DE102018200818A1 - Monopolar plate component for chemical reactors, in particular for redox flow batteries, process for the preparation of a Monopolarplattenbauteils and redox flow battery with such a Monopolarplattenbauteil - Google Patents
Monopolar plate component for chemical reactors, in particular for redox flow batteries, process for the preparation of a Monopolarplattenbauteils and redox flow battery with such a Monopolarplattenbauteil Download PDFInfo
- Publication number
- DE102018200818A1 DE102018200818A1 DE102018200818.3A DE102018200818A DE102018200818A1 DE 102018200818 A1 DE102018200818 A1 DE 102018200818A1 DE 102018200818 A DE102018200818 A DE 102018200818A DE 102018200818 A1 DE102018200818 A1 DE 102018200818A1
- Authority
- DE
- Germany
- Prior art keywords
- monopolar plate
- monopolar
- contact structure
- redox flow
- plate component
- 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
- 239000000126 substance Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims 7
- 229910000679 solder Inorganic materials 0.000 claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 230000005404 monopole Effects 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 8
- 238000005476 soldering Methods 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229920007925 Ethylene chlorotrifluoroethylene (ECTFE) Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical group C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000011133 lead Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 4
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910001261 rose's metal Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000634 wood's metal Inorganic materials 0.000 description 1
Images
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
- H01M8/0223—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
- H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
- H01M8/184—Regeneration by electrochemical means
- H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
-
- 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
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
Abstract
Es wird ein Monopolarplattenbauteil für chemische Reaktoren, insbesondere für Redox-Flow-Batterien, ein Verfahren zur Herstellung eines solchen Monopolarplattenbauteils und eine Redox-Flow-Batterie mit einem solchen Monopolarplattenbauteileine angegeben, die im Vergleich zum Stand der Technik einen geringeren Kontaktwiderstand zwischen Monopolarplatte und Stromabnehmer zeigen. Hierzu wird eine elektrisch leitende Kontaktstruktur, z. B. ein Kupfergitter, in die Monopolarplatte eingepresst, sodass nur noch Teile der Kontaktstruktur aus dem Graphit-Polymer-Verbundwerkstoff der Monopolarplatte heraus ragen. Anschließend werden Stromabnehmer und Monopolarplatte mit einer Lötpastenschicht dazwischen aufeinander gedrückt und mittels Weichlötzinn miteinander verlötet. Als alternative Ausgestaltung kann bereits Kontaktstruktur mit Lötzinn beschichtet sein, wenn sie in die Bipolarplatte eingepresst wird.There is provided a monopolar plate member for chemical reactors, particularly for redox flow batteries, a method for producing such a monopolar plate member, and a redox flow battery having such a monopole plate member which, compared with the prior art, has lower contact resistance between monopolar plate and current collector demonstrate. For this purpose, an electrically conductive contact structure, for. As a copper grid, pressed into the monopolar plate, so that only parts of the contact structure of the graphite polymer composite material of the monopolar protrude out. Subsequently, pantograph and monopolar plate are pressed together with a solder paste layer between them and soldered together by means of solder. As an alternative embodiment, contact structure may already be coated with solder when it is pressed into the bipolar plate.
Description
Die Erfindung betrifft Monopolarplattenbauteil für chemische Reaktoren, insbesondere für Redox-Flow-Batterien nach Anspruch 1, ein Verfahren zur Herstellung eines solchen Monopolarplattenbauteils nach Anspruch 11 und eine Redox-Flow-Batterie mit einem solchen Monopolarplattenbauteileine gemäß Anspruch 16.The invention relates to monopolar plate component for chemical reactors, in particular for redox flow batteries according to
Der grundsätzliche Aufbau einer solchen Redox-Flow-Batterie ist aus der
Die Stromabnehmer
Es ist daher Aufgabe der vorliegenden Erfindung ein Monopolarplattenbauteil mit Monopolarplatte und Stromabnehmer anzugeben, das im Vergleich zum Stand der Technik einen geringeren Kontaktwiderstand zwischen Monopolarplatte und Stromabnehmer zeigt. Weiter ist es Aufgabe der Erfindung ein Verfahren zur Herstellung eines solchen Monopolarplattenbauteils und einen Redox-Flow-Batteriestack mit einem solchen Monopolarplattenbauteil anzugeben.It is therefore an object of the present invention to provide a monopolar plate component with monopolar plate and current collector, which shows a lower contact resistance between monopolar plate and current collector compared to the prior art. It is another object of the invention to provide a method for producing such a Monopolarplattenbauteils and a redox flow battery stack with such a Monopolarplattenbauteil.
Die Lösung dieser Aufgabe erfolgt durch die Merkmale der Ansprüche 1, 11 bzw. 16.The solution of this object is achieved by the features of
Zunächst wird eine elektrisch leitende Kontaktstruktur, z. B. ein Kupfergitter, in die Monopolarplatte eingepresst, sodass nur noch Teile der Kontaktstruktur aus dem Graphit-Polymer-Verbundwerkstoff der Monopolarplatte heraus ragen. Anschließend werden Stromabnehmer und Monopolarplatte mit einer Lötpastenschicht dazwischen aufeinander gedrückt und mittels Weichlötzinn miteinander verlötet. Als alternative Ausgestaltung kann bereits Kontaktstruktur mit Lötzinn beschichtet sein, wenn sie in die Bipolarplatte eingepresst wird.First, an electrically conductive contact structure, for. As a copper grid, pressed into the monopolar plate, so that only parts of the contact structure of the graphite polymer composite material of the monopolar protrude out. Subsequently, pantograph and monopolar plate are pressed together with a solder paste layer between them and soldered together by means of solder. As an alternative embodiment, contact structure may already be coated with solder when it is pressed into the bipolar plate.
Gemäß einer vorteilhaften Ausgestaltung nach Anspruch 2 ist die Kontaktstruktur eine Gitterstruktur. Die Dimensionierungen nach Anspruch 3 und 4 haben sich als vorteilhaft erwiesen.According to an advantageous embodiment according to
Alternativ kann die Kontaktstruktur auch aus Drahtkorn, Metallpulver oder Metallwolle gebildet sein - Anspruch 5.Alternatively, the contact structure may also be formed from wire grain, metal powder or metal wool - Claim 5.
Vorzugsweise besteht die Kontaktstruktur aus Kupfer, Eisen, Stahl, Blei, Zink, Nickel, Wolfram, Titan oder auch aus Legierungen dieser Metalle - Anspruch 7.Preferably, the contact structure of copper, iron, steel, lead, zinc, nickel, tungsten, titanium or alloys of these metals -
Das in Anspruch 8 genannte Verhältnis zwischen Polymer und Graphit hat sich als vorteilhaft erwiesen.The mentioned in
Anspruch 9 und 10 beziehen sich auf vorteilhafte Ausgestaltungen der Monopolarplatte.
Die Verpressung zwischen Kontaktstruktur und Monopolarplatte erfolgt mit Druck und gegebenenfalls zusätzlich mit Wärme, wobei darauf geachtet werden muss, dass das Kunststoffmaterial der Monopolarplatte nicht zerstört wird. The compression between contact structure and monopolar plate is carried out with pressure and optionally in addition to heat, care must be taken that the plastic material of the monopolar plate is not destroyed.
Die Verpressung zwischen Kontaktstruktur und Monopolarplatte erfolgt mittels einer Plattenpresse, d. h. einer Flächenpressung - Anspruch 14 - oder vorzugsweise mit einer Walzenpresse - Anspruch 13, d. h. mittels einer Linienpressung, da in einem strichförmigen Bereich leichter höhere Drücke erzielt werden können.The compression between contact structure and monopolar plate by means of a plate press, d. H. a surface pressure - claim 14 - or preferably with a roller press - claim 13, d. H. by means of a line pressure, as in a line-shaped area easier higher pressures can be achieved.
Die übrigen Unteransprüche beziehen sich auf weitere vorteilhafte Ausgestaltungen der Erfindung.The remaining subclaims relate to further advantageous embodiments of the invention.
Weitere Einzelheiten und Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung der Erfindung anhand der Zeichnung.Further details and features of the present invention will become apparent from the following description of the invention with reference to the drawing.
Es zeigt
-
1 eine schematische Schnittdarstellung einer beispielhaften Ausführungsform des Monopolarplattenbauteils, -
2 eine perspektivische Darstellung der Ausführungsform nach1 , -
3 eine Explosionsdarstellung einer Redox-Flow-Batterie mit einer Monopolarplatte nach1 und2 , -
4 eine alternative Ausgestaltung der Kontaktstruktur in Form eines Drahtsiebes, -
5 eine weitere alternative Ausgestaltung der Kontaktstruktur in Form von Metallwolle, -
6 eine weitere alternative Ausgestaltung der Kontaktstruktur in Form von Drahtkorn oder Drahtkies, und -
7 den Aufbau einer Redox-Flow-Batterie nach dem Stand der Technik.
-
1 FIG. 2 a schematic sectional view of an exemplary embodiment of the monopolar plate component, FIG. -
2 a perspective view of the embodiment according to1 . -
3 an exploded view of a redox flow battery with a monopolar plate according to1 and2 . -
4 an alternative embodiment of the contact structure in the form of a wire screen, -
5 a further alternative embodiment of the contact structure in the form of metal wool, -
6 a further alternative embodiment of the contact structure in the form of wire grain or wire gravel, and -
7 the construction of a redox flow battery according to the prior art.
Zunächst wird die elektrisch leitende Kontaktstruktur
Als alternative Ausgestaltung - nicht dargestellt - kann die Kontaktstruktur
Die Lötpastenschicht
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 22
- Elektrolyttankselectrolyte tanks
- 33
- elektrochemischer Reaktor, Zelleelectrochemical reactor, cell
- 44
- Membranmembrane
- 55
- Elektrodenelectrodes
- 66
- MonopolarplattenMonopolar plates
- 77
- Stromabnehmerpantograph
- 88th
- Stromanschluss power connection
- 1010
- MonopolarplattenbauteilMonopolar plate member
- 1212
- Stromabnehmerpantograph
- 1414
- Lötpastenschichtsolder paste
- 1616
- KontaktstrukturContact structure
- 1818
- MonopolarplatteMonopolar plate
- 2020
- Membranmembrane
- 2222
- Elektrodenelectrodes
- 2424
- Flussrahmenriver Setting
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
- DE 102012017306 A1 [0002]DE 102012017306 A1 [0002]
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018200818.3A DE102018200818A1 (en) | 2018-01-18 | 2018-01-18 | Monopolar plate component for chemical reactors, in particular for redox flow batteries, process for the preparation of a Monopolarplattenbauteils and redox flow battery with such a Monopolarplattenbauteil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018200818.3A DE102018200818A1 (en) | 2018-01-18 | 2018-01-18 | Monopolar plate component for chemical reactors, in particular for redox flow batteries, process for the preparation of a Monopolarplattenbauteils and redox flow battery with such a Monopolarplattenbauteil |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018200818A1 true DE102018200818A1 (en) | 2019-07-18 |
Family
ID=67068873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018200818.3A Granted DE102018200818A1 (en) | 2018-01-18 | 2018-01-18 | Monopolar plate component for chemical reactors, in particular for redox flow batteries, process for the preparation of a Monopolarplattenbauteils and redox flow battery with such a Monopolarplattenbauteil |
Country Status (1)
Country | Link |
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DE (1) | DE102018200818A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10253958A1 (en) * | 2001-11-20 | 2003-06-05 | Gen Motors Corp | PEM fuel cell with low contact resistance |
DE10216306A1 (en) * | 2002-04-14 | 2003-11-20 | Sgl Carbon Ag | Contact plate for electrochemical cells |
DE10235598A1 (en) * | 2002-07-31 | 2004-02-19 | Reinz-Dichtungs-Gmbh & Co. Kg | Component used in fuel cells has an electrically conducting surface coating applied as corrosion protection layer on its surface |
DE102012017306A1 (en) | 2012-09-03 | 2014-03-06 | Thyssenkrupp Uhde Gmbh | Electrochemical cell of flow type |
AT515926A4 (en) * | 2014-07-18 | 2016-01-15 | Cellstrom Gmbh | End frame for flow battery |
-
2018
- 2018-01-18 DE DE102018200818.3A patent/DE102018200818A1/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10253958A1 (en) * | 2001-11-20 | 2003-06-05 | Gen Motors Corp | PEM fuel cell with low contact resistance |
DE10216306A1 (en) * | 2002-04-14 | 2003-11-20 | Sgl Carbon Ag | Contact plate for electrochemical cells |
DE10235598A1 (en) * | 2002-07-31 | 2004-02-19 | Reinz-Dichtungs-Gmbh & Co. Kg | Component used in fuel cells has an electrically conducting surface coating applied as corrosion protection layer on its surface |
DE102012017306A1 (en) | 2012-09-03 | 2014-03-06 | Thyssenkrupp Uhde Gmbh | Electrochemical cell of flow type |
AT515926A4 (en) * | 2014-07-18 | 2016-01-15 | Cellstrom Gmbh | End frame for flow battery |
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