JP3466960B2 - Flat cell with holding thin frame and fuel cell using the same - Google Patents
Flat cell with holding thin frame and fuel cell using the sameInfo
- Publication number
- JP3466960B2 JP3466960B2 JP13979999A JP13979999A JP3466960B2 JP 3466960 B2 JP3466960 B2 JP 3466960B2 JP 13979999 A JP13979999 A JP 13979999A JP 13979999 A JP13979999 A JP 13979999A JP 3466960 B2 JP3466960 B2 JP 3466960B2
- Authority
- JP
- Japan
- Prior art keywords
- cell
- thin plate
- flat
- plate frame
- solid electrolyte
- 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 - Fee Related
Links
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
Landscapes
- Fuel Cell (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、平板型単電池とセ
パレータとを積層した固体電解質燃料電池に関し、特に
固体電解質燃料電池に供給したガスの積層間での漏洩を
防止した固体電解質燃料電池の平板型単電池に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid electrolyte fuel cell in which a flat type cell and a separator are laminated, and more particularly, to a solid electrolyte fuel cell in which leakage of gas supplied to the solid electrolyte fuel cell is prevented between laminations. The present invention relates to a flat cell.
【０００２】[0002]
【従来の技術】最近、例えば空気と水素をそれぞれ、酸
化剤ガスおよび燃料ガスとして、燃料が本来持っている
化学エネルギーを直接電気エネルギーに変換する燃料電
池が、省資源、環境保護の観点から注目されており、特
に固体電解質燃料電池は発電効率が高く、廃熱を有効に
利用できるなど多くの利点を有するため研究、開発が進
んでいる。2. Description of the Related Art Recently, a fuel cell which directly converts chemical energy originally possessed by a fuel into electric energy by using, for example, air and hydrogen as an oxidant gas and a fuel gas respectively, has attracted attention from the viewpoint of resource saving and environmental protection. In particular, solid electrolyte fuel cells have many advantages such as high power generation efficiency and effective utilization of waste heat, and thus research and development are progressing.
【０００３】図２１に、従来の内部マニホールド方式の
平板型固体電解質燃料電池を示す。FIG. 21 shows a conventional internal manifold type flat plate type solid electrolyte fuel cell.
【０００４】固体電解質燃料電池に燃料ガスと酸化剤ガ
スとを供給するため、固体電解質燃料電池のセパレータ
等にそれぞれのガスの給排気孔を設け、これらの孔から
各平板型単電池の各電極面に各ガスを給排気するように
したものを内部マニホールド形式と称している。In order to supply the fuel gas and the oxidant gas to the solid electrolyte fuel cell, the gas supply / exhaust holes for the respective gas are provided in the separator of the solid electrolyte fuel cell, etc., and the electrodes of each flat plate type cell are formed through these holes. An internal manifold type is one in which each gas is supplied and exhausted.
【０００５】図２１に示すように平板型固体電解質燃料
電池１００は、イットリアなどをドープしたジルコニア
焼結体（ＹＳＺ）からなる平板型固体電解質層６の両面
に、それぞれ（Ｌａ、Ｓｒ）ＭｎＯ３ の空気極８と、
Ｎｉ／ＹＳＺサーメットの燃料極１０とを配置してなる
平板型単電池４と、隣接する平板型単電池４同士を電気
的に直列に接続し、かつ平板型単電池４に燃料ガスと酸
化剤ガスとを分配するセパレータ１２からなり、セパレ
ータ１２に形成された収容部１６に平板型単電池４を収
容し、順次セパレータ１２と平板型単電池４とを交互に
積層し、通路１４からそれぞれ燃料ガスと酸化剤ガスと
導入し、各平板型単電池４の各電極８、１０面にこれら
燃料ガスと酸化剤ガスを接触させることにより起電力を
発生させている。As shown in FIG. 21, in a flat plate type solid electrolyte fuel cell 100, (La, Sr) MnO 3 is formed on both surfaces of a flat plate type solid electrolyte layer 6 made of a zirconia sintered body (YSZ) doped with yttria or the like. Air electrode 8
A flat plate type cell 4 in which a fuel electrode 10 of Ni / YSZ cermet is arranged and adjacent flat plate type cells 4 are electrically connected in series, and a fuel gas and an oxidizer are added to the flat plate type cell 4. A flat plate type cell 4 is housed in a containing portion 16 formed in the separator 12, and the separator 12 and the flat plate type cell 4 are alternately stacked in order, and fuel is discharged from the passage 14 respectively. A gas and an oxidant gas are introduced, and an electromotive force is generated by bringing the fuel gas and the oxidant gas into contact with the surfaces of the electrodes 8 and 10 of each flat-type cell 4.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、熱応力
に対応するためセパレータ１２の収容部１６と平板型単
電池４との間には若干の隙間が設けてあり、その隙間を
通して燃料ガスや酸化剤ガスが他方のガスの側に流入し
たり、あるいはセパレータ１２の積層間でガスのリーク
が発生することがある。このように、スタックの内部で
供給ガスのリークが生じると燃料ガスと酸化剤ガスが混
合して燃焼してしまい、燃料利用率が低下して燃料電池
の効率が低下し、更に燃料ガスの燃焼により局部的な温
度上昇を生じさせ、熱応力分布が不均一となり、クラッ
クや歪みの発生によりスタックの寿命を短縮させてしま
うことが発生することがあった。However, a slight gap is provided between the accommodating portion 16 of the separator 12 and the flat cell 4 in order to cope with the thermal stress, and the fuel gas and the oxidizer are passed through the gap. The gas may flow into the other gas side, or a gas leak may occur between the stacked layers of the separators 12. In this way, when the supply gas leaks inside the stack, the fuel gas and the oxidant gas are mixed and burned, the fuel utilization rate is lowered, the efficiency of the fuel cell is lowered, and the combustion of the fuel gas is further reduced. As a result, a local temperature rise may occur, the thermal stress distribution may become non-uniform, and cracks and strains may occur, which may shorten the life of the stack.
【０００７】[0007]
【課題を解決するための手段】本発明では、上記課題を
解決するため、燃料電池を次のように構成した。すなわ
ち、固体電解質燃料電池における平板型単電池に、この
平板型単電池の周囲に突出する保持薄板枠を設けること
とした。このように保持薄板枠を平板型単電池に設ける
ことにより、平板型単電池をセパレータの収容部に収容
したとき平板型単電池の保持薄板枠とセパレータとの間
とを密着させることにより、ガスが流通しないようにで
き、燃料ガスと酸化剤ガスとの混合を防止する。また、
平板型単電池とセパレータとを複数積層し、加熱した場
合の熱膨張差を緩和させることができる。In the present invention, in order to solve the above problems, a fuel cell is constructed as follows. That is, it was decided to provide a flat plate single cell in a solid oxide fuel cell with a holding thin plate frame projecting around the flat plate single cell. By providing the holding thin plate frame in the flat plate type battery in this manner, when the flat plate type battery is housed in the housing portion of the separator, the holding thin plate frame of the flat plate type battery and the separator are brought into close contact with each other, so that the gas Can be prevented from flowing, and mixing of the fuel gas and the oxidant gas is prevented. Also,
It is possible to reduce the difference in thermal expansion when a plurality of flat plate type cells and separators are stacked and heated.
【０００８】したがって、平板型単電池に設けられた保
持薄板枠によりスタック内での燃料ガスと酸化剤ガスの
燃焼を防止し、局所的な温度上昇によるスタック等の破
損や燃料電池の効率低下を防止できる。Therefore, combustion of the fuel gas and the oxidant gas in the stack is prevented by the holding thin plate frame provided in the flat type cell, and damage to the stack or the like due to a local temperature rise and the efficiency of the fuel cell are reduced. It can be prevented.
【０００９】取りつけられる保持薄板枠としては、Ａｌ
を０．１％以上含む合金製で厚さが0.5ｍｍ以下の薄板
で形成し、例えば平板型単電池の電解質層にガラス材、
ろう材あるいは溶接等により接合し、各ガスの流通、各
電極との接触を妨げないものとする。また、保持薄板枠
にうねりを形成し密着させるようにしてもよい。平板型
単電池としては、燃料極支持、あるいは空気極支持のい
ずれでもよい。The holding thin plate frame to be mounted is made of Al
Made of an alloy containing 0.1% or more and having a thickness of 0.5 mm or less, for example, a glass material for the electrolyte layer of a flat-type cell,
It should be joined by brazing or welding so as not to prevent the flow of each gas and the contact with each electrode. In addition, the holding thin plate frame may be formed with undulations so as to be in close contact. The flat cell may be supported by the fuel electrode or the air electrode.
【００１０】また、上記保持薄板枠と平板型単電池とを
用いて固体電解質燃料電池を構成し、ガスの漏洩を防止
するとともに構成部材間の熱膨張差に起因する応力を吸
収することとした。Further, a solid electrolyte fuel cell is constructed by using the holding thin plate frame and the flat plate type cell to prevent leakage of gas and absorb stress caused by a difference in thermal expansion between constituent members. .
【００１１】[0011]
【発明の実施の形態】本発明にかかる平板型単電池の実
施形態について説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a flat-type cell according to the present invention will be described.
【００１２】図５に、内部マニホールド方式の平板型固
体電解質燃料電池を示す。FIG. 5 shows an internal manifold type flat plate type solid electrolyte fuel cell.
【００１３】図５に示すように、燃料電池２は、セパレ
ータ１２と平板型単電池４からなり、平板型単電池４を
セパレータ１２に形成された収容部１６に収容して交互
に積層される。燃料電池２は、セパレータ１２等の電池
材料が空気および燃料の各ガスの給排気、分配および電
気的接続の機能を兼ね備える一体型の内部マニホールド
方式の構造である。As shown in FIG. 5, the fuel cell 2 comprises a separator 12 and a flat plate type cell 4, and the flat plate type cell 4 is housed in a housing portion 16 formed in the separator 12 and stacked alternately. . The fuel cell 2 has a structure of an integral internal manifold system in which the cell material such as the separator 12 has the functions of supplying / exhausting, distributing and electrically connecting each gas of air and fuel.
【００１４】セパレータ１２は、セラミックからなり、
中央部分に収容部１６を、また周囲に各ガスが流通する
通路１４を備え、通路１４から収容部１６へ各ガスが分
配されるようになっている。収容部１６は、平板型単電
池４とほぼ同形に形成してあり、底部には複数の溝２２
が形成してある。The separator 12 is made of ceramic,
A housing portion 16 is provided in the central portion, and a passage 14 through which each gas flows is provided around the housing portion, so that each gas is distributed from the passage 14 to the housing portion 16. The accommodating portion 16 is formed in substantially the same shape as the flat-type cell 4, and has a plurality of grooves 22 at the bottom.
Is formed.
【００１５】平板型単電池４は、図１、図３に示すよう
にイットリアなどをドープしたジルコニア焼結体（ＹＳ
Ｚ）からなる平板型固体電解質層６の両面に、それぞれ
（Ｌａ、Ｓｒ）ＭｎＯ３ の空気極８と、Ｎｉ／ＹＳＺ
サーメットの燃料極１０とを配置してあり、更に電解質
層６の上面には、保持薄板枠３が取り付けられている。As shown in FIGS. 1 and 3, the flat plate type cell 4 has a zirconia sintered body (YS) doped with yttria or the like.
Z) on both sides of the flat plate-type solid electrolyte layer 6, an air electrode 8 of (La, Sr) MnO 3 and Ni / YSZ, respectively.
A cermet fuel electrode 10 is disposed, and a holding thin plate frame 3 is attached to the upper surface of the electrolyte layer 6.
