JP2569540B2 - Separator for fuel cell - Google Patents

Separator for fuel cell

Info

Publication number
JP2569540B2
JP2569540B2 JP62074514A JP7451487A JP2569540B2 JP 2569540 B2 JP2569540 B2 JP 2569540B2 JP 62074514 A JP62074514 A JP 62074514A JP 7451487 A JP7451487 A JP 7451487A JP 2569540 B2 JP2569540 B2 JP 2569540B2
Authority
JP
Japan
Prior art keywords
gas
passage hole
fuel
fuel gas
oxidizing gas
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 - Lifetime
Application number
JP62074514A
Other languages
Japanese (ja)
Other versions
JPS63241869A (en
Inventor
実 堀田
敏男 広瀬
Original Assignee
石川島播磨重工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 石川島播磨重工業株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP62074514A priority Critical patent/JP2569540B2/en
Publication of JPS63241869A publication Critical patent/JPS63241869A/en
Application granted granted Critical
Publication of JP2569540B2 publication Critical patent/JP2569540B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
    • H01M8/0254—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
    • 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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
    • 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
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • 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
    • H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
    • 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)

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は燃料の有する化学エネルギーを直接電気エネ
ルギーに変換させるエネルギー部門で用いる燃料電池の
セルを積層するときに仕切りとして用いるセパレータに
関するものである。Description: TECHNICAL FIELD The present invention relates to a separator used as a partition when stacking cells of a fuel cell used in an energy sector in which chemical energy of a fuel is directly converted into electric energy. .

［従来の技術］ 現在までに提案されている燃料電池のうち、溶融炭酸
塩型の燃料電池として、たとえば、第５図に示す如く、
電解質として溶融炭酸塩を多孔質物質にしみ込ませたタ
イル（電解質板）１を、カソード（酸素極）２とアノー
ド（燃料極）３の両電極で両面から挾み、カソード２側
に酸化ガスOGを供給すると共にアノード３側に燃料ガス
FGを供給することによりカソード２とアノード３との間
で発生する電位差により発電が行われるようにしたもの
を１セルＩとし、各セルＩをセパレータ４を介して多層
に積層させ、全体を適当な締付力で締め付けて固定させ
るようにしたものがある。そのうち、内部マニホールド
型のものにあっては、図示の如く、タイル１とセパレー
タ４の周辺部の一側に酸化ガスの供給用流路孔５と燃料
ガスの供給用流路孔６を設けると共に、周辺部の他側に
酸化ガスの排出用流路孔７と燃料ガスの排出用流路孔８
を設け、上記酸化ガスと燃料ガスの各供給用流路孔５と
６を通して供給される酸化ガスOGと燃料ガスFGがセパレ
ータ４を挾んでカソード２側とアノード３側へ供給され
るようにしてある。[Prior Art] Among the fuel cells proposed up to now, as a molten carbonate type fuel cell, for example, as shown in FIG.
A tile (electrolyte plate) 1 in which a molten carbonate is impregnated with a porous material as an electrolyte is sandwiched from both sides of a cathode (oxygen electrode) 2 and an anode (fuel electrode) 3 from both sides. And fuel gas on the anode 3 side.
A cell that generates electric power by the potential difference generated between the cathode 2 and the anode 3 by supplying FG is defined as one cell I, and each cell I is laminated in multiple layers via the separator 4 and the whole is appropriately There is one that is fixed by tightening with a sufficient tightening force. Among them, in the case of the internal manifold type, as shown in the figure, an oxidizing gas supply passage hole 5 and a fuel gas supply passage hole 6 are provided on one side of the peripheral portion of the tile 1 and the separator 4. On the other side of the peripheral portion, the oxidizing gas discharge passage hole 7 and the fuel gas discharge passage hole 8
So that the oxidizing gas OG and the fuel gas FG supplied through the respective supply passage holes 5 and 6 for the oxidizing gas and the fuel gas are supplied to the cathode 2 side and the anode 3 side with the separator 4 interposed therebetween. is there.

［発明が解決しようとする問題点］ ところが、従来の燃料電池を積層してスタックとする
ときに用いられているセパレータ４は、片面に燃料ガス
を、他面に酸化ガスをそれぞれ流すようにするために、
両面にガス通路を凹凸によって形成し、且つ、燃料ガス
と酸化ガスを表裏両面で別々に流すように片面では燃料
ガス給排用流路孔とガス通路とが連通し、又、他面では
酸化ガス給排用流路孔とガス通路とが連通するようにし
てあるが、積層したときの周辺部のシールが不充分であ
ると、供給用流路孔側や排出用流路孔側で酸化ガスと燃
料ガスが内部リークして接触する事態が生じる。上記内
部リークで両ガスが接触すると、内部で部分燃焼する
か、爆発のおそれがある。[Problems to be Solved by the Invention] However, the separator 4 used when stacking conventional fuel cells to form a stack is such that fuel gas flows on one side and oxidizing gas flows on the other side. for,
A gas passage is formed on both sides by irregularities, and the fuel gas supply / discharge passage hole and the gas passage communicate on one side so that the fuel gas and the oxidizing gas flow separately on the front and back sides. The gas supply / discharge passage hole and the gas passage are communicated with each other.However, if the peripheral portion is not sufficiently sealed at the time of lamination, the gas is oxidized on the supply passage hole side and the discharge passage hole side. A situation occurs in which the gas and the fuel gas come into contact due to internal leakage. If the two gases come into contact with each other due to the internal leak, there is a risk of partial combustion or explosion.

そこで、本発明は、一方のガスが内部リークしたとき
他方のガスと接触させないように外部へ導くようにして
内部リークによる部分燃焼、タイルの割れ等を防止し、
電池性能を高く維持することができるようにしようとす
るものである。Therefore, the present invention, when one gas leaks internally, leads to the outside so that it does not come into contact with the other gas to prevent partial combustion due to internal leak, cracking of tiles, etc.
It is intended to maintain high battery performance.

［問題点を解決するための手段］ 本発明は、上記目的を達成するために、周辺部の一側
と他側に酸化ガスと燃料ガスの各供給用流路孔と排出用
流路孔を設け、且つ表裏両面に別々のガス通路を形成
し、片面のガス通路と燃料ガスの給排用流路孔とを連通
させると共に他面のガス通路と酸化ガスの給排用流路孔
とを連通させた燃料電池セパレータにおいて、表面側と
裏面側の各周辺部の一側における酸化ガスの流路孔と燃
料ガスの流路孔の間と、周辺部の他側における酸化ガス
の流路孔と燃料ガスの流路孔の間に、ガスを通過させ得
る内部リーク防止溝をそれぞれ設けて、該各内部リーク
防止溝を外部まで導設し、内部リークしたガスが他のガ
スと接触することなく内部リーク防止溝を経由して外部
へ流出するようにした。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a flow path hole for supply and a flow path hole for discharge of oxidizing gas and fuel gas on one side and the other side of a peripheral portion. In addition, separate gas passages are formed on both front and back surfaces, and the gas passage on one side communicates with the supply / discharge passage hole for fuel gas, and the gas passage on the other surface and the supply / discharge passage hole for the oxidizing gas communicate with each other. In the connected fuel cell separator, between the oxidizing gas flow path hole and the fuel gas flow path hole on one side of each peripheral part on the front side and the back side, and the oxidizing gas flow path hole on the other side of the peripheral part Between the fuel gas flow path holes and the internal leak prevention grooves through which the gas can pass, and guide the internal leak prevention grooves to the outside so that the internally leaked gas comes into contact with another gas. Instead of flowing through the internal leak prevention groove.

［作用］ 燃料ガス又は酸化ガスの一方が内部リークすると、外
部へ通じる内部リーク防止溝内を通過して外部へ流れる
ため、両ガスが直接混合する内部リーク防ぐことができ
る。これにより内部リークによる部分燃焼のおそれがな
くなる。[Operation] When one of the fuel gas and the oxidizing gas leaks internally, the fuel gas flows through the internal leak prevention groove leading to the outside and flows to the outside, so that the internal leak in which both gases are directly mixed can be prevented. This eliminates the risk of partial combustion due to internal leaks.

