JPH0311059B2 - - Google Patents
Info
- Publication number
- JPH0311059B2 JPH0311059B2 JP57145204A JP14520482A JPH0311059B2 JP H0311059 B2 JPH0311059 B2 JP H0311059B2 JP 57145204 A JP57145204 A JP 57145204A JP 14520482 A JP14520482 A JP 14520482A JP H0311059 B2 JPH0311059 B2 JP H0311059B2
- Authority
- JP
- Japan
- Prior art keywords
- blocks
- sheet
- unit
- block
- fuel cell
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011159 matrix 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
-
- 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
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/242—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes comprising framed electrodes or intermediary frame-like gaskets
-
- 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
Description
【発明の詳細な説明】
技術分野
本発明は燃料電池の積層構成に係り、特に10〜
20セル毎に組立てたユニツトブロツクを任意個積
重して電池スタツクを構成するものである。[Detailed Description of the Invention] Technical Field The present invention relates to a stacked structure of a fuel cell, and in particular,
A battery stack is constructed by stacking any number of unit blocks assembled every 20 cells.
従来技術
従来の電池スタツクは、単位セルをガス分離プ
レートを介して、多数（100〜200セル）積重し、
その上下端面に端子板・耐熱絶縁板を介して当接
する金属製端板間で締付けることにより構成され
る。Prior Art A conventional battery stack stacks a large number (100 to 200 cells) of unit cells through a gas separation plate.
It is constructed by tightening between metal end plates that abut the upper and lower end surfaces with terminal plates and heat-resistant insulating plates interposed therebetween.
しかしこのように多数積重化する際には積重部
材を整列することが難かしく、積重方向に凹凸が
生じ、そのためマニホルド取付時積重方向のシー
ル部材との密着性が悪く、シール性を損つてガス
漏れを起す原因となつていた。また、一体化され
た電池スタツクのなかで劣化の激しい又は特性の
悪い単位セルを交換するには、まずセル電極をこ
れが接着されているガス分離プレートからはず
し、次にプレートを持ち上げて新しい電極を接着
する工程を要し、多層化するにつれてこの工程が
極めて困難となり、無理にセルを交換するとこれ
又ガス漏れが生ずるなどの欠点があつた。 However, when stacking a large number of parts like this, it is difficult to align the stacking members, and unevenness occurs in the stacking direction.As a result, when the manifold is installed, the adhesion with the sealing member in the stacking direction is poor, resulting in poor sealing performance. This caused damage to the gas and caused a gas leak. Additionally, to replace a severely degraded or poorly performing unit cell in an integrated battery stack, first remove the cell electrode from the gas separation plate to which it is glued, then lift the plate and insert the new electrode. A bonding process is required, and as the number of layers increases, this process becomes extremely difficult, and if the cell is forcibly replaced, it also has the disadvantage of causing gas leakage.
発明の開示
本発明は電池スタツクを任意数のユニツトブロ
ツクに分割し、各ブロツクは、その上下端面周縁
に予め接着された枠状シール部材間に分離用シー
トを、又上下端面間に弾性導電シートを夫々介在
させて積重し、電池スタツクに組立てるものであ
る。DISCLOSURE OF THE INVENTION The present invention divides a battery stack into an arbitrary number of unit blocks, and each block has a separation sheet between the frame-shaped seal members pre-adhered to the periphery of the upper and lower end surfaces, and an elastic conductive sheet between the upper and lower end surfaces. They are stacked with each other interposed between them and assembled into a battery stack.
従つてユニツトブロツク間の分離は簡単であ
り、不良又は劣化セルを含むブロツクをブロツク
毎に交換することができる。 Separation between unit blocks is therefore simple, and blocks containing defective or degraded cells can be replaced block by block.
実施例
本発明の実施例を図について説明する
ユニツトブロツク１は第１図に示すように、陰
陽ガス極間に電解質マトリツクスを挾持した単位
セル２と、両面に夫々陰陽の反応ガス供給溝３，
４を有する炭素質ガス分離プレート５とを交互に
積重し、数セル図示例では４セル毎に冷却用空気
通路６を有する冷却プレート７を介在させて構成
される。Embodiment An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a unit block 1 includes a unit cell 2 having an electrolyte matrix sandwiched between negative and positive gas electrodes, and negative and positive reaction gas supply grooves 3 on both sides, respectively.
4 and carbonaceous gas separation plates 5 are stacked alternately, and in the illustrated example of several cells, a cooling plate 7 having a cooling air passage 6 is interposed every four cells.
