JPS61121266A - Draining and drainage of fuel cell - Google Patents
Draining and drainage of fuel cellInfo
- Publication number
- JPS61121266A JPS61121266A JP59242715A JP24271584A JPS61121266A JP S61121266 A JPS61121266 A JP S61121266A JP 59242715 A JP59242715 A JP 59242715A JP 24271584 A JP24271584 A JP 24271584A JP S61121266 A JPS61121266 A JP S61121266A
- Authority
- JP
- Japan
- Prior art keywords
- stack
- reaction gas
- fuel cell
- gas supply
- manifold
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
-
- 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
- Fuel Cell (AREA)
- 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)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、燃ｎｔ池の組立時において反応ガス溝に入り
込んだ過剰電解液を取除く方法と装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a method and apparatus for removing excess electrolyte that has entered a reaction gas groove during assembly of a fuel cell.
〈口〉 従来の技術
燃料電池は、スタック構成要素の積重時燐酸電解液を両
電極及びマトリックスに含浸さ１τるが、この際電解液
の分布を均一化するため、若干過剰の電解液を加え、ス
タック締付時反応ガス供給溝と
ニアふれた過剰分を排出させる方法ｔと−）ている。<Note> In conventional fuel cells, both electrodes and the matrix are impregnated with phosphoric acid electrolyte for 1τ when the stack components are stacked together. In addition, there is a method for discharging the excess gas that comes into close contact with the reaction gas supply groove when the stack is tightened.
従来このような反応ガス供給溝をふきいた過剰電解液を
抜き取る場合電池スタックをその反応ガス供給溝開口面
が下向きになるよう設置し、保温放置することにより行
なわれていた。又別の方法として反応ガス供給溝開口面
の一方よりＮ２ガスなとの乾燥気１本を吹き込み開口面
の他方から真空ポンプで引くなとの操作を行っていた。Conventionally, when removing excess electrolyte from the reactive gas supply grooves, the battery stack was installed with the open surface of the reactive gas supply grooves facing downward, and the battery stack was left warm. As another method, a single dry gas such as N2 gas is blown into one opening of the reaction gas supply groove and drawn from the other opening with a vacuum pump.
しかし、前者の方法は液抜きに時間がかかりす゛ざると
共に複雑なパターンのガス溝形状の場合には液が抜けな
いなどの欠点がある。一方後者の方法は特定のガス溝内
に圧力がかかりすぎて電極を痛めると共に複雑なパター
ンのガス溝形状の場合液抜きが完全にできないなどの欠
点があった。However, the former method has drawbacks such as it takes a long time to drain the liquid and the liquid cannot be drained if the gas groove has a complicated pattern. On the other hand, the latter method has disadvantages such as too much pressure being applied within a particular gas groove, damaging the electrode, and in the case of a complicated pattern of gas grooves, complete drainage of liquid is impossible.
（ハ）発明が解決しようとする問題点
この発明は電池スタックの過剰電解液を早く確実に且電
極を痛めないよう行うことにより燃料電池の特性を向上
させることである。(c) Problems to be Solved by the Invention The object of the invention is to improve the characteristics of a fuel cell by removing excess electrolyte from a cell stack quickly and reliably without damaging the electrodes.
（ニ）問題を解決するための手段
この発明は電池スタックの反応ガス供給溝開口面の一方
を下向きにして前記スタックを水平軸のまわりに揺動許
せつつ、前記開口面の他方に取付けたマニホルドより高
温乾燥気体を吹付けるものである。(d) Means for Solving the Problem This invention provides a manifold that is attached to the other of the opening surfaces of the reaction gas supply grooves of the battery stack, with one of the opening surfaces of the reaction gas supply groove facing downward and allowing the stack to swing around a horizontal axis. It sprays a higher temperature dry gas.
（ホ）作用
この発明によれば、複雑なパターンの各反応ガス供給溝
に溜った過剰電解液や電極撥水層に付着している電解液
は揺動運動と高温乾燥気体の吹付けにより速やかに且完
全に排出され、電池スタックへの各反応ガスの供給が円
滑に行なわれる。(E) Effect According to this invention, the excess electrolyte accumulated in each reaction gas supply groove of a complicated pattern and the electrolyte attached to the electrode water-repellent layer are quickly removed by the rocking motion and the spraying of high-temperature dry gas. The reactant gases are completely discharged, and each reaction gas is smoothly supplied to the battery stack.
くべ）実施例
電池スタック（１）は、正負対向電極間にマトリックス
を介挿してなる単位セル（２）と表裏両面に夫々水素ガ
ス供給溝（３）及び空気供給溝（４）庖形設したガス分
離板（５）とを交互に積重し、数屯位セル毎に冷却空気
通路（６）を有する冷却板（７）を介在させて構成され
る。燐酸寛解液はスタックの積重時マトリックス及び電
極に過剰に含浸される。電池スタック（１）の上下端板
（８）（８）間は、Ｘ字状押圧片（９）と対向する抑圧
片の各端部に挿通した連杆（１０）とバネを介して各連
杆（１０）に螺合する締付ナットク１１〉により、スタ
ックく１〉を積重方向に押圧する。A) Example battery stack (1) had a unit cell (2) formed by interposing a matrix between positive and negative opposing electrodes, and a hydrogen gas supply groove (3) and an air supply groove (4) formed on both the front and back surfaces, respectively. Gas separation plates (5) are stacked alternately, and cooling plates (7) having cooling air passages (6) are interposed every few cells. The phosphoric acid relieving solution is excessively impregnated into the matrix and electrodes during stacking. The upper and lower end plates (8) (8) of the battery stack (1) are connected by connecting rods (10) inserted through each end of the suppressing piece facing the X-shaped pressing piece (9) and a spring. A tightening nut 11〉 screwed onto the rod (10) presses the stack 1〉 in the stacking direction.
このスタック締付は時過剰電解液はマトリックス及び電
極に均一に含浸され、過剰分が電極より反応ガス供給溝
（３）（４）にあふれてこれをふさいだ状態となってい
る。又電極の撥水層にも余分の電解液が付着した状態に
ある。When this stack is tightened, the matrix and electrodes are uniformly impregnated with excess electrolyte, and the excess overflows from the electrodes into the reaction gas supply grooves (3) and (4), blocking them. Further, excess electrolyte is also attached to the water-repellent layer of the electrode.
本発明はこのような電解液を反応ガス供給溝＜３＞（４
）から除去する方法と装置を提供するものである。The present invention supplies such an electrolyte to the reaction gas supply groove <3> (4).
) provides a method and apparatus for removing it from
電池スタック（１）の一対の押圧片（９）（９）には夫
々回転治具（１２）（１２）を取付け、これら治具（１
２）を支持台（１３）の一対の軸受（１４）に嵌め、電
池スタック（１）をその反応ガス供給溝開口面の一方が
下向きになるよう枢支する。水素ガス側と空気側に分離
していないマニホルド冶具（１５）（１６）を上下一対
の供給溝開口面に取付ける。上方のマニホルド冶具（１
５）はフレキシブルダクト（１７）を介してブロワ（１
８）の吐出管（１９）に連結きれ、前記吐出管（１９）
にヒーター（２０〉が内設されている。下方のマニホル
ド治具（１６）は支持台（１３）に装設した排液受皿（
２１）にのぞませている。Rotating jigs (12) (12) are attached to the pair of pressing pieces (9) (9) of the battery stack (1), respectively.
2) is fitted into a pair of bearings (14) of a support base (13), and the battery stack (1) is pivotally supported such that one of its reaction gas supply groove opening faces downward. Manifold jigs (15) and (16), which are not separated into hydrogen gas and air sides, are attached to the opening surfaces of the pair of upper and lower supply grooves. Upper manifold jig (1
5) is connected to the blower (1) via the flexible duct (17).
The discharge pipe (19) can be connected to the discharge pipe (19) of 8).
A heater (20) is installed inside the lower manifold jig (16).
21).
モーター（図示せず）に直結されたクランク円板（２２
）と抑圧片（９）の一端とはロッド（２３）で連結され
、モーターの回転により電池スタック（１）を揺動許せ
る手段を構成する。A crank disc (22
) and one end of the suppressing piece (9) are connected by a rod (23), and constitute means that allows the battery stack (1) to swing by rotation of the motor.
このような本発明装置はドライルーム内におかれ、ブロ
ワ（１８）の駆動によりルーム内の乾燥空気はヒーター
（２０）で約１００℃程度に加熱され、フレキノプルダ
クト（１７）及びマニホルド治具（１５）を介して電池
スタック面に吹付けられる。この吹付は空気はスタック
面に並設された水素ガス供給溝（３）及び空気供給溝（
４）の各開口より夫々溝内に送り込まれる。The device of the present invention is placed in a dry room, and the dry air in the room is heated to about 100°C by the heater (20) by driving the blower (18), and the flexible pull duct (17) and manifold treatment are heated. It is sprayed onto the battery stack surface through the tool (15). In this spraying, air is supplied to the hydrogen gas supply groove (3) and air supply groove (3) arranged in parallel on the stack surface.
4) are fed into the grooves through the respective openings.
これと同時にり・ランク円板（２２）の回転により電池
スタック（１〉は所定角度で揺動するため、複雑なパタ
ーンの各供給溝（３）（４）に溜っている電解液は、パ
ターンの全面に亘って出やすいようになって、前記の吹
付は空気と共に下方マニホルド治具（１６）に集められ
て後、排液受皿（２１）に落下する。触媒層と撥水層の
二重層よりなる電極の撥水層は各供給１（３）（４）に
接しているので、この撥水府内の電解液も除去された反
応ガスの拡散性を保つ。At the same time, the battery stack (1) swings at a predetermined angle due to the rotation of the lift/rank disc (22), so that the electrolyte accumulated in each of the supply grooves (3) and (4) in the complicated pattern is The spray is collected together with air in the lower manifold jig (16) and then falls into the drain tray (21).The double layer of catalyst layer and water repellent layer Since the water-repellent layer of the electrode is in contact with each supply 1 (3) (4), the electrolyte in this water-repellent layer also maintains the diffusivity of the removed reaction gas.
尚、排液受皿（２１）の上側面開口をダクｉ、、（２４
）によりブロワ（１８）の吸込口り２５）に連通すれは
、排出された加熱乾燥空気は循環して再び電池メタ／７
（１）に吹付けることができる。In addition, the upper side opening of the drain tray (21) is
) to the suction port 25) of the blower (18), the discharged heated dry air is circulated and returned to the battery metal/7.
(1) can be sprayed.
以上はセル積層数が少ない場合について説明したが、積
層数が３００セルにもなる電池メタ／りでは、これを１
０ブロツクに分けて先ず３０セルスタンクを１０ケ構成
し、これらを第２図の如く締付後、予備テストが行なわ
れる。予備テスト終了後のスタックは締付部材をはずし
て後これら３０セルスタンクを１０ケ積重ねて本締付を
行うことにより３００セルスタツクを構成する。このよ
うなセル積層数の多い電池スタックでは前記予備テスト
を行う前の電池サブスタックに本発明を適用すればよい
。The above explanation is for the case where the number of stacked cells is small, but in a battery meta/rep where the number of stacked cells is as high as 300 cells, this is
First, 10 30 cell tanks were constructed by dividing into 0 blocks, and after tightening them as shown in FIG. 2, a preliminary test was conducted. After completing the preliminary test, the stack is constructed by removing the tightening member, stacking 10 of these 30-cell tanks, and performing main tightening to form a 300-cell stack. In such a battery stack having a large number of laminated cells, the present invention may be applied to a battery substack before the preliminary test is performed.
（へ）効果
この発明によれば、電池スタックの締付時複雑なパター
ンの各反応ガス供給溝や電極の撥水層に溜った過剰電解
液は、これら供給溝開口面の一方を下向きにして行なわ
れる電池スタックの揺動運動と、開口面の他方からマニ
ホルド治具を介して吹付けられる１％温乾燥気体とによ
り、速やかに且完全に排出することができる。したがっ
て電池スタックへの反応ガスの供給が円滑に行なわれ電
池性能の向上に資するものである。(F) Effect According to this invention, when the battery stack is tightened, excess electrolyte accumulated in the complex pattern of reaction gas supply grooves and the water-repellent layer of the electrode is removed by turning one of the opening surfaces of these supply grooves downward. The oscillating movement of the battery stack and the 1% warm dry gas blown from the other side of the opening via the manifold jig make it possible to quickly and completely discharge the battery. Therefore, the reactive gas is smoothly supplied to the battery stack, contributing to improvement in battery performance.
