JP2002313370A - Separator for use in solid electrolyte fuel cell and solid electrolyte fuel cell with such separator incorporated therein - Google Patents
Separator for use in solid electrolyte fuel cell and solid electrolyte fuel cell with such separator incorporated thereinInfo
- Publication number
- JP2002313370A JP2002313370A JP2001120572A JP2001120572A JP2002313370A JP 2002313370 A JP2002313370 A JP 2002313370A JP 2001120572 A JP2001120572 A JP 2001120572A JP 2001120572 A JP2001120572 A JP 2001120572A JP 2002313370 A JP2002313370 A JP 2002313370A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- opening
- fuel cell
- hole
- center
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、固体電解質型燃料電
池のセパレータおよびこのセパレータを組み込んだ固体
電解質型燃料電池に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separator for a solid oxide fuel cell and a solid oxide fuel cell incorporating the separator.
【０００２】[0002]
【従来の技術】従来の固体電解質型燃料電池は、図７の
断面概略図に示されるように、固体電解質３の片面に空
気極２を積層させ、固体電解質３の他方の片面に燃料極
５を積層させたセル９、前記セル９の空気極２に接して
空気極集電体１を積層させ、セル９の燃料極５に接して
燃料極集電体６を積層させた構造を有しており、さらに
空気極集電体１および燃料極集電体６の外側に、それぞ
れ空気が通る溝７を有するセパレータ４および水素が通
る溝８を有するセパレータ４を積層させた構造となって
いる。この従来の固体電解質型燃料電池は中央部に貫通
して設けられた空気供給パイプ１０を通して空気を導入
し、中央部に貫通して設けられた燃料ガス供給パイプ１
１を通して燃料ガスを導入するようになっている。この
空気供給パイプ１０の一部はセパレータ４の空気が通る
溝７に連通しており、燃料ガス供給パイプ１１の一部は
セパレータ４の燃料ガスが通る溝８に連通しており、空
気供給パイプ１０および燃料ガス供給パイプ１１と固体
電解質３、空気極２および燃料極５からなるセル９との
間にはセラミックセメント１２が詰められ、それによっ
て空気および燃料ガスがセル９に漏れるのを完全防止し
ている。2. Description of the Related Art In a conventional solid oxide fuel cell, as shown in the schematic sectional view of FIG. 7, an air electrode 2 is laminated on one surface of a solid electrolyte 3 and a fuel electrode 5 is formed on the other surface of the solid electrolyte 3. , The air electrode current collector 1 is stacked in contact with the air electrode 2 of the cell 9, and the fuel electrode current collector 6 is stacked in contact with the fuel electrode 5 of the cell 9. In addition, a separator 4 having a groove 7 through which air passes and a separator 4 having a groove 8 through which hydrogen passes are laminated on the outside of the cathode current collector 1 and the anode current collector 6, respectively. . In this conventional solid oxide fuel cell, air is introduced through an air supply pipe 10 penetrating a central portion, and a fuel gas supply pipe 1 penetrating a central portion is provided.
1 through which fuel gas is introduced. A part of the air supply pipe 10 communicates with a groove 7 of the separator 4 through which air passes, and a part of the fuel gas supply pipe 11 communicates with a groove 8 of the separator 4 through which fuel gas passes. A ceramic cement 12 is filled between the fuel cell 10 and the fuel gas supply pipe 11 and the cell 9 comprising the solid electrolyte 3, the air electrode 2 and the fuel electrode 5, thereby completely preventing air and fuel gas from leaking into the cell 9. are doing.
