JPH0652668B2 - Fuel cell - Google Patents
Fuel cellInfo
- Publication number
- JPH0652668B2 JPH0652668B2 JP62243745A JP24374587A JPH0652668B2 JP H0652668 B2 JPH0652668 B2 JP H0652668B2 JP 62243745 A JP62243745 A JP 62243745A JP 24374587 A JP24374587 A JP 24374587A JP H0652668 B2 JPH0652668 B2 JP H0652668B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- end plate
- battery
- plate
- header
- 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 - Fee Related
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
- H01M8/24—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
- H01M8/0271—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
- H01M8/24—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
-
- 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
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、燃料電池に係り、特に積層構造が簡略で、し
かもガス洩れ防止に好適な燃料電池に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel cell, and more particularly to a fuel cell which has a simple laminated structure and is suitable for preventing gas leakage.
従来の燃料電池は、(1)特開昭60−241659号公報に記載
のように電池本体の上下端板に、端板内部にある燃料室
及び酸化剤室に通じる複数本の導管により、固定された
バッファタンクを配したことにより、燃料，酸化剤ガス
を電池に供給するため、電池運転時の熱膨張，収縮等の
電池構成部材の変形による、供給ガスの漏れを防止出来
る構造になっている。The conventional fuel cell is (1) fixed to the upper and lower end plates of the cell body by a plurality of conduits leading to the fuel chamber and the oxidant chamber inside the end plate as described in JP-A-60-241659. Since the fuel tank and the oxidant gas are supplied to the battery by arranging the buffer tank, it is possible to prevent the supply gas from leaking due to the deformation of the battery constituent members such as thermal expansion and contraction during the battery operation. There is.
また、(2)特開昭60−109179号公報に記載のように電池
周囲に設けられたマニホールドと、その周囲に設けられ
た締付バンドとの間にスプリングを配置することによっ
て、マニホールドと電池本体をシール材を介して密着さ
せ、供給ガスのシールを行う構造となっている。(2) As described in JP-A-60-109179, by disposing a spring between a manifold provided around the battery and a tightening band provided around the manifold, the manifold and the battery are provided. The structure is such that the main body is brought into close contact with the sealing material to seal the supply gas.
上記した従来の技術(1)では、電池積層数の増大、ある
いは、電極面積の増大に伴う、バッファタンクの増大が
考えられ、さらに端板とバッファタンクの間に設けられ
た導管内径の拡大が困難となることが考えられる。従っ
て将来的に電池の高積層化，大面積化が行なわれた場合
には、その電池の据付面積の増大という点に関し問題点
がある。またさらに、電池構成部材の製作時間の増大に
伴う、製作コストの増加という点においても問題点があ
る。In the above-mentioned conventional technique (1), it is considered that the buffer tank is increased due to an increase in the number of stacked batteries or an increase in the electrode area, and further, the inner diameter of the conduit provided between the end plate and the buffer tank is increased. It can be difficult. Therefore, if the battery is made to have a high stacking structure and a large area in the future, there is a problem in that the installation area of the battery is increased. Further, there is also a problem in that the manufacturing cost increases with the increase in the manufacturing time of the battery constituent member.
また、上記した従来の技術(2)の場合には、電池本体に
ガス供給を行う為のマニホールドが電池側面に設けてあ
り、これらを固定するため締付装置が必要であり、電池
装置として、大形のものにならざるを得ない。さらに、
電池側面で固定する為、ガスの漏れ等が発生しやすいな
どの問題点がある。Further, in the case of the above-mentioned conventional technique (2), a manifold for supplying gas to the battery body is provided on the side surface of the battery, and a fastening device is required to fix these, and as a battery device, It has to be a large one. further,
Since it is fixed on the side of the battery, there is a problem that gas leaks are likely to occur.
本発明は、これらに鑑みなされたもので、その目的とす
るところは、電池の小型化可能にして、ガス漏洩が無
く、かつ製造コストを低減することのできるこの種燃料
電池を提供するにある。The present invention has been made in view of these circumstances, and an object of the present invention is to provide a fuel cell of this kind that enables downsizing of a cell, has no gas leakage, and can reduce manufacturing cost. .
すなわち本発明は、電池本体の上下に配置されている上
端板および下端板の、その単電池側の面にのみガス流路
溝を設けるとともに、前記上端板の上面および下端板の
下面に、前記ガス流路にガスを供給するためのガスヘッ
ダーを配置し、かつ前記上端板の上面とガスヘッダーの
間及び下端板の下面とガスヘッダーの間に、夫々電池運
転温度以上で液体となる物質を保持させたセラミックス
板を介在させ、さらにこのセラミックス板を介して、夫
々前記ガスヘッダーと前記ガス流路溝とを連通するガス
流路を設けるようになし所期の目的を達成するようにし
たものである。That is, the present invention provides a gas passage groove only on the surface of the upper end plate and the lower end plate disposed above and below the battery body on the unit cell side, and on the upper surface of the upper end plate and the lower surface of the lower end plate, A gas header for supplying gas to the gas flow path is arranged, and a substance that becomes liquid at a battery operating temperature or higher is placed between the upper surface of the upper plate and the gas header and between the lower surface of the lower plate and the gas header, respectively. In order to achieve the intended purpose by interposing a held ceramics plate, and further by providing gas flow passages that respectively communicate the gas header and the gas flow passage groove through the ceramics plate. Is.
すなわちこのように形成された燃料電池であると、電池
運転温度以上で液体となる物質を保持しているセラミッ
クス板が、上下端板の面とガスヘッダーの間の平坦な部
分に介在されることから、高い運転温度となっても充分
ガスの漏洩は防止され、また電池本体は腐食性の強い電
解質に接触しているため、腐食が激しくある一定期間毎
に交換を必要とするが、構造が複雑で高価なヘッダーが
上端板および下端板の外側に配置されていることから、
腐食が少なく再利用が可能で、製造コストを低減するこ
とができる。That is, in the fuel cell thus formed, the ceramic plate holding the substance that becomes liquid at the cell operating temperature or higher is interposed in the flat portion between the upper and lower end plate surfaces and the gas header. Therefore, even if the operating temperature is high, gas leakage is sufficiently prevented.Because the battery body is in contact with the highly corrosive electrolyte, it needs to be replaced every certain period when the corrosion is severe. Since complex and expensive headers are placed outside the top and bottom plates,
It is less corrosive and can be reused, reducing manufacturing costs.
〔実施例〕 以下、本発明の実施例を第１〜３図により説明する。第
１図は、本発明実施例の分解斜視図である。２つの電極
によって挟まれた電解質板６とそれらを挟む様に配し
た、ガス流路及び両面にガス供給溝を備えたセパレータ
５を交互に積層し、それらの積層電池の上端に上端板３
及び下端に下端板４を配置する。以上の積層電池の上下
に燃料及び酸化剤供給に用いるガスヘッター１を設ける
それにより、電池本体へ反応ガスを供給する。さらに反
応ガスの電池外部へのもれ防止及びガスヘッダーと端板
との間での燃料ガスと酸化剤ガスとの混合を防止するた
めにシール材２を設ける。このシール材２は、例えばア
ルミン酸リチウム等を原料とするセラミックス基板に、
燃料電池の運転温度以上で溶融状態にある炭酸塩を含浸
させ、基板中に空孔が存在しない様に処理したものを使
用する。[Examples] Examples of the present invention will be described below with reference to Figs. FIG. 1 is an exploded perspective view of an embodiment of the present invention. An electrolyte plate 6 sandwiched between two electrodes and a separator 5 having gas flow channels and gas supply grooves on both sides, which are arranged so as to sandwich them, are alternately laminated, and an upper end plate 3 is formed on the upper end of the laminated battery.
And the lower end plate 4 is arranged at the lower end. The gas header 1 used for supplying the fuel and the oxidant is provided above and below the laminated battery, thereby supplying the reaction gas to the battery main body. Further, a sealing material 2 is provided to prevent leakage of the reaction gas to the outside of the battery and to prevent mixing of the fuel gas and the oxidant gas between the gas header and the end plate. This sealing material 2 is, for example, a ceramic substrate made of lithium aluminate or the like,
A carbonate is used which is impregnated with a carbonate which is in a molten state at a temperature higher than the operating temperature of the fuel cell and treated so that no holes are present in the substrate.
上記積層電池を第２図に示した様な方法により、面圧を
加えることにより、確実なガスシール効果を得ることが
できる。第２図において、１はガスヘッダー、２はシー
ル材、７は締付板、８はシリンダー、９は電池本体であ
る。A reliable gas sealing effect can be obtained by applying a surface pressure to the above laminated battery by the method as shown in FIG. In FIG. 2, 1 is a gas header, 2 is a sealing material, 7 is a tightening plate, 8 is a cylinder, and 9 is a battery body.
また、この様に使用されるシール材は、非常に緻密なセ
ラミック基板のみを使用しても可能であり、特に、溶融
溶液を含浸させなくともよい。またヘッダー，セラミッ
ク板，電池端板の接触面を拡散接合等によって接合した
場合でも同様の効果を得ることができる。さらに、電池
本体は、周囲に対し絶縁された状態を維持することが可
能である。In addition, the sealing material used in this way can use only a very dense ceramic substrate, and in particular, it is not necessary to impregnate the molten solution. The same effect can be obtained even when the contact surfaces of the header, the ceramic plate, and the battery end plate are joined by diffusion joining or the like. Furthermore, the battery body can be kept insulated from the surroundings.
また、シール材の形状は、第３図に示した様な形状であ
ってもよい。第３図において２はシール材、１０はガス
流路である。Further, the shape of the seal material may be the shape as shown in FIG. In FIG. 3, 2 is a sealing material, and 10 is a gas flow path.
したがって、上記の実施例においては、電池組立の簡素
化，据付スペースの縮少が可能となる。Therefore, in the above embodiment, the battery assembly can be simplified and the installation space can be reduced.
本発明によれば、シール材及びガスヘッダーを積層電池
本体の上下に設けたことにより、それら専用の締付装置
を必要とせず、電池締付装置と共用できるため、電池装
置の小型化，据付スペースの縮少，電池組立の簡素化が
可能となり、また、電池運転温度以上で液体となる物質
を保持しているセラミックス板が、上下端板の面とガス
ヘッダーの間の平坦な部分に介在されることから、高温
な運転温度となっても充分ガスの漏洩は防止され、また
構造が複雑で高価なヘッダーは上端板および下端板の外
側に配置されていることから、腐食が少なく再利用が可
能で、製造コストを低減することができる。According to the present invention, since the sealing material and the gas header are provided above and below the laminated battery main body, the dedicated tightening device is not required and can be shared with the battery tightening device. Therefore, the battery device can be downsized and installed. Space can be reduced, battery assembly can be simplified, and a ceramic plate that holds a substance that becomes a liquid at the battery operating temperature or higher is interposed in the flat part between the upper and lower end plate surfaces and the gas header. Therefore, even if the operating temperature is high, gas leakage is sufficiently prevented, and the complicated and expensive header is located outside the top and bottom plates, so there is little corrosion and it can be reused. It is possible to reduce the manufacturing cost.
第１図は本発明の実施例の分解斜視図、第２図は本発明
の燃料電池の締付方法を示す正面図、第３図はシール材
の斜視図である。 １…ガスヘッダー、２…シール材、３…上端板、４…下
端板、５…セパレータ、６…電解質板。FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a front view showing a fastening method of a fuel cell of the present invention, and FIG. 3 is a perspective view of a sealing material. 1 ... Gas header, 2 ... Sealing material, 3 ... Upper end plate, 4 ... Lower end plate, 5 ... Separator, 6 ... Electrolyte plate.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 務 茨城県日立市幸町３丁目１番１号 株式会 社日立製作所日立工場内 (72)発明者 高島 正 茨城県日立市幸町３丁目１番１号 株式会 社日立製作所日立工場内 (56)参考文献 特開 昭60−241659（ＪＰ，Ａ) 実開 昭62−135356（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Tsutomu Takahashi, 1-1 1-1 Saiwaicho, Hitachi, Ibaraki Prefecture Hitachi factory Hitachi factory (72) Inventor Tadashi Takashima 3-chome, Saiwaicho, Hitachi, Ibaraki No. 1 Stock company, Hitachi, Ltd., Hitachi factory (56) References JP-A-60-241659 (JP, A) Actual development: Shou 62-135356 (JP, U)
Claims (1)
れた電解質板よりなる複数個の単電池と、 該単電池の間に積層され、かつ単電池に燃料ガス及び酸
化剤ガスを供給するためのガス流路を両面に有するセパ
レータと、 前記複数個積層された単電池の上下両端に配置された上
端板、下端板と、 を備えた燃料電池において、 前記上端板および下端板の単電池側の面にのみガス流路
溝を設けるとともに、 前記上端板の上面および下端板の下面に、前記ガス流路
にガスを供給するためのガスヘッダーを配置し、 かつ前記上端板の上面とガスヘッダーの間及び下端板の
下面とガスヘッダーの間に、夫々電池運転温度以上で液
体となる物質を保持させたセラミックス板を介在させ、
さらにこのセラミックス板を介して、夫々前記ガスヘッ
ダーと前記ガス流路溝とを連通するガス流路を設けたこ
とを特徴とする燃料電池。1. A plurality of unit cells composed of an electrolyte plate sandwiched between two electrodes, an anode and a cathode, and stacked between the unit cells, and for supplying a fuel gas and an oxidant gas to the unit cells. A separator having gas passages on both sides, and an upper end plate and a lower end plate arranged at the upper and lower ends of the plurality of stacked unit cells, wherein the upper end plate and the lower end plate are on the unit cell side. A gas channel groove is provided only on the upper surface of the upper end plate and a lower surface of the lower end plate, and a gas header for supplying gas to the gas flow path is disposed on the upper surface of the upper end plate and the gas header. Between the lower surface of the lower end plate and the gas header, a ceramic plate holding a substance that becomes a liquid at a battery operating temperature or higher is interposed,
Further, the fuel cell is characterized in that a gas flow path that connects the gas header and the gas flow path groove is provided via the ceramic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243745A JPH0652668B2 (en) | 1987-09-30 | 1987-09-30 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243745A JPH0652668B2 (en) | 1987-09-30 | 1987-09-30 | Fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6489154A JPS6489154A (en) | 1989-04-03 |
| JPH0652668B2 true JPH0652668B2 (en) | 1994-07-06 |
Family
ID=17108356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62243745A Expired - Fee Related JPH0652668B2 (en) | 1987-09-30 | 1987-09-30 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0652668B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2500021B2 (en) * | 1992-11-09 | 1996-05-29 | 株式会社日立製作所 | Fuel cell |
| AU3510800A (en) * | 1999-03-03 | 2000-09-21 | Institute Of Gas Technology | Sealing molten carbonate fuel cell electrolyte matrix |
| US7070874B2 (en) | 2002-12-24 | 2006-07-04 | Fuelcell Energy, Inc. | Fuel cell end unit with integrated heat exchanger |
| US7323270B2 (en) | 2004-08-11 | 2008-01-29 | Fuelcell Energy, Inc. | Modular fuel-cell stack assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241659A (en) * | 1984-05-16 | 1985-11-30 | Agency Of Ind Science & Technol | Fused salt type fuel cell |
| JPS62135356U (en) * | 1986-02-19 | 1987-08-26 |
-
1987
- 1987-09-30 JP JP62243745A patent/JPH0652668B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6489154A (en) | 1989-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4444851A (en) | Fuel cell stack | |
| US6946212B2 (en) | Electrochemical fuel cell stack with improved reactant manifolding and sealing | |
| US6066409A (en) | Electrochemical fuel cell stack with improved reactant manifolding and sealing | |
| US5232792A (en) | Cell separator plate used in fuel cell stacks | |
| US6764787B2 (en) | One piece sleeve gas manifold for cell stack assemblies such as fuel cells | |
| US5424144A (en) | One piece separator plate with insert ring step design | |
| US5503945A (en) | Separator plate for a fuel cell | |
| JP2004527872A (en) | Electrochemical cell stack | |
| EP0281949B1 (en) | Corrosion resistant fuel cell structure | |
| US7811716B2 (en) | Fuel cell | |
| US5811202A (en) | Hybrid molten carbonate fuel cell with unique sealing | |
| US8323853B2 (en) | Fuel cell stack | |
| US6017649A (en) | Multiple step fuel cell seal | |
| JPH0652668B2 (en) | Fuel cell | |
| JPH08180888A (en) | Fuel cell stack, electrode assembly for fuel cell stack, and manufacturing method thereof | |
| JPH04149966A (en) | Solid electrolyte fuel cell | |
| JP2549463Y2 (en) | Molten carbonate fuel cell | |
| KR102541553B1 (en) | Fuel cell stack system | |
| JPH09120833A (en) | Solid polymer electrolyte fuel cell | |
| JPH084012B2 (en) | Fuel cell | |
| JPH01211868A (en) | Fuel cell | |
| JPH0542618Y2 (en) | ||
| JPH05114407A (en) | Fuel cell | |
| JPH025368A (en) | Fused carbonate type fuel cell | |
| JPS61128475A (en) | Fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |