EP1794824A2 - Hochtemperatur-brennstoffzellenanlage und verfahren zur herstellung von kontaktierungselementen f]r eine derartige brennstoffzellenanlage - Google Patents
Hochtemperatur-brennstoffzellenanlage und verfahren zur herstellung von kontaktierungselementen f]r eine derartige brennstoffzellenanlageInfo
- Publication number
- EP1794824A2 EP1794824A2 EP05797061A EP05797061A EP1794824A2 EP 1794824 A2 EP1794824 A2 EP 1794824A2 EP 05797061 A EP05797061 A EP 05797061A EP 05797061 A EP05797061 A EP 05797061A EP 1794824 A2 EP1794824 A2 EP 1794824A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel cell
- cell system
- temperature fuel
- nickel
- fabric
- 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.)
- Withdrawn
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
- H01M8/023—Porous and characterised by the material
- H01M8/0232—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
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
-
- 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
- H01M8/0252—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form tubular
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
- H01M8/1226—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material characterised by the supporting layer
-
- 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
- H01M8/2404—Processes or apparatus for grouping 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
- H01M8/2425—High-temperature cells with solid electrolytes
- H01M8/243—Grouping of unit cells of tubular or cylindrical configuration
-
- 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
Definitions
- the invention relates to a high-temperature fuel cell layer of a plurality of individual fuel cells, which are contacted for electrical parallel and / or series connection with each other, including flexible and electrically conductive contacting elements are used.
- the invention also relates to a method for the production of contacting elements for such a fuel cell system.
- contact strips are used for the electrical contacting of solid ceramic fuel cells in series or parallel connection.
- a tubular fuel cell on the already existing there interconnector be fen this Kunststoffstrei ⁇ applied longitudinally and respectively connect the cathode and anode of two individual fuel cells arranged above one another ⁇ (electrical series connection).
- Meh ⁇ rere adjacent fuel cells can be connected to Parallelschal ⁇ tion by a contact strip (electrical parallel circuit see).
- Known contacting elements which are currently used for the electrical connection of tubular high-temperature fuel cells, consist of nickel felt strips which consist of a multiplicity of fine nickel fibers which are only a few 10 ⁇ m thick and thus are both flexible and compressible , The nickel felt strips are in the compressed state about 6 mm wide and 3 to 4 mm high.
- the height of the contact strip is specified during its mounting by the distance that must be bridged between two cells by the contact. This is described in detail, for example, in EP 0 320 087 B1 and EP 0 536 909 A1 described.
- the nickel felts are glued onto the interconnector on the one hand and the anode on the other hand with a nickel paste.
- the subject matter of the invention is such a contacting element in which the electrical contact is formed from a metallic knitted fabric.
- Base material for such contacts is according to the above-mentioned prior art nickel. But also alloys based on nickel are possible.
- the knitted fabric according to the invention is preferably made of Ni-base ⁇ ckel wires of a thickness between 50 and 150 microns, and in special formed about 100 microns.
- the knit has advantageous ⁇ enough, a porosity> 80%.
- the production of the contacting invention can be industrially of about 100 microns thickness can be well ver ⁇ work, where the fabric thus produced has the required properties of the electrical conductivity in a knitting process as a continuous part of SUC ⁇ gen. Nickel wires. By pressing and wrinkles can be cut to length of knitted parts contacting the required form with good Elasti ⁇ capacity and establish compressibility.
- 1 shows a detail of a fuel cell system with the cell contact between two individual fuel cells according to the prior art.
- 2 shows the manufacture of a contacting element from egg ⁇ nem nickel knitted fabric and
- FIG. 3 contacting elements produced in this way for connecting HPD fuel cell elements.
- the individual cells are connected in series, for example, in series connection.
- the cathode of a first cell with the anode of an ner second cell can be contacted.
- a so-called interconnector 15 is located on the cathode tubes 10 and 10 'in a narrow region which is not covered by the electrolyte 11 or by the anode 12.
- a separate contact element 20 is placed on the interconnector 15 for the purpose of Contact the cell 1 applied to the next cell 2.
- the cathode tube has a thickness of 2 mm.
- the cathode tubes are about 1800 mm long and terminated at one end.
- the interconnector 15 is in the form of a narrow strip with a thickness of approximately 40 to 100 ⁇ m on the cathode tube 10.
- the electrolyte 11 and the anode 12 likewise have a thickness in the range of approximately 100 ⁇ m.
- the contact 20 For the proper connection of two fuel cells 1 and 2, the contact 20 must have a thickness of about 3 mm. Since the fuel cell arrangement is carried out at temperatures in the range of 1000 0 C, the materials must particular bezüg ⁇ Lich their expansion coefficients are matched, in order to ensure a sufficient stability. Therefore, the commonly used nickel contacts must be elastic and flexible to some extent. This is made possible by the structure of the knitted fabric in particular simp ⁇ cher way.
- wire fabrics can be manufactured automatically from egg ⁇ nem metallic wire: where 50 is the fabric of individual wires 51, wherein ⁇ example as plain stitch or as a round tube.
- the wires are formed from nickel, which also has the required electronic conductivity even at the working ⁇ temperature of the SOFC.
- the nickel wires have a diameter of about 100 ⁇ m. Wires with this diameter can be processed well and are sufficiently flexible. In practice, a value of 150 ⁇ m proves to be the upper limit of the wire diameter.
- Such wires may also be made of a nickel alloy, more particularly sondere a two-component alloy with nickel as a base metal and a suitable metallic minor component are be ⁇ . But also multi-component alloys with several secondary components are possible.
- nickel-based alloy in particular the metals copper (Cu), chromium (Cr), cobalt (Co), titanium (Ti), but also their oxides in question.
- the total proportion of secondary components should not exceed 30% by weight.
- a hose can have different diameters.
- the knit 50 himself for the approved purpose bestim ⁇ use as elastic Kunststofftechniks ⁇ elements in SOFCs, a porosity of> 80%.
- FIG. 3 shows two so-called HPD fuel cells 8 and 9.
- HPD fuel cells consist of a flat sintered body, which can occupy a flat or wavy Ober ⁇ surface, in which, for example, six or eight individual inner tubes are incorporated. Due to the ver ⁇ healthten current density per cell volume is a particularly high output power (high power density) results here in the comparatively to individual tubes.
- accountability elements 110, 120 are located between the two HPD fuel cells 8 and 9.
- the sections of the knitted fabric 50 according to Figure 2 for example a hose, cut to length, and the molded body 100 folded and pressed wur ⁇ the.
- a continuous metal net 100 may be present.
- HPD fuel cells 8 and 9 can be interconnected electrically and mechanically stably and mechanically stably. Even with long-term operation at high temperatures no disturbances occur.
Landscapes
- 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)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004047761A DE102004047761A1 (de) | 2004-09-30 | 2004-09-30 | Hochtemperatur-Brennstoffzellenanlage und Verfahren zur Herstellung von Kontaktierungselementen für eine derartige Brennstoffzellenanlage |
PCT/EP2005/054886 WO2006035046A2 (de) | 2004-09-30 | 2005-09-28 | Hochtemperatur-brennstoffzellenanlage und verfahren zur herstellung von kontaktierungselementen für eine derartige brennstoffzellenanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1794824A2 true EP1794824A2 (de) | 2007-06-13 |
Family
ID=35953966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05797061A Withdrawn EP1794824A2 (de) | 2004-09-30 | 2005-09-28 | Hochtemperatur-brennstoffzellenanlage und verfahren zur herstellung von kontaktierungselementen f]r eine derartige brennstoffzellenanlage |
Country Status (4)
Country | Link |
---|---|
US (1) | US8273503B2 (de) |
EP (1) | EP1794824A2 (de) |
DE (1) | DE102004047761A1 (de) |
WO (1) | WO2006035046A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2700951A1 (en) | 2007-09-28 | 2009-04-09 | Ines Becker | Aid for electrical contacting of high-temperature fuel cells and method for production thereof |
CA2700938A1 (en) * | 2007-09-28 | 2009-04-09 | Siemens Energy, Inc. | Fuel cell system and method for production thereof |
WO2011041264A1 (en) * | 2009-09-29 | 2011-04-07 | Ut-Battelle, Llc | Wire mesh current collector, solid state electrochemical devices including the same, and methods of making the same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4874678A (en) | 1987-12-10 | 1989-10-17 | Westinghouse Electric Corp. | Elongated solid electrolyte cell configurations and flexible connections therefor |
EP0536909B1 (de) | 1991-10-11 | 1998-03-11 | Westinghouse Electric Corporation | Festoxidbrennstoffzellengenerator |
US6379831B1 (en) * | 2000-08-02 | 2002-04-30 | Siemens Westinghouse Power Corporation | Expanded nickel screen electrical connection supports for solid oxide fuel cells |
US6416897B1 (en) * | 2000-09-01 | 2002-07-09 | Siemens Westinghouse Power Corporation | Tubular screen electrical connection support for solid oxide fuel cells |
US6737182B2 (en) | 2001-06-18 | 2004-05-18 | Delphi Technologies, Inc. | Heated interconnect |
DE10140620A1 (de) | 2001-08-18 | 2003-03-06 | Elringklinger Ag | Verfahren zum Herstellen eines Substrats für eine Elektrode einer Brennstoffzelleneinheit und nach dem Verfahren hergestelltes Substrat |
US8158057B2 (en) * | 2005-06-15 | 2012-04-17 | Ati Properties, Inc. | Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells |
US20040200187A1 (en) | 2002-11-27 | 2004-10-14 | Warrier Sunil G. | Compliant, strain tolerant interconnects for solid oxide fuel cell stack |
US7892698B2 (en) * | 2003-07-18 | 2011-02-22 | Versa Power Systems, Ltd. | Electrically conductive fuel cell contact material |
-
2004
- 2004-09-30 DE DE102004047761A patent/DE102004047761A1/de not_active Withdrawn
-
2005
- 2005-09-28 EP EP05797061A patent/EP1794824A2/de not_active Withdrawn
- 2005-09-28 WO PCT/EP2005/054886 patent/WO2006035046A2/de active Application Filing
- 2005-09-28 US US11/664,064 patent/US8273503B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006035046A2 * |
Also Published As
Publication number | Publication date |
---|---|
US8273503B2 (en) | 2012-09-25 |
US20090061260A1 (en) | 2009-03-05 |
WO2006035046A3 (de) | 2006-06-01 |
DE102004047761A1 (de) | 2006-04-27 |
WO2006035046A2 (de) | 2006-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69838679T2 (de) | Elektrische leitfähigkeit in einer brennstoffzellen-anordnung | |
EP2154742B1 (de) | Brennstoffzelleneinheit und Verfahren zum Herstellen einer elektrisch leitfähigen Verbindung zwischen einer Elektrode und einer Bipolarplatte | |
EP0868759B1 (de) | Bipolare platte mit selektiver beschichtung | |
EP0410159A1 (de) | Stromkollektor für Hochtemperatur-Brennstoffzelle | |
DE4237602A1 (de) | Hochtemperatur-Brennstoffzellen-Stapel und Verfahren zu seiner Herstellung | |
EP3770303B1 (de) | Elektrodenpackungseinheit für einen stapelaufbau eines elektrochemischen reaktors | |
EP0432381A1 (de) | Bauteilanordnung zur Stromführung für keramische Hochtemperatur-Brennstoffzellen | |
DE4206490C2 (de) | Elektrisch leitfähige Gasverteilerstruktur für eine Brennstoffzelle und Verfahren zu ihrer Herstellung | |
EP1794824A2 (de) | Hochtemperatur-brennstoffzellenanlage und verfahren zur herstellung von kontaktierungselementen f]r eine derartige brennstoffzellenanlage | |
WO2001095416A1 (de) | Vorrichtung zur elektrischen kontaktierung von elektroden in hochtemperaturbrennstoffzellen | |
DE19517443A1 (de) | Korrosionsbeständiger Stromkollektor und Verfahren zur Herstellung eines solchen | |
EP0424691A1 (de) | Bauteilanordnung zur Stromüberführung für keramische Hochtemperatur-Brennstoffzellen | |
DE102008036848A1 (de) | Verfahren zum Herstellen einer elektrisch leitfähigen Verbindung zwischen einer Elektrode und einer Bipolarplatte sowie Brennstoffzelleneinheit | |
WO2009043818A1 (de) | Hilfsmittel zur elektrischen kontaktierung von hochtemperatur-brennstoffzellen und verfahren zu dessen herstellung | |
DE112011103324T5 (de) | Kollektormaterial für Brennstoffzellen | |
EP1614173B1 (de) | Brennstoffzelle und/oder elektrolyseur sowie verfahren zu deren/dessen herstellung | |
DE102009015794B3 (de) | Kontaktelement für eine elektrisch leitende Verbindung zwischen einer Anode und einem Interkonnektor einer Hochtemperaturbrennstoffzelle | |
EP2195869B1 (de) | Brennstoffzellen-anlage und verfahren zu deren herstellung | |
WO2006035048A2 (de) | Hochtemperatur-brennstoffzellenanlage und verfahren zur herstellung von kontaktierungselementen für eine derartige brennstoffzellenanlage | |
DE2710086A1 (de) | Verfahren zur herstellung einer neuen kathode fuer kathodenstrahlroehren | |
WO2002058172A2 (de) | Elektrode einer lithium als aktives material enthaltenden elektrochemischen anordnung | |
DE112004001144T5 (de) | Festoxid-Brennstoffzelle | |
DE102011051440A1 (de) | Verfahren zur Herstellung eines Interkonnektors für eine Hochtemperatur-Brennstoffzelle, Interkonnektor sowie Hochtemperatur-Brennstoffzelle | |
DE112019000044T5 (de) | Zellenstapelvorrichtung | |
DE102022203941A1 (de) | Bipolarelement, insbesondere Bipolarplatte, und Herstellungsverfahren |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20070314 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): CH DE DK FR GB IT LI |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): CH DE DK FR GB IT LI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS ENERGY, INC. |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20160401 |