の被膜が形成されていたこと
からも確認された。一方、銅被膜を表面に形成さ
せた本発明による電池Ａの集電体ついては燃料極
側では組立時と比較して全く変化がなく、銅の金
属光沢を保つているのが観測された。
表は試験終了後、銅被膜を有する電池Ａのバイ
ポーラ板から切り取つたサンプルａと、従来例に
よる電池のバイポーラ板から切り取つたサンプル
ｂの表面被膜の抵抗を第４図に示すようにして測
定した結果である。第４図において８は銀ペース
ト、９はリード、１０はSUS３０４からなるバ
イポーラ板、１１は酸化物被膜である。サンプル
ａは抵抗が小さすぎて測定不可能であつた。これ
から電極との間の抵抗も極めて低く保たれている
と考えられる。
INDUSTRIAL APPLICATION FIELD The present invention relates to a molten carbonate fuel cell that uses hydrogen, carbon monoxide, etc. as a fuel, air, oxygen, carbon dioxide, etc. as an oxidizing agent, and operates at high temperatures.
In particular, it relates to reducing contact resistance between electrodes and current collectors. Structure of conventional examples and their problems Molten carbonate fuel cells that use alkali metal carbonate as an electrolyte have a high operating temperature of 600 to 700°C, and the molten carbonate itself is highly corrosive. For this reason, material issues have become important. In such an environment, the current collector, which is one of the battery components, or the type of bipolar plate that doubles as a current collector depending on the structure, must have mechanical strength, heat resistance, corrosion resistance, and electrical conductivity. It won't happen. Traditionally, the current collector of a molten carbonate fuel cell (or
As the bipolar plate material (1) which also functions as a current collector, a stainless steel material such as SUS316 was used as is. However, these materials have an electrolyte body 5
Of course, even on the fuel electrode 4 side, which is in a reducing atmosphere, the oxidizer electrode 3 side, which is in contact with The carbonate and water vapor contained in the fuel react to form oxide films 2, 2' on the surface that are difficult to reduce and have high electrical resistance, causing an increase in contact resistance with the electrode. This resistance caused a fatal problem in that the output voltage at high current densities decreased. In order to solve this problem on the fuel electrode 4 side, a method has been considered in which a nickel film is formed on the surface of the current collector 1 on the fuel electrode 4 side, and this method has been somewhat effective. However, nickel is expensive, and copper has an electrical resistance of 4.6μ at 500℃.
Ω・cm, silver has a value of 4.7 μΩ・cm, while nickel has a large value of 34.2 μΩ・cm, so it was not the most suitable material. Furthermore, the fuel electrode 4 side of the current collector 1 may suffer from hydrogen embrittlement due to hydrogen in the fuel, but nickel has a hydrogen diffusion coefficient about 10 times greater than copper, which prevents hydrogen embrittlement in the current collector base material. The function as a protective film could not be expected. Purpose of the Invention Therefore, the present invention aims to maintain low contact resistance between a fuel electrode and a current collector over a long period of time in a molten carbonate fuel cell, protect the current collector substrate from hydrogen embrittlement, and exhibit high performance over a long period of time. The aim is to obtain a molten carbonate fuel cell that can Structure of the Invention The present invention has discovered that although copper has high conductivity and is an extremely common material as an electrically conductive material, it has excellent corrosion resistance in the fuel electrode environment of a molten carbonate fuel cell. Focusing on the fact that copper has a smaller hydrogen diffusion coefficient than nickel, etc., the above-mentioned problem was solved by applying copper as a coating to the surface of the current collector. In a carbonate fuel cell, a copper coating is formed on at least the surface of the current collector or a bipolar plate that also serves as the current collector in contact with the fuel electrode, and the copper coating of the current collector is reducible or non-reducible under elevated temperature conditions. It is placed in an active atmosphere to maintain the state of metallic copper. DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to Examples. Second
The figure shows a part of a bipolar plate of a type that also serves as a current collector used in this embodiment, and the same elements as in the conventional example are given the same numbers and explanations are omitted. The bipolar plate 1 is a 0.2 mm thick SUS304 plate shaped as shown in the figure, and has a total size of 20 cm square. The convex portions 6 of the current collector 1 are portions that come into contact with the electrodes and serve as a current collector. In this example, a copper coating 7 was formed on the surface of this bipolar plate on the fuel electrode 4 side in the following manner. First, after thoroughly cleaning the bipolar board, a copper coating with a thickness of 10 to 50 μm is formed using a copper plating bath.
Next, this was treated at 800° C. in a hydrogen stream to diffuse copper into the base material and form a copper coating 7. At this time, the optimal thickness of the coating is about 10 to 20 μm. Although not directly related to the present invention, a silver paste 8
was coated and baked at the same time using the heat treatment described above. A current collector with a copper coating formed on its surface was incorporated into a molten carbonate fuel cell, and the battery was tested for performance. The battery configuration includes the bipolar plate 1,
Consisting of an electrolyte body 5, a fuel electrode 4, and an oxidizer 3, the fuel electrode 4 is a sintered body of nickel powder, and the oxidizer electrode 3
A porous body of lithium nickel oxide was used as the material, and a porous body of nickel lithium oxide was used as the electrolyte body 5, which was obtained by adding lithium aluminate powder to a lithium carbonate-potassium carbonate mixture and hot-pressing the same. The battery uses hydrogen 80% as fuel gas.
%-20% carbon dioxide gas was passed through a bubbler at 60°C and humidified at 60°C at saturated water vapor pressure, and the oxidant gas was a 70% air-30% carbon dioxide gas mixture. Further, the gas supply amount was set at a fixed flow rate such that the hydrogen utilization rate was 60% and the oxygen utilization rate was 40% at a discharge current density of 150 mA/cm 2 , and the operating temperature was 650°C. All of the following battery operation tests were conducted under these conditions. For comparison, a conventional battery using a bipolar plate made only of stainless steel was tested under the same conditions, with the fuel electrode surface kept stainless steel and the oxidizer electrode surface coated with silver paste and baked. I did it. Figure 3 shows the situation immediately after the start of operation and the current density of 150 m.
The discharge curve after continuous operation at A/cm 2 for 1000 hours is shown. Regarding the discharge characteristics immediately after the start of operation, both Battery A according to the present invention (a battery with a copper coating formed thereon) and Battery B using conventional stainless steel as is, have the same initial performance as shown by the dashed line, and are 150mA/ cm2
The output of each battery was in the range of 0.84 to 0.86V.
After 1000 hours, Battery A (indicated by the solid line in the figure) showed a small performance drop, but showed performance close to the initial performance. On the other hand, in battery B (indicated by the broken line in the figure), a decrease in performance is observed due to an increase in internal resistance, which is believed to be caused by the contact resistance of the current collector.
This was also confirmed by the fact that a low conductive film was formed on the bipolar plate current collector portion of Battery B after the operation test. On the other hand, regarding the current collector of Battery A according to the present invention, which had a copper coating formed on its surface, it was observed that there was no change at all on the fuel electrode side compared to when it was assembled, and the metallic luster of copper was maintained. The table shows that after the test was completed, the resistance of the surface coatings of sample a cut from the bipolar plate of battery A having a copper coating and sample b cut from the bipolar plate of a conventional battery were measured as shown in Figure 4. This is the result. In FIG. 4, 8 is a silver paste, 9 is a lead, 10 is a bipolar plate made of SUS304, and 11 is an oxide film. The resistance of sample a was too small to be measured. From this, it is thought that the resistance between the electrodes is also kept extremely low.
【表】
次に前述と同様の方法で銅被膜を形成させたス
テンレス鋼板を炭酸リチウム−炭酸カリウム混合
塩（68：32mol％）中に700℃水素−炭酸ガス
（80：20）雰囲気下で1000時間半浸漬し、その耐
食性能を評価した。
その結果、浸漬していた溶融炭酸塩中にはブラ
ンクと同じ量の銅しか検出されず、銅被膜は安定
であることが確認された。試料表面の状態観察に
おいても異常は認められなかつた。
さらに寿命試験用として別に本発明による電池
を組立て、5000時間のテストをおこない、燃料極
側の銅被膜およびステンレス鋼板の状態を観察し
たが、試験前の状態と差異は認められなかつた。
これらのことからバイポーラ板の表面に銅を主
成分とする被膜を形成させ、還元性雰囲気下に保
持することによつて電極との接触抵抗を長期間に
わたつて低く保つことができることがわかる。
なお、本実施例では被膜の形成方法としてメツ
キを用いているが、これはほかの方法、たとえば
溶射法、蒸着法等によつて形成してもよい。また
本実施例ではステンレス鋼からなる集電体を兼ね
たバイポーラ板に銅被膜を形成させて用いている
が、これは他の材料、たとえば軟鋼、ニツケル基
合金、特殊耐熱合金などであつてもよく、集電体
の形状もどのようなものであつてもよい。また、
銅被膜を形成させる部分についても集電体または
集電体を兼ねるバイポーラ板の少なくとも燃料極
と接触する部分を含んでいればよく、集電体全面
でも電極と接触する部分のみでもよい。また本実
施例では銅被膜形成後、水素中で熱処理を行なつ
ているが、これは特になくても良く、また電池を
組立てた状態で昇温することによつて行なつても
良い。
発明の効果
以上のように本発明による溶融炭酸塩燃料電池
は集電体表面に銅被膜を形成させることにより各
電極との接触抵抗を長期間維持するとができる。
また銅中における水素の拡散係数がニツケルと比
較して非常に小さいために集電体基体材料の水素
脆性が抑制される効果もある。さらに銅は燃料ガ
スからバイポーラ板基体金属への炭素の拡散に対
しても高い抵抗を持つことが期待され、浸炭によ
る脆化を抑制する効果もあり、電池の信頼性と寿
命が高められている。[Table] Next, a stainless steel plate on which a copper coating was formed in the same manner as above was placed in a lithium carbonate-potassium carbonate mixed salt (68:32 mol%) at 700°C under a hydrogen-carbon dioxide gas (80:20) atmosphere. It was immersed for half an hour and its corrosion resistance performance was evaluated. As a result, only the same amount of copper as the blank was detected in the molten carbonate that had been immersed, confirming that the copper coating was stable. No abnormalities were observed when observing the condition of the sample surface. Furthermore, a battery according to the present invention was separately assembled for a life test and tested for 5,000 hours, and the conditions of the copper coating and stainless steel plate on the fuel electrode side were observed, but no differences were observed from the conditions before the test. These results show that by forming a coating containing copper as a main component on the surface of a bipolar plate and maintaining it in a reducing atmosphere, the contact resistance with the electrode can be kept low for a long period of time. In this embodiment, plating is used as the method for forming the film, but it may be formed by other methods such as thermal spraying or vapor deposition. In addition, in this example, a bipolar plate made of stainless steel that also serves as a current collector is used with a copper coating formed thereon, but other materials such as mild steel, nickel-based alloys, special heat-resistant alloys, etc. can also be used. The current collector may have any shape. Also,
