JPS61230273A - Stack end plate of fuel cell - Google Patents

Stack end plate of fuel cell

Info

Publication number
JPS61230273A
JPS61230273A JP60070343A JP7034385A JPS61230273A JP S61230273 A JPS61230273 A JP S61230273A JP 60070343 A JP60070343 A JP 60070343A JP 7034385 A JP7034385 A JP 7034385A JP S61230273 A JPS61230273 A JP S61230273A
Authority
JP
Japan
Prior art keywords
end plate
cover plates
frame
plates
drawn
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.)
Pending
Application number
JP60070343A
Other languages
Japanese (ja)
Inventor
Masaru Tsutsumi
堤　勝
Hideo Hagino
秀雄 萩野
Kazushi Goto
後藤　一志
Osamu Fujiwara
治 藤原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP60070343A priority Critical patent/JPS61230273A/en
Publication of JPS61230273A publication Critical patent/JPS61230273A/en
Pending legal-status Critical Current

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
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0206—Metals or alloys
    • 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
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • 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
    • H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
    • 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

PURPOSE:To realize light weight by forming a stack end plate with both side cover plates and drawn material, having special shape, arranged flatly between the cover plates. CONSTITUTION:An end plate 1 consists of both side cover plates 2, 3 and drawn aluminum material 4 arranged flatly between the cover plates. The drawn material 4 has vertical long frames 6 and a pair of upper and lower connecting parts 7. The drawn material 4 is flatly arranged by bringing the connecting part 7 of the frame 6 into contact with the back of an adjacent frame 6, and the upper and lower surfaces of the frame 6 are brazed to inner surface of the cover plates 2, 3. The weight of the end plate is reduced to about 60% compared with conventional thick plate and mechanical strength against compression and bending stress is kept almost the same as the conventional one.

Description

【発明の詳細な説明】 ０）　産業上の利用分野 この発明は積層燃料電池において、電池スタックを積重
方向に圧縮する上下端板忙関するものである。DETAILED DESCRIPTION OF THE INVENTION 0) Industrial Application Field The present invention relates to upper and lower end plates for compressing a cell stack in the stacking direction in a stacked fuel cell.

（ロ）従来の技術 周知のように電池スタックは、単位セルと炭素質ガス分
離板とを交互に多数積重してその上下より集電板及び耐
熱絶縁板を介し金属端板間で積重方向に圧縮される。こ
の場合上下端板は締付部材により締付けられるため機械
的強度が要求され、従来は厚み３０〜４０−程度の鉄も
しくはアルミニウムの厚板を使用していた。しかし電池
の大容量化にともない電池積重部材の寸法が大きくなる
と、それと同寸法の端板は非常圧電くなり、電池スタッ
クの組立、運搬などに支障を来たすという問題があった
。(b) Conventional technology As is well known, a battery stack is made by stacking a large number of unit cells and carbonaceous gas separation plates alternately, and stacking them from above and below between metal end plates via current collector plates and heat-resistant insulating plates. compressed in the direction In this case, since the upper and lower end plates are tightened by a tightening member, mechanical strength is required, and conventionally thick iron or aluminum plates with a thickness of about 30 to 40 mm have been used. However, as the capacity of batteries increases, the dimensions of the battery stacking member increase, and end plates of the same dimensions become extremely piezoelectric, which poses a problem that poses a problem in assembling and transporting the battery stack.

（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上下端板を軽量化して前記問
題点を解決するものである。(c) Problems to be Solved by the Invention The present invention solves the above-mentioned problems by reducing the weight of the upper and lower end plates of the battery stack.

に）問題点を解決する九めの手段 この発明の端板は、表裏各覆板とこれら覆板間に平面的
に配列される多数のアル１＝ウム引抜素材とからなり、
前記各素材は、その長さが前記覆板の一辺長に略等しく
、その断面形状が横桟で補強された縦長枠体とこの枠体
の一側面より一体に突設して隣接する前記枠体の他側面
に当接する少くとも上下一対の連結桟を有し、前記各枠
体の上下面を前記各覆板内面に接合して構成される。Ninth Means for Solving the Problem The end plate of the present invention is composed of front and back cover plates and a large number of aluminum drawn materials arranged in a plane between the cover plates,
Each of the materials has a length that is approximately equal to the side length of the cover plate, and a cross-sectional shape that includes a vertically elongated frame reinforced with horizontal bars and the adjacent frame integrally protruding from one side of the frame. It has at least a pair of upper and lower connecting bars that come into contact with the other side of the body, and is constructed by joining the upper and lower surfaces of each of the frame bodies to the inner surface of each of the cover plates.

（ホ）作　用 この発明による端板は、表裏各種板間に平面的に配列し
た多数のアルミニウム引抜素材がコア材を構成している
ので、従来の厚板に比し重量を低減しうると共に、各素
材の形状が横桟で補強された縦長枠体とその一側面より
突設する連結桟とを有し、これら縦長枠体の連結桟を順
次隣接枠体の他側面に当接するよう配列して後各枠体の
上下面を各覆板内面に接合しているので、従来の厚板と
同程度の圧縮、曲げ応力に耐え得る強度をもつ。(e) Function The end plate according to the present invention has a core material made of a large number of drawn aluminum materials arranged in a plane between the front and back various plates, so it can reduce the weight compared to conventional thick plates. , the shape of each material has a vertically long frame reinforced with horizontal bars and a connecting bar protruding from one side thereof, and the connecting bars of these vertically long frames are arranged so as to contact the other side of the adjacent frame in sequence. Since the upper and lower surfaces of each frame are then joined to the inner surface of each cover plate, it has the strength to withstand compression and bending stress to the same extent as conventional thick plates.

（へ）実施例 本発明の実施例を図忙ついて説明する。(f) Example Embodiments of the present invention will be explained in detail.

本発明の端板（１）は第１図に示すよう表裏各覆板＋２
０３１と、これら覆板間に平面的に多数配列されたアル
ミニウム引抜素材（４）とからまる。The end plate (1) of the present invention has a front and back cover plate + 2
031 and a large number of drawn aluminum materials (4) arranged two-dimensionally between these cover plates.

前記引抜素材（４）は、第２図に示すように七の長さが
覆板の一辺長に略等しく、その断面形状が横桟（５１で
補強された縦長枠体（６）とこの枠体（６）の−側面よ
り一体に突設した上下一対の連結桟（７）を有し、これ
ら枠体（６）及び各校（５Ｈｙ）の材厚は約１１１１Ｉ
で充分であり、又枠体（６）の縦横各寸法は夫々的２７
ｍと７−１連結浅（７）の寸法は約５■である。尚この
引抜素材（４）はアルミサツシュと同様に長尺に引抜い
たものを所定寸法忙切断すればよい。As shown in Fig. 2, the drawn material (4) has a length of 7 approximately equal to the length of one side of the cover plate, and a cross-sectional shape of the drawn material (4), which has a horizontal cross section (51) and a vertically elongated frame (6) reinforced with this frame. It has a pair of upper and lower connecting bars (7) that protrude integrally from the side of the body (6), and the material thickness of the frame (6) and each frame (5Hy) is approximately 1111I.
is sufficient, and the vertical and horizontal dimensions of the frame (6) are respectively 27.
The dimensions of m and 7-1 connecting shallow (7) are approximately 5cm. Note that this drawn material (4) may be drawn into a long length and cut into predetermined dimensions in the same manner as the aluminum sash.

このような引抜素材（４）は、各枠体（８）の連結桟（
７）が隣接枠体（６）の背面に当接して平面的に配列さ
れると共に各枠体（６）の上下面を各覆板１２１（３１
の内面にろう付されて端板（１）を構成する。最端の連
結桟に対しＩＥＩ図実施例のように別途アルミ板（８）
を当接して枠体（６）と同様覆板にろう付するか、もし
くはこの連結桟を切断して枠体により端面を形成すれば
よい。Such a drawn material (4) is attached to the connecting crosspiece (
7) are arranged in a plane in contact with the back surface of the adjacent frame body (6), and the upper and lower surfaces of each frame body (6) are connected to each cover plate 121 (31).
is brazed to the inner surface of the end plate (1). Separately attach an aluminum plate (8) to the end connecting crosspiece as shown in the IEI diagram example.
may be brought into contact with the frame body (6) and brazed to the cover plate in the same manner as the frame body (6), or the connecting beam may be cut to form an end face using the frame body.

表裏各覆板１！１ｔ３１は厚み４ｍ程度のアルＳ＋＋ウ
ムで強度的に充分であるが、表覆板（２）の厚みは、後
述する締付部材の受台が嵌る位置ぎめ凹所１２）を形成
するためと締付力の受面となるため６露程度としている
。この端板（１）は全厚みが約３５〜４０ｗ１゜であり
、同一寸法のアルミニウム厚板製端板に比し、重量を６
０１程度に低減することができる。The front and back cover plates 1!1t31 are made of Al S++ aluminum with a thickness of about 4 m, which is sufficient for strength, but the thickness of the front cover plate (2) is determined by the positioning recess 12) into which the holder of the tightening member, which will be described later, fits. The thickness is set at about 6 dew to form a ridge and to serve as a receiving surface for the tightening force. This end plate (1) has a total thickness of approximately 35 to 40 w1°, and weighs 6.5 mm compared to an end plate made of thick aluminum plate of the same size.
It can be reduced to about 0.01.

電池スタック（８）の上下に位置するとの端板＋１）は
、従来と同様第３図に示すように、締付部材にょシスタ
ックを積重方向に圧縮する。即ち各端板（ｊ）の凹所（
２１に嵌めた受台（９）を介してタイバー（Ｉ（１１（
１ａｌを支持し、タイバーの上下対向端間を連結する各
タイロッド（Ｉｔ）Ｉｃスプリングα乃とワッシャα４
を介してナツト０４を螺合し、上下端板（１）間で単位
セル輛とガス分離板端などの交互積重体を締付けて電池
スタック（句を構成する。第３図の端板（１）は、第１
図のように一方の対向端面に引抜素材（４）が露出する
がこの点第３図では省略されている。The end plates (+1) located above and below the battery stack (8) compress the stack in the stacking direction by the tightening members, as shown in FIG. 3, as in the conventional case. That is, the recess (
Connect the tie bar (I (11) through the cradle (9) fitted to the
Each tie rod (It) Ic supporting the upper and lower ends of the tie bar and the washer α4
Screw the nuts 04 together through the upper and lower end plates (1), and tighten the alternating stack of unit cells and gas separation plate ends between the upper and lower end plates (1) to form a battery stack (Fig. 3). ) is the first
As shown in the figure, a drawn material (4) is exposed on one opposing end surface, but this point is omitted in FIG. 3.

（ト）　　発明の効果 本発明の端板は、表裏覆板とその間に平面的に配列され
た特殊形状の引抜素材により構成されているので、従来
の厚板に比し約６０チ程度に軽量化が可能でしかも同程
度の圧縮、曲げ応力に耐えうる強度を有し、組立運搬が
それだけ有利となると共に、電池スタック重量の軽減化
に役立つ。(G) Effects of the Invention The end plate of the present invention is composed of front and back cover plates and specially shaped drawn materials arranged in a plane between them, so it is about 60 inches lighter than conventional thick plates. Moreover, it has the strength to withstand compression and bending stress of the same degree, which makes it easier to assemble and transport, and helps reduce the weight of the battery stack.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明によるスタック端板の斜面図、第２図は
同上に用いた引抜素材の斜面図、第３図は本発明端板を
備える電池スタックの斜面図である。 １・・・端板、２．３・・・覆板、４・・・引抜素材、
５・・・横桟、６・・・枠体、７・・・連結桟。FIG. 1 is a perspective view of a stack end plate according to the present invention, FIG. 2 is a perspective view of a drawn material used in the same, and FIG. 3 is a perspective view of a battery stack provided with the end plate of the present invention. 1... End plate, 2.3... Cover plate, 4... Pulled material,
5...Horizontal bar, 6...Frame body, 7...Connecting bar.

Claims (1)

【特許請求の範囲】[Claims] １　電池スタックの上下に位置し締付部材により前記ス
タックを圧縮する端板であつて、表裏各覆板とこれら覆
板間に平面的に配列される多数のアルミニウム引抜素材
とからなり、前記各素材は、その長さが前記覆板の一辺
長に略等しく、その断面形状が横桟で補強され縦長枠体
と、この枠体の一側面より一体に突設して隣接する枠体
の他側面に当接する少くとも上下一対の連結桟とを有し
、前記各枠体の上下面が前記各覆板内面に接合されてい
ることを特徴とする燃料電池のスタック端板。1 An end plate located above and below a battery stack and compressing the stack by a tightening member, consisting of front and back cover plates and a number of drawn aluminum materials arranged in a plane between these cover plates, and each of the above-mentioned The length of the material is approximately equal to the length of one side of the cover plate, and its cross-sectional shape is reinforced with horizontal bars to form a vertically elongated frame body and an adjacent frame body integrally protruding from one side of this frame body. What is claimed is: 1. A fuel cell stack end plate comprising at least a pair of upper and lower connecting beams that abut side surfaces, and wherein the upper and lower surfaces of each of the frame bodies are joined to the inner surface of each of the cover plates.
JP60070343A 1985-04-03 1985-04-03 Stack end plate of fuel cell Pending JPS61230273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60070343A JPS61230273A (en) 1985-04-03 1985-04-03 Stack end plate of fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60070343A JPS61230273A (en) 1985-04-03 1985-04-03 Stack end plate of fuel cell

Publications (1)

Publication Number Publication Date
JPS61230273A true JPS61230273A (en) 1986-10-14

Family

ID=13428672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60070343A Pending JPS61230273A (en) 1985-04-03 1985-04-03 Stack end plate of fuel cell

Country Status (1)

Country Link
JP (1) JPS61230273A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620609A1 (en) * 1993-03-26 1994-10-19 Daimler-Benz Aktiengesellschaft Electrochemical multicell-battery
US20120088174A1 (en) * 2010-10-08 2012-04-12 Gm Global Technology Operations, Inc. Composite end cell thermal barrier with an electrically conducting layer
FR2971090A1 (en) * 2011-02-02 2012-08-03 Peugeot Citroen Automobiles Sa CURRENT COLLECTOR PLATE FOR FUEL CELL, COMPRISING DRILLS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620609A1 (en) * 1993-03-26 1994-10-19 Daimler-Benz Aktiengesellschaft Electrochemical multicell-battery
US20120088174A1 (en) * 2010-10-08 2012-04-12 Gm Global Technology Operations, Inc. Composite end cell thermal barrier with an electrically conducting layer
US9029033B2 (en) * 2010-10-08 2015-05-12 GM Global Technology Operations LLC Composite end cell thermal barrier with an electrically conducting layer
FR2971090A1 (en) * 2011-02-02 2012-08-03 Peugeot Citroen Automobiles Sa CURRENT COLLECTOR PLATE FOR FUEL CELL, COMPRISING DRILLS
WO2012104555A1 (en) * 2011-02-02 2012-08-09 Peugeot Citroën Automobiles S.A. Current collecting plate pierced with horizontal holes, intended for a fuel cell

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