【０００３】前記固体電解質は一般にイットリアで安定
化したジルコニア（以下、ＹＳＺという）で構成されて
いるが、近年、Ｌｎ1-xＡxＧａ1-y-zＢ1Ｂ2Ｏ3（但し、
Ｌｎ＝Ｌａ、Ｃｅ、Ｐｒ、Ｎｄ、Ｓｍの１種または２種
以上、Ａ＝Ｓｒ、Ｃａ、Ｂａの１種または２種以上、Ｂ
1＝Ｍｇ、Ａｌ、Ｉｎの１種または２種以上、Ｂ2＝Ｃ
ｏ、Ｆｅ、Ｎｉ、Ｃｕの１種または２種以上、ｘ＝０．
０５〜０．３、ｙ＝０〜０．２９、ｚ＝０．０１〜０．
３、ｙ＋ｚ＝０．０２５〜０．３）で示される酸化物な
ども使用されている。さらにセパレータ４はランタンク
ロマイト（ＬａＣｒＯ3）からなる緻密なセラミックス
で構成されていることもあるが、強度およびコストの面
で安価なステンレス鋼が使用されている。さらに、空気
極は（Ｓｍ、Ｓｒ）ＣｏＯ3、（Ｌａ、Ｓｒ）ＭｎＯ3な
どのセラミックスで構成されており、燃料極はＮｉ／Ｙ
ＳＺサーメット、Ｎｉ／（Ｃｅ、Ｓｍ）Ｏ2サーメット
などで構成されている。そして空気極集電体は白金メッ
シュで構成されており、燃料極集電体はＮｉメッシュま
たは発泡Ｎｉで構成されている。固体電解質型燃料電池
の燃料としては、水素ガス、天然ガス、メタノール、石
炭ガスなどが知られており、最終的に水として排出され
るために環境問題の観点から注目されている。The above-mentioned solid electrolyte is generally composed of zirconia stabilized with yttria (hereinafter referred to as YSZ). In recent years, however, Ln 1-x A x Ga 1-yz B 1 B 2 O 3 (where
Ln = one or more of Ce, Pr, Nd, Sm, A = one or more of Sr, Ca, Ba, B
1 = one or more of Mg, Al, In, B 2 = C
one or more of o, Fe, Ni, and Cu, x = 0.
05-0.3, y = 0-0.29, z = 0.01-0.
3, oxides represented by y + z = 0.025 to 0.3) are also used. Further, the separator 4 may be made of dense ceramics made of lanthanum chromite (LaCrO 3 ), but stainless steel which is inexpensive in strength and cost is used. Further, the air electrode is made of ceramics such as (Sm, Sr) CoO 3 and (La, Sr) MnO 3 , and the fuel electrode is Ni / Y
It is composed of SZ cermet, Ni / (Ce, Sm) O 2 cermet or the like. The cathode current collector is made of a platinum mesh, and the anode current collector is made of a Ni mesh or foamed Ni. As fuels for solid oxide fuel cells, hydrogen gas, natural gas, methanol, coal gas, and the like are known, and since they are finally discharged as water, they are attracting attention from the viewpoint of environmental problems.
【０００４】[0004]
【発明が解決しようとする課題】この従来の固体電解質
型燃料電池は、空気および燃料ガスが中央部から周辺に
向かって均一に流れるために優れた効果を奏するもので
あるが、前記従来の固体電解質型燃料電池は、（ａ）中
央部に空気供給パイプ１０および燃料ガス供給パイプ１
１を設け、さらに固体電解質３、空気極２および燃料極
５からなるセル９と空気供給パイプ１０および燃料ガス
供給パイプ１１との間にセラミックセメント１２が設け
られているところから、発電効率に最も関係するセルの
面積が減少し、それによって発電効率が低下する、
（ｂ）前記空気供給パイプ１０、燃料ガス供給パイプ１
１およびセラミックセメント１２を設けても、固体電解
質型燃料電池は発電停止時の常温と作動中の８００〜１
０００℃の繰り返し温度に曝されており、これら空気供
給パイプ１０、燃料ガス供給パイプ１１およびセラミッ
クセメント１２は耐熱性に優れているものの破損しやす
い材質で作られているところから、空気および燃料ガス
のセルに対する漏洩の信頼性は十分ではない。This conventional solid oxide fuel cell has an excellent effect because air and fuel gas flow uniformly from the center to the periphery. The electrolyte type fuel cell includes (a) an air supply pipe 10 and a fuel gas supply pipe 1 in the center.
1 and the ceramic cement 12 between the cell 9 comprising the solid electrolyte 3, the air electrode 2 and the fuel electrode 5, and the air supply pipe 10 and the fuel gas supply pipe 11, The area of cells involved is reduced, thereby reducing power generation efficiency;
(B) The air supply pipe 10 and the fuel gas supply pipe 1
1 and the ceramic cement 12 are provided, the solid oxide fuel cell can be operated at room temperature when power generation is stopped and at 800 to 1 during operation.
Since the air supply pipe 10, the fuel gas supply pipe 11, and the ceramic cement 12 are made of a material which is excellent in heat resistance but is easily broken, air and fuel gas Is not reliable enough for the cell.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明者等は、
上述のような観点から、固体電解質型燃料電池のさらな
る改良を行なった。その結果、周辺に少なくとも２個の
支持部を有しかつ該支持部にそれぞれセパレータ厚さ方
向に貫通する貫通孔が設けられており、この貫通孔から
円盤の中央部に向かって延びかつ中央部で円盤の表面に
向かって開口する開口部を有する空気供給用中空孔と、
この貫通孔から中央部に向かって延びかつ中央部でセパ
レータの表面に開口する開口部を有する燃料ガス供給用
中空孔とを有し、前記空気供給用中空孔の開口部と前記
燃料ガス供給用中空孔の開口部とは相反する面に開口し
ているセパレータを作製し、このセパレータを組み込ん
で作製した固体電解質型燃料電池は、中央部に空気供給
パイプ、燃料ガス供給パイプおよびセラミックセメント
を設ける必要が無いところから、セルの面積が広がって
発電効率が一層向上し、さらに空気供給パイプ、燃料ガ
ス供給パイプおよびセラミックセメントの破損による空
気および燃料ガスのセルに対する漏洩の心配もなくな
る、という知見が得られたのである。Means for Solving the Problems Accordingly, the present inventors have
From the above viewpoint, the solid oxide fuel cell was further improved. As a result, at least two support portions are provided around the periphery, and the support portions are each provided with a through-hole penetrating in the thickness direction of the separator. A hollow hole for air supply having an opening that opens toward the surface of the disk at
A fuel gas supply hollow having an opening extending from the through hole toward the center and having an opening that opens to the surface of the separator at the center; and an opening of the air supply hollow and the fuel gas supply. A solid electrolyte fuel cell manufactured by fabricating a separator that is opened on a surface opposite to the opening of the hollow hole and incorporating the separator is provided with an air supply pipe, a fuel gas supply pipe, and ceramic cement in a central portion. Since there is no need, there is the finding that the cell area is expanded, the power generation efficiency is further improved, and there is no fear of leakage of air and fuel gas to the cell due to breakage of the air supply pipe, fuel gas supply pipe and ceramic cement. It was obtained.
【０００６】この発明は、かかる知見に基づいてなされ
たものであって、 （１）周辺から中央部に向かって延び、中央部でセパレ
ータの表面に向かって開口する開口部を有する少なくと
も１本の空気供給用中空孔と、周辺から中央部に向かっ
て延び、中央部でセパレータの表面に開口する開口部を
有する少なくとも１本の燃料ガス供給用中空孔とを有
し、前記空気供給用中空孔の開口部と前記燃料ガス供給
用中空孔の開口部とは相反する面に開口している固体電
解質型燃料電池用セパレータ、に特徴を有するものであ
る。The present invention has been made based on such knowledge, and (1) at least one opening extending from the periphery toward the center and having an opening opening toward the surface of the separator at the center. A hollow hole for air supply, and at least one hollow hole for fuel gas supply extending from the periphery toward the center and having an opening opening on the surface of the separator at the center, the hollow hole for air supply; And a separator for a solid oxide fuel cell which is open on a surface opposite to the opening of the fuel gas supply hollow hole.
【０００７】前記固体電解質型燃料電池用セパレータの
平面形状は特に限定されるものではないが、固体電解質
型燃料電池用セパレータの平面形状は円盤状であること
が一層好ましく、円盤の周辺に支持部が設けられている
ことが好ましい。円盤の周辺に設けられた支持部には、
厚さ方向に貫通した貫通孔が設けられ、その支持部の貫
通孔から半径方向に中央部に向かって延びかつ中央部で
円盤の表面に向かって開口する開口部を有する空気供給
用中空孔と、周辺から中央部に向かって延びかつ中央部
でセパレータの表面に開口する開口部を有する燃料ガス
供給用中空孔とを有し、前記空気供給用中空孔の開口部
と前記燃料ガス供給用中空孔の開口部とは相反する面に
開口している構造であることが好ましい。[0007] The planar shape of the solid oxide fuel cell separator is not particularly limited, but the planar shape of the solid oxide fuel cell separator is more preferably a disk shape. Is preferably provided. In the support provided around the disk,
A through hole provided in the thickness direction, a hollow hole for air supply having an opening extending toward the center in the radial direction from the through hole of the support portion and opening toward the surface of the disk at the center. A fuel gas supply hollow having an opening extending from the periphery toward the center and having an opening that opens to the surface of the separator at the center, wherein an opening of the air supply hollow and the fuel gas supply hollow are provided. It is preferable that the opening is formed on a surface opposite to the opening of the hole.