第１図は本発明による排液装置の正面図、第２図は同上
装置の一部斜面図である。
１：電池スタック、２；単位セル、３．４：各反応ガス
供給溝、５：ガス分離板、８：メタ７り端板、９：押圧
片、１０：連杆、１１：締付ナツト、１２：回転治具、
１３：支持台、１４：軸受、１５．１６：マニホルド治
具、１７：フレキシブルダクト、１８ニブロア、２０：
ヒーター、２１：排液受皿、２２：クランク円板、２３
：ロッド。FIG. 1 is a front view of a liquid drainage device according to the present invention, and FIG. 2 is a partial perspective view of the same device. 1: battery stack, 2: unit cell, 3.4: each reaction gas supply groove, 5: gas separation plate, 8: metal end plate, 9: pressing piece, 10: continuous rod, 11: tightening nut, 12: Rotating jig,
13: Support stand, 14: Bearing, 15.16: Manifold jig, 17: Flexible duct, 18 Ni blower, 20:
Heater, 21: Drainage tray, 22: Crank disc, 23
:rod.
Claims (2)
向きにして前記スタックを水平軸のまわりに揺動させる
と共に前記開口面の他方に取付けたマニホルドより高温
乾燥気体を吹付け、前記反応ガス溝に溜った電解液を排
出せしめることを特徴とする燃料電池の排液方法。(1) The stack is swung around a horizontal axis with one of the opening surfaces of the reaction gas supply groove of the battery stack facing downward, and high-temperature dry gas is blown from a manifold attached to the other opening surface of the battery stack, and the reaction gas is A fuel cell draining method characterized by draining electrolyte accumulated in a groove.
方が下向きになるよう、一対の回転治具により枢支した
支持台、前記スタックの前記開口面の他方に取付けたマ
ニホルド治具、このマニホルド治具にブロワによる高温
乾燥気体を吹込むフレキシブルダクト及び前記電池スタ
ックを前記支持台で枢支軸のまわりに揺動させる手段と
を備える燃料電池の排液装置。(2) A support base on which the battery stack is pivotally supported by a pair of rotating jigs so that one of the opening faces of the reaction gas supply groove faces downward; a manifold jig attached to the other of the opening faces of the stack; A liquid draining device for a fuel cell, comprising: a flexible duct for blowing high-temperature dry gas into a manifold jig using a blower; and means for swinging the cell stack around a pivot shaft on the support stand.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59242715A JPH0695461B2 (en) | 1984-11-16 | 1984-11-16 | Fuel cell drainage method and drainage device |
| CN85109116A CN1008958B (en) | 1984-11-16 | 1985-11-16 | Method and device for discharging excess electrolyte from a fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59242715A JPH0695461B2 (en) | 1984-11-16 | 1984-11-16 | Fuel cell drainage method and drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61121266A true JPS61121266A (en) | 1986-06-09 |
| JPH0695461B2 JPH0695461B2 (en) | 1994-11-24 |
Family
ID=17093159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59242715A Expired - Fee Related JPH0695461B2 (en) | 1984-11-16 | 1984-11-16 | Fuel cell drainage method and drainage device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0695461B2 (en) |
| CN (1) | CN1008958B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008257889A (en) * | 2007-03-30 | 2008-10-23 | Equos Research Co Ltd | Fuel cell system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584818B (en) * | 2020-05-25 | 2022-04-26 | 中国人民解放军空军勤务学院 | Storage battery electrolyte replacing platform |
-
1984
- 1984-11-16 JP JP59242715A patent/JPH0695461B2/en not_active Expired - Fee Related
-
1985
- 1985-11-16 CN CN85109116A patent/CN1008958B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008257889A (en) * | 2007-03-30 | 2008-10-23 | Equos Research Co Ltd | Fuel cell system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0695461B2 (en) | 1994-11-24 |
| CN1008958B (en) | 1990-07-25 |
| CN85109116A (en) | 1986-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |