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US 2011/0294029 A1Published application
Hydrophilic coating for fuel cell bipolar plate and methods of making the same
AssigneeGM Global Technology Operations LLC
InventorsGERHARD WINTER, GAYATRI VYAS, THOMAS A. TRABOLD, REENA L. DATTA
Life of this patent
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Abstract
One embodiment disclosed includes a product comprising: a fuel cell component comprising a substrate and a first coating overlying the substrate, the coating comprising a compound comprising at least one Si—O group, at least one polar group and at least one group including a saturated or unsaturated carbon chain.
Claims41
A product comprising:
- a fuel cell component comprising a substrate and a first coating overlying the substrate, the coating comprising a compound comprising at least one Si—O group, at least one polar group and at least one group including a saturated or unsaturated carbon chain.
A product comprising:
- a fuel cell component comprising a substrate and a first coating overlying the substrate, the coating comprising a compound comprising at least one Si—O group and an Si—R group wherein R includes a saturated or unsaturated carbon chain, and wherein the molar ratio of Si—R groups to Si—O groups ranges from ⅛ to ½.
A product-by-process comprising:
- depositing a coating on a fuel cell component using a plasma assisted chemical deposition process comprising a precursor gases comprising a siloxane, and further comprising a second gas.
A product-by-process as set forth in claim 24 wherein R is an alkyl group.
A product-by-process comprising:
- depositing a coating on a fuel cell component using a plasma assisted chemical deposition process comprising a precursor gas and further comprising a second gas, the precursor gases comprising a material having the formula
- wherein R1, R2, R3, R4, R5, and R6, each may be H, O, Cl, or a saturated or unsaturated carbon chain, and wherein R1, R2, R3, R4, R5, and R6, may be the same or different.
A product comprising:
- a fuel cell component having a coating thereon, wherein the coating includes nanopaticles having a size ranging from 1 to 100 nanometers, and wherein the nanoparticles comprises a compound comprising a Si—O group, a saturated or unsaturated carbon chain and a polar group.
40-68. (canceled)
Dependencies are inferred from the claim text.