JPH0536417A - Hollow thin plate type solid electrolytic fuel cell - Google Patents
Hollow thin plate type solid electrolytic fuel cellInfo
- Publication number
- JPH0536417A JPH0536417A JP3211747A JP21174791A JPH0536417A JP H0536417 A JPH0536417 A JP H0536417A JP 3211747 A JP3211747 A JP 3211747A JP 21174791 A JP21174791 A JP 21174791A JP H0536417 A JPH0536417 A JP H0536417A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- power generation
- fuel
- cell
- thin plate
- 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
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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1231—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte with both reactants being gaseous or vaporised
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/2428—Grouping by arranging unit cells on a surface of any form, e.g. planar or tubular
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/2432—Grouping of unit cells of planar configuration
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- 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
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、固体電解質燃料電池の
発電セルと発電装置の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a power generation cell and a power generation device of a solid oxide fuel cell.
【０００２】[0002]
【従来の技術】固体電解質燃料電池（以下、「ＳＯＦ
Ｃ」と略称で示す）は、一般に酸素イオン電導性を有す
る固体物質を電解質として使用し、１０００℃近辺とい
う高温で使用される。このため、使用材料が限定され、
電解質のみならず各電極、集電体等のほとんど全てに固
体材料が用いられ、例えば電解質にはイットリア（Ｙ2
Ｏ3）を混ぜたジルコニア（ＺｒＯ2）（以下ＹＳＺと略
す）、また燃料極にはニッケルとジルコニアのサーメッ
ト、酸化剤極にはＬａＳｒＭｎＯ3やＬａＣｏＯ3等のぺ
ロブスカイト系結晶構造の酸化物導電材料が使用されて
いる。2. Description of the Related Art Solid electrolyte fuel cells (hereinafter referred to as "SOF
(Abbreviated as “C”) generally uses a solid substance having oxygen ion conductivity as an electrolyte and is used at a high temperature of around 1000 ° C. Therefore, the materials used are limited,
A solid material is used not only for the electrolyte but also for each electrode, current collector, etc. For example, yttria (Y 2
O 3 ) -mixed zirconia (ZrO 2 ) (hereinafter abbreviated as YSZ), nickel and zirconia cermet for the fuel electrode, and LaSrMnO 3 or LaCoO 3 for perovskite crystal structure oxide conductivity for the oxidizer electrode. Material is used.
【０００３】このような材料のイオン電導性、電子電導
性は小さいので、電池を組み立てた際の内部抵抗を小さ
くするため各材料の薄膜化が行われている。特に、材料
の中では抵抗の大きい電解質については、薄膜化が必要
不可欠である。これと併せて、高温で動作させることで
電導性の向上を図っている。このように、ＳＯＦＣには
セラミックが使用されるが、これらは材料自体が脆いう
え、電池として所定の特性を得るために薄膜化して使用
される。従って、このような部材の組合わせによって構
成されるＳＯＦＣの電極部は非常に機械的強度が弱い。Since such materials have low ionic and electronic conductivities, thinning of each material has been carried out in order to reduce the internal resistance when the battery is assembled. In particular, thinning is essential for an electrolyte having a high resistance among the materials. At the same time, the electric conductivity is improved by operating at high temperature. As described above, although ceramics are used for SOFC, the materials themselves are fragile, and they are used in a thin film in order to obtain predetermined characteristics as a battery. Therefore, the electrode portion of the SOFC configured by combining such members has very weak mechanical strength.
【０００４】従来のＳＯＦＣの構造例としては、例えば
平板型と称されるものがある。図８はその構造を示す断
面図であって、１は、単位発電セルである。単位発電セ
ル１は、固体電解質２の薄膜，および該固体電解質２の
両側に位置する酸化剤極３，燃料電極４で構成された積
層膜８と、インタコネクタ５および該インタコネクタ５
の両側の酸化剤電極と同じ材質の膜６，燃料電極と同じ
材質の膜７で構成された積層膜９を積み重ねることによ
って構成されている。前記インタコネクタ５は、各単位
発電セル１を電気的に接続する部分である。このように
単位発電セル１が構成され、これが前記インタコネクタ
５を介して複数個直列に接続されてモジュール１０が組
み立てられている。なお、１１は燃料通路であり、１２
は酸化剤通路である。As an example of the structure of a conventional SOFC, there is one called a flat plate type. FIG. 8 is a sectional view showing the structure, and 1 is a unit power generation cell. The unit power generation cell 1 includes a thin film of a solid electrolyte 2, a laminated film 8 composed of an oxidizer electrode 3 and a fuel electrode 4 located on both sides of the solid electrolyte 2, an interconnector 5, and the interconnector 5.
It is constituted by stacking a laminated film 9 composed of a film 6 made of the same material as the oxidant electrode on both sides of the above and a film 7 made of the same material as the fuel electrode. The interconnector 5 is a portion that electrically connects the unit power generating cells 1. The unitary power generation cell 1 is configured in this manner, and a plurality of the unit power generation cells 1 are connected in series via the interconnector 5 to assemble the module 10. In addition, 11 is a fuel passage, and 12
Is the oxidant passage.
【０００５】燃料電池の出力は、単位発電セルあたり
０．７〜０．８Ｖなので、モジュールから所定の電圧を
得るためには、所定の数の単位発電セルを積層する必要
がある。平板型の単位発電セルの積層にあたっては、一
般的に、薄膜化された各材料を積み重ねた状態のままで
一括して焼成する方法が採られ、これによってモジュー
ルが作製されている。また、単位発電セル１を積層した
モジュールを構成するためには、燃料ガス、酸化剤ガス
の供給と排出のために、モジュールの側面に各発電セル
の流路１１，１２に連通する各ガスの供給と排出のため
の流路が必要であるが、平板型ＳＯＦＣでは、積層膜８
や９の端部においてこれらの流路の気密を確保した上で
ガスの給・排気口が取り付けなければならない。Since the output of the fuel cell is 0.7 to 0.8 V per unit power generation cell, it is necessary to stack a predetermined number of unit power generation cells in order to obtain a predetermined voltage from the module. In laminating the flat plate-type unit power generation cells, generally, a method of collectively firing the thinned materials in a stacked state is adopted, and a module is produced by this. Further, in order to form a module in which the unit power generation cells 1 are stacked, in order to supply and discharge the fuel gas and the oxidant gas, the gas of each gas communicating with the flow paths 11 and 12 of each power generation cell is provided on the side surface of the module. Although a flow path for supply and discharge is required, in the flat plate type SOFC, the laminated film 8
The gas supply / exhaust ports must be attached after ensuring the airtightness of these flow paths at the end portions of 9 and 9.
【０００６】また、図９の外観図に示す単位発電セル１
は、従来のＳＯＦＣのうち、円筒型と呼ばれるＳＯＦＣ
に用いられているものである。この従来例は、図のよう
に、多孔質チューブ１３の上に燃料電極４、固体電解質
２の薄膜、酸化剤極３、インタコネクタ５の順に各材料
を積層して単位発電セル１を構成するものである。この
ＳＯＦＣにおいては、燃料ガスと酸化剤ガス（空気）を
単位発電セル１の外と多孔質チューブ１３内を貫通する
酸化剤通路１２に流すことによって発電が行われる。通
常、このような単位発電セル１はインタコネクタ５によ
って電気的に接続されるように縦に積み重ねられて使用
される。Further, the unit power generation cell 1 shown in the external view of FIG.
Is a SOFC called a cylindrical type among conventional SOFCs.
Is used for. In this conventional example, as shown in the figure, a unitary power generation cell 1 is constructed by stacking each material of a fuel electrode 4, a thin film of a solid electrolyte 2, an oxidizer electrode 3, and an interconnector 5 on a porous tube 13 in this order. It is a thing. In this SOFC, power generation is performed by flowing a fuel gas and an oxidant gas (air) into an oxidant passage 12 that penetrates the unit power generation cell 1 and the porous tube 13. Usually, such unitary power generation cells 1 are vertically stacked and used so as to be electrically connected by the interconnector 5.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上記従
来の技術によるＳＯＦＣにおいては、以下のような問題
点があった。However, the SOFC according to the above conventional technique has the following problems.
【０００８】まず、図８の平板型ＳＯＦＣでは、積層に
あたっては、各単位発電セルの積み重ね面には曲がり等
が無く、精度良く仕上がっている必要があるが、焼結に
よってこのような形状的特性を得ることは難しい。一
方、先に述べたように、固体電解質２は、抵抗を減少さ
せるために薄膜化されているため、積層膜８の機械的強
度は弱い。従って、この様な積層膜８や９を多数積み重
ねようとしても、材料強度が不十分なために圧縮・剪断
に弱く、積み重ね枚数に制限が生じ、大きな出力電圧を
持ったモジュールを得ることが困難であった。また、一
般的に平板型のＳＯＦＣは、各材料を積み重ねた状態の
ままで一括焼成して構成する方法によって作製される
が、この時各材料の熱膨張率は必ずしも同一ではないの
で焼成中や焼成後にクラックが発生するなどの問題があ
り、作製そのものも非常に困難であった。さらに、単位
発電セル１を積層した発電モジュールを構成するために
は、燃料ガス、酸化剤ガスの供給と排出のために、モジ
ュールの側面に各ガスの供給と排出のための流路が必要
であるが、ＳＯＦＣでは酸化物固体が使用されているた
め、平板型では特に積層膜８や９の端部においてこれら
の流路の気密を確保した上でガスの給・排気口を取り付
けることは難しいという問題があった。First, in the flat plate type SOFC of FIG. 8, when stacking, there is no bending or the like on the stacking surface of each unit power generation cell, and it is necessary to finish it with high accuracy. Hard to get. On the other hand, as described above, since the solid electrolyte 2 is thinned to reduce the resistance, the laminated film 8 has low mechanical strength. Therefore, even if a large number of such laminated films 8 and 9 are stacked, the strength of the material is insufficient, so that they are weak against compression and shearing, the number of stacked layers is limited, and it is difficult to obtain a module having a large output voltage. Met. Further, generally, a flat plate type SOFC is manufactured by a method in which the respective materials are stacked and collectively fired, but the thermal expansion coefficients of the respective materials are not necessarily the same at this time, and There were problems such as cracks occurring after firing, and the production itself was extremely difficult. Furthermore, in order to configure a power generation module in which the unit power generation cells 1 are stacked, a flow path for supplying and discharging each gas is required on the side surface of the module for supplying and discharging the fuel gas and the oxidant gas. However, since solid oxides are used in SOFC, it is difficult to attach gas supply / exhaust ports after securing airtightness of these flow passages especially at the ends of the laminated films 8 and 9 in the flat plate type. There was a problem.
【０００９】また、図９の円筒型ＳＯＦＣでは、円筒型
の単位発電セルが縦に積み重ねられて使用されるため、
機械的強度の点では改善が図られる。しかし、例えば、
（１）発電電流が矢印Ｉのように電極面に沿って流れる
ため、電流の通路が長くなり、内部抵抗が大きくなるこ
と、また、（２）円筒型の構造で出力密度の向上を図る
には多孔質チューブの長さを増すことになるが、製造上
長さと管径の細さには限度があり、出力密度にも限界が
生じる。というような問題点があった。Further, in the cylindrical SOFC of FIG. 9, since the cylindrical unit power generation cells are vertically stacked and used,
The mechanical strength is improved. But for example,
(1) Since the generated current flows along the electrode surface as shown by arrow I, the current path becomes long and the internal resistance increases, and (2) the cylindrical structure is used to improve the output density. Will increase the length of the porous tube, but there is a limit to the length and the thinness of the tube diameter in terms of manufacturing, and there is a limit to the power density. There was such a problem.
【００１０】本発明は、上記問題点を解決するためにな
されたものであり、その目的は、平板型ＳＯＦＣが内在
している、多層積層が難しく大出力化が望めないという
ことや、円筒型ＳＯＦＣにおける、内部抵抗が大きくな
ることと、出力密度が小さいこと、等の問題点の解決を
図った中空薄板式固体電解質燃料電池を提供することに
ある。The present invention has been made to solve the above-mentioned problems, and its purpose is that a flat plate type SOFC is inherent, it is difficult to stack multiple layers, and a large output cannot be expected. It is an object of the present invention to provide a hollow thin plate type solid electrolyte fuel cell that solves the problems of SOFC such as increased internal resistance and low output density.
