JP2816475B2 - Structure of solid oxide fuel cell - Google Patents
Structure of solid oxide fuel cellInfo
- Publication number
- JP2816475B2 JP2816475B2 JP1133396A JP13339689A JP2816475B2 JP 2816475 B2 JP2816475 B2 JP 2816475B2 JP 1133396 A JP1133396 A JP 1133396A JP 13339689 A JP13339689 A JP 13339689A JP 2816475 B2 JP2816475 B2 JP 2816475B2
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- internal current
- stack
- electrode
- fuel cell
- 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
-
- 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
- H01M8/243—Grouping of unit cells of tubular or cylindrical 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- 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
-
- 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
- H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Description
【発明の詳細な説明】 産業上の利用分野 この発明は複数の単電池を相互に並列に接続し、その
集合体を更に相互に直列に接続した燃料電池の構造に関
し、特に円筒状の固体電解質の内外面に酸素電極および
燃料電極を設けた単電池を主体とする燃料電池に関する
ものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fuel cell in which a plurality of cells are connected in parallel to each other and an assembly thereof is further connected in series to each other, and in particular, to a cylindrical solid electrolyte. The present invention relates to a fuel cell mainly comprising a unit cell provided with an oxygen electrode and a fuel electrode on the inner and outer surfaces of the fuel cell.
従来の技術 周知のように固体電解質燃料電池は、イットリア安定
化ジルコニア（YSZ）などの物質が、1000℃程度の高温
下で酸素イオン導電性を示すことを利用したものであ
り、その基本的な構造は、YSZなどの固体電解質を挟ん
で、ペロブスカイト型ランタン系複合酸化物などからな
る多孔構造の酸素電極と、ニッケルやニッケル合金ある
いはNi−ZrO2サーメットなどからなる多孔構造の燃料電
極とを設け、高温状態で酸素電極側に空気や酸素ガスな
どの酸素性ガスを流す一方、燃料電極側に水素ガスや一
酸化炭素ガスなどの燃料ガスを流すことによって固体電
解質を介した酸化・還元反応によって電力を得るもので
ある。2. Description of the Related Art As is well known, a solid oxide fuel cell utilizes the fact that a substance such as yttria-stabilized zirconia (YSZ) exhibits oxygen ion conductivity at a high temperature of about 1000 ° C. structure, sandwiching the solid electrolyte such as YSZ, provided an oxygen electrode of porous structure made of perovskite lanthanum composite oxide, and a fuel electrode of a porous structure made of nickel or a nickel alloy or Ni-ZrO 2 cermet By flowing an oxygen-containing gas such as air or oxygen gas to the oxygen electrode side at a high temperature, and flowing a fuel gas such as hydrogen gas or carbon monoxide gas to the fuel electrode side by the oxidation / reduction reaction through the solid electrolyte, Power.
この種の単電池によって得られる電圧は、高々1V程度
に過ぎないので、実用に供するためには多数の単電池を
直並列に接続する必要があり、そのため従来から単電池
を円筒型に形成し、これを直並列に接続する構造や、イ
ンターコネクタとなる導電板の間に多数の単電池を形成
してこれを多数積層する平板型などの種々の構造が開発
・検討されている。これらの構造のうち平板型は全体を
コンパクト化し易い利点があるものの、酸化性ガスと燃
料ガスとの混合を防ぐためのシールが困難であるなどの
問題に加え、構造の容易性に欠ける問題があり、したが
って円筒型のものが実用性に富んでいる。Since the voltage obtained by this type of cell is only about 1 V at most, it is necessary to connect many cells in series and parallel in order to put it to practical use. Various structures have been developed and studied, such as a structure in which the cells are connected in series and parallel, and a flat plate type in which a large number of cells are formed between conductive plates serving as interconnectors and a large number of cells are stacked. Among these structures, the flat plate type has the advantage that the whole can be easily made compact, but in addition to the problem that it is difficult to seal to prevent the mixing of the oxidizing gas and the fuel gas, there is a problem that the structure is not easy. Yes, so the cylindrical type is more practical.
円筒型の単電池を使用して必要な起電力を得る構造と
して、従来、単電池を縦横のマトリックス状に多数配列
し、例えば縦方向では各単電池を直列接続し、横方向に
は各単電池を並列接続する構造が知られている。しかし
ながらこのような構造では、いずれかの単電池に異常を
来たしてその単電池が起電力を生じなくなった場合、そ
の単電池を含む直列接続した単電池群の全体が機能しな
くなり、あるいはその単電池群での内部抵抗が著しく増
大して発電効率が低下する問題が生じる。このような問
題を解消することのできる構造を本出願人は既に提案し
ており、その基本的な構造は、導電性の内部集電子の外
周に多数の円筒型単電池を配置するとともに、各単電池
の内周側の電極をインターコネクタによって内部集電子
に導通させ、また内部集電子とほぼ同心状に設けた筒状
の外部集電子によって単電池の全体を包囲するとともに
各単電池の外周側の電極を外部集電子に導通させたもの
である。なお、複数の単電池をこのように接続した構造
体はスタックと称されている。Conventionally, as a structure for obtaining a required electromotive force by using a cylindrical cell, a number of cells are conventionally arranged in a matrix of length and width, for example, each cell is connected in series in the vertical direction, and each cell is connected in the horizontal direction. A structure for connecting batteries in parallel is known. However, in such a structure, when an abnormality occurs in any one of the cells and the cell no longer generates electromotive force, the entire series-connected cell group including the cell does not function or the cell does not function. There is a problem that the internal resistance in the battery group is significantly increased and the power generation efficiency is reduced. The present applicant has already proposed a structure capable of solving such a problem, and its basic structure is to dispose a large number of cylindrical cells on the outer periphery of a conductive internal current collector, The inner electrode of the unit cell is electrically connected to the internal current collector by an interconnector, and the outer periphery of each unit cell is surrounded by a cylindrical external current collector provided substantially concentrically with the internal current collector. Side electrode is electrically connected to an external current collector. A structure in which a plurality of unit cells are connected in this manner is called a stack.
発明が解決しようとする課題 上述したスタックは、更にその複数本を直並列に接続
して燃料電池として組立てられるが、その場合、各スタ
ックは内部集電子を一方の電極とし、かつ外部集電子を
他方の電極とした独立した発電要素と考えられるから、
これを直列に接続する構造としては、内部集電子が外部
集電子に包囲されている構造となっていることにより、
少なくとも内部集電子の一端部をその軸線方向に突出さ
せ、その突出部分から半径方向に延びた導電性接続具を
他のスタックの外周集電子の外面にニッケルフェルトな
どのクッション性のある導通材料を介在させて当接させ
る構造が考えられる。しかしながらこのような構造で
は、各スタックで生じた電流がその一端部に設けられて
いる接続具に集中して流れるので接続具での電流密度が
高くなり、その結果、その接続具の部分での損失が大き
くなり、また電流流路が長くなって燃料電池の全体とし
ての発電効率が低下するなどの問題がある。Problems to be Solved by the Invention The above-mentioned stack is further assembled as a fuel cell by connecting a plurality of the series in parallel, in which case, each stack uses an internal current collector as one electrode and an external current collector as an electrode. Since it is considered as an independent power generation element with the other electrode,
As a structure to connect them in series, the internal current collector is surrounded by the external current collector,
At least one end of the internal current collector is protruded in the axial direction, and a conductive connector extending radially from the protruding portion is provided with a conductive material having a cushioning property such as nickel felt on the outer surface of the outer current collector of another stack. A structure in which they are interposed and contacted is conceivable. However, in such a structure, the current generated in each stack flows intensively to the connector provided at one end thereof, so that the current density at the connector is increased, and as a result, the current at the portion of the connector is increased. There are problems such as a large loss and a long current flow path, which lowers the power generation efficiency of the fuel cell as a whole.
この発明は上記の事情を背景としてなされたもので、
スタックを接続することに伴う抵抗や損失を低減させて
高出力の燃料電池を提供することを目的とするものであ
る。The present invention has been made in view of the above circumstances,
It is an object of the present invention to provide a high-output fuel cell by reducing resistance and loss associated with connecting a stack.
課題を解決するための手段 この発明は、上記の目的を達成するために、酸素電極
と燃料電極とを筒状の固体電解質の内外周面に形成して
なる複数の単電池を、互いにほぼ同心状に配置した内部
集電子と筒状の外部集電子との間に、一方の電極を内部
集電子に導通させかつ他方の電極を外部集電子に導通さ
せた状態で配列するとともに、一側端が内部集電子に電
気的に接触しかつ他側端が外部集電子を絶縁状態で貫通
した導電板を内部集電子の外周でかついずれかの単電池
の間に配置してスタックが構成され、互いに隣接して配
置されたスタックがその導電板の他側端を他のスタック
の外部集電子の外面に電気的に接触させて接続されてい
ることを特徴とするものである。Means for Solving the Problems In order to achieve the above object, the present invention provides a plurality of unit cells each having an oxygen electrode and a fuel electrode formed on the inner and outer peripheral surfaces of a cylindrical solid electrolyte, which are substantially concentric with each other. Between the internal current collector and the cylindrical external current collector arranged in a state where one electrode is electrically connected to the internal current collector and the other electrode is electrically connected to the external current collector. A stack is constituted by electrically contacting the internal current collector and arranging a conductive plate whose other end penetrates the external current collector in an insulated state on the outer periphery of the internal current collector and between any of the cells, The stacks arranged adjacent to each other are connected by electrically contacting the other end of the conductive plate to the outer surface of the external current collector of another stack.
作用 この発明に係る構造の燃料電池においても各単電池の
固体電解質を挟んだ両側に酸化性ガスと燃料ガスとを流
すことにより起電力が生じる。それら複数の単電池は、
内部集電子と外部集電子とによって互いに並列に接続さ
れてスタックを構成しており、そのスタックは内部集電
子と電気的に一体化されかついずれかの単電池同士の間
を通って外部集電子の外面側に延出した導電板を、隣接
する他のスタックの外面に電気的に接触させることによ
り直列に接続され、一方のスタックで生じた電流はその
導電板を介して他のスタックに送られる。そしてその導
電板は内部集電子のほぼ全長に亘って設けられるから、
その断面積が広くなって電流密度が低くなり、またスタ
ック同士間の電流流路が短くなり、その結果、内部抵抗
の増大要因や損失の増大要因が少なくなるので高出力の
燃料電池とされる。Effect In the fuel cell having the structure according to the present invention, an electromotive force is generated by flowing the oxidizing gas and the fuel gas on both sides of the solid electrolyte of each unit cell with the solid electrolyte interposed therebetween. These multiple cells are
The internal current collector and the external current collector are connected in parallel to each other to form a stack, and the stack is electrically integrated with the internal current collector and passes between any of the cells to form an external current collector. Are connected in series by making electrical contact with the outer surface of another adjacent stack, and the current generated in one stack is transmitted to the other stack via the conductive plate. Can be And since the conductive plate is provided over almost the entire length of the internal current collector,
The cross-sectional area is widened, the current density is low, and the current flow path between the stacks is short. As a result, the factor for increasing the internal resistance and the factor for increasing the loss are reduced, so that a high-output fuel cell is obtained. .
実 施 例 つぎにこの発明の実施例を図面を参照して説明する。Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.
第１図はこの発明に係る燃料電池の一部を模式的に示
す破断斜視図であって、複数本（図では５本）の単電池
１を１つのスタック２とし、これを直列に接続したもの
である。すなわち各単電池１は所謂円筒型のものであっ
て、その一例を第２図に模式的に示してあり、アルミナ
（Al2O3）などで多孔構造に形成したセラミック製支持
管３の外周に、ペロブスカイト型ランタン系複合酸化物
などを素材とした酸素電極４で形成されるとともに、そ
の外面の一部に、ニッケル合金などを素材としたインタ
ーコネクタ５が突設されており、さらにその酸素電極４
の外周に、イットリア安定化ジルコニア（YSZ）などを
素材とした固体電解質６が形成されている。さらにニッ
ケル合金やニッケルとジルコニアとのサーメットなどを
素材とした燃料電極７が前記インターコネクタ５に非導
通状態となるよう固体電解質６の外周に形成されてい
る。したがって単電池１は、その内周側に空気などの酸
化性ガスを流す一方、外周側に水素ガスなどの燃料ガス
を流すことにより固体電解質６の内外周側での酸素濃度
の差に起因する電気化学的な反応によって起電力を生じ
るようになっている。FIG. 1 is a cutaway perspective view schematically showing a part of a fuel cell according to the present invention, in which a plurality (five in the figure) of cells 1 are formed as one stack 2 and connected in series. Things. That is, each unit cell 1 is a so-called cylindrical type, an example of which is schematically shown in FIG. 2, and an outer periphery of a ceramic support tube 3 formed in a porous structure with alumina (Al 2 O 3 ) or the like. In addition, an oxygen electrode 4 made of a perovskite-type lanthanum-based composite oxide or the like is formed, and an interconnector 5 made of a nickel alloy or the like is protruded from a part of the outer surface thereof. Electrode 4
A solid electrolyte 6 made of yttria-stabilized zirconia (YSZ) or the like is formed on the outer periphery of the solid electrolyte 6. Further, a fuel electrode 7 made of a nickel alloy or a cermet of nickel and zirconia is formed on the outer periphery of the solid electrolyte 6 so as to be non-conductive to the interconnector 5. Therefore, the cell 1 is caused by a difference in oxygen concentration between the inner and outer peripheral sides of the solid electrolyte 6 by flowing an oxidizing gas such as air on the inner peripheral side and flowing a fuel gas such as hydrogen gas on the outer peripheral side. An electromotive force is generated by an electrochemical reaction.
またスタック２は、内部集電子８とその内部集電子８
に対してほぼ同心状に配置した外部集電子９の間に上記
の単電池１を複数本配置して構成されている。その内部
集電子８および外部集電子９は耐熱性や耐水素脆性に富
む材料例えばニッケルやニッケル合金によって形成され
た管状の部材であって、内部集電子８の外周には導電性
の緩衝材例えばニッケルフェルト10が密着状態で配置さ
れ、各単電池１はそれぞれのインターコネクタ５をその
ニッケルフェルト10に当接させることにより一方の電極
である酸素電極４を内部集電子８に導通させた状態で内
部集電子８の外周に配列されている。また内部集電子８
の外周には、導電板11が半径方向で外側に向けて突出し
た状態に配置されている。この導電板11は内部集電子８
と同一の素材からなるものであって、内部集電子８もし
くは単電池１とほぼ等しい長さを有し、単電池１を配置
すべき内部集電子８の外周の一箇所にあってその一側端
を内部集電子８に接触させ、もしくは固着し、あるいは
一体化することにより内部集電子８に電気的に一体化し
た状態に配置されており、さらにこの導電板11の他方の
側端部は、外部集電子９を絶縁状態で貫通してその外側
に延出している。そしてまた外部集電子９は内部集電子
８と同様な素材素材からなる筒状の部材であって、その
内周面に添設した導電性緩衝材例えばニッケルフェルト
12に各単電池１の外面すなわち燃料電極７を接触した状
態で複数の単電池１を収容している。この外部集電子９
の一部には軸線方向に沿ってスリット13が形成され、前
記導電板11はそのスリット13を通って外部集電子９の外
側に突出している。The stack 2 includes an internal current collector 8 and the internal current collector 8.
A plurality of the above-mentioned unit cells 1 are arranged between external current collectors 9 which are arranged substantially concentrically. The internal current collector 8 and the external current collector 9 are tubular members formed of a material having a high heat resistance and a high resistance to hydrogen embrittlement, for example, nickel or a nickel alloy. Nickel felt 10 is arranged in close contact, and each cell 1 is brought into contact with its respective interconnector 5 against its nickel felt 10 so that one electrode, oxygen electrode 4, is conducted to internal current collector 8. It is arranged on the outer periphery of the internal current collector 8. Internal current collector 8
The conductive plate 11 is disposed on the outer periphery of the device in a state of protruding outward in the radial direction. The conductive plate 11 is used for the internal current collector 8.
And has a length substantially equal to that of the internal current collector 8 or the unit cell 1 and is located at one position on the outer periphery of the internal current collector 8 where the unit cell 1 is to be disposed. The end is brought into contact with, fixed to, or integrated with the internal current collector 8 so as to be electrically integrated with the internal current collector 8. , The external current collector 9 penetrates in an insulating state and extends to the outside. The external current collector 9 is a cylindrical member made of the same material as that of the internal current collector 8, and has a conductive buffer material such as nickel felt provided on the inner peripheral surface thereof.
A plurality of unit cells 1 are accommodated in 12 with the outer surface of each unit cell 1, that is, the fuel electrode 7 in contact therewith. This external current collector 9
A slit 13 is formed in a part of the conductive plate 11 along the axial direction, and the conductive plate 11 projects outside the external current collector 9 through the slit 13.
以上のように構成された複数のスタック２が直並列に
接続されて燃料電池を構成しており、その直列状態は第
１図に示すとおりであり、互いに隣接する一対のスタッ
ク２のうち一方のスタック２の導電板11の端部が他方の
スタック２の外周集電子９の外面に導電性緩衝材例えば
ニッケルフェルト14を介在させて電気的に接触し、これ
によりスタック２同士が直列に接続されている。The plurality of stacks 2 configured as described above are connected in series and parallel to form a fuel cell, and the series state is as shown in FIG. 1, and one of a pair of adjacent stacks 2 is adjacent to each other. The end of the conductive plate 11 of the stack 2 electrically contacts the outer surface of the outer peripheral current collector 9 of the other stack 2 with a conductive buffer material such as nickel felt 14 interposed therebetween, whereby the stacks 2 are connected in series. ing.
各スタック２においては、それぞれの単電池１の内周
側に空気や酸素ガスなどの酸化性ガスを流し、また外周
側に水素ガスなどの燃料ガスを流すことにより発電がお
こなわれ、その酸素電極４が内部集電子８に導通し、か
つ燃料電極７が外部集電子９に導通しているので、内部
集電子８が陽極で外部集電子９が陰極となる。そして各
スタック２は内部集電子８もしくは単電池１の長さ程度
の長さを有する前記導電板11によって直列に接続されて
いることによりそれぞれのスタック２で生じた電流を含
めた総電流がその導電板11を通って他のスタック２に流
れる。したがって導電板11での断面積が広いためにこの
部分での抵抗が小さくなり、また各スタック２から他の
スタック２への電流は、それぞれの内部集電子８の一端
部側を経由せずに軸線方向でのいずれの箇所からも導電
板11を介して直接流れるので電流流路が短くなる。した
がってスタック２を接続することに伴う抵抗が特に大き
くならず、高出力の燃料電池となる。In each of the stacks 2, power is generated by flowing an oxidizing gas such as air or oxygen gas on the inner peripheral side of each cell 1 and flowing a fuel gas such as hydrogen gas on the outer peripheral side thereof. Since 4 is electrically connected to the internal current collector 8 and the fuel electrode 7 is electrically connected to the external current collector 9, the internal current collector 8 functions as an anode and the external current collector 9 functions as a cathode. Each of the stacks 2 is connected in series by the conductive plate 11 having a length about the length of the internal current collector 8 or the unit cell 1, so that the total current including the current generated in each of the stacks 2 is obtained. It flows to another stack 2 through the conductive plate 11. Therefore, since the cross-sectional area of the conductive plate 11 is large, the resistance at this portion is small, and the current from each stack 2 to other stacks 2 does not pass through one end of each internal current collector 8. Since the current flows directly from any part in the axial direction via the conductive plate 11, the current flow path is shortened. Therefore, the resistance associated with the connection of the stack 2 does not become particularly large, and the fuel cell has a high output.
なお、この発明では、上記の実施例で述べたようにス
タック２を直列に接続するのみならず、上述のように直
列に接続したスタック群を更に並列に接続してもよい。In the present invention, not only the stacks 2 are connected in series as described in the above embodiment, but also the stack groups connected in series as described above may be further connected in parallel.
発明の効果 以上の説明から明らかなようにこの発明の燃料電池の
構造によれば、スタック同士の間の電路の断面積が広く
なるのでその部分での抵抗が極めて小さくなり、またス
タックの接続ための導電板が内部集電子の軸線方向に沿
う長いものであるから一方のスタックの単電池から他方
のスタックの単電池に至る電路が短くなり、この点でも
抵抗の低減化が図られ、したがってこの発明によれば内
部抵抗が小さく発電効率の高い燃料電池を得ることがで
きる。Advantageous Effects of the Invention As is clear from the above description, according to the structure of the fuel cell of the present invention, the cross-sectional area of the electric circuit between the stacks is widened, so that the resistance at that part is extremely small, and the stack is connected. Is long along the axial direction of the internal current collector, the electrical path from the unit cell of one stack to the unit cell of the other stack is shortened. In this respect, the resistance is also reduced, and thus the present invention According to this, a fuel cell having low internal resistance and high power generation efficiency can be obtained.
第１図はこの発明の一実施例の一部を模式的に示す部分
破断斜視図、第２図は単電池の一つを模式的に示す断面
図である。 １……単電池、２……スタック、４……酸素電極、５…
…インターコネクタ、６……固体電解質、７……燃料電
極、８……内部集電子、９……外部集電子、11……導電
板、13……スリット、14……ニッケルフェルト。FIG. 1 is a partially broken perspective view schematically showing a part of one embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing one of the unit cells. 1 ... cell, 2 ... stack, 4 ... oxygen electrode, 5 ...
... interconnector, 6 ... solid electrolyte, 7 ... fuel electrode, 8 ... internal current collector, 9 ... external current collector, 11 ... conductive plate, 13 ... slit, 14 ... nickel felt.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長谷川 正一 東京都江東区木場１丁目５番１号 藤倉 電線株式会社内 (72)発明者 丹 正之 東京都江東区木場１丁目５番１号 藤倉 電線株式会社内 (72)発明者 山之内 宏 東京都江東区木場１丁目５番１号 藤倉 電線株式会社内 (56)参考文献 特開 平２−312169（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 8/00 - 8/02 H01M 8/08 - 8/24──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoichi Hasegawa 1-5-1 Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (72) Inventor Masayuki Tan 1-1-5-1 Kiba, Koto-ku, Tokyo Fujikura (72) Inventor Hiroshi Yamanouchi 1-5-1 Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (56) References JP-A-2-312169 (JP, A) (58) Fields investigated Int.Cl. 6 , DB name) H01M 8/00-8/02 H01M 8/08-8/24
Claims (1)
の内外周面に形成してなる複数の単電池を、互いにほぼ
同心状に配置した内部集電子と筒状の外部集電子との間
に、一方の電極を内部集電子に導通させかつ他方の電極
を外部集電子に導通させた状態で配列するとともに、一
側端が内部集電子に電気的に一体化されかつ他側端が外
部集電子を絶縁状態で貫通した導電板を内部集電子の外
周でかついずれかの単電池の間に配置してスタックが構
成され、互いに隣接して配置されたスタックがその導電
板の他側端を他のスタックの外部集電子の外面に電気的
に接触させて接続されていることを特徴とする固体電解
質燃料電池の構造。An internal current collector and a cylindrical external current collector in which a plurality of cells each having an oxygen electrode and a fuel electrode formed on the inner and outer peripheral surfaces of a cylindrical solid electrolyte are arranged substantially concentrically with each other. And one of the electrodes is electrically connected to the internal current collector and the other is electrically connected to the internal current collector while the other electrode is electrically connected to the internal current collector. Are arranged on the outer periphery of the internal current collector and between any of the unit cells to form a stack, and the stacks arranged adjacent to each other are the other A structure of a solid oxide fuel cell, wherein a side end is electrically connected to an outer surface of an external current collector of another stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1133396A JP2816475B2 (en) | 1989-05-26 | 1989-05-26 | Structure of solid oxide fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1133396A JP2816475B2 (en) | 1989-05-26 | 1989-05-26 | Structure of solid oxide fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02312171A JPH02312171A (en) | 1990-12-27 |
| JP2816475B2 true JP2816475B2 (en) | 1998-10-27 |
Family
ID=15103772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1133396A Expired - Fee Related JP2816475B2 (en) | 1989-05-26 | 1989-05-26 | Structure of solid oxide fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2816475B2 (en) |
-
1989
- 1989-05-26 JP JP1133396A patent/JP2816475B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02312171A (en) | 1990-12-27 |
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