JPS63166160A - Solid electrolyte fuel cell - Google Patents
Solid electrolyte fuel cellInfo
- Publication number
- JPS63166160A JPS63166160A JP61315591A JP31559186A JPS63166160A JP S63166160 A JPS63166160 A JP S63166160A JP 61315591 A JP61315591 A JP 61315591A JP 31559186 A JP31559186 A JP 31559186A JP S63166160 A JPS63166160 A JP S63166160A
- Authority
- JP
- Japan
- Prior art keywords
- flat plate
- solid electrolyte
- electrode
- fuel cell
- ceramic
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 42
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 22
- 239000000919 ceramic Substances 0.000 abstract description 41
- 239000001301 oxygen Substances 0.000 abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 abstract description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 28
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 abstract description 5
- 229910002076 stabilized zirconia Inorganic materials 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000000565 sealant Substances 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 44
- 229910052759 nickel Inorganic materials 0.000 description 22
- 239000007787 solid Substances 0.000 description 9
- 238000000605 extraction Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000003411 electrode reaction Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 238000007613 slurry method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—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
- H01M8/2435—High-temperature cells with solid electrolytes with monolithic core structure, e.g. honeycombs
-
- 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
- H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、平板型解質燃料電池の改良に関する。[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD The present invention relates to improvements in flat plate type electrolyte fuel cells.
［従来の技術１
固体電解質燃料電池（Ｓｏｌｉｄ ０ｘｉｄｅ Ｆ
ｕｅｌＣｅｌｌ、 以下５ＯＦＣと称す）は、＾効率発
電システムの１つとして注目されている。この５ＯＦＧ
は、酸化物固体内での酸素イオン導電性を利用し、約１
０００℃の作動湿度で燃料ガスと空気とを用いて電極反
応を起こさせて発電するものである。[Conventional technology 1 Solid oxide fuel cell (Solid Oxide F
uelCell (hereinafter referred to as 5OFC) is attracting attention as one of the efficient power generation systems. This 5OFG
utilizes the oxygen ion conductivity within the oxide solid, and approximately 1
It generates electricity by causing an electrode reaction using fuel gas and air at an operating humidity of 1,000°C.
ところで、従来、５ＯＦＣとしては円筒状の多孔質セラ
ミックス基体の表面に燃料極（又は空気極）、固体電解
質及び空気極（又は燃料極）を順次積層し゛た薄膜状の
燃料電池部を形成した円筒型のものが知られている。か
かる円筒型５ＯＦＣは、基体の内側に燃料（又は空気）
を、外側に空気（又は燃料）を流して発電を行なうもの
である。By the way, conventionally, 5OFC is a cylindrical type in which a thin film fuel cell part is formed by sequentially laminating a fuel electrode (or air electrode), a solid electrolyte, and an air electrode (or fuel electrode) on the surface of a cylindrical porous ceramic substrate. Types are known. Such a cylindrical 5OFC has fuel (or air) inside the base.
It generates electricity by flowing air (or fuel) to the outside.
また、円筒型とは別の５ＯＦＧとしては第７図に示す平
板型のものが知られている。即ち、図中の１は導電性の
インタコネクタ２を備えたセルである。このインクコネ
クタ２の下面周縁には凸部３が形成されている。また、
前記インタコネクタ２の上面には、例えば酸素流路とな
る複数の溝４が、前記凸部３を除く下面には該満４と直
交する例えば燃料流路となる複数の溝５が夫々設けられ
ている。前記インタコネクタ２の溝５を除く下面には、
例えば酸素電極６が設けられている。このｌ！＊ｉｉｔ
極６を含む前記インタコネクタ２の凸部３には板状の電
解質７が設けられ、かつ前記酸素電極６に対応する該電
解質７の下面に燃料電ｌ１ｉ８が設けられている。そし
て、前記インクコネクタ２、酸素電極６、電解質７及び
燃料電極８からなるセル１を上下方向に積層することに
よって平板型５ＯＦＣを構成している。かかる平板型５
ＯＦＣは、酸素電極３で下面が囲まれたインタコネクタ
２の溝５の空間に酸素を、燃料電極８で上面が囲まれた
インタコネクタ２のｒｓ４の空間に燃料を夫々流して発
電を行なう。Further, as a 5OFG other than the cylindrical type, a flat plate type shown in FIG. 7 is known. That is, 1 in the figure is a cell equipped with a conductive interconnector 2. A convex portion 3 is formed on the periphery of the lower surface of the ink connector 2 . Also,
The upper surface of the interconnector 2 is provided with a plurality of grooves 4, which serve as, for example, oxygen flow paths, and the lower surface, excluding the convex portion 3, is provided with a plurality of grooves 5, which are orthogonal to the grooves and serve as, for example, fuel flow paths. ing. On the lower surface of the interconnector 2 except for the groove 5,
For example, an oxygen electrode 6 is provided. This l! *iit
A plate-shaped electrolyte 7 is provided on the convex portion 3 of the interconnector 2 including the poles 6, and a fuel cell 11i8 is provided on the lower surface of the electrolyte 7 corresponding to the oxygen electrode 6. A flat plate type 5OFC is constructed by vertically stacking the cells 1 each including the ink connector 2, oxygen electrode 6, electrolyte 7, and fuel electrode 8. Such a flat plate type 5
The OFC generates electricity by flowing oxygen into the groove 5 space of the interconnector 2 whose bottom surface is surrounded by the oxygen electrodes 3, and flowing fuel into the rs4 space of the interconnector 2 whose top surface is surrounded by the fuel electrodes 8.