［実施例］ 以下、本発明の実施例を図面を参照して説明する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

第１図乃至第３図は本発明の一実施例を示すもので、
全面をコルゲート状にし且つ周辺部の一側に酸化ガスの
供給用流路孔５と燃料ガスの供給用流路孔６とを設ける
と共に周辺部の他側に酸化ガスの排出用流路孔７と燃料
ガスの排出用流路孔８とを設け、更に、中央部分と上記
給排用流路孔側部分にガスを均一に流すための通路9,10
を表裏に形成している１枚のコルゲート板11と、該コル
ゲート板11と同じ大きさとして周辺部の一側と他側に酸
化ガスと燃料ガスの各給排用流路孔5,7と6,8をコルゲー
ト板11のそれに対応させて設けると共に中央部に電極の
大きさ分の切抜部13を形成したマスクとしての２枚の枠
板12aと12bとを備え、上記コルゲート板11の両面を上記
枠板12aと12bで挾み、両者間の必要個所を充填物14によ
り閉塞させてシールする。すなわち、燃料ガスの供給用
流路孔６を流れる燃料ガスFGがコルゲート板11の片面
（表面）を、又、酸化ガスの供給用流路孔５を流れる酸
化ガスOGがコルゲート板11の他面（裏面）をそれぞれ流
されるようにするため、コルゲート板11の片面では、燃
料ガスの給排用流路孔６と８のみが連通するようにして
その他の部分の周辺部分に充填物14を施こし、コルゲー
ト板11と枠板12aとを気密に接合するようにし、コルゲ
ート板11の他面では、酸化ガスの給排用流路孔５と７の
みが連通するようにしてその他の部分の周辺部分を充填
物14にて閉塞してシールするようにする。更に、上記２
枚の枠板12aと12bの各周辺部の酸化ガスの給排用流路孔
5,7と燃料ガスの給排用流路孔6,8との間に、本発明の特
徴をなすガス通過用の溝を内部リーク防止溝15として設
け、該溝15を枠板12a,12bの各周辺部まで延長させて、
内部リークしたガスが他のガスと接触することなく内部
リーク防止溝15を経由して外部へ流出されるようにす
る。1 to 3 show an embodiment of the present invention.
The entire surface is corrugated, and an oxidizing gas supply passage hole 5 and a fuel gas supply passage hole 6 are provided on one side of the peripheral portion, and an oxidizing gas discharge passage hole 7 is provided on the other side of the peripheral portion. And a flow path hole 8 for discharging the fuel gas, and further, passages 9 and 10 for uniformly flowing the gas to the central portion and the side of the supply / discharge flow path hole.
One corrugated plate 11 formed on the front and back, and the same size as the corrugated plate 11, and one side and the other side of the peripheral portion are provided with supply and discharge passage holes 5 and 7 for oxidizing gas and fuel gas. 6 and 8 are provided corresponding to those of the corrugated plate 11, and two frame plates 12a and 12b are provided as masks in which a cutout portion 13 having a size corresponding to the size of the electrode is formed in the center portion. Is sandwiched between the frame plates 12a and 12b, and a necessary portion between the two is closed and sealed by the filler 14. That is, the fuel gas FG flowing through the fuel gas supply passage hole 6 is on one side (front surface) of the corrugated plate 11, and the oxidizing gas OG flowing through the oxidizing gas supply passage hole 5 is on the other surface. In order to allow the (back) surface to flow, the filler 14 is applied to one side of the corrugated plate 11 so that only the fuel gas supply / discharge passage holes 6 and 8 communicate with each other and around the other portion. In this way, the corrugated plate 11 and the frame plate 12a are joined in an airtight manner, and on the other surface of the corrugated plate 11, only the oxidizing gas supply / discharge passage holes 5 and 7 are communicated with each other so as to surround the other portions. The portion is closed and sealed with the filling material 14. Furthermore, the above 2
Oxidizing gas supply / discharge flow passage holes in the peripheral portions of the frame plates 12a and 12b
A groove for gas passage, which is a feature of the present invention, is provided as an internal leak prevention groove 15 between the fuel gas supply / discharge passage holes 6, 8 and the fuel gas supply / discharge passage holes 6, 8, and the groove 15 is provided with frame plates 12a, 12b. To each peripheral part of
The gas leaked inside is allowed to flow out through the internal leak prevention groove 15 to the outside without coming into contact with another gas.

上記コルゲート板11と２枚の枠板12a,12bとの重合部
の接合に用いる充填材14としては、耐熱シールセメン
ト，ジルコニア（Zr2O3）に炭酸塩を含浸させたもの、
その他高温でも充填部から溶出しないで保持できるよう
なものを使用する。As the filler 14 used for joining the overlapped portion between the corrugated plate 11 and the two frame plates 12a and 12b, heat-resistant seal cement, zirconia (Zr 2 O 3 ) impregnated with carbonate,
In addition, a material that can be retained without being eluted from the filling portion even at a high temperature is used.

本発明のセパレータを用いて燃料電池スタックを組み
立てるときは、第５図に示した場合と同様にタイル１を
カソード２とアノード３で挾んでなる燃料電池の１セル
を、本発明の内部リーク防止溝15付きのセパレータを介
して多層に積層し、全体を所定の締付力で締め付けて一
体化させる。When assembling a fuel cell stack using the separator of the present invention, one cell of the fuel cell in which the tile 1 is sandwiched between the cathode 2 and the anode 3 as shown in FIG. The layers are laminated in multiple layers via the separator having the groove 15, and the whole is tightened with a predetermined tightening force to be integrated.

酸化ガス供給用流路孔５に酸化ガスを流し、燃料ガス
供給用流路孔６に燃料ガスを流すと、各段のセルごとに
燃料ガスFGは供給用流路孔６からコルゲート板11と枠板
12aとの重合部の隙間16（第２図（Ａ）、第４図参照）
を通ってコルゲート板11中央部へ横方向の通路９を経て
コルゲートによるガス通路へ均一に導かれ、中央部の通
路９や排出用流路孔８側の通路９より排出用流路孔８に
導かれ、ここから排出される。一方、酸化ガスOGは供給
用流路孔５からコルゲート板11と枠板12bとの重合部の
隙間17（第２図（Ａ）、第４図参照）を通ってコルゲー
ト板11の裏面に導かれ、コルゲート板11に形成された横
方向に延びる通路10により均一に分配されながら反対側
の排出用流路孔７を経て排出される。When the oxidizing gas flows through the oxidizing gas supply passage hole 5 and the fuel gas flows through the fuel gas supply passage hole 6, the fuel gas FG is supplied from the supply passage hole 6 to the corrugated plate 11 through the supply passage hole 6 at each cell. Frame board
The gap 16 between the overlapped portion and the portion 12a (see FIGS. 2 (A) and 4)
Through the passage 9 in the lateral direction to the central part of the corrugated plate 11 to the gas passage formed by the corrugate, and from the passage 9 in the central part and the passage 9 on the discharge passage hole 8 side to the discharge passage hole 8. Guided and discharged from here. On the other hand, the oxidizing gas OG is guided from the supply passage hole 5 to the back surface of the corrugated plate 11 through the gap 17 (see FIGS. 2A and 4) between the overlapping portions of the corrugated plate 11 and the frame plate 12b. Then, while being uniformly distributed by the laterally extending passages 10 formed in the corrugated plate 11, they are discharged through the discharge passage holes 7 on the opposite side.

酸化ガスと燃料ガスが上記のように各段ごとにコルゲ
ート板11の両面を別々に流される際に、周辺部の充填材
14によるシール部から酸化ガスと燃料ガスの一方がリー
クして電池内で両ガスが混合することになると、部分燃
焼等を生じるおそれがあるが、本発明のセパレータで
は、酸化ガス、燃料ガスの一方が内部リークして他のガ
スと混合しようとしても、リークしたガスは内部リーク
防止溝15内に入り、該溝15に沿って外部へ流し、外部で
燃焼させる。これにより電池内で両ガスが直接接触し混
合するような内部リークを防止することができる。When the oxidizing gas and the fuel gas flow separately on both sides of the corrugated plate 11 for each stage as described above,
When one of the oxidizing gas and the fuel gas leaks from the seal portion by 14 and the two gases are mixed in the battery, there is a possibility that partial combustion or the like may occur, but in the separator of the present invention, the oxidizing gas and the fuel gas Even if one leaks internally and tries to mix with the other gas, the leaked gas enters the internal leak prevention groove 15, flows along the groove 15 to the outside, and burns outside. This can prevent an internal leak in which both gases come into direct contact and mix in the battery.

なお、本発明は上記実施例に限定されるものではな
く、たとえば、枠板12a,12bの各周辺部に設けた溝15に
より酸化ガスと燃料ガスの各内部マニホールド部を分割
して別体とした場合を示したが、別体にしないで凹溝を
設けた構成としてもよく、又、酸化ガスと燃料ガスが並
流となるようにした場合を示したが、セパレータを挾ん
で対向流となるようにしてもよく、更に、セパレータと
しては図示のコルゲート板11と枠板12a,12bを組み合わ
せ、周辺部の必要個所を、充填物14を用いてウエットシ
ール部とした場合に代えて、一枚のプレートをプレス成
形したり、エッチングの如き金属表面加工により成形し
たりしたものでもよく、その他本発明の要旨を逸脱しな
い範囲内で種々の変更を加え得ることは勿論である。Note that the present invention is not limited to the above-described embodiment.For example, each internal manifold portion of the oxidizing gas and the fuel gas is divided by a groove 15 provided in each peripheral portion of the frame plates 12a and 12b to separate them. Although a configuration was shown in which a groove was provided instead of a separate body, and a case where the oxidizing gas and the fuel gas were made to flow in parallel was shown, In addition, instead of the case where the corrugated plate 11 and the frame plates 12a and 12b are combined as a separator, and a necessary portion of the peripheral portion is replaced with a wet seal portion by using a filler 14, instead of a separator, The plates may be press-formed or formed by metal surface processing such as etching, and it is needless to say that various changes can be made without departing from the gist of the present invention.

［発明の効果］ 以上述べた如く、本発明の燃料電池用セパレータによ
れば、周辺部の一側と他側に酸化ガス、燃料ガスの給排
用流路孔を有し、表面側と裏面側の各周辺部の一側にお
ける酸化ガスの流路孔と燃料ガスの流路孔との間と、周
辺部の他側における酸化ガスの流路孔と燃料ガスの流路
孔の間に、いずれか一方のガスがリークして他のガスと
混合するのを防止するための内部リーク防止溝をそれぞ
れ設け、該溝をセパレータの外部へ導いて、内部リーク
したガスを外部へ流出させるようにしてあるので、電池
内で酸化ガスと燃料ガスが直接混合するような内部リー
クを防止することができ、内部リークによる部分燃焼を
防止できると共にタイルの割れ等も防止でき、電池性能
を高く維持することができる、という優れた効果を奏し
得る。[Effects of the Invention] As described above, according to the fuel cell separator of the present invention, the oxidizing gas and fuel gas supply / discharge passage holes are provided on one side and the other side of the peripheral portion, and the front side and the back side Between the flow hole for the oxidizing gas and the flow hole for the fuel gas on one side of each peripheral portion of the side, and between the flow hole for the oxidizing gas and the flow hole for the fuel gas on the other side of the peripheral portion, An internal leak preventing groove for preventing any one gas from leaking and mixing with the other gas is provided, and the groove is guided to the outside of the separator so that the gas leaked from the inside flows out. As a result, it is possible to prevent internal leaks such as oxidizing gas and fuel gas being directly mixed in the battery, prevent partial combustion due to the internal leaks, prevent tile cracking, etc., and maintain high battery performance. Can have an excellent effect of being able to .

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明のセパレータの一例を示す平面図、第２
図（Ａ）は第１図の斜視図、第２図（Ｂ）は第２図
（Ａ）のII部の拡大図、第３図は第１図のセパレータを
分離して示す斜視図、第４図は第２図（Ａ）のIV-IV矢
視図、第５図は従来の溶融炭酸塩型燃料電池の一例を示
す断面図である。 １……タイル、２……カソード、３……アノード、４…
…セパレータ、５……酸化ガス供給用流路孔、６……燃
焼ガス供給用流路孔、７……酸化ガス排出用流路孔、８
……燃料ガス排出用流路孔、11……コルゲート板、12a,
12b……枠板、14……充填物、15……内部リーク防止
溝、16,17……隙間。FIG. 1 is a plan view showing an example of the separator of the present invention, and FIG.
FIG. 1A is a perspective view of FIG. 1, FIG. 2B is an enlarged view of a portion II in FIG. 2A, FIG. 3 is a perspective view showing the separator of FIG. FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2 (A), and FIG. 5 is a sectional view showing an example of a conventional molten carbonate fuel cell. 1 ... tile, 2 ... cathode, 3 ... anode, 4 ...
... Separator, 5 ... Oxidizing gas supply passage hole, 6 ... Combustion gas supply passage hole, 7 ... Oxidation gas discharge passage hole, 8
…… Fuel gas discharge passage hole, 11 …… Corrugated plate, 12a,
12b ... frame plate, 14 ... filler, 15 ... internal leak prevention groove, 16, 17 ... gap.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】周辺部の一側と他側に酸化ガスと燃料ガス
の各供給用流路孔と排出用流路孔を設け、且つ表裏両面
に別々のガス通路を形成し、片面のガス通路と燃料ガス
の給排用流路孔とを連通させると共に他面のガス通路と
酸化ガスの給排用流路孔とを連通させた燃料電池用セパ
レータにおいて、表面側と裏面側の各周辺部の一側にお
ける酸化ガスの流路孔と燃料ガスの流路孔の間と、周辺
部の他側における酸化ガスの流路孔と燃料ガスの流路孔
の間に、ガスを通過させ得る内部リーク防止溝をそれぞ
れ設けて、該各内部リーク防止溝を外部まで導設し、内
部リークしたガスが他のガスと接触することなく内部リ
ーク防止溝を経由して外部へ流出するようにした構成を
有することを特徴とする燃料電池用セパレータ。An oxidizing gas and a fuel gas supply passage hole and a discharge passage hole are provided on one side and the other side of a peripheral portion, and separate gas passages are formed on both front and back surfaces to form a single-sided gas passage. In the fuel cell separator in which the passage communicates with the fuel gas supply / discharge flow passage hole and the other surface gas passage communicates with the oxidizing gas supply / discharge flow passage hole, the periphery of the front surface side and the back surface side The gas can be passed between the oxidizing gas passage hole and the fuel gas passage hole on one side of the portion and between the oxidizing gas passage hole and the fuel gas passage hole on the other side of the peripheral portion. Each of the internal leak preventing grooves is provided, and each of the internal leak preventing grooves is guided to the outside, so that the gas leaked internally flows out to the outside via the internal leak preventing groove without contacting other gas. A fuel cell separator having a configuration.
JP62074514A 1987-03-30 1987-03-30 Separator for fuel cell Expired - Lifetime JP2569540B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62074514A JP2569540B2 (en) 1987-03-30 1987-03-30 Separator for fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62074514A JP2569540B2 (en) 1987-03-30 1987-03-30 Separator for fuel cell

Publications (2)

Publication Number Publication Date
JPS63241869A JPS63241869A (en) 1988-10-07
JP2569540B2 true JP2569540B2 (en) 1997-01-08

Family

ID=13549517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62074514A Expired - Lifetime JP2569540B2 (en) 1987-03-30 1987-03-30 Separator for fuel cell

Country Status (1)

Country Link
JP (1) JP2569540B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045413A (en) * 1989-05-03 1991-09-03 Institute Of Gas Technology Fully internal mainfolded fuel cell stack
US5077148A (en) * 1989-05-03 1991-12-31 Institute Of Gas Technology Fully internal manifolded and internal reformed fuel cell stack
PT95125A (en) * 1990-04-10 1992-03-31 Inst Gas Technology ASSEMBLY OF COMBUSTIBLE BATTERIES WITH FULLY INTERNAL PIPES

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913637A (en) * 1972-03-24 1974-02-06

Also Published As

Publication number Publication date
JPS63241869A (en) 1988-10-07

Similar Documents

Publication Publication Date Title
JPWO2005104287A1 (en) Fuel cell module
JPH084008B2 (en) Separator for fuel cell
JP2768698B2 (en) Internal manifold type molten carbonate fuel cell
JP2569540B2 (en) Separator for fuel cell
KR20200087154A (en) Unit cell for fuel cell assembly and fuel cell stack
JPH0421988B2 (en)
JP2569541B2 (en) Separator for fuel cell
JP2554114B2 (en) Fuel cell separator
JP2005216869A (en) Fuel cell or separator
JPH04149966A (en) Solid electrolyte-type fuel battery
JP2005174716A (en) Solid electrolyte fuel cell
JPS6010564A (en) Seal structure for fuel cell
JPH08273695A (en) Fuel cell
JP2743498B2 (en) Fuel cell separator
JPH07161365A (en) Separator for fuel cell
JPH01211863A (en) Separator for fuel cell
JPH0615402Y2 (en) Fuel cell
JPH09147890A (en) Solid electrolyte fuel cell
JPS6276259A (en) Separator for fuel cell
JPS61243660A (en) Fuel cell
JPH01189868A (en) Fuel cell
JPH06342664A (en) Method for reforming inside of flat solid electrolyte fuel cell having internal manifold structure using compound separator of heat resistant metal plate and oxide plate
JPH0727564Y2 (en) Fuel cell
JPS59111269A (en) Layer-built fuel cell
JPH01120773A (en) Separator for fuel cell