【００１１】[0011]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の中空薄板式固体電解質燃料電池において
は、酸化剤電極と燃料電極が電解質を介して配置され、
燃料ガスと酸化剤ガスを供給することで発電する固体電
解質燃料電池において、どちらか一方の電極材料によっ
て、板状で内部に一端からこれに相対する他端に向けて
貫通口を有する中空状の基体を形成し、該基体の片面に
電解質層を配置し、該電解質層の上面に他方の電極を形
成し、このような電解質と電極を設けた片面の反対側の
面にインタコネクタを形成することで発電セルを構成
し、該インタコネクタを介し前記発電セルを複数接触さ
せて積層することによって構成することを特徴としてい
る。In order to achieve the above object, in the hollow thin plate type solid electrolyte fuel cell of the present invention, an oxidant electrode and a fuel electrode are arranged via an electrolyte,
In a solid electrolyte fuel cell that generates electric power by supplying a fuel gas and an oxidant gas, one of the electrode materials is a plate-like hollow body having a through hole inside from one end to the other end opposite thereto. A substrate is formed, an electrolyte layer is arranged on one surface of the substrate, the other electrode is formed on the upper surface of the electrolyte layer, and an interconnector is formed on the surface opposite to the one surface provided with such electrolyte and electrode. Thus, a power generation cell is configured, and a plurality of power generation cells are brought into contact with each other through the interconnector to be laminated.
【００１２】[0012]
【作用】本発明の中空薄板式固体電解質型燃料電池で
は、発電セルの一方の電極を薄板状で貫通口を有する中
空筒状の基体とすることにより、発電セル自体の極板の
大形化を可能にして出力密度を高めるとともに、発電電
流が薄板状の電極を垂直に流れるようにして内部抵抗を
小さくする。また、発電セルを薄板状とすることによ
り、積層時に基体を発電セルの支持体として積層の際の
機械的強度を高め、発電セルの積層数を増加させてい
る。In the hollow thin plate type solid oxide fuel cell of the present invention, by making one electrode of the power generation cell a thin tubular hollow tubular substrate, the size of the electrode plate of the power generation cell itself is increased. It is possible to increase the output density and to make the generated current flow vertically through the thin plate electrode to reduce the internal resistance. Further, by forming the power generation cell into a thin plate shape, the base body is used as a support for the power generation cell at the time of stacking to enhance mechanical strength at the time of stacking, and the number of stacked power generation cells is increased.
【００１３】[0013]
【実施例】以下、本発明の実施例を、図面を参照して詳
細に説明する。図１，図２，図３，図４，図５（ａ），
（ｂ）は本発明の実施例における単位発電セルの構造例
を示す図である。図１，図２，図３，図４は本発明の単
位発電セルの外観を示し、図５（ａ）は図１，図２，図
４におけるＡ−Ａ′の断面を、図５（ｂ）は図３におけ
るＢ−Ｂ′の断面を表している。Embodiments of the present invention will now be described in detail with reference to the drawings. 1, FIG. 2, FIG. 3, FIG. 4, FIG.
(B) is a figure which shows the structural example of the unit electricity generation cell in the Example of this invention. 1, FIG. 2, FIG. 3 and FIG. 4 show the external appearance of the unit power generation cell of the present invention, and FIG. 5 (a) shows a cross section taken along the line AA 'in FIG. ) Indicates a cross section taken along the line BB 'in FIG.
【００１４】このうち図１，図２，図３における単位発
電セル２７の各構造例では、酸化剤電極材料によって、
薄板状で内部に一端からこれに相対する他端に向けて貫
通口１２を有する中空状の基体管２０を作製し、その酸
化剤電極基体管２０の片方の表面に固体電解質２１、燃
料電極２２の各層を順に形成している。そして、燃料電
極２２を設けた面の反対側の面にインタコネクタ２３を
設置している。酸化剤電極基体管２０の材料としては、
酸化剤電極に通常用いられるＬａＳｒＭｎＯ3やＬａＣ
ｏＯ3等が使用でき、この材料によって押出成形等によ
り作製される。固体電解質２１と燃料電極２２の各層
は、いずれも溶射法により薄膜として形成することがで
き、各材料としてはＹＳＺ、ニッケルとジルコニアをそ
れぞれ用いる。これら各層の厚みは、いずれも５０〜２
００μｍで形成する。Among these, in each structural example of the unit power generation cell 27 in FIGS. 1, 2 and 3, depending on the oxidizer electrode material,
A hollow substrate tube 20 having a thin plate shape and having a through hole 12 from one end to the other end opposite thereto is produced, and a solid electrolyte 21 and a fuel electrode 22 are formed on one surface of the oxidizer electrode substrate tube 20. Layers are sequentially formed. Then, the interconnector 23 is installed on the surface opposite to the surface on which the fuel electrode 22 is provided. As a material of the oxidant electrode substrate tube 20,
LaSrMnO 3 and LaC usually used for oxidant electrode
oO 3 or the like can be used, and this material is produced by extrusion molding or the like. Each layer of the solid electrolyte 21 and the fuel electrode 22 can be formed as a thin film by a thermal spraying method, and YSZ, nickel and zirconia are used as each material. The thickness of each of these layers is 50 to 2
It is formed with a thickness of 00 μm.
【００１５】なお、本実施例では、固体電解質２１を形
成した面の反対側にインタコネクタ２３を設けるが、こ
の層の形成にあたっても溶射によって、Ｎｉ−Ａｌ2Ｏ3
やＬａＣｒＯ3等の還元雰囲気下で安定な物質の層を形
成するだけで良い。また、固体電解質２１の層とインタ
コネクタ２３が設けられた部分以外については、ガスの
透過を防止する必要があるので、Ａｌ2Ｏ3等からなるガ
ス不透過性被膜２４で覆う。また、各層の形成にあたっ
ては、溶射だけでは無く所定の薄膜性能（薄さ、緻密さ
等）が得られれば、ＣＶＤ法、テープキャスティング
法、スラリー塗布法等の適用が可能である。In the present embodiment, the interconnector 23 is provided on the side opposite to the surface on which the solid electrolyte 21 is formed, but Ni-Al 2 O 3 is also formed by thermal spraying when forming this layer.
It suffices to form a layer of a stable substance in a reducing atmosphere such as or LaCrO 3 . In addition, since it is necessary to prevent the permeation of gas except for the portion where the layer of the solid electrolyte 21 and the interconnector 23 are provided, it is covered with the gas impermeable coating 24 made of Al 2 O 3 or the like. Further, in forming each layer, a CVD method, a tape casting method, a slurry coating method or the like can be applied if not only thermal spraying but also a predetermined thin film performance (thinness, denseness, etc.) can be obtained.
【００１６】図１，図２，図３の構造例の違いは、固体
電解質２１または燃料電極２２の配置の差異による。ま
ず、図１の単位発電セル２７の第１の構造例では、固体
電解質２１およびその上面に形成される燃料電極２２
は、共に酸化剤電極基体管２０の貫通口１２の方向と交
叉する方向に横長となる短冊形状として複数配列する。
次に、図２に示す単位発電セル２７の第２の構造例は、
上記第１の構造例において、固体電解質２１を連続的に
一つの層として形成し、その層上に第１の構造例と同一
形状の横長の燃料電極２２を複数配列・形成したもので
ある。さらに、図３の単位発電セル２７の第３の構造例
は、上記第２の構造例において酸化剤電極基体管２０の
片面に連続的に形成した固体電解質２１の層上に酸化剤
電極基体管２０の貫通口１２と同じ方向に縦長の短冊形
状の燃料電極２２を複数配列・形成したものである。こ
れらの構造例の場合、酸化剤電極基体管２０の貫通口１
２が酸化剤ガスの通路となり、燃料電極２２の周囲がモ
ジュールに組み立てられた際に燃料ガスの通路となる。The difference between the structural examples of FIGS. 1, 2 and 3 is due to the difference in the arrangement of the solid electrolyte 21 or the fuel electrode 22. First, in the first structural example of the unit power generation cell 27 of FIG. 1, in the solid electrolyte 21 and the fuel electrode 22 formed on the upper surface thereof.
Are arranged in a strip shape that is horizontally long in a direction intersecting the direction of the through hole 12 of the oxidant electrode substrate tube 20.
Next, a second structural example of the unit power generation cell 27 shown in FIG.
In the first structural example, the solid electrolyte 21 is continuously formed as one layer, and a plurality of horizontally elongated fuel electrodes 22 having the same shape as the first structural example are arranged and formed on the layer. Further, the third structural example of the unit power generation cell 27 of FIG. 3 is the oxidant electrode base tube formed on the layer of the solid electrolyte 21 continuously formed on one surface of the oxidant electrode base tube 20 in the second structural example. A plurality of vertically elongated strip-shaped fuel electrodes 22 are arranged and formed in the same direction as the through holes 12 of 20. In the case of these structural examples, the through-hole 1 of the oxidant electrode substrate tube 20
2 serves as a passage for the oxidant gas, and the periphery of the fuel electrode 22 serves as a passage for the fuel gas when assembled into a module.
【００１７】なお、本発明では基体管を酸化剤電極材料
だけでは無く、燃料電極材料によっても製造することを
可能としている。図４は、燃料電極を基体に使用した発
電セルの第４の構造例の外観を示す。本構造例は、図１
に示す第１の構造例の発電セルにおいて電極層を置き換
えたものであって、２５は燃料電極基体管、２１は固体
電解質、２３はインタコネクタ、２４はガス不透過性被
膜、２６は酸化剤電極である。In the present invention, the base pipe can be manufactured not only by the oxidizer electrode material but also by the fuel electrode material. FIG. 4 shows an appearance of a fourth structure example of a power generation cell using a fuel electrode as a base. This structural example is shown in FIG.
In the power generation cell of the first structural example shown in FIG. 2, the electrode layer is replaced, 25 is a fuel electrode substrate tube, 21 is a solid electrolyte, 23 is an interconnector, 24 is a gas impermeable coating, and 26 is an oxidizer. It is an electrode.
【００１８】この第４の構造例では、基体管の材料とし
て燃料電極材料のニッケルとジルコニアの混合物を使用
する。そして、この燃料電極材料で作製された燃料電極
基体管２５の片方の表面に固体電解質２１の層を形成
し、さらにこの固体電解質２１上に重ねて酸化剤電極２
６の層を形成する。これら２層の形成にあたっても先に
述べたような、ＣＶＤ法、テープキャスティング法、ス
ラリー塗布法、溶射法等が適用できる。その他、インタ
コネクタ２３や不透過性被膜２４の形成については、第
１〜第３の構造例の単位発電セルの作製と同様である。
なお、１１は燃料電極基体管２５の貫通口であり、燃料
ガス通路である。また図例では、固体電解質２１および
酸化剤電極２６の配置を第１の構造例の固体電解質と燃
料電極の配置と同様にしているが、第２および第３の構
造例の配置と同様にしても良い。In the fourth structural example, a mixture of nickel and zirconia, which is a fuel electrode material, is used as the material of the substrate tube. Then, a layer of the solid electrolyte 21 is formed on one surface of the fuel electrode substrate tube 25 made of this fuel electrode material, and the solid electrolyte 21 is further laminated on the solid electrolyte 21 to form the oxidizer electrode 2 thereon.
6 layers are formed. In forming these two layers, the CVD method, tape casting method, slurry coating method, thermal spraying method and the like as described above can be applied. In addition, the formation of the interconnector 23 and the impermeable coating 24 is the same as the production of the unit power generation cells of the first to third structural examples.
Reference numeral 11 denotes a through hole of the fuel electrode substrate tube 25, which is a fuel gas passage. Further, in the illustrated example, the arrangement of the solid electrolyte 21 and the oxidant electrode 26 is the same as the arrangement of the solid electrolyte and the fuel electrode of the first structural example, but it is the same as the arrangement of the second and third structural examples. Is also good.
【００１９】本発明では次に、このように作製した単位
発電セル２７を組み合わせて所定の出力を持った発電モ
ジュールを構成する。図６は、本発明における発電モジ
ュールの組み立て例である。この図は、酸化剤電極材料
で作製した酸化剤電極基体管２０を使用した単位発電セ
ルを積層して構成した例である。図において、２７は基
体管２０，固体電解質２１，燃料電極２２，インタコネ
クタ２３から成る単位発電セル、３０は固定板、３０−
１は溝、３１は分離板、３１−１は分離板に設けた貫通
口、３２は外容器、３３は酸化剤ガス供給口、３４は燃
料ガス供給口、３５は前室、３６は燃焼室、３７はガス
排出口、３８は導電性スペーサ、３９は導線、４０はシ
ール剤である。モジュールの構成にあたっては、単位発
電セル２７を固定板３０に載せた後、分離板３１を貫通
させ、この様な状態で外容器３２の内部に収納してい
る。固定板３０には単位発電セル２７の取付用に溝３０
−１が設けられており、単位発電セル２７はこの溝に嵌
合され、その嵌合部にはガスの気密性を確保するため、
ホウケイ酸ガラス等の非導電性ガラス融体からなるシー
ル材４０が満たされる。In the present invention, next, the unitary power generation cells 27 manufactured as described above are combined to form a power generation module having a predetermined output. FIG. 6 is an assembly example of the power generation module in the present invention. This figure is an example in which unit power generation cells using the oxidant electrode substrate tube 20 made of an oxidant electrode material are laminated and configured. In the figure, 27 is a unitary power generation cell including a base tube 20, a solid electrolyte 21, a fuel electrode 22, and an interconnector 23, 30 is a fixing plate, and 30-
1 is a groove, 31 is a separation plate, 31-1 is a through hole provided in the separation plate, 32 is an outer container, 33 is an oxidant gas supply port, 34 is a fuel gas supply port, 35 is a front chamber, 36 is a combustion chamber. , 37 is a gas outlet, 38 is a conductive spacer, 39 is a conductive wire, and 40 is a sealant. In constructing the module, the unitary power generation cell 27 is placed on the fixed plate 30, the separation plate 31 is penetrated, and the unit power generation cell 27 is housed inside the outer container 32 in such a state. The fixing plate 30 has a groove 30 for mounting the unitary power generation cell 27.
-1 is provided, the unit power generation cell 27 is fitted in this groove, and the fitting portion thereof secures gas tightness.
A sealing material 40 made of a non-conductive glass melt such as borosilicate glass is filled.
【００２０】一方、単位発電セル２７が分離板３１を貫
通する部分の構造は、単位発電セル２７の上端の水平方
向の位置を固定するとともに、貫通口３１−１により燃
料ガスの排出が行えるようになっている。固定板３０へ
の単位発電セル２７の取付け部分、および分離板３１と
単位発電セル２７の貫通部分の詳細図は図７に示す通り
である。未反応の燃料や反応生成物である水蒸気は、分
離板３１に設けられた貫通口３１−１の隙間から燃焼室
３６に導かれる。このような形状とすることによって、
熱膨張により単位発電セル２７の寸法変化が生じても、
固定板３０部における気密性を確保しておくことがで
き、一方、未反応燃料や反応生成物は反応部から燃焼室
３６に排出させることができる。また、図６に示すよう
に、単位発電セル２７はニッケルフェルト等の導電性ス
ペーサ３８を介して組み立てられ、この状態で各セルの
面同士が接触するので各単位発電セル２７は電気的に直
列接続することができる。On the other hand, the structure of the portion where the unit power generating cell 27 penetrates the separation plate 31 is such that the horizontal position of the upper end of the unit power generating cell 27 is fixed and the fuel gas can be discharged through the through hole 31-1. It has become. A detailed view of the mounting portion of the unit power generation cell 27 to the fixed plate 30 and the penetrating portion of the separation plate 31 and the unit power generation cell 27 is as shown in FIG. 7. Unreacted fuel and water vapor, which is a reaction product, are introduced into the combustion chamber 36 through the gap between the through holes 31-1 provided in the separation plate 31. By having such a shape,
Even if the dimensional change of the unit power generation cell 27 occurs due to thermal expansion,
The airtightness of the fixed plate 30 can be ensured, while unreacted fuel and reaction products can be discharged from the reaction section to the combustion chamber 36. Further, as shown in FIG. 6, the unit power generating cells 27 are assembled via a conductive spacer 38 such as nickel felt, and the surfaces of the cells are in contact with each other in this state, so that the unit power generating cells 27 are electrically connected in series. Can be connected.
【００２１】本発明のＳＯＦＣの動作にあたっては、従
来のＳＯＦＣと同様、上記発電ブロックを１０００℃等
の温度条件下に設置し、各ガスを供給するだけである。
酸化剤ガスは、外容器３２の下部に設けられた酸化剤ガ
ス供給口３３から供給され、各単位発電セル２７の内部
の貫通口１２を通過しながら反応し、その後の残ガスが
燃焼室３６に達する。従って、基体管２０のうち固体電
解質２１の層の下部に位置した部分が酸化剤電極として
作用する。一方、燃料ガスは外容器３２の側面に設けら
れた燃料ガス供給口３４から、内部に供給されて反応す
る。図では、燃料ガス供給口３４が外容器３２の左側面
に表示されているが、ガスと燃料極との接触を向上させ
る観点から紙面の表側（または裏側）の位置に設けるこ
とも可能である。供給された燃料ガスは各単位発電セル
２７間の隙間に流入して反応することになるが、各単位
発電セル２７間には多孔性の導電性スペーサ３８が設け
られているので、燃料ガスの燃料電極２２への拡散は支
障無く行われる。ここで、反応で消費されなかったガス
は燃焼室３６に導かれて、やはり反応で残った酸化剤ガ
スと混合し燃焼する。そして、このような燃焼後の高温
ガスは、ガス排出口３７から外部に排出される。In the operation of the SOFC of the present invention, like the conventional SOFC, the above-mentioned power generation block is installed under a temperature condition such as 1000 ° C. and each gas is supplied.
The oxidant gas is supplied from the oxidant gas supply port 33 provided in the lower portion of the outer container 32, reacts while passing through the through hole 12 inside each unit power generation cell 27, and the residual gas after that reacts with the combustion chamber 36. Reach Therefore, the portion of the base tube 20 located below the layer of the solid electrolyte 21 acts as an oxidant electrode. On the other hand, the fuel gas is supplied to the inside from the fuel gas supply port 34 provided on the side surface of the outer container 32 and reacts therewith. In the figure, the fuel gas supply port 34 is shown on the left side surface of the outer container 32, but it may be provided on the front side (or back side) of the paper from the viewpoint of improving the contact between the gas and the fuel electrode. .. The supplied fuel gas flows into the gaps between the unit power generation cells 27 and reacts therewith, but since the porous conductive spacers 38 are provided between the unit power generation cells 27, the fuel gas The diffusion to the fuel electrode 22 is performed without any trouble. Here, the gas not consumed in the reaction is guided to the combustion chamber 36, and is mixed with the oxidant gas remaining in the reaction and burned. Then, the high temperature gas after such combustion is discharged to the outside from the gas discharge port 37.
【００２２】一方、図４に示した燃料電極材料を基体に
使用した単位発電セルを用いた場合にも、上述の組み立
て法が適用できるが、この場合、単位発電セルの外側は
酸化雰囲気なのでインタコネクタとしては、酸化雰囲気
下で安定なＬａＣｒＯ3を用いる。この点が酸化剤電極
を基体に用いた単位発電セルと大きく異なる点であり、
その他の層の薄膜形成法については酸化剤電極を基体に
用いた単位発電セルの例と同様である。なお、本単位発
電セルを使った場合、図６のモジュールの組み立てに使
用する導電性スペーサ３８としては酸化雰囲気下で安定
な物質が必要であるので、この場合ＬａＣｒＯ3を繊維
状にして作製した不織布や白金メッシュ、さらには炭素
繊維から作製する不織布等を用いる。On the other hand, the above-mentioned assembly method can be applied to the case of using the unit power generation cell using the fuel electrode material shown in FIG. 4 as the substrate. LaCrO 3 that is stable in an oxidizing atmosphere is used as the connector. This point is a point greatly different from the unit power generation cell using the oxidizer electrode as the base,
The thin film forming method for the other layers is the same as the example of the unit power generation cell using the oxidant electrode as the substrate. When this unit power generation cell is used, a material that is stable in an oxidizing atmosphere is required as the conductive spacer 38 used for assembling the module of FIG. 6, so in this case, LaCrO 3 was made into a fibrous shape. A non-woven fabric, a platinum mesh, or a non-woven fabric made of carbon fiber is used.
【００２３】先に述べたように、ＳＯＦＣは１０００℃
前後の温度で使用されるため、セルと外容器の壁等の各
部の材料は比較的大きな熱膨張を起こす。このような使
用状態で発電部の気密を確保するためには、各部分を強
固に固定し発電部全体が一体となるような構造にする必
要があるが、このためには、各部分の熱膨張率差を限り
なく一致させる必要があった。しかし、本実施例では、
中空状の基体管２０で発電セル２７を作製し、これを外
容器内に収容した固定板３０と分離板３１によって組み
立てる構造としている。各単位発電セル２７は固定板３
０によって支えられただけの状態にあり、またその固定
部も非導電性のガラス融体でシールされているだけであ
る。このガラス融体は、１０００℃という高温では軟化
状態にあり、また、各単位発電セル間には柔軟性のある
導電性スペーサ３８が配置されている。従って、熱膨張
による寸法変化を受容し易く、発電部内に温度分布が生
じ各セルに熱膨張差が発生してもこのような影響による
発電セルの破壊を有効に防ぐことができる。As mentioned above, SOFC has a temperature of 1000.degree.
Since it is used at temperatures around, the material of each part such as the cell and the wall of the outer container undergoes a relatively large thermal expansion. In order to ensure the airtightness of the power generation section under such usage conditions, it is necessary to firmly fix each part and make the structure so that the entire power generation section is integrated. It was necessary to match the difference in expansion coefficient to the limit. However, in this embodiment,
The power generation cell 27 is manufactured from the hollow base tube 20, and is assembled by the fixed plate 30 and the separation plate 31 housed in the outer container. Each unit power generation cell 27 has a fixed plate 3
It is only supported by 0, and its fixing portion is also sealed with a non-conductive glass melt. This glass melt is in a softened state at a high temperature of 1000 ° C., and a flexible conductive spacer 38 is arranged between each unit power generation cell. Therefore, dimensional changes due to thermal expansion can be easily accepted, and even if a temperature distribution occurs in the power generation unit and a difference in thermal expansion occurs in each cell, destruction of the power generation cell due to such an influence can be effectively prevented.
【００２４】以上述べたように本実施例においては、基
体管２０（または２５、以下同じ）が発電セル２７全体
の支持板として働いて、機械的強度を高くすることがで
きるので、多数の単位発電セル２７を積層しても高い機
械的強度を有することができる。また、発電電流は薄板
状の基体管２０を垂直に流れるので従来の円筒型のＳＯ
ＦＣにみられるような電流の横流れを防止することがで
き、内部抵抗を小さくすることができる。さらに基体管
２０の形状が薄板状であるため、従来の円筒型の基体管
に比べて極板の寸法を大きくすることができ、出力密度
を高めることができる。As described above, in the present embodiment, the base tube 20 (or 25, the same applies hereinafter) acts as a support plate for the entire power generation cell 27, and the mechanical strength can be increased. Even if the power generation cells 27 are stacked, high mechanical strength can be obtained. In addition, since the generated current flows vertically through the thin plate-shaped base pipe 20, the conventional cylindrical SO
It is possible to prevent the lateral flow of current as seen in FC and reduce the internal resistance. Further, since the base tube 20 has a thin plate shape, the size of the electrode plate can be increased and the output density can be increased as compared with the conventional cylindrical base tube.
【００２５】これらのことにより、積層して作製した電
極を多数積み重ねてモジュールを形成する従来の平板型
ＳＯＦＣの問題点、即ち、（１）積層構造の電極は材料
強度が不十分なために圧縮・剪断に弱く、積み重ね枚数
に制限が生じ大きな出力電圧を持ったモジュールを得る
ことが困難であること。（２）一般的に、平板型ＳＯＦ
Ｃは各材料を積み重ねた状態のまま一括して焼成する方
法によって作製されるが、この時各材料の線膨張率は必
ずしも同一ではないので焼成後にクラックが発生するな
どの問題があり、作製そのものも非常に困難であったこ
と。および、多孔質チューブ上に固体電解質薄膜、各電
極等を積層した円筒型ＳＯＦＣの問題点、即ち、（１）
発電電流が電極面に沿って流れて電流の通路が長くなる
ため、内部抵抗が大きくなること。（２）製造上チュー
ブの長さと細さには限度があり、出力密度にも限界が生
じること。といった従来のＳＯＦＣが内在していた種々
の問題点を一気に解決することが出来る。As a result, the problems of the conventional flat plate type SOFC in which a large number of laminated electrodes are stacked to form a module, namely, (1) the electrode of the laminated structure is compressed due to insufficient material strength. -It is difficult to obtain a module with a large output voltage because it is weak against shearing and the number of stacks is limited. (2) Generally, flat plate type SOF
C is manufactured by a method in which the materials are stacked and fired together, but the linear expansion coefficient of each material is not always the same at this time, so there is a problem such as cracks occurring after firing. That was also very difficult. And the problems of the cylindrical SOFC in which the solid electrolyte thin film, each electrode, etc. are laminated on the porous tube, that is, (1)
The internal resistance increases because the generated current flows along the electrode surface and the current path lengthens. (2) The length and the thinness of the tube are limited due to manufacturing, and the output density is also limited. It is possible to solve various problems inherent in the conventional SOFC, such as.
【００２６】なお、本発明では、発電セルとしては中空
状であれば良く特に外形や中空部の形状や大きさ等を限
定するものではない。同様に、固定板、分離板、外容器
の形状等に関しても何ら制限を加えるものではない。ま
た、各電極、固体電解質等の材料に関しても、本発明で
は限定するものでは無く、基本的に従来の平板型ＳＯＦ
Ｃで使用されている材料が適用可能である。また、基体
管は押出成形で作製するだけでなく、テープ成形で作製
したグリーンシートやプレス成形で作製した薄板の組み
合わせによっても得ることができる。なお、ガスの供給
方法に関しても特に制限するものでは無い。このように
本発明は、その主旨に沿って種々に応用され、種々の実
施態様を取り得るものである。In the present invention, it is sufficient that the power generating cell is hollow, and the outer shape and the shape and size of the hollow portion are not particularly limited. Similarly, the shape of the fixing plate, the separating plate, the outer container, and the like are not limited at all. Further, the material of each electrode, solid electrolyte, etc. is not limited in the present invention, and basically the conventional flat plate type SOF is used.
The materials used in C are applicable. Further, the base pipe can be obtained not only by extrusion molding but also by combining a green sheet produced by tape molding or a thin plate produced by press molding. The method of supplying gas is not particularly limited. As described above, the present invention can be applied in various ways in accordance with the gist thereof and can take various embodiments.
【００２７】[0027]
【発明の効果】以上の説明で明らかなように、本発明の
中空薄板式固体電解質燃料電池では、発電セルの一方の
電極を薄板状で貫通口を有する中空筒状の基体とするこ
とにより、寸法の大きな極板の作製が容易になり、出力
密度を高め、大出力化が可能になる。また、発電電流が
薄板状の電極を垂直に流れるので電流の横流れがなくな
り、内部抵抗を小さくすることができる。また、発電セ
ルを薄板状とすることにより、積層時に基体が発電セル
の支持体となって積層の際の機械的強度を高め、発電セ
ルの積層数を増加することができる。As is apparent from the above description, in the hollow thin plate type solid electrolyte fuel cell of the present invention, one electrode of the power generation cell is a thin plate-shaped hollow cylindrical substrate having a through-hole. It is possible to easily manufacture an electrode plate having a large size, increase the output density, and increase the output. In addition, since the generated current flows vertically through the thin plate-shaped electrode, there is no cross current flow, and the internal resistance can be reduced. Further, by forming the power generation cell into a thin plate shape, the base body serves as a support for the power generation cell during stacking, the mechanical strength during stacking is increased, and the number of stacked power generation cells can be increased.
【００２８】これにより、本発明は、平板型ＳＯＦＣが
持つ欠点、即ち、極板の機械的強度が弱く積層枚数に制
限が生ずるばかりか、寸法の大きな極板の作製も困難で
ありＳＯＦＣそのものの大出力化が出来なかったという
欠点、および、円筒型ＳＯＦＣの持つ欠点、即ち、内部
抵抗が大きいことと、出力密度にも限界があると言う欠
点を解消し、大形ＳＯＦＣを容易に実現することができ
る。As a result, according to the present invention, the drawback of the flat plate type SOFC, that is, the mechanical strength of the electrode plates is weak and the number of laminated plates is limited, and it is difficult to manufacture a large electrode plate, the SOFC itself has It is possible to easily realize a large SOFC by eliminating the drawbacks that it was not possible to increase the output and the drawbacks of the cylindrical SOFC, that is, the large internal resistance and the limited output density. be able to.
【図１】本発明の実施例を構成する単位発電セルの第１
の構造例を示す外観図FIG. 1 is a first unit power generation cell constituting an embodiment of the present invention.
External view showing an example structure
【図２】上記実施例を構成する単位発電セルの第２の構
造例を示す外観図FIG. 2 is an external view showing a second structural example of a unit power generation cell that constitutes the above embodiment.
【図３】上記実施例を構成する単位発電セルの第３の構
造例を示す外観図FIG. 3 is an external view showing a third structural example of a unit power generation cell that constitutes the above embodiment.
【図４】上記実施例を構成する単位発電セルの第４の構
造例を示す図FIG. 4 is a diagram showing a fourth structural example of a unit power generation cell that constitutes the above embodiment.
【図５】（ａ），（ｂ）は上記単位発電セルの構造例に
おける断面図5A and 5B are cross-sectional views of a structural example of the unit power generation cell.
【図６】上記実施例のモジュールの組み立て例を示す断
面図FIG. 6 is a cross-sectional view showing an example of assembly of the module of the above embodiment.
【図７】（ａ），（ｂ）は上記実施例における単位発電
セルの取り付け部分の詳細図7 (a) and 7 (b) are detailed views of a mounting portion of a unit power generation cell in the above embodiment.
【図８】従来の平板型ＳＯＦＣの構造を示す断面図FIG. 8 is a sectional view showing the structure of a conventional flat plate SOFC.
【図９】従来のＳＯＦＣを構成する円筒型の単位発電セ
ルの外観図FIG. 9 is an external view of a cylindrical unit power generation cell that constitutes a conventional SOFC.
１２…貫通口、２０…酸化剤電極基体管、２１…固体電
解質、２２…燃料電極、２３…インタコネクタ、２４…
ガス不透過性被膜、２５…燃料電極基体管、２６…酸化
剤電極、２７…単位発電セル、３０…固定板、３０−１
…溝、３１…分離板、３１−１…貫通口、３２…外容
器、３３…酸化剤ガス供給口、３４…燃料ガス供給口、
３５…前室、３６…燃焼室、３７…ガス排出口、３８…
導電性スペーサ、３９…導線、４０…シール剤。12 ... Through-hole, 20 ... Oxidizer electrode base tube, 21 ... Solid electrolyte, 22 ... Fuel electrode, 23 ... Interconnector, 24 ...
Gas impermeable coating, 25 ... Fuel electrode substrate tube, 26 ... Oxidizer electrode, 27 ... Unit power generation cell, 30 ... Fixing plate, 30-1
... groove, 31 ... separation plate, 31-1 ... through hole, 32 ... outer container, 33 ... oxidant gas supply port, 34 ... fuel gas supply port,
35 ... front chamber, 36 ... combustion chamber, 37 ... gas exhaust port, 38 ...
Conductive spacer, 39 ... Conductive wire, 40 ... Sealing agent.
Claims (1)
配置され、燃料ガスと酸化剤ガスを供給することで発電
する固体電解質燃料電池において、どちらか一方の電極
材料によって、板状で内部に一端からこれに相対する他
端に向けて貫通口を有する中空状の基体を形成し、該基
体の片面に電解質層を配置し、該電解質層の上面に他方
の電極を形成し、このような電解質と電極を設けた片面
の反対側の面にインタコネクタを形成することで発電セ
ルを構成し、該インタコネクタを介し前記発電セルを複
数接触させて積層することによって構成することを特徴
とする中空薄板式固体電解質燃料電池。Claim: What is claimed is: 1. A solid electrolyte fuel cell in which an oxidant electrode and a fuel electrode are arranged via an electrolyte, and a fuel gas and an oxidant gas are supplied to generate electric power. To form a plate-shaped hollow substrate having a through hole from one end to the other end opposite thereto, and disposing an electrolyte layer on one surface of the substrate, and the other electrode on the upper surface of the electrolyte layer. To form a power generating cell by forming an interconnector on the surface opposite to the one surface on which such an electrolyte and an electrode are provided, and by stacking a plurality of the power generating cells in contact with each other through the interconnector. A hollow thin plate type solid electrolyte fuel cell, characterized in that it is configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03211747A JP3102809B2 (en) | 1991-05-20 | 1991-08-23 | Hollow thin plate solid electrolyte fuel cell |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3-114261 | 1991-05-20 | ||
| JP11426191 | 1991-05-20 | ||
| JP03211747A JP3102809B2 (en) | 1991-05-20 | 1991-08-23 | Hollow thin plate solid electrolyte fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0536417A true JPH0536417A (en) | 1993-02-12 |
| JP3102809B2 JP3102809B2 (en) | 2000-10-23 |
Family
ID=26453053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03211747A Expired - Lifetime JP3102809B2 (en) | 1991-05-20 | 1991-08-23 | Hollow thin plate solid electrolyte fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3102809B2 (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996008052A1 (en) * | 1994-09-03 | 1996-03-14 | Forschungszentrum Jülich GmbH | Solid electrolyte, high temperature fuel cell arrangement |
| JP2002539587A (en) * | 1999-03-06 | 2002-11-19 | フラウンホファー ゲセルシャフトツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． | Manufacture of tubular fuel cells, fuel cell modules, basic elements and ion exchange membranes |
| EP1261059A2 (en) | 2001-05-22 | 2002-11-27 | Nissan Motor Co., Ltd. | Cell plate structure for fuel cell, manufacturing method thereof and solid electrolyte type fuel cell |
| JP2004537143A (en) * | 2001-07-24 | 2004-12-09 | ロールス・ロイス・ピーエルシー | Solid oxide fuel cell stack |
| JP2005093081A (en) * | 2003-09-12 | 2005-04-07 | Kyocera Corp | Power generation unit and fuel cell assembly equipped with the same |
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| US7122268B2 (en) | 2001-04-23 | 2006-10-17 | Nissan Motor Co., Ltd. | Solid oxide electrolyte fuel cell plate structure, stack and electrical power generation unit |
| JP2007500119A (en) * | 2003-07-26 | 2007-01-11 | ロールス−ロイス・フューエル・セル・システムズ・リミテッド | Reformer module |
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| EP1796192A1 (en) * | 2005-12-08 | 2007-06-13 | Postech Foundation | Solid oxide fuel cell module, fuel cell system using the same and manufacturing method thereof |
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| WO2009096624A1 (en) * | 2008-01-31 | 2009-08-06 | Postech Academy-Industry Foundation | Electrode supports and monolith type unit cells for solid oxide fuel cells and their manufacturing methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05153817A (en) * | 1991-12-05 | 1993-06-22 | Kubota Corp | Rice transplanter |
-
1991
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996008052A1 (en) * | 1994-09-03 | 1996-03-14 | Forschungszentrum Jülich GmbH | Solid electrolyte, high temperature fuel cell arrangement |
| JP2002539587A (en) * | 1999-03-06 | 2002-11-19 | フラウンホファー ゲセルシャフトツール フェールデルンク ダー アンゲヴァンテン フォルシュンク エー．ファオ． | Manufacture of tubular fuel cells, fuel cell modules, basic elements and ion exchange membranes |
| US7122268B2 (en) | 2001-04-23 | 2006-10-17 | Nissan Motor Co., Ltd. | Solid oxide electrolyte fuel cell plate structure, stack and electrical power generation unit |
| US8323845B2 (en) | 2001-04-23 | 2012-12-04 | Nissan Motor Co., Ltd. | Solid oxide electrolyte fuel cell plate structure, stack and electrical power generation unit |
| US7045243B2 (en) | 2001-05-22 | 2006-05-16 | Nissan Motor Co., Ltd. | Cell plate structure for fuel cell, manufacturing method thereof and solid electrolyte type fuel cell |
| EP1261059A2 (en) | 2001-05-22 | 2002-11-27 | Nissan Motor Co., Ltd. | Cell plate structure for fuel cell, manufacturing method thereof and solid electrolyte type fuel cell |
| JP2004537143A (en) * | 2001-07-24 | 2004-12-09 | ロールス・ロイス・ピーエルシー | Solid oxide fuel cell stack |
| US7285348B2 (en) | 2003-02-28 | 2007-10-23 | Kyocera Corporation | Fuel cell |
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| JP2007500119A (en) * | 2003-07-26 | 2007-01-11 | ロールス−ロイス・フューエル・セル・システムズ・リミテッド | Reformer module |
| JP2005093081A (en) * | 2003-09-12 | 2005-04-07 | Kyocera Corp | Power generation unit and fuel cell assembly equipped with the same |
| JP2005100818A (en) * | 2003-09-25 | 2005-04-14 | Kyocera Corp | Fuel cell |
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| JP2007087696A (en) * | 2005-09-21 | 2007-04-05 | Kyocera Corp | Fuel battery cell, fuel battery cell stack, and fuel cell |
| JP2013122925A (en) * | 2005-11-08 | 2013-06-20 | Alan Devoe | Solid oxide fuel cell device comprising elongated substrate with hot portion and cold portion |
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| US7947386B2 (en) | 2005-12-08 | 2011-05-24 | Postech Foundation | Solid oxide fuel cell module, fuel cell system using the same and manufacturing method thereof |
| WO2007133260A1 (en) * | 2006-04-13 | 2007-11-22 | Siemens Power Generation, Inc. | High power density seal-less tubular solid oxide fuel cell by means of a wide interconnection |
| KR101006467B1 (en) * | 2008-01-31 | 2011-01-06 | 포항공과대학교 산학협력단 | Electrode Supports and Monolith Type Unit Cells for Solid Oxide Fuel Cells and Their Manufacturing Methods |
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