【００１６】保持薄板枠３は、ステンレス材、あるいは
ステンレスにアルミニウムを０．１％以上１０％以下含
有した合金等の薄板からなり、図４に示すように中央部
分が平板型単電池４の空気極８を避けるように空間にな
っている。保持薄板枠３の厚みは０．５ｍｍかそれ以下
であり、外辺は燃料ガスの通路１４等に達しない長さで
ある。保持薄板枠３の厚みを０．５ｍｍ以上とすると、
セパレータ１２の熱応力を緩和させる効果が減少してし
まうため好ましくない。これにより、保持薄板枠３は適
度な柔らかさと密閉性を備えている。またアルミニウム
の含有量が、０．１％以下では鋼表面に表われるＣｒ２
Ｏ３の皮膜が電池を劣化させ、一方１０％以上では、材
質がもろくなり、好ましくない。更に、保持薄板枠３の
熱膨張係数は、１４ｐｐｍ（２５℃〜８００℃）以下で
ある。熱膨張係数を１４ｐｐｍ以下としたのは、この数
値を超えると、熱膨張等に起因する応力がセパレータ１
２を破損させることが生じるためである。The holding thin plate frame 3 is made of a thin plate made of stainless steel or an alloy containing 0.1% or more and 10% or less of aluminum in stainless steel, and as shown in FIG. It is a space that avoids pole 8. The holding thin plate frame 3 has a thickness of 0.5 mm or less, and the outer periphery thereof has a length that does not reach the fuel gas passage 14 or the like. If the thickness of the holding thin plate frame 3 is 0.5 mm or more,
This is not preferable because the effect of relaxing the thermal stress of the separator 12 decreases. As a result, the holding thin plate frame 3 has appropriate softness and hermeticity. When the content of aluminum is 0.1% or less, Cr 2 appearing on the steel surface
The film of O 3 deteriorates the battery, while if it is 10% or more, the material becomes brittle, which is not preferable. Furthermore, the thermal expansion coefficient of the holding thin plate frame 3 is 14 ppm (25 ° C. to 800 ° C.) or less. The coefficient of thermal expansion is set to 14 ppm or less, because when the value exceeds this value, the stress due to thermal expansion or the like is increased by the separator 1.
This is because the 2 may be damaged.
【００１７】平板型単電池４と保持薄板枠３は、ガラス
等の接合材１１により平板型単電池４表面の周囲に一体
に固着してある。図２に保持薄板枠３を取り付けた平板
型単電池４を示す。The flat type cell 4 and the holding thin plate frame 3 are integrally fixed to the periphery of the surface of the flat type cell 4 by a bonding material 11 such as glass. FIG. 2 shows a flat plate type cell 4 to which the holding thin plate frame 3 is attached.
【００１８】次に、燃料電池２の作用について説明す
る。Next, the operation of the fuel cell 2 will be described.
【００１９】平板型単電池４をセパレータ１２の収容部
１６に取りつけ、順次積層して燃料電池２を組み立てる
と、保持薄板枠３がセパレータ１２間に挟まれ、平板型
単電池４と収容部１６との周囲の隙間を上方から閉塞す
る。When the flat-type cell 4 is attached to the accommodating portion 16 of the separator 12 and the fuel cell 2 is assembled by sequentially stacking the holding thin plate frame 3 between the separators 12, the flat-type cell 4 and the accommodating portion 16 are sandwiched. The gap around and is closed from above.
【００２０】すると、平板型単電池４の空気極８側部分
と収容部１６内に収容された燃料極６側の部分が保持薄
板枠３により遮断され、燃料電池２に空気および燃料ガ
スを供給して発電を開始したとき、燃料ガスが空気等の
酸化剤ガスと接して燃焼することがなく、燃料ガスと酸
化剤ガスの燃焼による効率の低下や局所的な温度上昇に
よるセパレータ１２やスタックの割れ、破損等を防止す
ることができる。Then, the air electrode 8 side portion of the flat plate type cell 4 and the fuel electrode 6 side portion accommodated in the accommodating portion 16 are cut off by the holding thin plate frame 3, and air and fuel gas are supplied to the fuel cell 2. Then, when the power generation is started, the fuel gas does not come into contact with the oxidant gas such as air and burns, and the efficiency of the combustion of the fuel gas and the oxidant gas is reduced and the temperature of the separator 12 or the stack is locally increased. It is possible to prevent cracking and damage.
【００２１】次に、保持薄板枠３の他の例を説明する。
図６は、保持薄板枠３にプレス加工等を行ない、周囲に
湾曲部を形成したものである。形成する湾曲部は、保持
薄板枠３の全周に形成しても、あるいは、一部箇所でも
よい。このようにすると、積層した際湾曲部が応力を吸
収し、安全性を高めることができる。Next, another example of the holding thin plate frame 3 will be described.
In FIG. 6, the holding thin plate frame 3 is subjected to press working or the like to form a curved portion on the periphery. The curved portion to be formed may be formed on the entire circumference of the holding thin plate frame 3, or may be a part thereof. In this way, the curved portion absorbs the stress when laminated and the safety can be improved.
【００２２】図７は、接合材１１を平板型単電池４の周
縁に配置し、保持薄板枠３を固着させたものである。こ
のようにすると、燃料極１０に直接接合材１１を接合さ
せることができ、電解質６の剥離の影響を受けることが
ない。また、燃料極１０は、溶接することができること
から、保持薄板枠３を溶接によって固着させてもよい。In FIG. 7, the bonding material 11 is arranged at the periphery of the flat plate type cell 4 and the holding thin plate frame 3 is fixed. By doing so, the bonding material 11 can be directly bonded to the fuel electrode 10 and is not affected by the separation of the electrolyte 6. Further, since the fuel electrode 10 can be welded, the holding thin plate frame 3 may be fixed by welding.
【００２３】図８は、保持薄板枠３を所定の形状に形成
したもので、保持薄板枠３は平板でなく、セパレータ１
２、あるいは支持手段の形状に応じて適宜加工してもよ
い。FIG. 8 shows the holding thin plate frame 3 formed in a predetermined shape. The holding thin plate frame 3 is not a flat plate but a separator 1
2, or may be appropriately processed depending on the shape of the supporting means.
【００２４】図９は、保持薄板枠３を電解質６上に直接
載せ、保持薄板枠３の内側に接合材１１を塗布したもの
で、このようにして保持薄板枠３を固定してもよい。In FIG. 9, the holding thin plate frame 3 is directly placed on the electrolyte 6, and the bonding material 11 is applied to the inside of the holding thin plate frame 3. The holding thin plate frame 3 may be fixed in this way.
【００２５】図１０は、保持薄板枠３を燃料極１０側に
固定した例である。保持薄板枠３は接合材１１で燃料極
１０に接着してあり、更に、燃料極１０の側面全周に接
合材１１が塗布してある。これは、燃料極１０は多孔質
であることから、接合材１１によって燃料極１０の内部
を通過して漏洩するガスを遮断するためである。また、
このように燃料極１０側に固定した保持薄板枠３を屈曲
させて空気極８側に延設してもよい。FIG. 10 shows an example in which the holding thin plate frame 3 is fixed to the fuel electrode 10 side. The holding thin plate frame 3 is adhered to the fuel electrode 10 with a bonding material 11, and the bonding material 11 is applied to the entire circumference of the side surface of the fuel electrode 10. This is because, since the fuel electrode 10 is porous, the bonding material 11 blocks the gas passing through the inside of the fuel electrode 10 and leaking. Also,
In this way, the holding thin plate frame 3 fixed to the fuel electrode 10 side may be bent and extended to the air electrode 8 side.
【００２６】更に保持薄板枠３は、平板型単電池４の周
囲のみでなく、図１１に示すように保持薄板枠３の外周
部分をセパレータ１２の形状と同様に形成してもよい。
このように形成すれば、積層した際保持薄板枠３の段差
が生じることがなく、密着度を高めることができる。Further, the holding thin plate frame 3 may have not only the periphery of the flat plate type cell 4 but also the outer peripheral portion of the holding thin plate frame 3 having the same shape as the separator 12 as shown in FIG.
If formed in this way, a level difference of the holding thin plate frame 3 does not occur when stacked, and the degree of adhesion can be improved.
【００２７】更に、保持薄板枠付き平板型単電池を他の
構造の固体電解質燃料電池に用いた例を説明する。Further, an example in which the flat plate type single cell with a holding thin plate frame is used in a solid electrolyte fuel cell having another structure will be described.
【００２８】図１４に、固体電解質燃料電池を示す。FIG. 14 shows a solid oxide fuel cell.
【００２９】燃料電池４２は、セラミックセパレータ４
４と、合金セパレータ４６と、平板型単電池４８を組み
合わせて構成された単電池５０を複数積層して形成して
あり、セラミックセパレータ４４や合金セパレータ４６
が、空気および燃料の各ガスの給排気、分配および電気
的接続の機能を兼ね備える一体型の内部マニホールド方
式の平板型固体電解質燃料電池である。The fuel cell 42 comprises a ceramic separator 4
4, an alloy separator 46, and a flat-type cell 48 are combined to form a plurality of unit cells 50. The ceramic separator 44 and the alloy separator 46 are formed.
Is a flat-type solid electrolyte fuel cell of an integrated internal manifold type having the functions of supply / exhaust of air and fuel, distribution, and electrical connection.
【００３０】セラミックセパレータ４４は、ほぼ正方形
で、アルミナ、マグネシア等のセラミック材から形成さ
れている。セラミックセパレータ４４の中央には、図１
４に示すように平板型単電池８を収容する収容部５２が
形成してあり、収容部５２の周囲に燃料ガス用供給通路
５４と、燃料ガス用排気通路５６と、酸化剤ガス用供給
通路５８と、酸化剤ガス用排気通路６０が形成されてい
る。The ceramic separator 44 has a substantially square shape and is made of a ceramic material such as alumina or magnesia. The center of the ceramic separator 44 is shown in FIG.
4, a housing portion 52 for housing the flat plate type cell 8 is formed, and a fuel gas supply passage 54, a fuel gas exhaust passage 56, and an oxidant gas supply passage are formed around the housing portion 52. 58 and an oxidant gas exhaust passage 60 are formed.
【００３１】収容部５２は、平板型単電池４８にほぼ等
しい正方形状に形成してあり、収容部５２の底部には、
燃料ガス用供給通路５４から燃料ガス用排気通路５６に
向かう方向に沿って底部全面に溝５３と、中心に導電材
を詰める導電孔５１が形成してある。The accommodating portion 52 is formed in a square shape almost equal to the flat type cell 48, and the bottom of the accommodating portion 52 is
A groove 53 is formed on the entire bottom surface along the direction from the fuel gas supply passage 54 to the fuel gas exhaust passage 56, and a conductive hole 51 for filling a conductive material is formed at the center.
【００３２】図１２、図１３に、保持薄板枠３の外周部
分をセラミックセパレータ４４の形状と同様に加工した
内部マニホールド方式の平板型固体電解質燃料電池４２
の断面図を示す。図１２は、図１５におけるＡ矢視の断
面図であり、図１３は、図１５におけるＢ矢視の断面図
である。12 and 13, a flat plate type solid electrolyte fuel cell 42 of the internal manifold type in which the outer peripheral portion of the holding thin plate frame 3 is processed in the same manner as the shape of the ceramic separator 44.
FIG. 12 is a sectional view taken along arrow A in FIG. 15, and FIG. 13 is a sectional view taken along arrow B in FIG.
【００３３】燃料ガス用供給通路５４と、燃料ガス用排
気通路５６は、収容部５２を挟んで対向して形成してあ
り、かつ収容部５２の向き合う辺と平行にほぼ同じ長さ
に形成してある。また燃料ガス用供給通路５４と燃料ガ
ス用排気通路５６の内側には、通路７４、７６が形成し
てある。通路７４、７６は、溝５３に開口し、かつ図１
２に示すように段部７０、７１が形成してあり、段部７
０、７１により通路７４、７６が燃料ガス用供給通路５
４と燃料ガス用排気通路５６にそれぞれ連通している。The fuel gas supply passage 54 and the fuel gas exhaust passage 56 are formed so as to face each other with the accommodating portion 52 interposed therebetween, and are formed to have substantially the same length in parallel with the facing sides of the accommodating portion 52. There is. Passages 74 and 76 are formed inside the fuel gas supply passage 54 and the fuel gas exhaust passage 56. The passages 74, 76 open into the groove 53 and
As shown in FIG. 2, stepped portions 70 and 71 are formed, and the stepped portion 7
0, 71 make the passages 74, 76 the fuel gas supply passage 5
4 and the fuel gas exhaust passage 56, respectively.
