JPS6398970A - Fuel cell manifold - Google Patents
Fuel cell manifoldInfo
- Publication number
- JPS6398970A JPS6398970A JP61245982A JP24598286A JPS6398970A JP S6398970 A JPS6398970 A JP S6398970A JP 61245982 A JP61245982 A JP 61245982A JP 24598286 A JP24598286 A JP 24598286A JP S6398970 A JPS6398970 A JP S6398970A
- Authority
- JP
- Japan
- Prior art keywords
- manifold
- fuel cell
- opening flange
- cell stack
- gasket
- 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 description 20
- 239000000463 material Substances 0.000 claims abstract description 11
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 239000012495 reaction gas Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 5
- 239000002737 fuel gas Substances 0.000 abstract description 4
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229920001821 foam rubber Polymers 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000180579 Arca Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 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
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
- H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
-
- 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】
〔発明の属する技術分野〕
この発明は単位電池を柱状に積層した燃料電池に配設さ
れ、単位電池に反応ガスを給気、排気するマニホールド
に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a manifold that is disposed in a fuel cell in which unit cells are stacked in a columnar manner and that supplies and exhausts a reactive gas to and from the unit cells.
燃料電池においては、電池Ｍ屠体の側面に燃料ガス及び
酸化ガスを互いに直交する方向に給気。In the fuel cell, fuel gas and oxidizing gas are supplied to the side of the carcass of the battery M in directions perpendicular to each other.
排気するため、マニホールドが前記側面の四方に取付け
られる。電池椙屠体側面の周縁部とマニホールドの開口
フランジ面との間からのカスの漏洩は、燃料１！池の動
量低下および燃料カス中の水素と酸化ガス中のｒＭ素と
の爆発的反応を誘起するので、′ＶＬ旭積層体側面の周
縁部とマニホールドの開口フランジ面との間に漏洩を防
止するシール構造が必要である。従来、マニホールドは
ステンレス鋼等の金属であったため、燃料′ｒＩＬ池積
層体と該マニホールドとの間にパツキンを介装してこの
シール構造を形成していた。なお、パツキンを挾む両者
の熱膨張係数が異なるための温度変化による寸法変化の
吸収もこのパツキンによって行なっていた０
また、燃料′電池の発電に寄与する篭ｗ４質は１通常強
酸性または強アルカ１１件の樋体であり、これが電池＃
層体の内部に含浸または循騰されているため、構成材料
はこれら電解質に対しての耐融性が安水される。従って
マニホールドについでも。Manifolds are attached to all sides of the side for exhaust. The leakage of waste from between the peripheral edge of the side of the battery carcass and the opening flange surface of the manifold is fuel 1! 'Prevent leakage between the peripheral edge of the side of the VL Asahi laminate and the opening flange surface of the manifold, as this will cause a decrease in the flow rate of the pond and an explosive reaction between the hydrogen in the fuel scum and the rM element in the oxidizing gas. Seal structure is required. Conventionally, since the manifold was made of metal such as stainless steel, a seal was interposed between the fuel cell stack and the manifold to form this sealing structure. In addition, this gasket also absorbs dimensional changes due to temperature changes due to the difference in thermal expansion coefficient between the two materials that sandwich the gasket.In addition, the material of the cage that contributes to power generation in fuel cells is usually strongly acidic or strongly acidic. This is the gutter body of Arca 11, and this is the battery #
Since the electrolyte is impregnated or circulated inside the layer, the constituent materials have low melting resistance to these electrolytes. Therefore, regarding the manifold.
従来材料にステンレス９１Ａを用いた上にざらに表面に
ＰＴＦＥ、１ＪＦＥ等の耐熱耐薬品性の樹脂をコーティ
ングするなどして耐雌性を高めていた。しかしながら、
この構造のマニホールドは、高精度でのステンレス加工
が要求され、また樹脂コーティングも必要とされるため
に、かなり高価Ｐものとなってしまうという欠点があっ
た、
第３図に、従来のマニホールド構造を示す。マニホール
ド１は、その開口フランジ面２がｔａ積層体３の側面の
周縁部に向き合った状態でボルト４によって取り付けら
れている。また、マニホールドと電池積層体の間のこの
面にはパツキン５が介装されている。なお、マニホール
ド表面には前述のように耐触性の高い樹脂コーティング
６がほどこされている。Conventionally, stainless steel 91A was used as the material, and the surface was roughly coated with heat-resistant and chemical-resistant resin such as PTFE and 1JFE to improve female resistance. however,
A manifold with this structure requires high-precision stainless steel processing and requires resin coating, so it has the disadvantage of being quite expensive. Figure 3 shows a conventional manifold structure. shows. The manifold 1 is attached with bolts 4 with its opening flange surface 2 facing the peripheral edge of the side surface of the TA laminate 3. Further, a packing 5 is interposed on this surface between the manifold and the battery stack. The surface of the manifold is coated with a highly contact-resistant resin coating 6 as described above.
本発明は、軽量で安価なマニホールドを提供することを
目的とする。An object of the present invention is to provide a lightweight and inexpensive manifold.
この目的は本発明によれば、マニホールド構成部材を独
立気泡を有する発泡ゴムとすることにより、＠量で安価
なマニホールドにしようとするものである。According to the present invention, the purpose of this is to make the manifold inexpensive by using foamed rubber having closed cells as the manifold component.
第１図は、この発明の実施例を示すものである。 FIG. 1 shows an embodiment of the invention.
マニホールド７は独又気泡を有する発泡ゴムで構成され
ている。゛電池積層体３の側面の周縁部とマニホールド
の開口フランジ面８との接続は、このマニホールド７の
開口フランジ面の電池積層体と反対側に、開口フランジ
面と同じ大きさの金属性の座９をあてがい、ボルト４を
締めることによってこれを゛１重積層体へと押しつけて
行なう。力＝６＝る構成において、マニホールド部材は
従来構造のパツキンの役目をもはたすため、別にパツキ
ンを介装する必要がなくなる。一方、燃料ガスあるいは
酸化ガスを給排するための出入口１０も、マニホールド
に開けられた穴にフランジ状の端部をもったノズル１】
をあてがい、ＪＪｋｍｎから同様に座１２とボルト１３
を用いてマニホールド部材を挾めばシール性能の高い接
続が簡単にできる。The manifold 7 is made of foam rubber having individual cells.゛The connection between the peripheral edge of the side surface of the battery stack 3 and the opening flange surface 8 of the manifold is achieved by using a metal seat of the same size as the opening flange surface on the side of the opening flange surface of the manifold 7 opposite to the battery stack. 9 and tighten the bolt 4 to press it into the single layered structure. In the configuration where the force is 6, the manifold member also functions as a gasket in the conventional structure, so there is no need to provide a separate gasket. On the other hand, the inlet/outlet 10 for supplying and discharging fuel gas or oxidizing gas is also a nozzle 1 having a flange-like end in a hole drilled in the manifold.
Assign seat 12 and bolt 13 from JJkmn as well.
A connection with high sealing performance can be easily achieved by sandwiching the manifold member using the .
上記のようにこの発明の実施によりパツキンを別途設け
ることなく、シール性を保てるマニホールドの実現が可
能となるが、この発明にはこの他にも欠配の利点がある
。■一体成形による製作が可能であるため、大量に安価
で製造できる。また。As described above, by carrying out the present invention, it is possible to realize a manifold that can maintain sealing performance without separately providing a packing, but the present invention has other advantages. ■Since it can be manufactured by integral molding, it can be manufactured in large quantities at low cost. Also.
発泡ゴム自体の材質を、例えばｌｌ ７酸型燃料電池な
らばフッ素ゴム、またアルカ１１型燃料電池ならばエチ
レンプロピレンゴムといった耐触性の高いものとすれば
表面に耐触コーティングをほどこす必要もない・■金属
性マニホールドに比べて軽量である。■ある程度の伸縮
が可能なため、出来上がり寸法の精度の許容値を大きく
できる。また温度変化にともなう寸法変化をマニホール
ド全体で吸収することができる。ｃつ上記のゴム材料（
フッ素ゴム、エチレンプロピレンゴム）等は絶縁件にも
優れているため、マニホールドを介しての短絡の心配が
ない。If the foam rubber itself is made of a material with high corrosion resistance, such as fluororubber for 11-7 acid fuel cells, or ethylene propylene rubber for Alka 11-type fuel cells, it may be necessary to apply a corrosion-resistant coating to the surface. - Lighter than metal manifolds. ■Since it is possible to expand and contract to a certain extent, the tolerance for accuracy of finished dimensions can be increased. In addition, dimensional changes due to temperature changes can be absorbed by the entire manifold. The above rubber materials (
Fluororubber, ethylene propylene rubber), etc. have excellent insulation properties, so there is no need to worry about short circuits through the manifold.
また、金属性マニホールド使用の従来の燃料電池では、
燃料電池からマニホールドを介しての放熱を防ぐ場合に
マニホールド表面に断熱材を貼りつけることを行なりて
いたが、この発明による発を含む一種の断熱材であるた
め、別途、断熱材を必要としないという利点もある。In addition, in conventional fuel cells that use metal manifolds,
In order to prevent heat radiation from a fuel cell through a manifold, a heat insulating material was attached to the surface of the manifold, but since this invention is a type of heat insulating material that includes heat radiation, a separate heat insulating material is required. There is also the advantage of not doing so.
第２図はこの発明の異なる実施例を示すものである。第
１図と異なる点は、燃料ガスあるいは酸化ガスを給排す
るための出入口１０を開口フランジ面１４まで含めて一
体成形したところにある０この例は、構成部品点数を減
らしたというだけでなく。FIG. 2 shows a different embodiment of the invention. The difference from Fig. 1 is that the inlet/outlet 10 for supplying and discharging fuel gas or oxidizing gas is integrally molded, including the opening flange surface 14. This example not only reduces the number of component parts, but also .
燃料電池と他の部品１５との接続に伸縮性のある材料を
用いたことにより、わずかな寸法のくるいによって各部
に無理な力が加わるのを防ぐといつ利点もある。It is always advantageous to use stretchable materials for the connections between the fuel cell and the other components 15 to avoid excessive forces being applied to the parts due to the small size of the loops.
〔発明の効果〕
以上の説明から明らかなようにこの発明によれば、燃料
電池積層体の（１１１１′ＴＴ＋から反応ガスを給排す
るマニホールドをゴム材で構成することとしたので、従
来の金属マニホールドに比べて＠楡、安価にすることが
できる。また、ゴムの伸縮性によりシール性の向上をは
かることかでき、絶燃性、断熱性の高いマニホールドに
することができる。[Effects of the Invention] As is clear from the above description, according to the present invention, the manifold for supplying and discharging the reaction gas from (1111'TT+) of the fuel cell stack is made of rubber material, so it is possible to replace the conventional metal material. It can be made cheaper than a manifold.Also, the elasticity of the rubber allows for improved sealing properties, making it possible to create a manifold with high flame resistance and heat insulation.
ｖ、１図はこの発明の実施例であるマニホールドを発泡
ゴムで構成した燃料電池の平面断面図、第２図はこの発
明の異なる実施例を示すマニホールドの平面断面図、第
３図は従来のマニホールドを示す燃料電池の平面断面図
である・
１ニステンレス裂マニホールド、３：電池積層体、７二
発泡ゴム裂のマニホールド、９：座。Figure 1 is a plan sectional view of a fuel cell in which the manifold is made of foamed rubber, which is an embodiment of the present invention, Figure 2 is a plane sectional view of a manifold showing a different embodiment of the invention, and Figure 3 is a conventional fuel cell. 1 is a cross-sectional plan view of a fuel cell showing manifolds. 1: Two stainless steel cracked manifold, 3: Cell stack, 7: Two foam rubber split manifold, 9: Seat.
Claims (1)
反応ガスを給排するマニホールドを配設してなるものに
おいて、当該マニホールドをゴム材料で構成したことを
特徴とする燃料電池マニホールド。 ２）特許請求範囲第１項記載のものにおいて、ゴム材料
を独立気泡を有する発泡ゴムとすることを特徴とする燃
料電池マニホールド。[Scope of Claims] 1) A fuel cell stack in which unit cells are stacked in a columnar manner, and a manifold for supplying and discharging a reaction gas is disposed on the side surface of the fuel cell stack, characterized in that the manifold is made of a rubber material. fuel cell manifold. 2) A fuel cell manifold according to claim 1, characterized in that the rubber material is foamed rubber having closed cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61245982A JPS6398970A (en) | 1986-10-16 | 1986-10-16 | Fuel cell manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61245982A JPS6398970A (en) | 1986-10-16 | 1986-10-16 | Fuel cell manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6398970A true JPS6398970A (en) | 1988-04-30 |
Family
ID=17141715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61245982A Pending JPS6398970A (en) | 1986-10-16 | 1986-10-16 | Fuel cell manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6398970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0951086A2 (en) * | 1998-04-17 | 1999-10-20 | Matsushita Electric Industrial Co., Ltd. | Solid polymer electrolyte fuel cell and method for producing the same |
| US20190097254A1 (en) * | 2016-08-22 | 2019-03-28 | Doosan Fuel Cell America, Inc. | Fuel cell manifold assembly including a self-supporting polymer material liner |
-
1986
- 1986-10-16 JP JP61245982A patent/JPS6398970A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0951086A2 (en) * | 1998-04-17 | 1999-10-20 | Matsushita Electric Industrial Co., Ltd. | Solid polymer electrolyte fuel cell and method for producing the same |
| EP0951086A3 (en) * | 1998-04-17 | 2001-10-17 | Matsushita Electric Industrial Co., Ltd. | Solid polymer electrolyte fuel cell and method for producing the same |
| US6372373B1 (en) | 1998-04-17 | 2002-04-16 | Matsushita Electric Industrial Co., Ltd. | Solid polymer electrolyte fuel cell and method for producing the same |
| EP1484813A3 (en) * | 1998-04-17 | 2008-10-08 | Matsushita Electric Industrial Co., Ltd. | Solid polymer electrolyte fuel cell and method for producing the same |
| US20190097254A1 (en) * | 2016-08-22 | 2019-03-28 | Doosan Fuel Cell America, Inc. | Fuel cell manifold assembly including a self-supporting polymer material liner |
| CN109891650A (en) * | 2016-08-22 | 2019-06-14 | 斗山燃料电池美国股份有限公司 | Fuel cell manifold component including self-supporting polymer material lining |
| US10903514B2 (en) * | 2016-08-22 | 2021-01-26 | Doosan Fuel Cell America, Inc. | Fuel cell manifold assembly including a self-supporting polymer material liner |
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