The portion on which the copper coating is formed may include at least the portion of the current collector or the bipolar plate that also serves as the current collector that contacts the fuel electrode, and may be the entire surface of the current collector or only the portion that contacts the electrode. Further, in this example, heat treatment is performed in hydrogen after the formation of the copper coating, but this is not particularly necessary and may be performed by raising the temperature in the assembled state of the battery. Effects of the Invention As described above, the molten carbonate fuel cell according to the present invention can maintain contact resistance with each electrode for a long period of time by forming a copper film on the surface of the current collector.
Furthermore, since the diffusion coefficient of hydrogen in copper is much smaller than that in nickel, it also has the effect of suppressing hydrogen embrittlement of the current collector base material. Furthermore, copper is expected to have high resistance to carbon diffusion from the fuel gas into the bipolar plate base metal, and has the effect of suppressing embrittlement due to carburization, increasing the reliability and lifespan of batteries. .
第１図は従来の溶融炭酸塩燃料電池の集電体の
図、第２図は本発明の一実施例の溶融炭酸塩燃料
電池の集電体を兼ねるタイプのバイポーラ板の
図、第３図は電池の放電曲線、第４図は被膜抵抗
測定方法の図である。
１，１′……集電体（バイポーラ板）、２，２′
……低導電性酸化物被膜、３……酸化剤極、４…
…燃料極、５……電解質体、６……集電用突起、
７……銅被膜、８……銀ペースト、９……銀リー
ド、１０……SUS304、１１……酸化物被膜。
FIG. 1 is a diagram of a current collector of a conventional molten carbonate fuel cell, FIG. 2 is a diagram of a type of bipolar plate that also serves as a current collector of a molten carbonate fuel cell according to an embodiment of the present invention, and FIG. is a discharge curve of the battery, and FIG. 4 is a diagram showing a method for measuring film resistance. 1, 1'... Current collector (bipolar plate), 2, 2'
...Low conductive oxide film, 3...Oxidizer electrode, 4...
... fuel electrode, 5 ... electrolyte body, 6 ... current collection protrusion,
7...Copper coating, 8...Silver paste, 9...Silver lead, 10...SUS304, 11...Oxide coating.
Claims (1)
置され溶融炭酸塩を電解質として含有している電
解質体、および前記燃料極と酸化剤極の背面に接
しそれ自身が電流の流路となるとともにガスの流
路も形成する集電体を兼ねるバイポーラ板または
前記燃料極と酸化剤極の背面に接する集電体と前
記集電体に接するバイポーラ板とから構成される
溶融炭酸塩燃料電池において、集電体または集電
体を兼ねるバイポーラ板のすくなくとも燃料極と
接触する表面に銅の被膜を形成させたことを特徴
とする溶融炭酸塩燃料電池。1. A fuel electrode and an oxidizer electrode, an electrolyte body disposed between these two electrodes and containing molten carbonate as an electrolyte, and an electrolyte body that is in contact with the back surface of the fuel electrode and oxidizer electrode and that itself becomes a current flow path. In a molten carbonate fuel cell comprising a bipolar plate that also serves as a current collector that also forms a gas flow path, or a current collector that is in contact with the back surface of the fuel electrode and the oxidizer electrode, and a bipolar plate that is in contact with the current collector, A molten carbonate fuel cell characterized in that a copper coating is formed on at least the surface of a current collector or a bipolar plate that also serves as a current collector that comes into contact with a fuel electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59194207A JPS6171558A (en) | 1984-09-17 | 1984-09-17 | molten carbonate fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59194207A JPS6171558A (en) | 1984-09-17 | 1984-09-17 | molten carbonate fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6171558A JPS6171558A (en) | 1986-04-12 |
| JPH0564425B2 true JPH0564425B2 (en) | 1993-09-14 |
Family
ID=16320734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59194207A Granted JPS6171558A (en) | 1984-09-17 | 1984-09-17 | molten carbonate fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6171558A (en) |
-
1984
- 1984-09-17 JP JP59194207A patent/JPS6171558A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6171558A (en) | 1986-04-12 |
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