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US 9,029,046 B2Granted
Hydrophilic coating for fuel cell bipolar plate and methods of making the same
AssigneeGM Global Technology Operations LLC
InventorsGerhard Winter, Gayatri Vyas Dadheech, 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.
Claims11
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 comprising:
- a fuel cell component having a coating thereon, wherein the coating includes nodular 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 wherein the coating is sufficient porous to allow fibers of a diffusion media to extent therethrough and wherein the component comprises a bipolar plate and further comprising a diffusion media overlying the coating and wherein the diffusion media comprises fibers and the coating is porous, and wherein a plurality of the fibers extend though the coating.
Dependencies are inferred from the claim text.