【００３４】また、合金セパレータ４６は、耐熱性合金
からなり、裏面側に酸化剤ガス用供給通路５８から酸化
剤ガス用排気通路６０に向かう方向に沿った溝（図示せ
ず）が複数形成してある。溝は、平板型単電池４８を積
層したとき、その空気極に対面するように平板型単電池
４８とほぼ同一形状の部分に形成してある。酸化剤ガス
用供給通路５８と酸化剤ガス用排気通路６０は、溝が形
成されている箇所の向き合う辺と平行に、かつその辺と
ほぼ同じ長さに形成してある。The alloy separator 46 is made of a heat-resistant alloy and has a plurality of grooves (not shown) formed on the back surface thereof along the direction from the oxidant gas supply passage 58 to the oxidant gas exhaust passage 60. There is. The groove is formed in a portion having substantially the same shape as the flat plate type single battery 48 so as to face the air electrode when the flat plate type single battery 48 is stacked. The oxidant gas supply passage 58 and the oxidant gas exhaust passage 60 are formed in parallel with the facing sides of the portion where the groove is formed and with substantially the same length as the sides.
【００３５】また、酸化剤ガス用供給通路５８と酸化剤
ガス用排気通路６０の内側には、溝に開口する通路７
８、８０が形成してある。更に酸化剤ガス用供給通路５
８と通路７８の間、及び酸化剤ガス用排気通路６０と通
路７０の間に、図１３に示すように段部７２、７３が形
成してあり、段部７２、７３により通路７８、８０が酸
化剤ガス用供給通路５８と酸化剤ガス用排気通路６０と
それぞれ連通している。Inside the oxidant gas supply passage 58 and the oxidant gas exhaust passage 60, there is a passage 7 that opens into a groove.
8 and 80 are formed. Further, the oxidant gas supply passage 5
8 and the passage 78, and between the oxidant gas exhaust passage 60 and the passage 70, step portions 72 and 73 are formed as shown in FIG. 13, and the step portions 72 and 73 form the passages 78 and 80. The oxidant gas supply passage 58 and the oxidant gas exhaust passage 60 communicate with each other.
【００３６】平板型単電池４８は、ほぼ正方形で、ＹＳ
Ｚからなる平板型固体電解質層の両面にそれぞれ（Ｌ
ａ、Ｓｒ）ＭｎＯ３ の空気極とＮｉ／ＹＳＺサーメッ
トの燃料極（いずれも図示せず）とを配置して形成して
ある。更に平板型単電池８の表面には保持薄板枠３が取
り付けられている。The flat type cell 48 has a substantially square shape and is of the YS type.
On both sides of the flat plate type solid electrolyte layer made of Z (L
a, Sr) MnO 3 air electrode and Ni / YSZ cermet fuel electrode (neither shown). Further, the holding thin plate frame 3 is attached to the surface of the flat plate type cell 8.
【００３７】次に、燃料電池４２の作用について説明す
る。Next, the operation of the fuel cell 42 will be described.
【００３８】燃料電池４２は、図１２または図１３に示
すように、セラミックセパレータ４４と平板型単電池４
８と合金セパレータ４６を交互に積層し、上下方向に所
定の荷重等をかけ、互いの隙間を密閉する。すると、各
セラミックセパレータ４４と合金セパレータ４６の燃料
ガス用供給通路５４、燃料ガス用排気通路５６、酸化剤
ガス用供給通路５８、酸化剤ガス用排気通路６０が縦方
向にそれぞれ連通し、燃料電池４０の内部に各ガスの通
路が上下方向に４本形成される。更に、保持薄板枠３に
より収容部と平板型単電池４８との間が閉鎖される。As shown in FIG. 12 or 13, the fuel cell 42 includes a ceramic separator 44 and a flat-type cell 4.
8 and the alloy separator 46 are alternately laminated, and a predetermined load or the like is applied in the vertical direction to seal the gap between them. Then, the fuel gas supply passage 54, the fuel gas exhaust passage 56, the oxidant gas supply passage 58, and the oxidant gas exhaust passage 60 of the ceramic separators 44 and the alloy separators 46 communicate with each other in the vertical direction, and the fuel cell Four passages for each gas are formed inside 40 in the vertical direction. Further, the holding thin plate frame 3 closes the space between the accommodation portion and the flat plate type cell 48.
【００３９】そして、燃料ガス用供給通路５４に燃料ガ
スを供給すると、図１２の矢印に示すように燃料ガス
は、段部７０を通って通路７４を通り、溝５３を流れ、
平板型単電池４８の燃料極に接触する。平板型単電池４
８の燃料極に接触した燃料ガスは、溝５３を通過して通
路７６を通り、段部７１から燃料ガス用排気通路５６に
流入し、排気される。When the fuel gas is supplied to the fuel gas supply passage 54, the fuel gas flows through the step portion 70, the passage 74 and the groove 53 as shown by the arrow in FIG.
It contacts the fuel electrode of the flat cell 48. Flat type cell 4
The fuel gas that has come into contact with the fuel electrode of No. 8 passes through the groove 53, passes through the passage 76, flows from the step portion 71 into the fuel gas exhaust passage 56, and is exhausted.
【００４０】また、図１３に示すように空気を酸化剤ガ
ス用供給通路５８に供給すると、空気は段部７２を通
り、通路７８から溝に流入して平板型単電池４８の空気
極に接触する。平板型単電池４８の空気極に接触した空
気は、溝を通過して通路８０を通り、段部７３から酸化
剤ガス用排気通路６０に流入し、排気される。Further, as shown in FIG. 13, when air is supplied to the oxidizing gas supply passage 58, the air passes through the stepped portion 72, flows into the groove from the passage 78, and comes into contact with the air electrode of the flat type cell 48. To do. The air in contact with the air electrode of the flat plate type cell 48 passes through the groove, passes through the passage 80, flows from the stepped portion 73 into the oxidant gas exhaust passage 60, and is exhausted.
【００４１】燃料電池４２を所定の温度に上昇させた上
で、このように平板型単電池４８の燃料極と空気極にそ
れぞれ燃料ガスと空気とを接触させると、平板型単電池
４８で発電がおこなわれ、各単電池５０を直列に接続し
て、電流を取り出すことができる。When the fuel cell 42 is heated to a predetermined temperature and the fuel gas and the air are respectively brought into contact with the fuel electrode and the air electrode of the flat plate type cell 48, the flat plate type cell 48 generates electricity. Then, the electric currents can be taken out by connecting the unit cells 50 in series.
【００４２】このように燃料電池４２によれば、各ガス
の通路が平板型単電池４８の各辺に対して平行で、しか
も各辺とほぼ同じ長さに形成してあることから、燃料ガ
ス及び空気等の酸化剤ガスが均等に平板型単電池４８に
接触することから、効率のよい発電作用を実現すること
ができる。更に、保持薄板枠３により燃料ガスと空気と
の遮断が完全に行なわれ、ガスのリークによる発電効率
の低下を防止し、また局所的な温度上昇を防止してセパ
レータ４４の破損、われ等を防止することができる。As described above, according to the fuel cell 42, the passage of each gas is formed in parallel to each side of the flat plate type cell 48 and is formed to have substantially the same length as each side. Since the oxidant gas such as air and the air are evenly contacted with the flat-type cell 48, an efficient power generation operation can be realized. Further, the holding thin plate frame 3 completely shuts off the fuel gas from the air to prevent a decrease in power generation efficiency due to a gas leak, and also to prevent a local rise in temperature to prevent the separator 44 from being damaged or cracked. Can be prevented.
【００４３】また、保持薄板枠３は、平板型単電池４の
周囲のみでなく、図１５に示すように保持薄板枠３の外
周部分をセパレータ４４と同様の形状に形成してもよ
い。Further, the holding thin plate frame 3 may have not only the periphery of the flat plate type cell 4 but also the outer peripheral portion of the holding thin plate frame 3 in the same shape as the separator 44 as shown in FIG.
【００４４】更に他の実施形態を図１６に示す。FIG. 16 shows still another embodiment.
【００４５】この燃料電池８２は、セパレータ９２に４
箇所の収容部９６を備え、また各収容部９６に適合した
平板型単電池８４を収容部９６と同数備えて構成されて
いる。平板型単電池８４の構成は、形状が異なるのみで
上記平板型単電池４と同様の構成である。更に保持薄板
枠８３は、平板型単電池８４の空気極８８に合わせて切
り欠きが形成してある。This fuel cell 82 has four separators 92.
It is configured such that it is provided with the accommodating portions 96 at some locations, and the same number of the plate type single cells 84 that are suitable for each accommodating portion 96 are provided. The flat plate type cell 84 has the same configuration as the flat plate type cell 4 described above except for the shape. Further, the holding thin plate frame 83 is formed with a notch in accordance with the air electrode 88 of the flat plate type cell 84.
【００４６】このように平板型単電池８４を複数有する
燃料電池８２においても、保持薄板枠８３を用いること
により、ガスのシール性を向上させ、しかも熱応力差を
解消させることができる。As described above, also in the fuel cell 82 having a plurality of flat type cells 84, by using the holding thin plate frame 83, the gas sealability can be improved and the thermal stress difference can be eliminated.
【００４７】また、保持薄板枠３は、平板型単電池８４
の周囲のみでなく、図１７に示すように保持薄板枠３の
外周部分をセパレータ９２と同様の形状に形成してもよ
い。Further, the holding thin plate frame 3 is a flat type cell 84.
In addition to the periphery, the outer peripheral portion of the holding thin plate frame 3 may be formed in the same shape as the separator 92 as shown in FIG.
【００４８】尚上記例では、接合材１１をガラス製とし
たが、本発明は接合材１１をニッケルをベースとしたろ
う材、あるいは活性化金属ろう（Ａｇ−Ｃｕ−Ｔｉ等）
としてもよく、これを用いて保持薄板枠３を固着させて
もよい。接合材１１にガラスを用いた場合は、接合作業
が容易であり、また、ろう材等を用いて接合した場合
は、強固な接合力を得ることができる。In the above example, the joining material 11 is made of glass, but in the present invention, the joining material 11 is a nickel-based brazing material or an activated metal brazing material (Ag-Cu-Ti, etc.).
The holding thin plate frame 3 may be fixed by using this. When glass is used as the bonding material 11, the bonding work is easy, and when bonding is performed using a brazing material or the like, a strong bonding force can be obtained.
【００４９】また、平板型単電池４の形状は、四角形に
限らず、他の角形、楕円形、あるいは図１８から図２０
に示すような円形等他の形状であってもよい。図１８
は、他の例にかかる保持薄板枠３付きの平板型単電池４
の平面図であり、図１９は図１８に示す平板型単電池４
の平面図であり、図２０は、図１８に示す保持薄板枠３
を示す図である。さらに、平板型単電池４は平板状に限
らず、曲面状、凹凸を有する等適宜湾曲していてもよ
い。Further, the shape of the flat plate type cell 4 is not limited to a quadrangle, but other square shapes, elliptical shapes, or FIGS.
Other shapes such as a circle as shown in FIG. FIG.
Is a flat-type cell 4 with a holding thin plate frame 3 according to another example.
FIG. 19 is a plan view of the flat-type cell 4 shown in FIG.
20 is a plan view of the holding thin plate frame 3 shown in FIG.
FIG. Furthermore, the flat plate type battery 4 is not limited to a flat plate shape, and may be curved as appropriate such as having a curved surface shape or unevenness.
【００５０】[0050]
【発明の効果】本発明の保持薄板枠付き平板型単電池に
よれば、平板型単電池に取りつけられた保持薄板枠によ
り、平板型単電池とセパレータとを積層した場合、セパ
レータと平板型単電池との隙間を閉鎖し、燃料ガスと酸
化剤ガスの混合を防止し、局所的な燃料ガスの燃焼によ
る温度分布の不均一を防止し、かつ熱膨張の差によるス
タック等の破損を防ぎ、また、燃料電池の発電効率の低
下を防止することができる。According to the flat plate type single cell with the holding thin plate frame of the present invention, when the flat plate type single cell and the separator are laminated by the holding thin plate frame attached to the flat plate type single cell, the separator and the flat plate type single cell are stacked. Closing the gap with the cell, preventing the mixing of fuel gas and oxidant gas, preventing uneven temperature distribution due to local combustion of fuel gas, and preventing damage to the stack etc. due to difference in thermal expansion, In addition, it is possible to prevent a decrease in power generation efficiency of the fuel cell.
【図１】本発明にかかる保持薄板枠付き平板型単電池を
示す図である。FIG. 1 is a view showing a flat plate type cell with a holding thin plate frame according to the present invention.
【図２】図１に示す保持薄板枠付き平板型単電池の平面
図である。FIG. 2 is a plan view of the flat plate type cell with a holding thin plate frame shown in FIG.
【図３】平板型単電池の平面図である。FIG. 3 is a plan view of a flat cell.
【図４】保持薄板枠を示す図である。FIG. 4 is a view showing a holding thin plate frame.
【図５】本発明にかかる固体電解質燃料電池を示す図で
ある。FIG. 5 is a diagram showing a solid oxide fuel cell according to the present invention.
【図６】本発明にかかる保持薄板枠付き平板型単電池の
他の例を示す図である。FIG. 6 is a view showing another example of a flat plate type cell with a holding thin plate frame according to the present invention.
【図７】本発明にかかる保持薄板枠付き平板型単電池の
他の例を示す図である。FIG. 7 is a diagram showing another example of a flat plate type cell with a holding thin plate frame according to the present invention.
【図８】本発明にかかる保持薄板枠付き平板型単電池の
他の例を示す図である。FIG. 8 is a diagram showing another example of a flat plate type cell with a holding thin plate frame according to the present invention.
【図９】本発明にかかる保持薄板枠付き平板型単電池の
他の例を示す図である。FIG. 9 is a diagram showing another example of a flat plate type cell with a holding thin plate frame according to the present invention.
【図１０】本発明にかかる保持薄板枠付き平板型単電池
の他の例を示す図である。FIG. 10 is a view showing another example of a flat plate type cell with a holding thin plate frame according to the present invention.
【図１１】本発明にかかる固体電解質燃料電池の他の例
を示す図である。FIG. 11 is a diagram showing another example of the solid electrolyte fuel cell according to the present invention.
【図１２】本発明にかかる固体電解質燃料電池の他の例
を示す図である。FIG. 12 is a view showing another example of the solid electrolyte fuel cell according to the present invention.
【図１３】本発明にかかる固体電解質燃料電池の他の例
を示す図である。FIG. 13 is a diagram showing another example of the solid electrolyte fuel cell according to the present invention.
【図１４】本発明にかかる固体電解質燃料電池を示す分
解斜視図である。FIG. 14 is an exploded perspective view showing a solid oxide fuel cell according to the present invention.
【図１５】本発明にかかる固体電解質燃料電池の他の例
を示す分解斜視図である。FIG. 15 is an exploded perspective view showing another example of the solid electrolyte fuel cell according to the present invention.
【図１６】本発明にかかる固体電解質燃料電池の他の例
を示す図である。FIG. 16 is a diagram showing another example of a solid oxide fuel cell according to the present invention.
【図１７】本発明にかかる固体電解質燃料電池の他の例
を示す図である。FIG. 17 is a diagram showing another example of the solid electrolyte fuel cell according to the present invention.
【図１８】他の例にかかる保持薄板枠付き平板型単電池
の平面図である。FIG. 18 is a plan view of a flat plate type cell with a holding thin plate frame according to another example.
【図１９】図１８の平板型単電池の平面図である。FIG. 19 is a plan view of the flat plate type cell of FIG. 18.
【図２０】図１８の保持薄板枠を示す図である。20 is a view showing the holding thin plate frame of FIG.
【図２１】従来の固体電解質燃料電池を示す分解斜視図
である。FIG. 21 is an exploded perspective view showing a conventional solid electrolyte fuel cell.
２、４２、８２ 燃料電池 ３ 保持薄板枠 ４、４８、８４ 平板型単電池 ６ 電解質 ８、８８ 空気極 １０ 燃料極 １２、９２ セパレータ １６、５２、９６ 収容部 １４、５４ 燃料ガス用供給通路 １６、５６ 燃料ガス用排気通路 １８、５８ 酸化剤ガス用供給通路 ２０、６０ 酸化剤ガス用排気通路 ２２ 溝 ３０、３１、３２、３３ 段部 ３４、３６、３８、４０ 通路 ４４ セラミックセパレータ ４６ 合金セパレータ ５０ 単電池 2, 42, 82 Fuel cell 3 holding thin plate frame 4, 48, 84 Flat type single cell 6 electrolyte 8,88 Air electrode 10 fuel pole 12, 92 separator 16, 52, 96 accommodation 14, 54 Fuel gas supply passage 16,56 Fuel gas exhaust passage 18, 58 Oxidant gas supply passage 20, 60 Exhaust passage for oxidant gas 22 groove 30, 31, 32, 33 steps 34, 36, 38, 40 passages 44 Ceramic separator 46 alloy separator 50 single cells
フロントページの続き (72)発明者 浦谷 美由紀 千葉県習志野市津田沼６−７−20−204 (56)参考文献 特開 平10−199555（ＪＰ，Ａ) 特開 平９−115530（ＪＰ，Ａ) 特開 平10−106597（ＪＰ，Ａ) 特開 平７−14591（ＪＰ，Ａ) 特開 平６−342668（ＪＰ，Ａ) 特開 平６−29034（ＪＰ，Ａ) 特開 平６−302328（ＪＰ，Ａ) 特開 平４−17266（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 8/00 - 8/24 Front page continuation (72) Inventor Miyuki Uraya 6-7-20-204 Tsudanuma, Narashino-shi, Chiba (56) References JP-A-10-199555 (JP, A) JP-A-9-115530 (JP, A) JP 10-106597 (JP, A) JP 7-14591 (JP, A) JP 6-342668 (JP, A) JP 6-29034 (JP, A) JP 6-302328 (JP, A) JP-A-4-17266 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01M 8/00-8/24
Claims (20)
極及び空気極とから構成される固体電解質燃料電池の平
板型単電池において、 前記平板型単電池に、該平板型単電池の周囲に突出する
保持薄板枠を取り付け、前記保持薄板枠は、Ａｌを０．
１％以上１０％以下含有する合金のみで構成されている
ことを特徴とする薄板枠付き平板型単電池。1. A flat-type cell for a solid electrolyte fuel cell comprising a solid electrolyte and a fuel electrode and an air electrode sandwiching the solid electrolyte, wherein the flat-type cell is provided around the flat-type cell. A protruding holding thin plate frame is attached, and the holding thin plate frame is made of Al.
A flat plate type cell with a thin plate frame, which is composed only of an alloy containing 1% or more and 10% or less.
さであることを特徴とする請求項１に記載の薄板枠付き
平板型単電池。2. The flat type cell with a thin plate frame according to claim 1, wherein the holding thin plate frame has a thickness of 0.5 mm or less.
ら８００℃で平均１４ｐｐｍ以下の合金であることを特
徴とする請求項１または２に記載の薄板枠付き平板型単
電池。3. The flat type cell with a thin plate frame according to claim 1, wherein the holding thin plate frame is an alloy having an average thermal expansion coefficient of 14 ppm or less at room temperature to 800 ° C.
るためのうねりを有することを特徴とする請求項１〜３
のいずれか１項に記載の薄板枠付き平板型単電池。4. The holding thin plate frame has undulations for absorbing stress on the periphery thereof.
A flat plate type cell with a thin plate frame according to any one of 1.
と、酸化ケイ素を含むガラス系シール剤を用いて接合さ
れていることを特徴とする請求項１〜４のいずれか１項
に記載の薄板枠付き平板型単電池。5. The holding thin plate frame is joined to the flat plate type cell using a glass-based sealant containing silicon oxide, according to any one of claims 1 to 4. Flat-type cell with thin plate frame.
と、ろう材によりろう付けされていることを特徴とする
請求項１〜４のいずれか１項に記載の薄板枠付き平板型
単電池。6. The flat-plate single cell with a thin plate frame according to claim 1, wherein the holding thin-plate frame is brazed to the flat-plate cell by a brazing material. battery.
により溶接されていることを特徴とする請求項１〜４の
いずれか１項に記載の薄板枠付き平板型単電池。7. The flat type cell with a thin plate frame according to claim 1, wherein the holding thin plate frame is welded to the fuel electrode by a welding method.
ことを特徴とする請求項７に記載の薄板枠付き平板型単
電池。8. The flat cell with a thin plate frame according to claim 7, wherein the welded portion is an end surface of the fuel electrode.
膜型単電池であることを特徴とする請求項１〜８のいず
れか１項に記載の薄板枠付き平板型単電池。9. The flat plate type single cell with a thin plate frame according to claim 1, wherein the flat plate type single cell is a support membrane type single cell for supporting a fuel electrode.
持膜型単電池であることを特徴とする請求項１〜６のい
ずれか１項に記載の薄板枠付き平板型単電池。10. The flat plate type single cell with a thin plate frame according to claim 1, wherein the flat plate type single cell is a support film type single cell that supports an air electrode.
解質を挟む燃料極及び空気極とから構成される平板型単
電池と、セパレータとからなる固体電解質燃料電池にお
いて、 前記平板型単電池に、該平板型単電池の周囲に突出す
る、Ａｌを０．１％以上１０％以下含有する合金のみで
構成される保持薄板枠を取り付け、前記セパレータと前
記平板型単電池とを順次積層し、ガスシールを、前記保
持薄板枠を利用して行なわせることを特徴とした固体電
解質燃料電池。11. A solid electrolyte fuel cell comprising a flat plate type solid electrolyte, a flat plate type cell composed of a fuel electrode and an air electrode sandwiching the flat plate type solid electrolyte, and a separator, wherein: , Only an alloy containing 0.1% or more and 10% or less of Al protruding around the flat type cell
A solid electrolyte fuel cell characterized in that a holding thin plate frame configured is attached, the separator and the flat plate type cell are sequentially stacked, and gas sealing is performed using the holding thin plate frame.
厚さであることを特徴とする請求項１１に記載の固体電
解質燃料電池。12. The solid electrolyte fuel cell according to claim 11, wherein the holding thin plate frame has a thickness of 0.5 mm or less.
温から８００℃で平均１４ｐｐｍ以下の合金であること
を特徴とする請求項１１または１２に記載の薄板枠付き
固体電解質燃料電池。13. The solid electrolyte fuel cell with a thin plate frame according to claim 11, wherein the holding thin plate frame is an alloy having an average thermal expansion coefficient of 14 ppm or less at room temperature to 800 ° C.
めのうねりを周囲に有することを特徴とする請求項１１
〜１３のいずれか１項に記載の固体電解質燃料電池。14. The holding thin plate frame has undulations for absorbing stress on the periphery thereof.
The solid electrolyte fuel cell according to any one of 1 to 13.
と、酸化ケイ素を含むガラス系シール剤を用いて接合さ
れていることを特徴とする請求項１１〜１４のいずれか
１項に記載の固体電解質燃料電池。15. The holding thin plate frame is joined to the flat plate type cell using a glass-based sealant containing silicon oxide, according to claim 11. Solid electrolyte fuel cell.
と、ろう材によりろう付けされていることを特徴とする
請求項１１〜１４のいずれか１項に記載の固体電解質燃
料電池。16. The solid electrolyte fuel cell according to claim 11, wherein the holding thin plate frame is brazed to the flat plate type single cell with a brazing material.
法により溶接されていることを特徴とする請求項１１〜
１４のいずれか１項に記載の固体電解質燃料電池。17. The holding thin plate frame is welded to the fuel electrode by a welding method.
15. The solid electrolyte fuel cell according to any one of 14 above.
ることを特徴とする請求項１７に記載の固体電解質燃料
電池。18. The solid electrolyte fuel cell according to claim 17, wherein the welded portion is an end surface of the fuel electrode.
持膜型単電池であることを特徴とする請求項１１〜１８
のいずれか１項に記載の固体電解質燃料電池。19. The flat membrane type cell is a support membrane type cell for supporting a fuel electrode.
The solid electrolyte fuel cell according to any one of 1.
持膜型単電池であることを特徴とする請求項１１〜１６
のいずれか１項に記載の固体電解質燃料電池。20. The flat plate type cell is a support membrane type cell for supporting an air electrode.
The solid electrolyte fuel cell according to any one of 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13979999A JP3466960B2 (en) | 1999-05-20 | 1999-05-20 | Flat cell with holding thin frame and fuel cell using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13979999A JP3466960B2 (en) | 1999-05-20 | 1999-05-20 | Flat cell with holding thin frame and fuel cell using the same |
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| Publication Number | Publication Date |
|---|---|
| JP2000331692A JP2000331692A (en) | 2000-11-30 |
| JP3466960B2 true JP3466960B2 (en) | 2003-11-17 |
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|---|---|---|---|
| JP13979999A Expired - Fee Related JP3466960B2 (en) | 1999-05-20 | 1999-05-20 | Flat cell with holding thin frame and fuel cell using the same |
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