上記第７図図示の他に、上述した燃料電池部をインクコ
ネクタ間に波形に配置した、いわゆるモノシリツク型５
ＯＦＧが知られている。In addition to the one shown in FIG.
OFG is known.
［発明が解決しようとする問題点］
しかしながら、従来の円筒型５ＯＦＧではシール構造が
比較的簡単にできるものの、電流を１ｌｌｌｌの厚さに
対して直交する方向に取出すため、電流を大きくできず
、大型化が困難となる。また、大出力の装置を製作する
ためには１ｏｏｏｏ万本以上の円筒型だモジュールで構
成しなければならず、実用性に乏しいという問題があっ
た。[Problems to be Solved by the Invention] However, although the conventional cylindrical 5OFG has a relatively simple seal structure, the current cannot be increased because the current is taken out in a direction perpendicular to the thickness of 1 lll. It becomes difficult to increase the size. In addition, in order to manufacture a high-output device, it must be constructed with more than 100,000 cylindrical modules, which poses the problem of poor practicality.
また、平板型５ＯＦＣでは薄膜の厚さ方向に電流を取出
すことができ、大電流大型装置に向いているが、約１０
００℃で水素及び／又は酸素に耐えるシール材が必要と
なるという問題があった。In addition, the flat plate type 5OFC can extract current in the thickness direction of the thin film, making it suitable for large-scale devices with high current.
There is a problem in that a sealing material that can withstand hydrogen and/or oxygen at 00°C is required.
本発明は、上記従来の問題点を解決するためになされた
もので、大電流の取出しが容易で、かつ大型化が可能で
、しかもシールの問題も解決し易く、更にガス流路を確
保し易い構造の固体電解質燃料電池を提供しようとする
ものである。The present invention was made in order to solve the above-mentioned conventional problems, and it is easy to take out a large current, it can be made large, it is easy to solve the problem of sealing, and it is possible to secure a gas flow path. The present invention aims to provide a solid electrolyte fuel cell with a simple structure.
［問題点を解決するための手段］
本発明は、平板と平板とが貫通固体で接続され、かつ各
貫通筒体内に燃料電池部を夫々形成した構造のモジュー
ルを、複数個積層したことを特徴とする固体電解質燃料
電池である。[Means for Solving the Problems] The present invention is characterized in that a plurality of modules are stacked, each of which has a structure in which flat plates are connected by a penetrating solid body and a fuel cell portion is formed in each penetrating cylinder. This is a solid electrolyte fuel cell.
［作用］
本発明によれば、平板と平板とが貫通同体で接続され、
かつ各貫通筒体内に燃料電池部を夫々形成した構造のモ
ジュールを用い、このモジュールを複数個積層すること
によって、大電流の取出しが容易で、かつ大型化が可能
で、しかもシールの問題も解決し易く、更にガス流路を
確保し易い構造の固体電解質燃料電池を得ることが可能
となる。[Function] According to the present invention, the flat plates are connected through the same body,
In addition, by using a module with a structure in which a fuel cell part is formed in each through cylinder, and by stacking multiple modules, it is easy to take out a large current, it is possible to increase the size, and the problem of sealing is also solved. It becomes possible to obtain a solid electrolyte fuel cell having a structure in which gas flow paths are easily secured.
［発明の実施例］
ＩＸＴ、、本、。実施例や第１図ｉ第ｙ０゜照して説明
する。[Embodiments of the Invention] IXT,, Book. This will be explained with reference to embodiments and the i-th y0° of FIG.
面７図堝４ヒ。図中の２１ａ 、 ２１ｂは、互いに対
向して配置された例えば１００麿Ｘ１００ ａｓ＋Ｘ１
，５ ｍの導電性を有するセラミックス平板である。上
部セラミックス平板２１ａは、燃料極を兼用し、かつ該
平板２１ａには下部開口径６５１１φのテーパ付穴２２
ａが８１個等間隔で開口されている。前記下部セラミッ
クス平板２１ｂは、後述するモジュールを積層する際の
インタコネクタを兼用し、かつ該平板２１ｂには下部開
口径８ｍ１Ｉφのテーパ付穴２２ｂが前記穴２２ａと対
向して開口されている。図中の２３は、前記一対のセラ
ミックス平板２１ａ 、、 ２１ｂの穴２２ａ 、 ２
２ｂに夫々貫通され、上部セラミックス平板２１ａの穴
２２ａ部分でセラミックス接着剤を介して接合された複
数本の多孔質セラミックス製円筒体である。Men 7 tu 4 hi. 21a and 21b in the figure are, for example, 100 mm x 100 as+X1 arranged opposite to each other.
, 5 m of conductivity. The upper ceramic flat plate 21a also serves as a fuel electrode, and the flat plate 21a has a tapered hole 22 with a lower opening diameter of 6511φ.
81 a are opened at equal intervals. The lower ceramic flat plate 21b also serves as an interconnector when stacking modules to be described later, and a tapered hole 22b with a lower opening diameter of 8 m1Iφ is opened in the flat plate 21b, facing the hole 22a. 23 in the figure is the hole 22a, 2 of the pair of ceramic flat plates 21a, 21b.
This is a plurality of porous ceramic cylindrical bodies that are respectively penetrated by holes 2b and joined via a ceramic adhesive at the holes 22a of the upper ceramic flat plate 21a.
これら円筒体２３は、外形６履φ、内形５ｍφ、長さ１
５ＩＩｔＲで上端がテーパ状となっており、かつ前記平
板２１ａ 、２１ｂに貫通させた状態において上端が上
部セラミックス平板２１ａから突出し、かつ下端が前記
下部セラミックス平板２２ｂの上面から上方に位置して
いる。図中の２４は、前記平板２１ａ１２１ｂの間に配
置されたセラミックス製支持構造物であり、かつ該支持
構造物２４は正方形筒体を平面的に十字状となるように
組合わせた形状をなしている。なお、該支持構造物２４
の四側壁はコ字型形状となっている。前記支持構造物２
４の十字状上面を除く側面及び下面には、例えばＬａ
Ｃｏ ０３からなる酸素極２５が積層され、かつ該酸素
極２５の底面は前記下部セラミックス平板２１ｂに接触
、固定されている。また、前記支持構造物２４の十字状
上面及び該支持構造物２４の側面に対応する前記酸素極
２５の面には例えば安定化ジルコニアからなる固体電解
質２Ｂが積層され、かつ該固体電解質２６の上面は前記
上部セラミックス平板２１ａに、側面は前記セラミック
ス製円筒体２２に夫々接触、固定されている。なお、固
体電解質２６の下端は前記下部セラミックス平板２１ｂ
の穴２２ｂ内面を覆うように延出されている。こうした
燃料極を兼ねる上部セラミックス平板２１ａ１インタコ
ネクタを兼ねる下部セラミックス平板２１ｂ１多孔質セ
ラミツクス製円筒体２３、支持構造物２４、酸素極３５
及び固体電解質２６により第１図及び第２図に示すモジ
ュール２７を構成している。なお、かかるモジュール２
７は次のような方法に製作される。These cylindrical bodies 23 have an outer diameter of 6 mm, an inner diameter of 5 m, and a length of 1
5IItR and has a tapered upper end, and when penetrated through the flat plates 21a and 21b, the upper end protrudes from the upper ceramic flat plate 21a, and the lower end is located above the upper surface of the lower ceramic flat plate 22b. Reference numeral 24 in the figure represents a ceramic support structure disposed between the flat plates 21a and 121b, and the support structure 24 has a shape in which square cylinders are combined to form a cross shape in plan view. There is. Note that the support structure 24
The four side walls are U-shaped. The support structure 2
For example, La
An oxygen electrode 25 made of Co 03 is laminated, and the bottom surface of the oxygen electrode 25 is in contact with and fixed to the lower ceramic flat plate 21b. Further, a solid electrolyte 2B made of, for example, stabilized zirconia is laminated on the cross-shaped upper surface of the support structure 24 and the surface of the oxygen electrode 25 corresponding to the side surface of the support structure 24, and the upper surface of the solid electrolyte 26 is in contact with and fixed to the upper ceramic flat plate 21a, and the side surface is in contact with and fixed to the ceramic cylindrical body 22, respectively. Note that the lower end of the solid electrolyte 26 is connected to the lower ceramic flat plate 21b.
The hole 22b is extended to cover the inner surface of the hole 22b. An upper ceramic flat plate 21a that also serves as a fuel electrode, a lower ceramic flat plate 21b that also serves as an interconnector, a porous ceramic cylinder 23, a support structure 24, an oxygen electrode 35
The solid electrolyte 26 constitutes a module 27 shown in FIGS. 1 and 2. In addition, such module 2
7 is manufactured by the following method.
まず、上部セラミックス平板２１ａの各穴２２ａに複数
本の多孔質セラミックス製円筒体２３の上端テーパ部を
そのテーバ部が該平板２１ａの上面から突出するように
セラミックス接着剤を介して挿着する。つづいて、上部
セラミックス平板２１ａを反転して前記複数本の円筒体
２３が上部側に植設するような状態にした後、予め十字
状上面を除く側面及び下面にＬａ Ｃ００９をスラリー
コートして形成された平面形状が十字状をなすセラミッ
クス支持構造物２４をその側面が前記各円筒体２３１１
１面と隣接するように反転して配置する。次いで、前記
支持構造物２４の酸素極２５上に複数の穴２２ｂが開口
された下部セラミックス平板２１ｂをそれらの穴２２ｂ
が前記円筒体２３と合致するように固定した後、上部セ
ラミックス平板２１ａと円筒体２３と酸素極２５及び下
部セラミックス平板２１ｂが形成された支持構造物２４
とで囲まれた断面凹状の溝部に安定化ジルコニアをゾル
ゲル法で注入して固体電解質２６を形成し、反転させる
ことにより第２図図示のモジール２７が製作される。First, the tapered upper ends of a plurality of porous ceramic cylinders 23 are inserted into each hole 22a of the upper ceramic flat plate 21a via a ceramic adhesive so that the tapered parts protrude from the upper surface of the flat plate 21a. Next, after inverting the upper ceramic flat plate 21a so that the plurality of cylindrical bodies 23 are planted on the upper side, the side and lower surfaces except for the cross-shaped upper surface are slurry-coated with La C009. The side surface of the ceramic support structure 24 having a cross-shaped planar shape is connected to each of the cylindrical bodies 2311.
Place it inverted so that it is adjacent to the first side. Next, the lower ceramic flat plate 21b with a plurality of holes 22b opened on the oxygen electrode 25 of the support structure 24 is inserted into the holes 22b.
is fixed so as to match the cylindrical body 23, and then the support structure 24 is formed with the upper ceramic flat plate 21a, the cylindrical body 23, the oxygen electrode 25, and the lower ceramic flat plate 21b.
A solid electrolyte 26 is formed by injecting stabilized zirconia into a groove having a concave cross section surrounded by a sol-gel method, and the module 27 shown in FIG. 2 is manufactured by inverting the solid electrolyte 26.
そして、前記モジュール２７（２７１〜２７ｓ）は第３
図に示すようにニッケルメツシュ２８を介して例えば５
段積Ｈされる。この際、２段目以降の各モジール２７２
〜２７５の多孔質セラミックス製円筒体２３はニッケル
メツシュ２８を貫通してそれらの上段に位隨するモジュ
ールの円筒体２３の下部に挿入される。また、各モジー
ル２７１〜２７５の積層後の支持構造物２４の四側壁に
露出する支持構造物２４、酸素極２５、下部セラミック
ス平板２１ｂ１上部セラミックス平板２１ａ 、 固体
１ｊｌｆ貿２６及びセラミックス製支持構造物２４の六
ＩＩ構造部にはシール材２９が設けられている。このシ
ール材２９は、例えば金メッキを施したニッケルを使用
する。こうしたモジュール２７１〜２７５の積層体は本
体容！！３０に収納されて５ＯＦＧが構成される。なお
、前記本体容器３０の上面には正極電力取出し極３１ａ
が、下面には負穫電力取出し極３１ｂが夫々接続されて
いる。The module 27 (271-27s) is the third
For example, 5 through the nickel mesh 28 as shown in the figure.
Stacked H. At this time, each module 272 from the second stage onward
~275 porous ceramic cylinders 23 are inserted through the nickel mesh 28 into the lower part of the cylinder 23 of the module positioned above them. In addition, the support structure 24 exposed on the four side walls of the support structure 24 after laminating each of the modules 271 to 275, the oxygen electrode 25, the lower ceramic flat plate 21b1, the upper ceramic flat plate 21a, the solid 1jlf trade 26, and the ceramic support structure 24 A sealing material 29 is provided in the 6II structural portion. This sealing material 29 uses, for example, nickel plated with gold. The laminate of these modules 271 to 275 is the main body! ! 30 to form 5OFG. Note that a positive power extraction electrode 31a is provided on the upper surface of the main body container 30.
However, a negative power extraction pole 31b is connected to the bottom surface of each of them.
このような構成の５ＯＦＧは、次のような操作により発
電がなされる。即ち、Ｈ２等の燃料を円筒体２３を通し
てモジュール２１１〜２７．の積層方向に流し、酸素（
又は空気）を各モジュール２７１〜２７ｓの正方形筒体
を平面的に十字状となるように組合わせた形状のセラミ
ックス製支持構造物２４を通して前記燃料に対して直交
する方向に夫々流す。The 5OFG having such a configuration generates power through the following operations. That is, fuel such as H2 is passed through the cylindrical body 23 to the modules 211 to 27. Oxygen (
or air) is made to flow in a direction perpendicular to the fuel through the ceramic support structure 24, which has a shape in which the square cylinders of the modules 271 to 27s are combined to form a cross shape in plan.
モジール２７１〜２７ｓからなる積層体内は、６００〜
１２００℃に保持されており、ここで前記燃料と酸素（
又は空気）が電解質２Ｇを介して電極反応が起こって発
電がなされ、一対の取出し極３１ａ 、 ３１ｂから電
力が取出される。The inside of the laminated body consisting of modules 271-27s is 600-
It is maintained at 1200°C, where the fuel and oxygen (
(or air) undergoes an electrode reaction through the electrolyte 2G to generate electricity, and electricity is extracted from the pair of extraction electrodes 31a and 31b.
従って、本発明の５ＯＦＧでは次のような効果を達成で
きる。Therefore, the following effects can be achieved with the 5OFG of the present invention.
■、平板２１ａ 、 ２１ｂの面積（１００ｃｊ）に対
して燃料＊Ｎ１部の有効面積が５φ×１０ρ×８１子と
して１２７ ｅｉであるので、平板をｉｌ！接燃料電池
とした場合の約３割増の出力が取出すことができる。■The effective area of the fuel*N1 part is 127ei as 5φ×10ρ×81 children for the area (100cj) of the flat plates 21a and 21b, so the flat plates are il! Approximately 30% more output can be obtained than when using a fuel cell.
■０円筒体２３の一つ一つの１！流は従来の円筒形と同
様の取出し方であるが、取出し経路を短くでき、それら
を集合した電流については平板２１ａ 、２１ｂに垂直
方向に取出すために内部抵抗を低くでき、有利となる。■0 Each 1 of the cylindrical body 23! Although the current is taken out in the same manner as in the conventional cylindrical shape, the extraction path can be shortened, and the collected current can be taken out in a direction perpendicular to the flat plates 21a and 21b, so that the internal resistance can be lowered, which is advantageous.
■、水素と酸素の供給が本質的に直角となっているため
、発電８Ｍの設計が容易となる。(2) Since the supply of hydrogen and oxygen is essentially at right angles, the design of the power generation 8M becomes easy.
■、いずれのガス流路も充分に確保されており、ガス流
路が発電のネックになることはない。(2) All gas flow paths are sufficiently secured and will not become a bottleneck for power generation.
■、各モジール２７１〜２７５のＩｌｌ！後の支持構造
物２４の四１１壁に露出する冷却作用を受ける支持ｍ逸
物２４、酸素極２５、下部セラミックス平板２１ｂ、上
部セラミックス平板２１ａ１固体電解質２６及びセラミ
ックス製支持構造物２４の六ｍ１１１造部に、シール材
２９を設けているため、該シール材２９として高温で酸
素に耐える材料を用いることなく、通常の金メッキが施
されたニッケルを用いることが可能となる。■Ill of each module 271-275! The support structure 24 exposed to the cooling effect on the four walls of the rear support structure 24, the oxygen electrode 25, the lower ceramic flat plate 21b, the upper ceramic flat plate 21a, the solid electrolyte 26, and the six m111 parts of the ceramic support structure 24 Since the sealing material 29 is provided in the sealing material 29, it is possible to use ordinary gold-plated nickel as the sealing material 29 without using a material that can withstand oxygen at high temperatures.
なお、上記実施例では燃料極を上部セラミックス平板で
、インクコネクタを下部セラミックス電極で夫々兼用し
たが、これら燃料極やインクコネクタを別途設けてもよ
い。In the above embodiment, the upper ceramic flat plate serves as the fuel electrode and the lower ceramic electrode serves as the ink connector, but these fuel electrodes and ink connectors may be provided separately.
また、本発明の５ＯＦＧは上述した第１図〜第３図に示
す構造のものに限定されず、以下に説明する第４図〜第
６図に示す構造にしてもよい。Further, the 5OFG of the present invention is not limited to the structure shown in FIGS. 1 to 3 described above, but may have the structure shown in FIGS. 4 to 6 described below.
即ち、図中の４１８ 、４１ｂは、互いに対向して配置
サレタ例えハ１００ ｇＸ １００ ｓＸ １ ｔｔｍ
のニッケル平板である。上部ニッケル平板４１ａには、
６ｊｌｌφの穴４２ａが８１個等間隔で開口されている
。前記下部ニッケル平板４１ｂには、６１Ｍ１φの穴４
２ｂが前記穴４２ａと対向して開口されている。前記一
対のニッケル平板４１ａ 、 ４１ｂの穴４２ａ 、
４２ｂ ニは、外形６ａｌφ、内形５Ｊｌｌφ、長ざ１
５．の燃料極を兼ねる複数本のニッケル焼結多孔質円筒
体４３が夫々貫通され、溶接により固定されている。前
記下部ニッケル平板４２ｂ下面と前記円筒体４３の内面
に屋り部分には、例えば安定化ジルコニアからなる固体
電解１４４及び例えばＬａ Ｃｏ ０３からなる酸素極
４５が順次設けられている。また、前記上部ニッケル平
板４１ａ上には例えばヘロブス力イト酸化物からなるイ
ンタコネクタ４６が設けられている。こうした上下ニッ
ケル平板４１ａ 、 ４１ｂ 、燃料極を兼ねるニッケ
ル焼結多孔質円筒体４３、固体電解質４４、酸素極４５
及びインタコネクタ４６により第４図及び第５図に示す
モジュール４７を構成している。なお、かかるモジュー
ル４１は次のような方法に製作される。That is, 418 and 41b in the figure are arranged opposite to each other.
It is a nickel plate. The upper nickel flat plate 41a has
Eighty-one holes 42a each having a diameter of 6jllφ are opened at equal intervals. The lower nickel flat plate 41b has a hole 4 of 61M1φ.
2b is opened facing the hole 42a. Holes 42a in the pair of nickel flat plates 41a and 41b,
42b D has an outer diameter of 6alφ, an inner diameter of 5Jllφ, and a length of 1
5. A plurality of nickel sintered porous cylindrical bodies 43 which also serve as fuel electrodes are respectively penetrated and fixed by welding. A solid electrolyte 144 made of, for example, stabilized zirconia and an oxygen electrode 45 made of, for example, La Co 03 are sequentially provided on the lower surface of the lower nickel flat plate 42b and on the inner surface of the cylindrical body 43. Further, an interconnector 46 made of, for example, herobsite oxide is provided on the upper nickel flat plate 41a. These upper and lower nickel flat plates 41a and 41b, a nickel sintered porous cylinder 43 that also serves as a fuel electrode, a solid electrolyte 44, and an oxygen electrode 45
and interconnector 46 constitute a module 47 shown in FIGS. 4 and 5. Note that this module 41 is manufactured by the following method.
まず、一対のニッケル平板４１ａ 、 ４１ｂの穴４２
ａ１４２ｂに燃料極を兼ねる複数本のニッケル焼結多孔
質円筒体４３を貫通させ、溶接により固定する。つづい
て、下部ニッケル平板４２ｂ下面と前記円筒体４３の内
面に亙っ部分に安定化ジルコニアをゾルゲル法でコーテ
ィングして固体電解質４４を形成した後、Ｌａ Ｃｏ
０３をスラリーコート法によりコーティングして酸素極
４５を形成する。次いで、上部ニッケル平板４１ａ上に
ヘロブス力イト酸化物をスラリー法又は溶射法により被
覆してインクコネクタ４６を形成することにより第５図
図示のモジール４７が製作される。First, the holes 42 in the pair of nickel flat plates 41a and 41b
A142b is penetrated by a plurality of nickel sintered porous cylinders 43 which also serve as fuel electrodes, and fixed by welding. Subsequently, stabilized zirconia was coated on the lower surface of the lower nickel flat plate 42b and the inner surface of the cylindrical body 43 using a sol-gel method to form a solid electrolyte 44, and then LaCo
03 by a slurry coating method to form an oxygen electrode 45. Next, the module 47 shown in FIG. 5 is manufactured by coating the upper nickel flat plate 41a with herobsite oxide by a slurry method or a thermal spraying method to form an ink connector 46.
そして、前記モジュール４７（４７，〜４１ｓ）は第６
図に示すように例えば５段積層される。また、各モジー
ル４１１〜４７５の積層後の四側壁に露出する下部ニッ
ケル平板４１ｂ、固体電解質４４、酸素極４５、インタ
コネクタ４６及び上部ニッケル平板４１ａの五層構造部
には、例えば金箔からなるシール材４８が設けられてい
る。こうしたモジュール４７１〜２７５の積層体は、本
体容器４９に収納されて５ＯＦＣが構成される。なお、
前記本体容器４９の上面には正極電力取出し極５０ａが
、下面には負極電力取出し極５０ｂが夫々接続されてい
る。The module 47 (47, to 41s) is the sixth module.
As shown in the figure, for example, five layers are stacked. In addition, a seal made of gold foil, for example, is attached to the five-layer structure of the lower nickel flat plate 41b, the solid electrolyte 44, the oxygen electrode 45, the interconnector 46, and the upper nickel flat plate 41a exposed on the four side walls after laminating each of the modules 411 to 475. A material 48 is provided. A stacked body of such modules 471 to 275 is housed in a main body container 49 to constitute 5OFC. In addition,
A positive power extraction pole 50a is connected to the upper surface of the main body container 49, and a negative power extraction electrode 50b is connected to the lower surface thereof.
このような構成の５ＯＦＧは、次のような操作により発
電がなされる。即ち、酸素（又は空気）を円筒体４３を
通してモジュール４１１〜４７５の積層方向に流し、水
素等の燃料を各モジュール４７．〜４７５の一対のニッ
ケル平板４１ａ 、 ４１ｂと円筒体４３の外周面で囲
まれた空間を通して前記酸素（又は空気）に対し直交す
る方向に夫々流す。モジール４７１〜４１５からなる積
層体内は、６００〜１２００℃に保持されており、ここ
で前記酸素（又は空気）と燃料が電解質４４を介して電
極反応が起こって発電がなされ、一対の取出し極５０ａ
、 ５０ｂから電力が取出される。The 5OFG having such a configuration generates power through the following operations. That is, oxygen (or air) flows through the cylindrical body 43 in the stacking direction of the modules 411 to 475, and fuel such as hydrogen is supplied to each module 47. The oxygen (or air) is caused to flow in a direction perpendicular to the oxygen (or air) through a space surrounded by a pair of nickel flat plates 41a, 41b and the outer peripheral surface of the cylindrical body 43. The inside of the stacked body consisting of the modules 471 to 415 is maintained at 600 to 1200°C, and here, an electrode reaction occurs between the oxygen (or air) and fuel via the electrolyte 44 to generate electricity, and a pair of extraction electrodes 50a
, 50b.
従って、第６図に示す５ＯＦＧでは前述した第３図図示
の５ＯＦＣと同様な効果を達成できる。Therefore, the 5OFG shown in FIG. 6 can achieve the same effect as the 5OFC shown in FIG. 3 described above.
［発明の効果］
以上詳述した如く、本発明によれば大電流の取出しが容
易で、かつ大型化が可能で、しかもシールの問題も解決
し易く、更にガス°流路を確保し易い構造の固体電解質
燃料電池を提供できる。[Effects of the Invention] As detailed above, according to the present invention, it is easy to take out a large current, it is possible to increase the size, it is easy to solve the problem of sealing, and it is easy to secure a gas flow path. solid electrolyte fuel cells.
第１図は、本発明の一実施例の固体電解質燃料電池に用
いる七ジュールを示す斜視図、第２図は第１図の要部拡
大斜視図、第３図は本発明の一実施例の固体電解質燃料
電池を示す概略図、第４図は、本発明の他の実施例の固
体電解質燃料電池に用いるモジュールを示す斜視図、第
５図は第４図の要部拡大斜視図、第６図は本発明の他の
実施例の固体電解質燃料電池を示す概略図、第７図は従
来の平板型固体電解質燃料電池を示す斜視図である。
２１ａ 、２１ｂ・・・導電性セラミックス平板、２２
ａ１２２ｂ 、４２ａ 、４２ｂ・・・穴、２３・・・
多孔質セラミックス製円筒体、２４・・・セラミックス
製支持構造物、２５．４５−＠業種、２６．４４ ・・
・固体電解質、２７．２７ａ １〜２７ｓ 、 ４７．
４７ａ１〜４１５・・・モジュール、２９．４８・・・
シール材、３０．４９・・・本体容器、４１ａ １４１
ｂ・・・ニッケル平板、４３・・・ニッケル焼結多孔質
円筒体、４６・・・インクコネクタ。
出願人復代理人 弁理士 鈴江武彦
第１図
第３図
第４図
り２
第 ６ 図
第７図FIG. 1 is a perspective view showing a 7 joule used in a solid electrolyte fuel cell according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the main part of FIG. 4 is a schematic diagram showing a solid oxide fuel cell; FIG. 4 is a perspective view showing a module used in a solid oxide fuel cell according to another embodiment of the present invention; FIG. 5 is an enlarged perspective view of the main part of FIG. 4; The figure is a schematic view showing a solid oxide fuel cell according to another embodiment of the present invention, and FIG. 7 is a perspective view showing a conventional flat plate type solid oxide fuel cell. 21a, 21b... conductive ceramic flat plate, 22
a122b, 42a, 42b...hole, 23...
Porous ceramic cylindrical body, 24...Ceramic support structure, 25.45-@Industry, 26.44...
・Solid electrolyte, 27.27a 1-27s, 47.
47a1-415...Module, 29.48...
Seal material, 30.49...Main container, 41a 141
b... Nickel flat plate, 43... Nickel sintered porous cylinder, 46... Ink connector. Applicant Sub-Agent Patent Attorney Takehiko Suzue Figure 1 Figure 3 Figure 4 Diagram 2 Figure 6 Figure 7
Claims (1)
に燃料電池部を夫々形成した構造のモジュールを、複数
個積層したことを特徴とする固体電解質燃料電池。A solid electrolyte fuel cell characterized in that a plurality of modules are stacked, each of which has a structure in which flat plates are connected by through cylinders, and each of the through cylinders has a fuel cell section formed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61315591A JPS63166160A (en) | 1986-12-26 | 1986-12-26 | Solid electrolyte fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61315591A JPS63166160A (en) | 1986-12-26 | 1986-12-26 | Solid electrolyte fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63166160A true JPS63166160A (en) | 1988-07-09 |
Family
ID=18067194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61315591A Pending JPS63166160A (en) | 1986-12-26 | 1986-12-26 | Solid electrolyte fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63166160A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071841A3 (en) * | 2000-03-30 | 2002-08-15 | Michael A Cobb & Company | Tubular electrochemical devices with lateral fuel apertures for increasing active surface area |
| WO2013087355A1 (en) * | 2011-12-12 | 2013-06-20 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung | Solid state electrolyte for use in lithium-air or lithium-water storage batteries |
-
1986
- 1986-12-26 JP JP61315591A patent/JPS63166160A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071841A3 (en) * | 2000-03-30 | 2002-08-15 | Michael A Cobb & Company | Tubular electrochemical devices with lateral fuel apertures for increasing active surface area |
| WO2013087355A1 (en) * | 2011-12-12 | 2013-06-20 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung | Solid state electrolyte for use in lithium-air or lithium-water storage batteries |
| US9966628B2 (en) | 2011-12-12 | 2018-05-08 | Praunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung | Solid-state electrolyte for use in lithium-air batteries or in lithium-water batteries |
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