JPH0620708A - Fuel cell - Google Patents
Fuel cellInfo
- Publication number
- JPH0620708A JPH0620708A JP4178495A JP17849592A JPH0620708A JP H0620708 A JPH0620708 A JP H0620708A JP 4178495 A JP4178495 A JP 4178495A JP 17849592 A JP17849592 A JP 17849592A JP H0620708 A JPH0620708 A JP H0620708A
- Authority
- JP
- Japan
- Prior art keywords
- fuel cell
- cell
- hole
- cooling
- fuel
- 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.)
- Granted
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
- H01M8/0258—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
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、燃料電池の改良に関
する。This invention relates to improvements in fuel cells.
【０００２】[0002]
【従来の技術】従来、燃料電池の冷却は水もしくは冷媒
（液体）によるものが大多数であり、空冷式であっても
酸化剤ガスとして用いられる空気の量を増やす方式のも
のしかみられない。2. Description of the Related Art Conventionally, most fuel cells are cooled by water or a refrigerant (liquid), and even if they are air-cooled, only a method of increasing the amount of air used as an oxidant gas can be seen. .
【０００３】[0003]
【発明が解決しようとする課題】しかし、水冷式（もし
くは冷媒による液冷式）ではセパレータ中やセパレータ
の間に冷却水を通すための管が必要となり、スタックが
複雑になる。また、セルの熱によって暖まった冷却水を
冷やす二次冷却系や冷却水を循環させるためのポンプが
必要となり、装置の寸法が大きくなる等の欠点をもつ。However, the water-cooled type (or liquid-cooled type using a refrigerant) requires a pipe for passing cooling water in the separator or between the separators, which complicates the stack. In addition, a secondary cooling system for cooling the cooling water warmed by the heat of the cell and a pump for circulating the cooling water are required, which has a drawback that the size of the device becomes large.
【０００４】更に、酸化剤ガスである空気の量を増やし
セルを冷却する方法は、簡単であって小さなスタック等
に適する方法である。しかし、イオン交換膜を使用する
燃料電池では水分の管理が重要であり発電性能を左右す
るため、空気を多量に流しセルを乾燥させてしまうこと
は望ましくない。Further, the method of increasing the amount of air which is an oxidant gas and cooling the cell is a simple method suitable for a small stack or the like. However, in a fuel cell using an ion-exchange membrane, water management is important and influences power generation performance, so it is not desirable to flow a large amount of air to dry the cell.
【０００５】この発明はこうした事情を考慮してなされ
たもので、簡単な構成で、かつセルの水分バランスを乱
すことなく空冷をなしえる燃料電池を提供することを目
的とする。The present invention has been made in view of these circumstances, and an object thereof is to provide a fuel cell having a simple structure and capable of air cooling without disturbing the water balance of the cell.
【０００６】[0006]
【課題を解決するための手段】この発明は、燃料電池発
電体と、この燃料電池発電体の両面側に夫々設けられた
セパレータとを具備し、前記セパレータの両面に燃料ガ
ス供給用溝及び酸化剤ガス供給用溝を夫々設け、かつ燃
料電池発電体を冷却する貫通穴を前記セパレータに設け
たことを特徴とする燃料電池である。The present invention comprises a fuel cell power generator and separators provided on both sides of the fuel cell power generator, and the fuel gas supply groove and the oxidation are provided on both sides of the separator. The fuel cell is characterized in that each of the agent gas supply grooves is provided and a through hole for cooling the fuel cell power generator is provided in the separator.
【０００７】[0007]
【作用】この発明においては、燃料電池発電体（セル）
を両側から挟むセパレータに上下方向に貫通する冷却用
貫通穴を設けることにより、この貫通穴を通過する空気
が複雑な経路をとったり、セルにふれることなく、セル
を冷却できる。従って、燃料電池の構成をコンパクト化
できる。In the present invention, the fuel cell power generator (cell)
By providing a cooling through hole that penetrates in the up and down direction in the separator that sandwiches the cell from both sides, the cell can be cooled without the air passing through the through hole taking a complicated path or touching the cell. Therefore, the structure of the fuel cell can be made compact.
【０００８】[0008]
【実施例】以下、この発明の一実施例を図１（Ａ），
（Ｂ）、図２及び図３を参照して説明する。ここで、図
１（Ａ）はこの発明に係る燃料電池を構成部品ごとに展
開して示す斜視図、図１（Ｂ）は図１（Ａ）のＸ−Ｘ線
に沿う断面図、図２は図１の燃料電池を複数個積層して
なるスタックの斜視図、図３は図２の燃料電池の一構成
要素であるセパレータに設けられた貫通穴の形状を示
す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to (B), FIG. 2 and FIG. Here, FIG. 1 (A) is a perspective view showing the fuel cell according to the present invention developed for each component, and FIG. 1 (B) is a sectional view taken along line XX of FIG. 1 (A). 1 is a perspective view of a stack formed by stacking a plurality of fuel cells shown in FIG. 1, and FIG. 3 shows the shape of through holes provided in a separator which is one component of the fuel cell shown in FIG.
【０００９】図中の１は、燃料電池発電体（セル）を示
す。このセル１は、セル部１ａとシール材１ｂとから構
成される。前記セル１のシール材１ｂの隅部には、ガス
通過口２が設けられている。前記セル１の両主面側は、
内部ヘッダ型セパレータ３によって挟み付けられる。こ
のセパレータ３の一方の主面の中央部には燃料ガス供給
溝４が上下方向に設けられ、他方の主面の中央部には酸
化剤ガス供給溝５が横方向に設けられている。前記セパ
レータ３の上部隅の一方側には燃料ガス供給孔６が設け
られ、下部隅の一方側には燃料ガス排出孔７が設けられ
ている。また、前記セパレータ３の上部隅の他方側には
酸化剤ガス供給孔８が設けられ、下部隅の他方側には酸
化剤ガス排出孔９が設けられている。前記セパレータ３
には、前記セル１を冷却する冷却用貫通穴10が複数個上
下方向に設けられている。この貫通穴10の平面形状は、
例えば図３（Ａ）に示すように丸穴型となっている。Reference numeral 1 in the figure denotes a fuel cell power generator (cell). The cell 1 is composed of a cell portion 1a and a sealing material 1b. A gas passage port 2 is provided at a corner of the sealing material 1b of the cell 1. Both main surface sides of the cell 1 are
It is sandwiched by the inner header type separator 3. A fuel gas supply groove 4 is vertically provided in the center of one main surface of the separator 3, and an oxidant gas supply groove 5 is horizontally provided in the center of the other main surface. A fuel gas supply hole 6 is provided on one side of the upper corner of the separator 3, and a fuel gas discharge hole 7 is provided on one side of the lower corner. An oxidant gas supply hole 8 is provided on the other side of the upper corner of the separator 3, and an oxidant gas discharge hole 9 is provided on the other side of the lower corner. The separator 3
A plurality of cooling through holes 10 for cooling the cell 1 are provided in the vertical direction. The planar shape of this through hole 10 is
For example, as shown in FIG. 3A, it has a round hole shape.
【００１０】こうした構成の燃料電池において、燃料ガ
スは燃料ガス供給孔６より投入され、セパレータ３を通
り、燃料ガス供給溝４からセル１に至る。酸化剤ガス
は、酸化剤ガス供給孔８より投入され、セパレータ３を
通り、酸化剤ガス供給溝５よりセルに至る。In the fuel cell having such a structure, the fuel gas is introduced through the fuel gas supply hole 6, passes through the separator 3, and reaches the cell 1 through the fuel gas supply groove 4. The oxidant gas is introduced through the oxidant gas supply hole 8, passes through the separator 3, and reaches the cell through the oxidant gas supply groove 5.
【００１１】上記構成の燃料電池は、図２に示すように
積層されてスタックとされ、両サイドをフランジ21，22
で挟み、複数個のボルト23により固定される。なお、図
中の24は燃料ガス注入口、25は燃料ガス排出口、26が酸
化剤ガス注入口、27は酸化剤ガス排出口を示す。ここ
で、発熱量の少ないときは自然対流による冷却で、発熱
量が多いときはファン等による強制空冷により冷却す
る。As shown in FIG. 2, the fuel cell having the above structure is formed into a stack by stacking the flanges 21 and 22 on both sides.
It is sandwiched between and fixed by a plurality of bolts 23. In the figure, 24 is a fuel gas inlet, 25 is a fuel gas outlet, 26 is an oxidant gas inlet, and 27 is an oxidant gas outlet. Here, when the amount of heat generation is small, cooling is performed by natural convection, and when the amount of heat generation is large, cooling is performed by forced air cooling using a fan or the like.
【００１２】しかして、上記実施例に係る燃料電池によ
れば、燃料電池発電体（セル）１を両側から挟むセパレ
ータ３に上下方向に貫通する丸穴型の冷却用貫通穴10を
設けた構成になっているため、この貫通穴10を通過する
空気が複雑な経路をとることなく、またセル１にふれる
ことなく、セルを冷却できる。従って、燃料電池の構成
をコンパクト化できる。According to the fuel cell of the above embodiment, however, the separator 3 sandwiching the fuel cell power generator (cell) 1 from both sides is provided with the round hole type cooling through hole 10 penetrating in the vertical direction. Therefore, the cell can be cooled without the air passing through the through hole 10 taking a complicated path and touching the cell 1. Therefore, the structure of the fuel cell can be made compact.
【００１３】なお、上記実施例では、冷却用貫通穴とし
て図３（Ａ）に示すように丸穴型のものを形成した場合
について述べたが、これに限らず、図３（Ｂ）に示す如
くライフル型平面形状の貫通穴10でもよい。また、図３
（Ｃ）の如く、銅などの熱伝導率の高い材料を用いてヒ
ートシンク31を作り、そのヒートシンク31を貫通穴につ
けたもの（ヒートシンク型）等でもよい。更に、上記貫
通穴は上記実施例のように上下方向に貫通されている必
要はなく、横方向に貫通していたり、あるいは屈曲等し
ていてもよい。また、上記実施例では、自然対流による
冷却の場合について述べたが、これに限らず、ファン等
による強制空冷により冷却する場合でもよい。In the above embodiment, the case where the cooling through hole is a round hole type as shown in FIG. 3 (A) was described, but the present invention is not limited to this, and it is shown in FIG. 3 (B). As described above, the through hole 10 having a rifle type planar shape may be used. Also, FIG.
As shown in (C), the heat sink 31 may be made of a material having a high thermal conductivity such as copper, and the heat sink 31 may be provided in the through hole (heat sink type). Further, the through hole does not have to be penetrated in the vertical direction as in the above embodiment, but may be penetrated in the lateral direction, or may be bent. Further, in the above embodiment, the case of cooling by natural convection is described, but the present invention is not limited to this, and cooling by forced air cooling by a fan or the like may be performed.
【００１４】[0014]
【発明の効果】以上詳述したようにこの発明によれば、
簡単な構成で、かつセルの水分バランスを乱すことなく
空冷をなしえる燃料電池を提供できる。As described above in detail, according to the present invention,
It is possible to provide a fuel cell having a simple structure and capable of performing air cooling without disturbing the water balance of the cell.
【図１】この発明の一実施例に係る燃料電池の説明図で
あり、図１（Ａ）はこの発明に係る燃料電池を構成部品
ごとに展開して示す斜視図、図１（Ｂ）は図１（Ａ）の
Ｘ−Ｘ線に沿う断面図。FIG. 1 is an explanatory view of a fuel cell according to an embodiment of the present invention, FIG. 1 (A) is a perspective view showing the fuel cell according to the present invention in which each component is developed, and FIG. 1 (B) is Sectional drawing which follows the XX line of FIG. 1 (A).
【図２】図１の燃料電池を複数個積層してなるスタック
の斜視図。FIG. 2 is a perspective view of a stack formed by stacking a plurality of fuel cells of FIG.
【図３】図３は図１の燃料電池の一構成要素であるセパ
レータに設けられた貫通穴の形状の平面図。FIG. 3 is a plan view of the shape of a through hole provided in a separator that is one component of the fuel cell of FIG.
１…燃料電池発電体（セル）、３…セパレータ、４…燃
料ガス供給溝、５…酸化剤ガス供給溝、６…燃料ガス供
給孔、７…燃料ガス排出孔、８…酸化剤ガス供給孔、９
…酸化剤ガス排出孔、10…冷却用貫通穴、21，22…フラ
ンジ、23…ボルト、31…ヒートシンク。DESCRIPTION OF SYMBOLS 1 ... Fuel cell power generator (cell), 3 ... Separator, 4 ... Fuel gas supply groove, 5 ... Oxidizing gas supply groove, 6 ... Fuel gas supply hole, 7 ... Fuel gas discharge hole, 8 ... Oxidizing gas supply hole , 9
… Oxidizing gas discharge hole, 10… Cooling through hole, 21,22… Flange, 23… Bolt, 31… Heat sink.
フロントページの続き (72)発明者 内田 聡 長崎県長崎市飽の浦町１番１号 三菱重工 業株式会社長崎造船所内Continued Front Page (72) Inventor Satoshi Uchida 1-1 No. 1 Satinoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard
Claims (1)
の両面側に夫々設けられたセパレータとを具備し、前記
セパレータの両面に燃料ガス供給用溝及び酸化剤ガス供
給用溝を夫々設け、かつ燃料電池発電体を冷却する貫通
穴を前記セパレータに設けたことを特徴とする燃料電
池。1. A fuel cell power generator, and separators provided on both sides of the fuel cell power generator, respectively, wherein a fuel gas supply groove and an oxidant gas supply groove are provided on both surfaces of the separator. A fuel cell characterized in that a through hole for cooling the fuel cell power generator is provided in the separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17849592A JP3372268B2 (en) | 1992-07-06 | 1992-07-06 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17849592A JP3372268B2 (en) | 1992-07-06 | 1992-07-06 | Fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0620708A true JPH0620708A (en) | 1994-01-28 |
| JP3372268B2 JP3372268B2 (en) | 2003-01-27 |
Family
ID=16049456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17849592A Expired - Lifetime JP3372268B2 (en) | 1992-07-06 | 1992-07-06 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3372268B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003050905A3 (en) * | 2001-12-11 | 2003-12-24 | Nissan Motor | Fuel cell with polymer electrolyte |
| JP2005142155A (en) * | 2003-10-31 | 2005-06-02 | Snecma Moteurs | Fuel cell structure |
-
1992
- 1992-07-06 JP JP17849592A patent/JP3372268B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003050905A3 (en) * | 2001-12-11 | 2003-12-24 | Nissan Motor | Fuel cell with polymer electrolyte |
| US7348086B2 (en) | 2001-12-11 | 2008-03-25 | Nissan Motor Co., Ltd. | Fuel cell |
| JP2005142155A (en) * | 2003-10-31 | 2005-06-02 | Snecma Moteurs | Fuel cell structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3372268B2 (en) | 2003-01-27 |
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