Method of applying a flow field plate coating
AssigneeRobert Bosch GmbH
InventorsSoo Kim, Mordechai Kornbluth, Jonathan Mailoa, Lei Cheng, Georgy Samsonidze, Boris Kozinsky, Nathan Craig
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Abstract
A method of applying a coating to a flow field plate of a fuel cell. The method includes applying a solution including a metal-containing precursor and a solvent to at least a portion of a surface of a flow field plate, and evaporating the solvent to form a coating on the at least the portion of the surface of the flow field plate.
Claims11
A method of applying a protective coating to a flow field plate of a fuel cell, the method comprising:
- applying a solution including a metal-containing precursor and a solvent to at least a first portion of a surface of the flow field plate;
- evaporating the solvent to form the protective coating on the at least the portion of the surface of the flow field plate, the protective coating is a combination of a first metal oxide or nitride and a second metal oxide or nitride, the first metal oxide or nitride has a metal A of Mg, and the second metal oxide or nitride has a metal B of Cr;
- applying the solution including the metal-containing precursor and the solvent to at least a second portion of a second surface of the flow field plate;
- and
- evaporating the solvent to form a second protective coating including niobium monoxide (NbO) on at least the portion of the second surface of the flow field plate.
A method of applying a protective coating material to a flow field plate of a fuel cell, the method comprising:
- applying a solution including a metal-containing precursor and a solvent to at least a portion of the flow field plate;
- and
- evaporating the solvent to form the protective coating material on the at least the portion of a surface of the flow field plate to form island-type structures of the protective coating material on the surface of the flow field plate, the protective coating material is a combination of MgO and niobium oxide (NbO) or TiO, the metal-containing precursor including (a) Mg(NO3)2 or MgCl2 and (b) Nb(NO3)2 and NbCl2 or (c) Ti(NO3)2 and TiCl2.
A method of applying a protective coating material to a flow field plate of a fuel cell, the method comprising:
- applying a solution including a metal-containing precursor and a solvent to at least a portion of the flow field plate;
- and
- evaporating the solvent to form the protective coating material on the at least the portion of a surface of the flow field plate to form island-type structures of the protective coating material on the surface of the flow field plate, the protective coating material is a ternary oxide having a metal A and a metal B and a composition ratio between the metal A and the metal B is different or the same, the metal A is Mg, and the metal B is Zn, Sn, Cr or Mo.
Dependencies are inferred from the claim text.