このブロツク１の上下には、片面のみにガス供
給溝３又は４を有する炭素質ハーフプレート５′
を有し、このハーフプレート５′の周縁に切欠段
部８を形成している。この切欠段部８にはフツ素
系ゴムよりなる枠状シール部材９を接着剤を介し
て嵌着している。 Above and below this block 1 are carbonaceous half plates 5' having gas supply grooves 3 or 4 only on one side.
A notched stepped portion 8 is formed at the periphery of this half plate 5'. A frame-shaped sealing member 9 made of fluorocarbon rubber is fitted into this cutout step 8 via an adhesive.
このようなブロツク１を任意個数積重ねて電池
スタツクＳを構成する際には、各ブロツク１の枠
状シール部材８，８間に分離用シート１０として
厚み0.05mmのフツ素樹脂シートを介在させると共
に対向ハーフプレート５′，５′間にカーボンペー
パーよりなる弾性導電シート１１を介在させて組
立てる。ユニツトブロツク１が10セルの場合、こ
れを20ケ上記のように積重ねて200セルのスタツ
クＳが形成される。 When constructing a battery stack S by stacking any number of such blocks 1, a 0.05 mm thick fluorine resin sheet is interposed as a separating sheet 10 between the frame-shaped seal members 8, 8 of each block 1, and An elastic conductive sheet 11 made of carbon paper is interposed between opposing half plates 5' and 5' to assemble them. When unit block 1 has 10 cells, 20 of these are stacked as described above to form a stack S of 200 cells.
このようにして組立てられた電池スタツクＳは
周知のようにその上下端面に順次端子板及び耐熱
性絶縁板を介して金属製端板１２を当てがい、こ
の上下端板１２間で積重ユニツトブロツク１を図
示しない締付部材によつて締付け、電池スタツク
Ｓが完成する。 As is well known, the battery stack S assembled in this manner has metal end plates 12 sequentially applied to its upper and lower end surfaces via terminal plates and heat-resistant insulating plates, and a stacking unit block is formed between the upper and lower end plates 12. 1 is tightened by a tightening member (not shown), and the battery stack S is completed.
今、ハーフプレートの切欠段部８の高さを1.5
mm、シール部材９の厚みを約2.0mmとすれば、ス
タツクＳの締付時シール部材９，９は圧縮される
ので、ユニツトブロツク１間の導電シート１１と
しては厚み0.4〜0.5mmのカーボンペーパーを二枚
重ねて使用すれば、ユニツトブロツク１間の気密
シール性の電気的接続性とが良好に保たれる。 Now, set the height of the notch step 8 of the half plate to 1.5
If the thickness of the seal member 9 is approximately 2.0 mm, the seal members 9, 9 will be compressed when the stack S is tightened, so the conductive sheet 11 between the unit blocks 1 should be made of carbon paper with a thickness of 0.4 to 0.5 mm. If two sheets are used in a stacked manner, good airtight sealing and electrical connectivity between the unit blocks 1 can be maintained.
シール部材９，９間に介在する薄質フツ素樹脂
シート１０はフツ素系ゴムよりなるシート部材が
締付圧によつて接合するのを防止するためのもの
で、ユニツトブロツク１を交換する場合これらブ
ロツク間をこのシート部分で簡単に分離すること
ができる。 The thin fluororesin sheet 10 interposed between the seal members 9 is used to prevent the sheet members made of fluorocarbon rubber from joining together due to tightening pressure, and is used when replacing the unit block 1. These blocks can be easily separated using this sheet portion.
効 果
本発明によれば、電池スタツクは任意個数のユ
ニツトブロツクに分割され、これらユニツトブロ
ツクはその上下端面周縁に予め接合した枠状シー
ル部材間に分離用シートを、又、ブロツク端面間
に弾性導電シートを夫々介在させて積重ねている
のでブロツク間のシール性及び導電性が良好で反
応ガス漏れや各ガス間の接触がなく、多数積重ね
た場合も電圧低下を極めて小さくすることができ
る。Effects According to the present invention, a battery stack is divided into an arbitrary number of unit blocks, and these unit blocks have a separating sheet between the frame-shaped seal members preliminarily joined to the periphery of the upper and lower end faces, and an elastic seal between the end faces of the blocks. Since the blocks are stacked with conductive sheets interposed between them, the sealing properties and conductivity between the blocks are good, there is no reaction gas leakage or contact between each gas, and even when a large number of blocks are stacked, the voltage drop can be extremely small.
又、劣化セルはブロツク毎に交換すればよいの
で、従来のセル交換に比べて簡単になると共に、
シール部材間に介在する薄質フツ素樹脂シートの
ような分離性のよいシートが、シール部材間の接
合を防止し、この部分からシール部材は損うこと
なくユニツトブロツクを分離することができるな
どの利点があり、積重数の極めて大きい燃料電池
においてすぐれた効果を発揮する。 In addition, since deteriorated cells can be replaced block by block, it is easier than conventional cell replacement, and
A sheet with good separability, such as a thin fluororesin sheet, interposed between the seal members prevents the seal members from joining, and the unit block can be separated from this part without damaging the seal members. It has the following advantages and exhibits excellent effects in fuel cells with an extremely large number of stacks.
第１図は本発明によるユニツトブロツクの斜面
図、第２図はユニツトブロツクを積重してなる電
池スタツクの要部斜面図、第３図はユニツトブロ
ツク接合部の要部拡大断面図である。
１……ユニツトブロツク、２……単位セル、５
……ガス分離プレート、５′……ハーフプレート、
７……冷却板、８……切欠段部、９……枠状シー
ル部材、１０……分離用シート、１１……弾性導
電シート。
FIG. 1 is a perspective view of a unit block according to the present invention, FIG. 2 is a perspective view of a main part of a battery stack formed by stacking unit blocks, and FIG. 3 is an enlarged sectional view of a main part of a unit block joint. 1...Unit block, 2...Unit cell, 5
...Gas separation plate, 5'...Half plate,
7...Cooling plate, 8...Notch step, 9...Frame-shaped sealing member, 10...Separation sheet, 11...Elastic conductive sheet.
Claims (1)
よりなるユニツトブロツクの上下端面周縁に枠状
シール部材を接合し、これらブロツクが、前記各
シール部材間に分離用シートを、又ブロツク各端
面間に弾性導電シートを夫々介在して任意個数積
重され、電池スタツクを構成していることを特徴
とする燃料電池。 ２ 前記ブロツクの上下端面に位置するハーフプ
レート周縁には、前記枠状シール部材が嵌着する
切欠段部が形成されていることを特徴とする特許
請求の範囲第１項記載の燃料電池。 ３ 前記シール部材は、フツ素系ゴムであり、前
記分離用シートは薄質フツ素樹脂シートであるこ
とを特徴とする特許請求の範囲第１項記載の燃料
電池。[Scope of Claims] 1. A frame-shaped sealing member is joined to the upper and lower end surfaces of a unit block consisting of an alternating stack of unit cells and gas separation plates, and these blocks have a separating sheet between each of the sealing members, Further, a fuel cell characterized in that a desired number of blocks are stacked with elastic conductive sheets interposed between their end faces to form a cell stack. 2. The fuel cell according to claim 1, wherein a notch step into which the frame-shaped seal member is fitted is formed on the peripheral edge of the half plate located on the upper and lower end surfaces of the block. 3. The fuel cell according to claim 1, wherein the sealing member is made of fluorine rubber, and the separation sheet is a thin fluorine resin sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57145204A JPS5935368A (en) | 1982-08-20 | 1982-08-20 | Layer-built fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57145204A JPS5935368A (en) | 1982-08-20 | 1982-08-20 | Layer-built fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5935368A JPS5935368A (en) | 1984-02-27 |
| JPH0311059B2 true JPH0311059B2 (en) | 1991-02-15 |
Family
ID=15379808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57145204A Granted JPS5935368A (en) | 1982-08-20 | 1982-08-20 | Layer-built fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935368A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0635672B2 (en) * | 1984-05-09 | 1994-05-11 | 三井東圧化学株式会社 | Ion exchange membrane electrolytic cell |
| JPH0697616B2 (en) * | 1985-08-23 | 1994-11-30 | 株式会社日立製作所 | Laminated fuel cell |
| JPH0638345B2 (en) * | 1986-07-08 | 1994-05-18 | 三菱電機株式会社 | Fuel cell |
| EP0530451B1 (en) * | 1991-09-03 | 1998-01-21 | Sanyo Electric Co., Ltd. | A solid oxide fuel cell system |
| EP1481439B1 (en) * | 2002-01-23 | 2007-07-18 | Paul Scherrer Institut | Device for stacking fuel cells |
| JP5260403B2 (en) * | 2008-05-13 | 2013-08-14 | 日本電信電話株式会社 | Flat type solid oxide fuel cell stack |
-
1982
- 1982-08-20 JP JP57145204A patent/JPS5935368A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5935368A (en) | 1984-02-27 |
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