JPH0624137B2 - Fuel cell stack - Google Patents
Fuel cell stackInfo
- Publication number
- JPH0624137B2 JPH0624137B2 JP61006421A JP642186A JPH0624137B2 JP H0624137 B2 JPH0624137 B2 JP H0624137B2 JP 61006421 A JP61006421 A JP 61006421A JP 642186 A JP642186 A JP 642186A JP H0624137 B2 JPH0624137 B2 JP H0624137B2
- Authority
- JP
- Japan
- Prior art keywords
- stack
- battery
- fuel cell
- small
- container
- 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
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- 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
- H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
-
- 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】 〔発明の利用分野〕 本発明は燃料電池に係り、特に高積層化に好適な構造を
有する燃料電池に関する。The present invention relates to a fuel cell, and more particularly to a fuel cell having a structure suitable for high stacking.
従来の燃料電池は、たとえば特開昭58−115772号および
特開昭58−164168号に記載のように、スタックを小ブロ
ックに分割してそれぞれの小ブロックを締付けて積層し
た構造や、小ブロックの中間プレートおよびエンドプレ
ートと小ブロックとの間に相互連通する液体密封容器を
挾んだ構造などが知られている。A conventional fuel cell has a structure in which a stack is divided into small blocks and each small block is fastened and laminated, as described in JP-A-58-115772 and JP-A-58-164168, or a small block. There is known a structure in which a liquid-tight container that intercommunicates between the intermediate plate and the end plate and the small block is sandwiched.
しかしながら従来のこのような構造の燃料電池では、電
池の締付け面圧をスタックの自重による面圧以下に設定
できないため、たとえばスタック当り数１００セル積層
した場合には最下部付近の電池面圧が高くなりすぎて、
電改質の割れや電極の圧縮クリープなどによる性能劣化
が生じる問題点があった。又電池容器を複数階状に形成
し、この各階に分割電池を配置する考えもあるが、この
ものは圧力容器自体を特殊なものとしなければならない
嫌いがある。However, in the conventional fuel cell having such a structure, the tightening surface pressure of the cell cannot be set below the surface pressure due to the weight of the stack. Too much,
There is a problem that performance degradation occurs due to cracking of electro-deformation and compression creep of electrodes. It is also possible to form the battery container in a plurality of floors and arrange the divided batteries on each floor, but this has a dislike that the pressure container itself must be special.
本発明の目的は電池容器を特殊なものとすることなく電
池の高性能化および長寿命化を図るべく電池締付け面圧
を均等に適切な値に設定可能な構造の燃料電池を提供す
るにある。An object of the present invention is to provide a fuel cell having a structure in which the cell clamping surface pressure can be uniformly set to an appropriate value in order to achieve high performance and long life of the cell without making the cell container special. .
すなわち本発明は、電解質板を挾持して相対向するアノ
ード及びカソードからなる単位電池をガス流路を有する
セパレータを介して複数個積層してなるスタックが容器
内に複数個積層されて収納された燃料電池において上記
容器内のそれぞれのスタックは一対の電池締付け板で挾
持され、該一対の電池締付け板は上記スタックに所定の
面圧が印加されるように締付けばね及び締付けナットで
締付けられてなるとともに、それぞれのスタックの下部
にスタック支持板が配設され、かつこれらのスタック支
持板間の間隔が上記スタックの高さよりも大きくなるよ
うにスタック支持板が支持ボルトによって支持されてな
ることにより所期の目的を達成するようになしたもので
ある。That is, according to the present invention, a stack of a plurality of unit cells composed of an anode and a cathode sandwiching an electrolyte plate and facing each other with a separator having a gas flow path is stacked and housed in a container. In the fuel cell, each stack in the container is clamped by a pair of cell clamping plates, and the pair of cell clamping plates are clamped by a clamping spring and a clamping nut so that a predetermined surface pressure is applied to the stack. At the same time, a stack support plate is provided at the bottom of each stack, and the stack support plates are supported by support bolts so that the distance between the stack support plates is larger than the height of the stack. It is designed to achieve the purpose of the term.
以下に本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明による燃料電池スタックの一実施例を示
す側面図である。第１図において、１は積層電池、２は
電池締付け板、３は電池締付けボルト、４は電池締付け
ばね、５は電池締付けナット、６は小ブロック、７は小
スタック支持板、８は小スタック支持ボルト、９は小ス
タック支持ナット、１０はスタック支持台、１１は電池
容器、１２は電池容器フランジ、１３は電池容器支持
台、１４は電池スタックである。FIG. 1 is a side view showing an embodiment of a fuel cell stack according to the present invention. In FIG. 1, 1 is a laminated battery, 2 is a battery clamping plate, 3 is a battery clamping bolt, 4 is a battery clamping spring, 5 is a battery clamping nut, 6 is a small block, 7 is a small stack support plate, and 8 is a small stack. A support bolt, 9 is a small stack support nut, 10 is a stack support, 11 is a battery container, 12 is a battery container flange, 13 is a battery container support, and 14 is a battery stack.
第１図の電解質板を挾持して相対向するアノードとカソ
ードからなる単位電池を、ガス流路を有するセパレータ
を介して複数個積層した積層電池１はその上下に配置さ
れる２枚の電池締付け板２および４本の締付けボルト３
によって所定の面圧に締付けばね４および締付けナット
５を用いて締付けられ、これらにより小スタック６を形
成する。なおここでの締付けばね４は小スタック６の熱
変形などによる高さの変化により積層電池１の締付け面
圧が変化するのを緩和する働きをする。このように形成
される複数個たとえば３個の小スタック６が３枚の小ス
タック支持板７および４本の支持ボルト８によってそれ
ぞれ自重が支持された状態で支持ナット９を用いて高さ
方向に積層され、これらがスタック支持台１０に支持さ
れた状態で電池容器フランジ１２および電池容器支持台
１３を有する電池容器１１内に収納されて燃料電池１４
を構成する。A laminated battery 1 in which a plurality of unit batteries each composed of an anode and a cathode sandwiching the electrolyte plate of FIG. Plate 2 and 4 tightening bolts 3
By means of a tightening spring 4 and a tightening nut 5 to a predetermined surface pressure, by which a small stack 6 is formed. The tightening spring 4 here serves to mitigate a change in the tightening surface pressure of the laminated battery 1 due to a change in height due to thermal deformation of the small stack 6. A plurality of small stacks 6 formed in this way, for example three, are supported in the height direction by using support nuts 9 with their own weights supported by three small stack support plates 7 and four support bolts 8. The fuel cells 14 are stacked and housed in a battery container 11 having a battery container flange 12 and a battery container support 13 while being supported by a stack support 10.
Make up.
本実施例によれば、電池スタックを複数個に分割する各
小スタック６の積層電池１の積層数があまり多くなく
て、かつ各小スタック６に他の小スタック６の自重も加
わらないため、積層電池１の面圧を適切な値に設定でき
て、積層電池１の電解質板の割れや電極のクリーブを防
止し燃料電池の高性能化および長寿命化を達成できる。
また電池スタックを小スタック６に分割することで、積
層電池１の熱変形による高さ変化の追従が容易になって
締付け構造が簡単になり、さらに積層電池１の厚さの誤
差による電池の傾きも小さくなり安定して組立てが容易
となるほか、また故障時には他の小スタック６の締付け
面圧を変えることなしに故障した小スタック６を交換で
きるたけ保守管理も容易である。又それぞれの小スタッ
ク６は支持ボルト８にて容器底に支持されるので、容器
自体は従来同様圧力に耐える厚みを有するものでよい。According to the present embodiment, the number of stacked batteries 1 of each small stack 6 that divides the battery stack into a plurality is not so large, and the weight of the other small stacks 6 is not added to each small stack 6. The surface pressure of the laminated battery 1 can be set to an appropriate value, cracking of the electrolyte plate and cleaving of the electrodes of the laminated battery 1 can be prevented, and high performance and a long life of the fuel cell can be achieved.
Further, by dividing the battery stack into the small stacks 6, the height change due to the thermal deformation of the laminated battery 1 can be easily followed, the tightening structure can be simplified, and further, the inclination of the battery due to the error in the thickness of the laminated battery 1 In addition to the small size, stable assembly is facilitated, and in the event of a failure, the failed small stack 6 can be replaced without changing the tightening surface pressure of the other small stacks 6, and maintenance is easy. Further, since each small stack 6 is supported by the support bolt 8 on the bottom of the container, the container itself may have a thickness capable of withstanding pressure as in the conventional case.
さらに本実施例によれば、電池容器１１が各小スタック
６ごとに分解されているため、ガスリークが生じた場合
どの小スタック６がガスリークの原因であるか容易に判
断できて、さらにガスリークの影響が他の小スタック６
まで及ぶことがないほか、また電池容器１１の内部の高
さ方向の温度分布が均一化されて電池性能の向上にも役
立つ。Further, according to this embodiment, since the battery container 11 is disassembled for each small stack 6, when a gas leak occurs, it is possible to easily determine which small stack 6 is the cause of the gas leak, and further the influence of the gas leak. Is another small stack 6
Besides, the temperature distribution in the height direction inside the battery container 11 is made uniform, which is useful for improving battery performance.
以上のように本発明によれば、特に圧力容器を特殊なも
のとすることなく、電池締付け面圧を均等に適切な値に
設定できるため電池を高積層化可能してかつ高性能化お
よび長寿命化が図れるほどか、締付ける各電池の積層数
が少ないため組立ておよび保守点検も容易になる効果が
ある。As described above, according to the present invention, since the battery clamping surface pressure can be uniformly set to an appropriate value without making the pressure vessel special, it is possible to highly stack the batteries and improve the performance and length. It has the effect of facilitating assembly and maintenance because the number of layers of each battery to be tightened is small enough to extend the service life.
第１図は本発明による燃料電池の実施例を示す側面図で
ある。 １……積層電池、２……電池締付け板、３……電池締付
けボルト、４……電池締付けばね、５……電池締付けナ
ット、６……小スタック、７……小スタック支持板、８
……小スタック支持ボルト、９……小スタック支持ナッ
ト、１０……スタック支持台、１１……電池容器、１２
……容器フランジ、１４……燃料電池。FIG. 1 is a side view showing an embodiment of a fuel cell according to the present invention. 1 ... Laminated battery, 2 ... Battery tightening plate, 3 ... Battery tightening bolt, 4 ... Battery tightening spring, 5 ... Battery tightening nut, 6 ... Small stack, 7 ... Small stack support plate, 8
…… Small stack support bolts, 9 …… Small stack support nuts, 10 …… Stack support bases, 11 …… Battery containers, 12
...... Container flange, 14 ...... Fuel cell.
Claims (1)
びカソードからなる単位電池をガス流路を有するセパレ
ータを介して複数個積層してなるスタックが容器内に複
数個積層されて収納された燃料電池において、 上記容器内のそれぞれのスタックは一対の電池締付け板
で挾持し、該一対の電池締付け板は上記スタックに所定
面圧が印加されるように締付けばね及び締付けナットで
締付けられてなるとともに、それぞれのスタックの下部
にスタック支持板が配設され、かつこれらのスタック支
持板間の間隔が上記スタックの高さよりも大きくなるよ
うにスタック支持板が支持ボルトによって支持されてな
ることを特徴とする燃料電池。1. A stack comprising a plurality of unit cells, each of which has an anode and a cathode facing each other with an electrolyte plate sandwiched therebetween, with a separator having a gas flow path, is stacked and housed in a container. In the fuel cell, each stack in the container is held by a pair of cell clamping plates, and the pair of cell clamping plates are clamped by a clamping spring and a clamping nut so that a predetermined surface pressure is applied to the stack. At the same time, a stack support plate is arranged at the bottom of each stack, and the stack support plate is supported by support bolts so that the distance between the stack support plates is larger than the height of the stack. And a fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61006421A JPH0624137B2 (en) | 1986-01-17 | 1986-01-17 | Fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61006421A JPH0624137B2 (en) | 1986-01-17 | 1986-01-17 | Fuel cell stack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62165874A JPS62165874A (en) | 1987-07-22 |
| JPH0624137B2 true JPH0624137B2 (en) | 1994-03-30 |
Family
ID=11637905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61006421A Expired - Fee Related JPH0624137B2 (en) | 1986-01-17 | 1986-01-17 | Fuel cell stack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624137B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4119723B2 (en) * | 2002-10-11 | 2008-07-16 | 三菱重工業株式会社 | Solid oxide fuel cell power generation facility |
| JP4639583B2 (en) | 2003-03-06 | 2011-02-23 | トヨタ自動車株式会社 | Fuel cell |
| JP4956890B2 (en) | 2003-11-25 | 2012-06-20 | トヨタ自動車株式会社 | Fuel cell |
| JP4688470B2 (en) * | 2004-10-28 | 2011-05-25 | 東京瓦斯株式会社 | Power generator |
| JP4598508B2 (en) | 2004-12-22 | 2010-12-15 | 本田技研工業株式会社 | Fuel cell system |
| KR101138759B1 (en) | 2010-09-06 | 2012-04-24 | 삼성중공업 주식회사 | Fuel cell stack |
| WO2016170297A1 (en) * | 2015-04-23 | 2016-10-27 | Lg Fuel Cell Systems Inc. | Modular fuel cell system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015061A (en) * | 1983-07-07 | 1985-01-25 | Toray Ind Inc | Production of fiber reinforced metallic composite material |
| JPS6044965A (en) * | 1983-08-18 | 1985-03-11 | Mitsubishi Electric Corp | Stacked fuel cell |
-
1986
- 1986-01-17 JP JP61006421A patent/JPH0624137B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62165874A (en) | 1987-07-22 |
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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 |