【０００８】したがって、この発明は、 （２）円盤状の固体電解質型燃料電池用セパレータであ
って、このセパレータは周辺に少なくとも２個の支持部
を有しかつ該支持部にそれぞれセパレータ厚さ方向に貫
通する貫通孔が設けられており、この貫通孔から円盤の
中央部に向かって延びかつ中央部で円盤の表面に向かっ
て開口する開口部を有する空気供給用中空孔と、この貫
通孔から中央部に向かって延びかつ中央部でセパレータ
の表面に開口する開口部を有する燃料ガス供給用中空孔
とを有し、前記空気供給用中空孔の開口部と前記燃料ガ
ス供給用中空孔の開口部とは相反する面に開口している
固体電解質型燃料電池用セパレータ、に特徴を有するも
のである。Accordingly, the present invention provides (2) a disk-shaped separator for a solid oxide fuel cell, wherein the separator has at least two support portions around its periphery, and each of the support portions has a thickness direction in the separator thickness direction. A through hole extending through the through hole toward the center of the disk and having an opening opening toward the surface of the disk at the center. A fuel gas supply hollow having an opening extending toward a center portion and opening to the surface of the separator at the center; and an opening of the air supply hollow and an opening of the fuel gas supply hollow The part is characterized by a separator for a solid oxide fuel cell which is open on the opposite surface.
【０００９】[0009]
【発明の実施の形態】この発明の固体電解質型燃料電池
用セパレータの製造方法について図面を用いた説明する
が、この製造方法に限定されるものではない。まず、図
１（ａ）の斜視図に示されるように、厚いステンレス鋼
板を切断して周辺部両端に支持部１３を有する円盤１５
を作製する。この時用いる厚いステンレス鋼板はＪＩＳ
４３０が好ましく、支持部１３は対抗するように設ける
ことが好ましい。この円盤１５の支持部１３に図１
（ｂ）に示されるように円盤１５の厚さ方向に貫通する
貫通孔１４を設け、さらにこの貫通孔１４から中央部に
向かって図１（ｂ）のII−II断面図である図２に示され
るような段付きの蟻溝１６を形成し、この段付きの蟻溝
１６に図１（ｃ）のIII−III断面図である図３に示され
るようにステンレス鋼の薄板１７を被せて溶接し、それ
によって円盤１５の周辺に設けられた支持部１３の貫通
孔１４から図１（ｃ）のIV−IV断面図である図４に示さ
れるように、中央部に向かって半径方向に延びかつ中央
部でセパレータの表面に向かって開口する開口部１８を
有する少なくとも１本の燃料ガス供給用中空孔１９と、
中央部に向かって半径方向に延びかつ中央部でセパレー
タの表面に開口する開口部２０を有する少なくとも１本
の空気供給用中空孔２１を設け、前記燃料ガス供給用中
空孔１９の開口部１８と前記空気供給用中空孔２１の開
口部２０とは相反する面に開口している構造のセパレー
タ４４を作製する。このセパレータ４４には図7に示さ
れる従来のセパレータと同様に空気が通る溝７および燃
料ガスが通る溝８をつけても良いが、白金メッシュなど
の通気性の良い空気極集電体およびＮｉメッシュまたは
発泡Ｎｉなどの通気性の良い燃料極集電体を使用する場
合は特に溝をつける必要がない。特に近年開発された固
体電解質型燃料電池は作動温度が低くなって、８００℃
前後で作動するようになったので空気極集電体にＡｇメ
ッシュまたは発泡Ａｇを用いることができ、この発明の
空気極集電体にはＡｇメッシュまたは発泡Ａｇを用いる
ことが好ましい。DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a separator for a solid oxide fuel cell according to the present invention will be described with reference to the drawings, but the present invention is not limited to this method. First, as shown in a perspective view of FIG. 1 (a), a thick stainless steel plate is cut and a disk 15 having support portions 13 at both ends in a peripheral portion.
Is prepared. The thick stainless steel plate used at this time is JIS
430 is preferable, and the support portion 13 is preferably provided so as to oppose. The support portion 13 of the disk 15
As shown in FIG. 1B, a through hole 14 is provided to penetrate the disk 15 in the thickness direction, and further from the through hole 14 toward the center in FIG. A stepped dovetail groove 16 as shown is formed, and the stepped dovetail groove 16 is covered with a stainless steel thin plate 17 as shown in FIG. 3 which is a sectional view taken along the line III-III of FIG. As shown in FIG. 4 which is a cross-sectional view taken along the line IV-IV of FIG. 1 (c), through the through hole 14 of the support portion 13 provided around the disk 15 by welding, At least one fuel gas supply hollow hole 19 having an opening 18 extending and opening at the center toward the surface of the separator;
At least one air supply hollow 21 having an opening 20 extending in the radial direction toward the center and opening to the surface of the separator at the center is provided, and an opening 18 of the fuel gas supply hollow 19 is provided. A separator 44 having a structure opened on a surface opposite to the opening 20 of the air supply hollow hole 21 is manufactured. The separator 44 may be provided with a groove 7 through which air passes and a groove 8 through which fuel gas passes, similarly to the conventional separator shown in FIG. In the case of using a fuel electrode current collector having good air permeability such as mesh or foamed Ni, it is not particularly necessary to form a groove. Particularly, a solid oxide fuel cell developed recently has a low operating temperature of 800 ° C.
