JP2569541B2 - Separator for fuel cell - Google Patents

Separator for fuel cell

Info

Publication number
JP2569541B2
JP2569541B2 JP62074515A JP7451587A JP2569541B2 JP 2569541 B2 JP2569541 B2 JP 2569541B2 JP 62074515 A JP62074515 A JP 62074515A JP 7451587 A JP7451587 A JP 7451587A JP 2569541 B2 JP2569541 B2 JP 2569541B2
Authority
JP
Japan
Prior art keywords
corrugated plate
oxidizing gas
fuel gas
supply
gas supply
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
JP62074515A
Other languages
Japanese (ja)
Other versions
JPS63241870A (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 JP62074515A priority Critical patent/JP2569541B2/en
Publication of JPS63241870A publication Critical patent/JPS63241870A/en
Application granted granted Critical
Publication of JP2569541B2 publication Critical patent/JP2569541B2/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
    • H01M8/24—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
    • 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
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • 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
    • H01M8/02—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
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • 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
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M2008/147—Fuel cells with molten carbonates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0048—Molten electrolytes used at high temperature
    • H01M2300/0051—Carbonates
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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に
おいて積層するときに各セルごとに仕切るために用いる
セパレータ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 separator used for partitioning each cell when stacking in a fuel cell used in an energy sector in which chemical energy of a fuel is directly converted into electric energy. Things.

［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は、たとえば、第４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, a molten carbonate type fuel cell is, for example, as shown in FIG. 4, a tile in which a molten carbonate is impregnated into a porous material as an electrolyte. (Electrolyte plate) 1 is sandwiched between cathode (oxygen electrode) 2 and anode (fuel electrode) 3 from both sides, and oxidizing gas OG is supplied to cathode 2 and fuel gas FG is supplied to anode 3. Thus, a cell that generates electric power by a potential difference generated between the cathode 2 and the anode 3 is defined as one cell I, and the cells I are stacked in multiple layers via the separator 4, and the whole is appropriately tightened. There is one that is fixed by tightening it. 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. An oxidizing gas discharge passage hole 7 and a fuel gas discharge passage hole 8 are provided on the other side of the peripheral portion, and the oxidizing gas supplied through the oxidizing gas and fuel gas supply passage holes 5 and 6 is provided. The gas OG and the fuel gas FG are supplied to the cathode 2 side and the anode 3 side with the separator 4 interposed therebetween.

上記燃料電池に用いられているセパレータ４として
は、第５図に示す如く、周辺部の一側に酸化ガスと燃料
ガスの各供給用流路孔５と６を設けると共に、周辺部の
他側に酸化ガスと燃料ガスの各排出用流路孔7,8を設
け、かかる周辺部を除く内部に凹凸によるガス通路９を
形成させてセルＩを挾んで流れる酸化ガスと燃料ガスが
各層とも同じ方向となるようにしたものが通常であり、
酸化ガスOG及び燃料ガスFGをセパレータ４の両面に沿い
流すようにするため、アノード側流路スペーサ10a及び
カソード側流路スペーサ10bをセパレータ４の周辺部両
面に重ね合わせて使用するようにしてある。As shown in FIG. 5, the separator 4 used in the fuel cell is provided with flow passage holes 5 and 6 for supplying oxidizing gas and fuel gas on one side of the peripheral portion, and on the other side of the peripheral portion. The oxidizing gas and the fuel gas flowing through the cell I are the same in each layer by forming the gas passages 9 formed by unevenness in the inside except for the peripheral portion. Normally, the direction is
In order to allow the oxidizing gas OG and the fuel gas FG to flow along both surfaces of the separator 4, the anode-side flow path spacer 10 a and the cathode-side flow path spacer 10 b are used by being superimposed on both sides of the peripheral portion of the separator 4. .

［発明が解決しようとする問題点］ ところが、従来の燃料電池用セパレータでは、周辺部
を除くガス通路９部はプレス成形し、且つ周辺部では表
裏両面に重合させたスペーサ10aと10bをロウ付け又は溶
接にて一体的に固定し、スペーサ10a,10b付きのセパレ
ータ４を、タイル１とカソード２及びアノード３の各電
極とからなるセルＩを積層するときに仕切板として使用
しているため、大型のセパレータを製作しようとする場
合に、ロウ付けの場合は設備の関係で大型化することに
限度があると共にコスト高となり、又、溶接の場合はセ
パレータが大型化すればするほど熱歪が生じ易くなり、
従来の方式では大型のものを製作する場合に問題があっ
た。[Problems to be Solved by the Invention] However, in the conventional fuel cell separator, 9 parts of the gas passage except for the peripheral part are press-formed, and in the peripheral part, spacers 10a and 10b which are superimposed on both front and back surfaces are brazed. Alternatively, since the separator 4 with the spacers 10a and 10b is integrally fixed by welding and is used as a partition plate when the cell I composed of the tile 1 and each electrode of the cathode 2 and the anode 3 is laminated, When a large separator is to be manufactured, there is a limit to increasing the size due to equipment in the case of brazing and the cost is high, and in the case of welding, the larger the separator is, the higher the thermal strain is. More likely to occur,
The conventional method has a problem when manufacturing a large-sized one.

そこで、本発明は、溶接等を不要にすると共に大型の
ものを容易に製作できるようにした燃料電池用セパレー
タを提供しようとするものである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fuel cell separator that does not require welding or the like and that can be easily manufactured in a large size.

［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、全面をコルゲ
ート状にして周辺部の一側と他側に酸化ガスと燃料ガス
の各給排用流路孔を設け且つ中央部分と該各ガスの給排
用流路孔側部分にガスを均一に流すための通路を表裏に
形成した１枚のコルゲート板と、中央部を電極の大きさ
分の切抜部を有し且つ周辺部に上記酸化ガスと燃料ガス
の各給排用流路孔に対応させて同じ流路孔を設けた２枚
の枠板とを備え、上記１枚のコルゲート板を両面から上
記２枚の枠板で挾み、該コルゲート板の周辺部に２枚の
枠板の周辺部を重合し、コルゲート板周辺部の酸化ガス
の給排用流路孔と２枚の枠板周辺部の酸化ガスの給排用
流路孔とを連通させるようにすると共に、コルゲート板
周辺部の燃料ガスの給排用流路孔と２枚の枠板周辺部の
燃料ガスの給排用流路孔とを連通させるようにし、且つ
コルゲート板の片面側では燃料ガスの給排用流路孔のみ
が連通するようにしてその他の部分のコルゲート板と枠
板の重合部では両者間の隙間を接合材としての充填物に
て接合してシールし、同様にコルゲート板の反対面側で
は酸化ガスの給排用流路孔のみが連通するようにしてそ
の他の部分のコルゲート板と枠板の重合部では両者間の
隙間を接合材としての充填物にて接合してシールしてな
る構成とする。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a corrugated whole surface, and a supply / discharge channel hole for oxidizing gas and fuel gas on one side and the other side of a peripheral portion. A corrugated plate having a central portion and a passage for uniformly flowing gas to the gas supply / discharge passage hole side portion of each gas on the front and back, and a cutout portion corresponding to the size of the electrode at the central portion And two frame plates provided in the periphery with the same flow passage holes corresponding to the respective supply and discharge flow passage holes for the oxidizing gas and the fuel gas. The two frame plates are sandwiched, and the peripheral portions of the two frame plates are superimposed on the peripheral portion of the corrugated plate. The oxidizing gas supply / discharge passage holes of the corrugated plate are connected to each other, and the fuel gas supply / discharge passage holes around the corrugated plate and the two The fuel gas supply / discharge flow path holes around the frame plate are communicated with each other, and only the fuel gas supply / discharge flow path holes are communicated on one side of the corrugated plate. In the overlapping portion of the frame plate and the frame plate, the gap between the two is joined and sealed with a filler as a joining material, and similarly, on the opposite surface side of the corrugated plate, only the oxidizing gas supply / discharge flow path holes communicate with each other. In the other portion of the overlapping portion of the corrugated plate and the frame plate, the gap between the two is joined and sealed with a filler as a joining material.

［作用］ タイルをカソードとアノードで挾んでなるセルを積層
する際に仕切板として介在させ、酸化ガスならびに燃料
ガスを供給すると、コルゲート板の片面側では燃料ガス
の給排用流路孔のみが連通するようにしてその他の部分
のコルゲート板と枠板の重合部は接合材としての充填物
にて接合してシールしてあるので、燃料ガスは供給用流
路孔からコルゲート板と枠板との間の隙間を通って片面
のガス通路に導かれ、一方、コルゲート板の反対面側で
は酸化ガスの給排用流路孔のみが連通するようにしてそ
の他のコルゲート板と枠板との重合部は接合材としての
充填物にて接合してシールしてあるので、酸化ガスは供
給用流路孔からコルゲート板と枠板との間の隙間を通っ
て反対面のガス通路に導かれ、コルゲート板を挾んで酸
化ガスと燃料ガスが並流又は対向流として流されること
になる。[Function] When oxidizing gas and fuel gas are supplied by interposing a partition plate when stacking a cell in which a tile is sandwiched between a cathode and an anode, only a fuel gas supply / discharge passage hole is formed on one side of the corrugated plate. The overlapped portion of the corrugated plate and the frame plate in the other part is connected and sealed with a filler as a bonding material so that the fuel gas flows from the supply passage hole to the corrugated plate and the frame plate. Through the gap between the corrugated plates, and on the other side of the corrugated plate, only the oxidizing gas supply / discharge passage holes communicate with each other, so that the other corrugated plate and the frame plate overlap. Since the part is bonded and sealed with a filler as a bonding material, the oxidizing gas is guided from the supply channel hole to the gas passage on the opposite surface through the gap between the corrugated plate and the frame plate, Oxidizing gas and fuel across the corrugated plate The feed gas will flow as co-current or counter-current.

［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16,1
7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。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。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 16 and 1 for uniformly flowing the gas to the central portion and the side of the supply / discharge flow path hole.
7 is formed on the front and back, and one corrugated plate 11 having the same size as the corrugated plate 11 is provided on one side and the other side of the peripheral part with supply and discharge flow holes 5, 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 13 having a size corresponding to the size of the electrode is formed in the center portion. Both sides are sandwiched between the frame plates 12a and 12b, and a necessary portion between the two is closed and sealed with a filler. 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. Then, the corrugated plate 11 and the frame plate 12a are air-tightly joined. Corrugated board 11
On the other side, only the oxidizing gas supply / discharge flow passage holes 5 and 7 are communicated with each other, and the peripheral portion of the other portion is closed and sealed with the filler 14.

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、
その他高温でも溶出しないでコルゲート板と枠板との間
に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 between the corrugated plate and the frame plate without elution even at a high temperature is used.

コルゲート板11の片面では、燃料ガス供給用流路孔６
より供給される燃料ガスFGが、該流路孔６からコルゲー
ト板11と枠板12aとの重合部の隙間を通ってガス通路15
に導かれ、横方向に延びる通路16を経てコルゲートによ
るガス通路へ均一に導かれ、途中の各通路16により均一
に流されながら排出用流路孔８に入って排出される。コ
ルゲート板11の反対側の面では、酸化ガス供給用流路孔
５より供給される酸化ガスOGが、該供給用流路孔５から
ガス通路15へ導かれて裏面の通路17にて分配されながら
流され、反対側の排出用流路孔７より排出される。On one side of the corrugated plate 11, the fuel gas supply passage holes 6 are formed.
The fuel gas FG supplied from the gas passage 15 passes from the passage hole 6 through the gap between the overlapping portions of the corrugated plate 11 and the frame plate 12a.
Through the passage 16 extending in the lateral direction, is uniformly guided to the gas passage by the corrugate, and is uniformly discharged by the passages 16 on the way, enters the discharge passage hole 8 and is discharged. On the surface on the opposite side of the corrugated plate 11, the oxidizing gas OG supplied from the oxidizing gas supply passage hole 5 is guided from the supply passage hole 5 to the gas passage 15 and distributed through the passage 17 on the back surface. While being discharged while being discharged from the discharge passage hole 7 on the opposite side.

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４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、本発明のコルゲート板11と２枚の枠板12a,12bから
なり周辺部の必要個所を充填物14でシール効果をもたせ
てなるセパレータを介して多層に積層させ、全体を所定
の締付力で締め付けて一体化させる。これにより格段の
セルごとに本発明のセパレータによりカソード側には酸
化ガスが、又、アノード側には燃料ガスがそれぞれコル
ゲート板11のガス通路によって供給される。When assembling the 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 in the case shown in FIG. And two frame plates 12a and 12b, and a necessary portion in the peripheral portion is laminated in multiple layers via a separator having a sealing effect with the filler 14, and the whole is fastened with a predetermined fastening force to be integrated. Thereby, the oxidizing gas is supplied to the cathode side and the fuel gas is supplied to the anode side through the gas passage of the corrugated plate 11 by the separator of the present invention for each remarkable cell.

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、周辺部の一側に酸化ガス及び燃料ガスの
各供給用流路孔を設け、周辺部の他側に酸化ガス及び燃
料ガスの各排出用流路孔を設け、酸化ガスと燃料ガスが
並流となる場合を示したが、かかるガスの流れ方向が対
向流となるようにしてもよく、又、コルゲート板11の波
形状は円弧の凹凸としたが、角形の凹凸形状としてもよ
く、更にコルゲート板11は全面をコルゲート状にした場
合を示したが、ガス通路15の部分ではガスの流れが拡散
されなるようにしてもよい。Note that the present invention is not limited to the above-described embodiment. For example, each supply passage hole for the oxidizing gas and the fuel gas is provided on one side of the peripheral portion, and the oxidizing gas and the fuel gas are provided on the other side of the peripheral portion. Each of the exhaust passage holes is provided, and the case where the oxidizing gas and the fuel gas flow in parallel is shown. However, the flow direction of the gas may be a counter flow, and the corrugated plate 11 may have a corrugated shape. Is an arc-shaped unevenness, but may be a square uneven shape.Also, the corrugated plate 11 shows a case where the entire surface is formed in a corrugated shape.However, even when the gas flow is diffused in the gas passage 15 part. Good.

［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、全面をコルゲート状に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を設け且つ中央部
分と該各ガスの給排用流路孔側部分にガスを均一に流す
ための通路を表裏に形成した１枚のコルゲート板と、中
央部を電極の大きさ分の切抜部を有し且つ周辺部に上記
酸化ガスと燃料ガスの各給排用流路孔に対応させて同じ
流路孔を設けた２枚の枠板とを備え、上記１枚のコルゲ
ート板を両面から上記２枚の枠板で挾み、該コルゲート
板の周辺部に２枚の枠板の周辺部を重合し、コルゲート
板周辺部の酸化ガスの給排用流路孔と２枚の枠板周辺部
の酸化ガスの給排用流路孔とを連通させるようにすると
共に、コルゲート板周辺部の燃料ガスの給排用流路孔と
２枚の枠板周辺部の燃料ガスの給排用流路孔とを連通さ
せるようにし、且つコルゲート板の片面側では燃料ガス
の給排用流路孔のみが連通するようにしてその他の部分
のコルゲート板と枠板の重合部では両者間の隙間を接合
材としての充填物にて接合してシールし、同様にコルゲ
ート板の反対面側では酸化ガスの給排用流路孔のみが連
通するようにしてその他の部分のコルゲート板と枠板の
重合部では両者間の隙間を接合材としての充填物にて接
合してシールしてなる構成としてあるので、次の如き優
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 entire surface is made corrugated, and the supply and discharge passage holes for the oxidizing gas and the fuel gas are formed on one side and the other side of the peripheral portion. A corrugated plate having a central portion and a passage for uniformly flowing gas to the gas supply / discharge passage hole side portion of each gas on the front and back, and a cutout portion corresponding to the size of the electrode at the central portion. And two frame plates provided in the periphery with the same flow passage holes corresponding to the respective supply and discharge flow passage holes for the oxidizing gas and the fuel gas. It is sandwiched between two frame plates, and the peripheral portions of the two frame plates are superimposed on the peripheral portion of the corrugated plate. The oxidizing gas supply / discharge passage hole is communicated with the fuel gas supply / discharge passage hole around the corrugated plate. And the other side of the corrugated plate, so that only the fuel gas supply / discharge passage hole communicates with one side of the corrugated plate. In the overlapping portion of the plate and the frame plate, the gap between the two is bonded and sealed with a filler as a bonding material, and similarly, on the opposite side of the corrugated plate, only the oxidizing gas supply / discharge passage holes communicate with each other. Since the other portion of the overlapped portion of the corrugated plate and the frame plate is formed by sealing the gap therebetween by filling with a filler as a bonding material, the following excellent effects can be obtained.

（ｉ） プレス成形による従来のセパレータに比してコ
ルゲート板は製作が容易であり、大型化してもコルゲー
ト板の製作が容易で、セパレータの大型化を容易に達成
できる。(I) Compared with a conventional separator formed by press molding, the corrugated plate is easy to manufacture, and even if the size is increased, the corrugated plate is easily manufactured, and the separator can be easily enlarged.

（ii） コルゲート板と枠板の接合は充填物を詰めるこ
とにより行うので、ロウ付けや溶接が不要であり、ロウ
付けの場合の大型化の障害とコストアップの問題を避け
得られると共に、溶接による歪の問題も解消でき、更
に、コルゲート板と枠板との間の隙間を大きくして充填
物を用いて接合することから、シール性を向上でき且つ
枠板の平坦度精度の要求を緩和できる。(Ii) Since the corrugated plate and the frame plate are joined by filling them with fillers, brazing and welding are not required, so that it is possible to avoid the problem of size increase and cost increase in the case of brazing, and to perform welding. Problem can be solved, and the gap between the corrugated plate and the frame plate is increased and the joint is used with the filler, so that the sealing performance can be improved and the requirement for the flatness accuracy of the frame plate is eased. it can.

（iii） コルゲート板や枠板はいずれも柔軟性がある
ので、シール性能を高めることができる。(Iii) Since both the corrugated plate and the frame plate are flexible, sealing performance can be improved.

【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図は本発明のセパレータを分離させて示す
斜視図、第４図は従来の溶融炭酸塩型燃料電池の一例を
示す断面図、第５図は従来のセパレータを分離して示す
斜視図である。 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
焼用ガス供給用流路孔、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、12
a,12b……枠板、13……切抜部、14……充填物、16,17…
…通路。FIG. 1 is a plan view of the separator of the present invention, FIG. 2 (A) is a perspective view of FIG. 1, FIG. 2 (B) is an enlarged view of part II of FIG. 2 (A), and FIG. FIG. 4 is a perspective view showing the separator of the present invention separately, FIG. 4 is a sectional view showing an example of a conventional molten carbonate fuel cell, and FIG. 5 is a perspective view showing the conventional separator separately. 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 channel hole, 11: corrugated plate, 12
a, 12b …… Frame plate, 13 …… Cutout, 14 …… Filling, 16,17…
…aisle.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】全面をコルゲート状に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を設け且つ
中央部分と該各ガスの給排用流路孔側部分にガスを均一
に流すための通路を表裏に形成した１枚のコルゲート板
と、中央部を電極の大きさ分の切抜部を有し且つ周辺部
に上記酸化ガスと燃料ガスの各給排用流路孔に対応させ
て同じ流路孔を設けた２枚の枠板とを備え、上記１枚の
コルゲート板を両面から上記２枚の枠板で挾み、該コル
ゲート板の周辺部に２枚の枠板の周辺部を重合し、コル
ゲート板周辺部の酸化ガスの給排用流路孔と２枚の枠板
周辺部の酸化ガスの給排用流路孔とを連通させるように
すると共に、コルゲート板周辺部の燃料ガスの給排用流
路孔と２枚の枠板周辺部の燃料ガスの給排用流路孔とを
連通させるようにし、且つコルゲート板の片面側では燃
料ガスの給排用流路孔のみが連通するようにしてその他
の部分のコルゲート板と枠板の重合部では両者間の隙間
を接合材としての充填物にて接合してシールし、同様に
コルゲート板の反対面側では酸化ガスの給排用流路孔の
みが連通するようにしてその他の部分のコルゲート板と
枠板の重合部では両者間の隙間を接合材としての充填物
にて接合してシールしてなることを特徴とする燃料電池
用セパレータ。1. A corrugated entire surface is provided with supply / discharge passage holes for oxidizing gas and fuel gas on one side and the other side of a peripheral portion, and a central portion and a supply / discharge passage hole side for each gas are provided. A corrugated plate having a passage for uniformly flowing gas in the front and back, and a cutout having a size corresponding to the size of the electrode in the center, and supply and discharge of the oxidizing gas and fuel gas in the periphery. And two frame plates provided with the same flow passage hole corresponding to the use flow passage hole. The one corrugated plate is sandwiched between the two frame plates from both sides, and the peripheral portion of the corrugated plate is The peripheral portions of the two frame plates are superimposed so that the oxidizing gas supply / discharge channel holes around the corrugated plate and the oxidizing gas supply / discharge channel holes around the two frame plates communicate with each other. At the same time, the fuel gas supply / discharge passage holes around the corrugated plate and the fuel gas supply / discharge passage holes around the two frame plates are communicated. And, on one side of the corrugated plate, only the fuel gas supply / discharge passage holes communicate with each other, and in the overlapping portion of the corrugated plate and the frame plate in the other portion, the gap between both is filled with a filler as a bonding material. Bonded and sealed. Similarly, on the opposite side of the corrugated plate, only the oxidizing gas supply / discharge passage holes are communicated with each other, and the gap between the corrugated plate and the frame plate in the other part is joined at the overlapping part A fuel cell separator characterized by being joined and sealed with a filler as a material.
JP62074515A 1987-03-30 1987-03-30 Separator for fuel cell Expired - Lifetime JP2569541B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62074515A JP2569541B2 (en) 1987-03-30 1987-03-30 Separator for fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62074515A JP2569541B2 (en) 1987-03-30 1987-03-30 Separator for fuel cell

Publications (2)

Publication Number Publication Date
JPS63241870A JPS63241870A (en) 1988-10-07
JP2569541B2 true JP2569541B2 (en) 1997-01-08

Family

ID=13549546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62074515A Expired - Lifetime JP2569541B2 (en) 1987-03-30 1987-03-30 Separator for fuel cell

Country Status (1)

Country Link
JP (1) JP2569541B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2554114B2 (en) * 1988-01-06 1996-11-13 株式会社日立製作所 Fuel cell separator
ES2098363T3 (en) * 1990-07-24 1997-05-01 Toshiba Kk SEPARATOR AND ITS MANUFACTURING METHOD.
JP3919281B2 (en) * 1997-02-28 2007-05-23 アイシン高丘株式会社 Solid polymer membrane fuel cell

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60253170A (en) * 1984-05-29 1985-12-13 Ishikawajima Harima Heavy Ind Co Ltd Laminated fuel battery

Also Published As

Publication number Publication date
JPS63241870A (en) 1988-10-07

Similar Documents

Publication Publication Date Title
US5424144A (en) One piece separator plate with insert ring step design
US4753857A (en) Laminated fuel cell
JPWO2005104287A1 (en) Fuel cell module
JPH084008B2 (en) Separator for fuel cell
JP2768698B2 (en) Internal manifold type molten carbonate fuel cell
JP2569541B2 (en) Separator for fuel cell
JPH0421988B2 (en)
JPH1092447A (en) Layer-built fuel cell
JP4844039B2 (en) Fuel cell
JPS6010564A (en) Seal structure for fuel cell
JP2569540B2 (en) Separator for fuel cell
JPH04149966A (en) Solid electrolyte-type fuel battery
JP2554114B2 (en) Fuel cell separator
JP3383319B2 (en) Fuel cell
JP2549463Y2 (en) Molten carbonate fuel cell
JP5492436B2 (en) Fuel cell
JP7236913B2 (en) Fuel cell separator assembly and fuel cell stack including the same
JPS59111269A (en) Layer-built fuel cell
JPH0727564Y2 (en) Fuel cell
JP3496819B2 (en) Polymer electrolyte fuel cell
JPH1021939A (en) Layer built fuel cell
JPH02126562A (en) Gas seal structure of fuel cell
JPH0542618Y2 (en)
JPS6113573A (en) Laminated construction of fuel cell
JPS63279578A (en) Fuel cell