DE102009059766A1 - Method for production of contact areas in bipolar plates of fuel cell stack, involves stacking of plates one above other, and controlling notching tool for arranging pin in one plate, and setting plug on pin by plates - Google Patents
Method for production of contact areas in bipolar plates of fuel cell stack, involves stacking of plates one above other, and controlling notching tool for arranging pin in one plate, and setting plug on pin by plates Download PDFInfo
- Publication number
- DE102009059766A1 DE102009059766A1 DE102009059766A DE102009059766A DE102009059766A1 DE 102009059766 A1 DE102009059766 A1 DE 102009059766A1 DE 102009059766 A DE102009059766 A DE 102009059766A DE 102009059766 A DE102009059766 A DE 102009059766A DE 102009059766 A1 DE102009059766 A1 DE 102009059766A1
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- Germany
- Prior art keywords
- bipolar plates
- plates
- fuel cell
- cell stack
- pin
- 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.)
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Classifications
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- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
-
- 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
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
-
- 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
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
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- 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
-
- 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
- H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
-
- 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
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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Kontaktstellen an Bipolarplatten eines Brennstoffzellenstapels, wobei die Bipolarplatten planparallel übereinander gestapelt sind. Des Weiteren betrifft die Erfindung einen Brennstoffzellenstapel mit Kontaktstellen an den Bipolarplatten.The invention relates to a method for producing contact points on bipolar plates of a fuel cell stack, wherein the bipolar plates are stacked plane-parallel one above the other. Furthermore, the invention relates to a fuel cell stack with contact points on the bipolar plates.
Aus der
Der Erfindung liegt die Aufgabe zugrunde, ein einfaches Verfahren zur Herstellung von Kontaktstellen an Bipolarplatten eines Brennstoffzellenstapels anzugeben.The invention has for its object to provide a simple method for producing contact points on bipolar plates of a fuel cell stack.
Die Aufgabe wird erfindungsgemäß mit einem Verfahren gelöst, welches die im Anspruch 1 angegebenen Merkmale aufweist.The object is achieved by a method having the features specified in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Beim erfindungsgemäßen Verfahren zur Herstellung von Kontaktstellen an planparallel übereinander gestapelten Bipolarplatten eines Brennstoffzellenstapels werden mittels eines mechanischen Trennwerkzeugs, insbesondere eines Stanzwerkzeugs, mit einem Nocken-Mechanismus in eine vorgebbare Anzahl von Bipolarplatten nacheinander Steckpins derart eingebracht, dass die Steckpins benachbarter Bipolarplatten in horizontaler Ausrichtung des Brennstoffzellenstapels versetzt zueinander angeordnet sind. Der Nocken-Mechanismus funktioniert dabei vorzugsweise analog einer Nockenwelle.In the method according to the invention for producing contact points on bipolar plates of a fuel cell stack stacked on one another in a plane-parallel manner, plug-in pins are successively inserted by means of a mechanical parting tool, in particular a punching tool, into a predeterminable number of bipolar plates in such a way that the plug-in pins of adjacent bipolar plates in the horizontal alignment of the fuel cell stack offset from one another. The cam mechanism works preferably analogous to a camshaft.
Hierdurch ist ein derartiges Kontaktmuster realisierbar, dass auf die horizontal versetzt zueinander angeordneten Steckpins von übereinander gestapelten benachbarten Bipolarplatten ein Standardstecker gesetzt werden kann. Dies ermöglicht eine einfache und reproduzierbare Überwachung des Brennstoffzellenstapels und/oder einzelner Bipolarplatten. Insbesondere ist eine schnelle und einfache Fehlerdiagnose durch Anschluss einer Diagnoseeinheit mittels Standardstecker möglich. Darüber hinaus wird eine Wertschöpfung des Herstellungsprozesses erhöht. Ferner kann die Qualität des Brennstoffzellenstapels erhöht werden.In this way, such a contact pattern can be realized that a standard plug can be placed on the horizontally offset from each other arranged plug-in pins of stacked adjacent bipolar plates. This allows a simple and reproducible monitoring of the fuel cell stack and / or individual bipolar plates. In particular, a quick and easy fault diagnosis by connecting a diagnostic unit using standard connector is possible. In addition, a value added of the manufacturing process is increased. Furthermore, the quality of the fuel cell stack can be increased.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand von Zeichnungen näher erläutert.Embodiments of the invention are explained in more detail below with reference to drawings.
Dabei zeigen:Showing:
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
Die jeweilige Bipolarplatte
An der der einen Membran-Elektroden-Einheit zugewandten Oberfläche der Anodenplatte sind dabei Anodenkanäle zur Verteilung eines Brennstoffs entlang der einen Membran-Elektroden-Einheit angeordnet, wobei an der der anderen Membran-Elektroden-Einheit zugewandten Oberfläche der Kathodenplatte Kathodenkanäle zur Verteilung des Oxidators über der anderen Membran-Elektroden-Einheit angeordnet sind. Die Kathodenkanäle und die Anodenkanäle haben keine Verbindung miteinander.At the surface of the anode plate facing a membrane-electrode unit, anode channels for distributing a fuel are arranged along the membrane-electrode unit, wherein cathode channels for distributing the oxidizer are disposed on the surface of the cathode plate facing the other membrane-electrode unit the other membrane electrode assembly are arranged. The cathode channels and the anode channels are not connected to each other.
Die Kathoden- und Anodenkanäle werden von durch Erhebungen (im Weiteren Stege genannt) voneinander getrennten Vertiefungen (im Weiteren Kanäle genannt) auf den jeweils den Membran-Elektroden-Anordnungen zugewandten Oberflächen der Anoden- und Kathodenplatte gebildet. Die Kathoden- und Anodenplatte sind vorzugsweise geformt, insbesondere hohl geprägt. Die Stege und Kanäle werden beispielsweise diskontinuierlich durch Formrecken, Tiefziehen, Fließpressen oder dergleichen, oder kontinuierlich durch Walzen oder Ziehen hergestellt.The cathode and anode channels are formed by elevations (hereinafter referred to as webs) of mutually separate recesses (hereinafter called channels) on each of the membrane electrode assemblies facing surfaces of the anode and cathode plate. The cathode and anode plate are preferably shaped, in particular hollow embossed. The ridges and channels are produced, for example, discontinuously by forming, deep drawing, extrusion or the like, or continuously by rolling or drawing.
Mehrere dieser Bipolarplatten
Die jeweilige, zwischen zwei Membran-Elektroden-Einheiten angeordnete Bipolarplatte
Als Reaktionsstoffe werden ein Brennstoff und ein Oxidationsmittel eingesetzt. Meist werden gasförmige Reaktionsstoffe (kurz: Reaktionsgase) eingesetzt, z. B. Wasserstoff oder ein Wasserstoff enthaltendes Gas, wie z. B. so genanntes Reformatgas, als Brennstoff und Sauerstoff oder ein Sauerstoff enthaltendes Gas, wie z. B. Luft, als Oxidationsmittel. Unter Reaktionsstoffen werden alle an der elektrochemischen Reaktion beteiligten Stoffe verstanden, einschließlich der Reaktionsprodukte, wie z. B. Wasser oder Restbrenngas.The reactants used are a fuel and an oxidizing agent. Most gaseous reactants (in short: reaction gases) are used, for. B. hydrogen or a hydrogen-containing gas, such as. As so-called reformate gas, as a fuel and oxygen or an oxygen-containing gas such. As air, as an oxidizing agent. Reactants are all substances involved in the electrochemical reaction understood, including the reaction products such. As water or residual fuel gas.
Auf der einen Oberflächenseite weist der Brennstoffzellenstapel
Für eine einfache Kontaktierung sind die Kontaktstellen
Im nachfolgenden wird das Verfahren zur Herstellung der Kontaktstellen
Durch die versetzte Anordnung der Kontaktstellen
In
In
Das Stanzwerkzeug
Die Nocken
Das Stanzwerkzeug
Wie in der
Dabei werden mittels des in
Je nach Art und Aufbau des anzuschließenden Standardsteckers kann das Stanzwerkzeug
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Brennstoffzellenstapelfuel cell stack
- 22
- Bipolarplattebipolar
- 33
- Kontaktstellencontact points
- 44
- Kontaktfahnentabs
- 55
- Steckpinsplug pins
- 66
- Stanzwerkzeugpunching tool
- 77
- Nockenwellecamshaft
- 7.17.1
- Nockencam
- 7.27.2
- Federelementspring element
- 88th
- Ausklinkwerkzeugnotching
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 2006/0105593 A1 [0002] US 2006/0105593 A1 [0002]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009059766A DE102009059766A1 (en) | 2009-12-21 | 2009-12-21 | Method for production of contact areas in bipolar plates of fuel cell stack, involves stacking of plates one above other, and controlling notching tool for arranging pin in one plate, and setting plug on pin by plates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009059766A DE102009059766A1 (en) | 2009-12-21 | 2009-12-21 | Method for production of contact areas in bipolar plates of fuel cell stack, involves stacking of plates one above other, and controlling notching tool for arranging pin in one plate, and setting plug on pin by plates |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009059766A1 true DE102009059766A1 (en) | 2011-06-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102009059766A Withdrawn DE102009059766A1 (en) | 2009-12-21 | 2009-12-21 | Method for production of contact areas in bipolar plates of fuel cell stack, involves stacking of plates one above other, and controlling notching tool for arranging pin in one plate, and setting plug on pin by plates |
Country Status (1)
Country | Link |
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DE (1) | DE102009059766A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019131088A1 (en) * | 2019-10-28 | 2021-04-29 | Yuhan Precision Co., Ltd. | Core die for press for forming a metal separator for a fuel cell for fuel cell vehicles |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060105593A1 (en) | 2004-11-15 | 2006-05-18 | Spitler Alexandra Lynne M | Electrical connector and system having contact array interface for engaging contacts at varying centerline spacing |
-
2009
- 2009-12-21 DE DE102009059766A patent/DE102009059766A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060105593A1 (en) | 2004-11-15 | 2006-05-18 | Spitler Alexandra Lynne M | Electrical connector and system having contact array interface for engaging contacts at varying centerline spacing |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019131088A1 (en) * | 2019-10-28 | 2021-04-29 | Yuhan Precision Co., Ltd. | Core die for press for forming a metal separator for a fuel cell for fuel cell vehicles |
DE102019131088B4 (en) | 2019-10-28 | 2022-09-29 | Yuhan Precision Co., Ltd. | Core die for press for forming metal separator for fuel cell for fuel cell vehicle |
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R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: H01M0008020000 Ipc: H01M0008020200 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |