Oberflächenbehandelte Kohlenstoffbeschichtungen für Strömungsfeldplatten
Strömungsfeldplatte (12) mit einer niederohmigen Beschichtung für Brennstoffzellenanwendungen, umfassend:eine Metallplatte mit einer ersten Oberfläche (16) und einer zweiten Oberfläche (18), wobei die erste Oberfläche (16) eine Vielzahl von Kanälen (20) zum Leiten einer Strömung mit einer ersten gas...
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| creator | Dadheech, Gayatri Vyas Abd Elhamid, Mahmoud H |
| description | Strömungsfeldplatte (12) mit einer niederohmigen Beschichtung für Brennstoffzellenanwendungen, umfassend:eine Metallplatte mit einer ersten Oberfläche (16) und einer zweiten Oberfläche (18), wobei die erste Oberfläche (16) eine Vielzahl von Kanälen (20) zum Leiten einer Strömung mit einer ersten gasförmigen Zusammensetzung definiert; undeine aktivierte Kohlenstoffbeschichtung (50), die benachbart zu wenigstens einem Abschnitt der Platte angeordnet ist, wobei die aktivierte Kohlenstoffbeschichtung (50) einen Oberflächenwiderstand von weniger als 20 mΩ·cm2aufweist, wobei der Oberflächenwiderstand stabil ist,wobei eine Nanoporosität der aktivierten Kohlenstoffbeschichtung (50) größer ist als eine Nanoporosität der Kohlenstoffbeschichtung (50) vor einer Aktivierung, undwobei die Nanoporosität der Kohlenstoffschicht durch den Rauigkeitsdurchschnitt der Oberfläche der Kohlenstoffschicht gekennzeichnet ist, undwobei die Erhöhung der Oberflächenrauigkeit nach der Aktivierung im Bereich von 50 nm bis 500 nm liegt.
A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating (50) disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. The interface layer is chromium, titanium, zirconium, hafnium, and/or noble metals. The portion of the carbon coating is hydrophilic or hydrophobic. Independent claims are included for following: (1) a fuel cell comprising a first flow field plate; a first catalyst layer disposed over the first flow field plate; an ion conductor layer disposed over the first catalyst layer; a second catalyst layer disposed over ion conductor layer |
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A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating (50) disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. The interface layer is chromium, titanium, zirconium, hafnium, and/or noble metals. The portion of the carbon coating is hydrophilic or hydrophobic. Independent claims are included for following: (1) a fuel cell comprising a first flow field plate; a first catalyst layer disposed over the first flow field plate; an ion conductor layer disposed over the first catalyst layer; a second catalyst layer disposed over ion conductor layer; and a second flow field plate disposed over the second catalyst layer; and (2) making a flow field plate involving providing a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; depositing a carbon coating adjacent to at least a portion of the plate; and activating a surface of the carbon coating so that it has a surface resistance of less than 20 m.omega .cm 2>, where the surface resistance is stable.</description><language>ger</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; ELECTRICITY ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; METALLURGY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211209&DB=EPODOC&CC=DE&NR=102011109909B4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211209&DB=EPODOC&CC=DE&NR=102011109909B4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Dadheech, Gayatri Vyas</creatorcontrib><creatorcontrib>Abd Elhamid, Mahmoud H</creatorcontrib><title>Oberflächenbehandelte Kohlenstoffbeschichtungen für Strömungsfeldplatten</title><description>Strömungsfeldplatte (12) mit einer niederohmigen Beschichtung für Brennstoffzellenanwendungen, umfassend:eine Metallplatte mit einer ersten Oberfläche (16) und einer zweiten Oberfläche (18), wobei die erste Oberfläche (16) eine Vielzahl von Kanälen (20) zum Leiten einer Strömung mit einer ersten gasförmigen Zusammensetzung definiert; undeine aktivierte Kohlenstoffbeschichtung (50), die benachbart zu wenigstens einem Abschnitt der Platte angeordnet ist, wobei die aktivierte Kohlenstoffbeschichtung (50) einen Oberflächenwiderstand von weniger als 20 mΩ·cm2aufweist, wobei der Oberflächenwiderstand stabil ist,wobei eine Nanoporosität der aktivierten Kohlenstoffbeschichtung (50) größer ist als eine Nanoporosität der Kohlenstoffbeschichtung (50) vor einer Aktivierung, undwobei die Nanoporosität der Kohlenstoffschicht durch den Rauigkeitsdurchschnitt der Oberfläche der Kohlenstoffschicht gekennzeichnet ist, undwobei die Erhöhung der Oberflächenrauigkeit nach der Aktivierung im Bereich von 50 nm bis 500 nm liegt.
A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating (50) disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. The interface layer is chromium, titanium, zirconium, hafnium, and/or noble metals. The portion of the carbon coating is hydrophilic or hydrophobic. Independent claims are included for following: (1) a fuel cell comprising a first flow field plate; a first catalyst layer disposed over the first flow field plate; an ion conductor layer disposed over the first catalyst layer; a second catalyst layer disposed over ion conductor layer; and a second flow field plate disposed over the second catalyst layer; and (2) making a flow field plate involving providing a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; depositing a carbon coating adjacent to at least a portion of the plate; and activating a surface of the carbon coating so that it has a surface resistance of less than 20 m.omega .cm 2>, where the surface resistance is stable.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>ELECTRICITY</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>METALLURGY</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPD2T0otSss5vCQ5IzUvKTUjMS8lNackVcE7PyMnNa-4JD8tLSm1ODkjMzmjpDQvPTVPIe3wniKF4JKiw9tygQLFaak5KQU5iSUlqXk8DKxpiTnFqbxQmptB1c01xNlDN7UgPz61uCAxOTUvtSTexdXQwMjA0NDQwNLSwNLJxJhYdQDcBDqU</recordid><startdate>20211209</startdate><enddate>20211209</enddate><creator>Dadheech, Gayatri Vyas</creator><creator>Abd Elhamid, Mahmoud H</creator><scope>EVB</scope></search><sort><creationdate>20211209</creationdate><title>Oberflächenbehandelte Kohlenstoffbeschichtungen für Strömungsfeldplatten</title><author>Dadheech, Gayatri Vyas ; Abd Elhamid, Mahmoud H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE102011109909B43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>2021</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>ELECTRICITY</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>METALLURGY</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</topic><toplevel>online_resources</toplevel><creatorcontrib>Dadheech, Gayatri Vyas</creatorcontrib><creatorcontrib>Abd Elhamid, Mahmoud H</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Dadheech, Gayatri Vyas</au><au>Abd Elhamid, Mahmoud H</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Oberflächenbehandelte Kohlenstoffbeschichtungen für Strömungsfeldplatten</title><date>2021-12-09</date><risdate>2021</risdate><abstract>Strömungsfeldplatte (12) mit einer niederohmigen Beschichtung für Brennstoffzellenanwendungen, umfassend:eine Metallplatte mit einer ersten Oberfläche (16) und einer zweiten Oberfläche (18), wobei die erste Oberfläche (16) eine Vielzahl von Kanälen (20) zum Leiten einer Strömung mit einer ersten gasförmigen Zusammensetzung definiert; undeine aktivierte Kohlenstoffbeschichtung (50), die benachbart zu wenigstens einem Abschnitt der Platte angeordnet ist, wobei die aktivierte Kohlenstoffbeschichtung (50) einen Oberflächenwiderstand von weniger als 20 mΩ·cm2aufweist, wobei der Oberflächenwiderstand stabil ist,wobei eine Nanoporosität der aktivierten Kohlenstoffbeschichtung (50) größer ist als eine Nanoporosität der Kohlenstoffbeschichtung (50) vor einer Aktivierung, undwobei die Nanoporosität der Kohlenstoffschicht durch den Rauigkeitsdurchschnitt der Oberfläche der Kohlenstoffschicht gekennzeichnet ist, undwobei die Erhöhung der Oberflächenrauigkeit nach der Aktivierung im Bereich von 50 nm bis 500 nm liegt.
A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. A flow field plate (12) having a low resistance coating for fuel cell applications comprises a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; an activated carbon coating (50) disposed adjacent to at least a portion of the plate, where the activated carbon coating having a surface resistance of less than 20 momega .cm 2>, the surface resistance is stable; and an interface layer between the plate and the carbon coating. The interface layer is chromium, titanium, zirconium, hafnium, and/or noble metals. The portion of the carbon coating is hydrophilic or hydrophobic. Independent claims are included for following: (1) a fuel cell comprising a first flow field plate; a first catalyst layer disposed over the first flow field plate; an ion conductor layer disposed over the first catalyst layer; a second catalyst layer disposed over ion conductor layer; and a second flow field plate disposed over the second catalyst layer; and (2) making a flow field plate involving providing a metal plate having a first surface and a second surface, where the first surface defining channels for directing flow of a first gaseous composition; depositing a carbon coating adjacent to at least a portion of the plate; and activating a surface of the carbon coating so that it has a surface resistance of less than 20 m.omega .cm 2>, where the surface resistance is stable.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION |
| title | Oberflächenbehandelte Kohlenstoffbeschichtungen für Strömungsfeldplatten |
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