Since it operates before and after, Ag mesh or foamed Ag can be used for the cathode collector, and it is preferable to use Ag mesh or foamed Ag for the cathode collector of the present invention.
【００１０】このようにして製造したセパレータ４４
は、図５の斜視図に示されるように、セパレータ４４、
４４の間に空気極集電体１、セル９および燃料極集電体
６を挟み、支持部１３と支持部１３の間にパイプ状絶縁
シール２２を支持部１３の貫通孔１４とパイプ状絶縁シ
ール２２の中空部分とが貫通するように置き、重ねるこ
とにより固体電解質型燃料電池を製造する。[0010] The separator 44 manufactured in this manner.
Is a separator 44, as shown in the perspective view of FIG.
The cathode current collector 1, the cell 9, and the anode current collector 6 are sandwiched between 44, and a pipe-shaped insulating seal 22 is provided between the support 13 and the through-hole 14 of the support 13. A solid oxide fuel cell is manufactured by placing the hollow portion of the seal 22 so as to penetrate therethrough and stacking them.
【００１１】このようにして製造したこの発明の固体電
解質型燃料電池は図６の断面概略図に示されるようにさ
らに重ねられる。前記重ねられたこの発明の固体電解質
型燃料電池において、パイプ状絶縁シール２２は重ねら
れて燃料ガス供給パイプおよび空気供給パイプの役割を
担うが、この絶縁シール２２は特に厳密なシール機能が
要求されるものではなく、したがって、パイプ２３を通
して導入された燃料ガスおよびパイプ２４を通して導入
された空気が微量漏れても差し支えない。The solid oxide fuel cells of the present invention thus manufactured are further stacked as shown in the schematic sectional view of FIG. In the superposed solid oxide fuel cell of the present invention, the pipe-shaped insulating seals 22 are superposed and serve as a fuel gas supply pipe and an air supply pipe. However, the insulating seal 22 is required to have a particularly strict sealing function. Therefore, a small amount of fuel gas introduced through the pipe 23 and a small amount of air introduced through the pipe 24 may leak.
【００１２】[0012]
【発明の効果】この本発明の固体電解質型燃料電池は、
空気供給パイプおよび燃料ガス供給パイプが固体電解
質、空気極および燃料極からなるセルの外側に設けられ
ているために、空気供給パイプおよび燃料ガス供給パイ
プから空気および燃料ガスが漏れ出てセルに悪影響を及
ぼす心配がなく、また、従来の固体電解質型燃料電池と
比べて固体電解質、空気極および燃料極からなるセルを
中央部まで広げることができ、セルの面積が広がって、
一層発電効率の良い固体電解質型燃料電池を提供するこ
とができ、燃料電池産業の発展に大いに寄与するもので
ある。The solid oxide fuel cell of the present invention has the following features.
Since the air supply pipe and the fuel gas supply pipe are provided outside the cell composed of the solid electrolyte, the cathode, and the fuel electrode, air and fuel gas leak from the air supply pipe and the fuel gas supply pipe and adversely affect the cell. In addition, the cell composed of the solid electrolyte, the air electrode and the fuel electrode can be expanded to the center part, and the cell area can be increased, as compared with the conventional solid electrolyte fuel cell.
A solid oxide fuel cell with even higher power generation efficiency can be provided, which greatly contributes to the development of the fuel cell industry.
【図１】この発明の固体電解質型燃料電池用セパレータ
の製造方法を説明するための概略斜視図である。FIG. 1 is a schematic perspective view for explaining a method for producing a separator for a solid oxide fuel cell according to the present invention.
【図２】図１（ｂ）におけるII−II断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
【図３】図１（ｃ）におけるIII−III断面図である。FIG. 3 is a sectional view taken along the line III-III in FIG.
【図４】図１（ｃ）におけるIV−IV断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG.
【図５】この発明の固体電解質型燃料電池用セパレータ
を用いて固体電解質型燃料電池を製造するときの説明図
である。FIG. 5 is an explanatory diagram when a solid oxide fuel cell is manufactured using the solid oxide fuel cell separator of the present invention.
【図６】この発明の固体電解質型燃料電池用セパレータ
を用いて製造した固体電解質型燃料電池の断面説明図で
ある。FIG. 6 is a cross-sectional explanatory view of a solid oxide fuel cell manufactured using the solid oxide fuel cell separator of the present invention.
【図７】従来の固体電解質型燃料電池の断面説明図であ
る。FIG. 7 is an explanatory sectional view of a conventional solid oxide fuel cell.
１ 空気極集電体 ２ 空気極 ３ 固体電解質 ４ セパレータ ５ 燃料極 ６ 燃料極集電体 ７ 溝 ８ 溝 ９ セル １０ 空気供給パイプ １１ 燃料ガス供給パイプ １２ セラミックセメント １３ 支持部 １４ 貫通孔 １５ 円盤 １６ 蟻溝 １７ 薄板 １８ 開口部 １９ 燃料ガス供給用中空孔 ２０ 開口部 ２１ 空気供給用中空孔 ２２ 絶縁用シール ２３ パイプ ２４ パイプ ４４ セパレータ DESCRIPTION OF SYMBOLS 1 Air electrode current collector 2 Air electrode 3 Solid electrolyte 4 Separator 5 Fuel electrode 6 Fuel electrode current collector 7 Groove 8 Groove 9 Cell 10 Air supply pipe 11 Fuel gas supply pipe 12 Ceramic cement 13 Support part 14 Through hole 15 Disk 16 Dovetail 17 Thin plate 18 Opening 19 Fuel gas supply hollow hole 20 Opening 21 Air supply hollow hole 22 Insulating seal 23 Pipe 24 Pipe 44 Separator
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5H026 AA06 CC06 CV01 CX06 ──────────────────────────────────────────────────続 き The continuation of the front page F term (reference) 5H026 AA06 CC06 CV01 CX06
Claims (4)
でセパレータの表面に向かって開口する開口部を有する
少なくとも１本の空気供給用中空孔と、周辺から中央部
に向かって延びかつ中央部でセパレータの表面に開口す
る開口部を有する少なくとも１本の燃料ガス供給用中空
孔とを有し、前記空気供給用中空孔の開口部と前記燃料
ガス供給用中空孔の開口部とは相反する面に開口してい
ることを特徴とする固体電解質型燃料電池用セパレー
タ。At least one air supply hollow having an opening extending from the periphery toward the center and opening toward the surface of the separator at the center, and extending from the periphery toward the center and having a center. At least one fuel gas supply hollow hole having an opening that opens to the surface of the separator at a portion, and the opening of the air supply hollow hole and the opening of the fuel gas supply hollow hole are opposite to each other. A separator for a solid oxide fuel cell, characterized in that the separator is open on the surface to be treated.
タであって、このセパレータは周辺に少なくとも２個の
支持部を有しかつ該支持部にそれぞれセパレータ厚さ方
向に貫通する貫通孔が設けられており、この貫通孔から
円盤の中央部に向かって延びかつ中央部で円盤の表面に
向かって開口する開口部を有する空気供給用中空孔と、
この貫通孔から中央部に向かって延びかつ中央部でセパ
レータの表面に開口する開口部を有する燃料ガス供給用
中空孔とを有し、前記空気供給用中空孔の開口部と前記
燃料ガス供給用中空孔の開口部とは相反する面に開口し
ていることを特長とする固体電解質型燃料電池用セパレ
ータ。2. A disk-shaped separator for a solid oxide fuel cell, wherein the separator has at least two support portions around its periphery, and each of the support portions is provided with a through hole penetrating in the thickness direction of the separator. An air supply hollow hole extending from the through hole toward the center of the disk and having an opening that opens toward the surface of the disk at the center,
A fuel gas supply hollow having an opening extending from the through hole toward the center and having an opening that opens to the surface of the separator at the center; and an opening of the air supply hollow and the fuel gas supply. A separator for a solid oxide fuel cell, wherein the separator is open on a surface opposite to the opening of the hollow hole.
の片面に空気極を積層させたセル、前記セルの空気極に
接して積層させた空気極集電体、前記セルの燃料極に接
して積層させた燃料極集電体、並びに前記空気極集電体
および燃料極集電体にそれぞれ積層させたセパレータか
らなる構造を有する固体電解質型燃料電池において、前
記セパレータは、請求項１または２記載の構造を有する
セパレータであることを特徴とする固体電解質型燃料電
池。3. A cell in which a fuel electrode is stacked on one side of a solid electrolyte and an air electrode is stacked on the other side, an air electrode current collector stacked in contact with the air electrode of the cell, and a fuel electrode of the cell. In a solid oxide fuel cell having a structure composed of an anode current collector stacked in contact with, and a separator respectively stacked on the air electrode current collector and the anode current collector, the separator is characterized in that: 3. A solid oxide fuel cell, which is a separator having the structure described in 2.
の支持部と燃料極集電体に積層させたセパレータの支持
部との間にパイプ状絶縁シールを介在させ、前記空気極
集電体に積層させたセパレータの支持部に設けられた貫
通孔と燃料極集電体に積層させたセパレータの支持部に
設けられた貫通孔とパイプ状絶縁シールの中空部分とが
連通していることを特徴とする請求項３記載の固体電解
質型燃料電池。4. A method according to claim 1, wherein a pipe-shaped insulating seal is interposed between a support portion of the separator laminated on the cathode current collector and a support portion of the separator laminated on the anode current collector. The through hole provided in the support portion of the separator laminated on the body, the through hole provided in the support portion of the separator laminated on the anode current collector, and the hollow portion of the pipe-shaped insulating seal communicate with each other. 4. The solid oxide fuel cell according to claim 3, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001120572A JP2002313370A (en) | 2001-04-19 | 2001-04-19 | Separator for use in solid electrolyte fuel cell and solid electrolyte fuel cell with such separator incorporated therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001120572A JP2002313370A (en) | 2001-04-19 | 2001-04-19 | Separator for use in solid electrolyte fuel cell and solid electrolyte fuel cell with such separator incorporated therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002313370A true JP2002313370A (en) | 2002-10-25 |
Family
ID=18970584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001120572A Pending JP2002313370A (en) | 2001-04-19 | 2001-04-19 | Separator for use in solid electrolyte fuel cell and solid electrolyte fuel cell with such separator incorporated therein |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002313370A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005060034A2 (en) | 2003-12-17 | 2005-06-30 | Honda Motor Co., Ltd. | Fuel cell and fuel cell stack |
| JP2006236597A (en) * | 2005-02-22 | 2006-09-07 | Mitsubishi Materials Corp | Separator for fuel cell and solid oxide fuel cell |
| JP2007207500A (en) * | 2006-01-31 | 2007-08-16 | Honda Motor Co Ltd | Fuel cell |
| JP2007207499A (en) * | 2006-01-31 | 2007-08-16 | Honda Motor Co Ltd | Fuel cell |
| WO2007138984A1 (en) * | 2006-05-29 | 2007-12-06 | Ngk Spark Plug Co., Ltd. | Solid electrolyte fuel cell stack |
| JP2008117736A (en) * | 2006-11-08 | 2008-05-22 | Nippon Telegr & Teleph Corp <Ntt> | Planar fuel cell |
| WO2008090744A1 (en) * | 2007-01-25 | 2008-07-31 | Mitsubishi Materials Corporation | Solid oxide fuel cell and fuel cell stack |
| JP2008204946A (en) * | 2007-01-25 | 2008-09-04 | Mitsubishi Materials Corp | Solid oxide fuel cell |
| JP2009224299A (en) * | 2008-03-19 | 2009-10-01 | Kyocera Corp | Cell stack device, and fuel battery module |
| US7625657B2 (en) * | 2003-12-17 | 2009-12-01 | Honda Motor Co., Ltd. | Fuel cell and fuel cell stack |
| WO2010079376A1 (en) * | 2009-01-07 | 2010-07-15 | National Taiwan University Of Science & Technology | Fuel cell and fabricating method thereof |
| JP2011070982A (en) * | 2009-09-28 | 2011-04-07 | Kyocera Corp | Cell stack device, fuel cell module and fuel cell device using the cell stack device |
| US8288051B2 (en) | 2007-01-25 | 2012-10-16 | Mitsubishi Materials Corporation | Solid oxide fuel cell and fuel cell stack |
-
2001
- 2001-04-19 JP JP2001120572A patent/JP2002313370A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7601453B2 (en) | 2003-12-17 | 2009-10-13 | Honda Motor Co., Ltd. | Fuel cell and fuel cell stack |
| WO2005060034A2 (en) | 2003-12-17 | 2005-06-30 | Honda Motor Co., Ltd. | Fuel cell and fuel cell stack |
| US7914937B2 (en) | 2003-12-17 | 2011-03-29 | Honda Motor Co., Ltd. | Fuel cell and fuel cell stack |
| US7625657B2 (en) * | 2003-12-17 | 2009-12-01 | Honda Motor Co., Ltd. | Fuel cell and fuel cell stack |
| JP2006236597A (en) * | 2005-02-22 | 2006-09-07 | Mitsubishi Materials Corp | Separator for fuel cell and solid oxide fuel cell |
| JP2007207500A (en) * | 2006-01-31 | 2007-08-16 | Honda Motor Co Ltd | Fuel cell |
| JP2007207499A (en) * | 2006-01-31 | 2007-08-16 | Honda Motor Co Ltd | Fuel cell |
| WO2007138984A1 (en) * | 2006-05-29 | 2007-12-06 | Ngk Spark Plug Co., Ltd. | Solid electrolyte fuel cell stack |
| US8501365B2 (en) | 2006-05-29 | 2013-08-06 | Ngk Spark Plug Co., Ltd. | Solid electrolyte fuel cell stack |
| JP5313667B2 (en) * | 2006-05-29 | 2013-10-09 | 日本特殊陶業株式会社 | Solid electrolyte fuel cell stack |
| JP2008117736A (en) * | 2006-11-08 | 2008-05-22 | Nippon Telegr & Teleph Corp <Ntt> | Planar fuel cell |
| JP2008204946A (en) * | 2007-01-25 | 2008-09-04 | Mitsubishi Materials Corp | Solid oxide fuel cell |
| WO2008090744A1 (en) * | 2007-01-25 | 2008-07-31 | Mitsubishi Materials Corporation | Solid oxide fuel cell and fuel cell stack |
| US8288051B2 (en) | 2007-01-25 | 2012-10-16 | Mitsubishi Materials Corporation | Solid oxide fuel cell and fuel cell stack |
| JP2009224299A (en) * | 2008-03-19 | 2009-10-01 | Kyocera Corp | Cell stack device, and fuel battery module |
| WO2010079376A1 (en) * | 2009-01-07 | 2010-07-15 | National Taiwan University Of Science & Technology | Fuel cell and fabricating method thereof |
| US8298722B2 (en) | 2009-01-07 | 2012-10-30 | National Taiwan University Of Science And Technology | Fuel cell and fabricating method thereof |
| JP2011070982A (en) * | 2009-09-28 | 2011-04-07 | Kyocera Corp | Cell stack device, fuel cell module and fuel cell device using the cell stack device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100889266B1 (en) | The combination structure of solid oxide fuel cell between electrode and interconnect | |
| JP5198797B2 (en) | Solid electrolyte fuel cell | |
| JP2012038701A (en) | Fuel cell structure | |
| CN106374120A (en) | Structure of self-sealed flat-shaped solid oxide fuel cell/electrolytic cell | |
| JP2002313370A (en) | Separator for use in solid electrolyte fuel cell and solid electrolyte fuel cell with such separator incorporated therein | |
| JP2000048831A (en) | Solid electrolyte fuel cell | |
| JP4883733B1 (en) | Fuel cell structure | |
| JP2009041044A (en) | Reaction cell, its production method, and reaction system | |
| KR20040038751A (en) | Solid oxide fuel cells having gas channel | |
| JP4300947B2 (en) | Solid oxide fuel cell | |
| JPH09326259A (en) | Solid electrolyte fuel cell | |
| US9831517B2 (en) | Unit cell of solid oxide fuel cell, stack using the unit cell, and methods of manufacturing the unit cell and the stack | |
| KR100661820B1 (en) | Separator and end-plate of the fuel cell stack | |
| JP2004039573A (en) | Sealing material for low-temperature operation solid oxide fuel cell | |
| JPH0589890A (en) | Cell of solid electrolyte type fuel battery and power generating device using it | |
| KR101174407B1 (en) | Manufacturing method of solid oxide fuel cells | |
| JP2018181745A (en) | Conductive member, electrochemical reaction unit, and electrochemical reaction cell stack | |
| KR101905499B1 (en) | Unit cell module and stack for solid oxide fuel cell | |
| JP5584278B2 (en) | Solid electrolyte fuel cell | |
| JPH07211333A (en) | Solid electrolyte fuel cell | |
| JPH09231987A (en) | Seal structure of solid electrolyte fuel cell and its manufacture | |
| JP2980921B2 (en) | Flat solid electrolyte fuel cell | |
| KR100665391B1 (en) | Advanced Planar Type of Solid Oxide Fuel Cells | |
| US20050003262A1 (en) | Solid-state fuel cell and related method of manufacture | |
| KR101116241B1 (en) | Support and solid oxide fuel cell and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060331 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080626 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080702 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090116 |