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AssigneeNanotek Instruments, Inc.
InventorsBor Z. Jang, Aruna Zhamu, Jiusheng Guo
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This invention provides a moldable, multiple-layer composite composition, which is a precursor to an electrically conductive composite flow field plate or bipolar plate. In one preferred embodiment, the composition comprises a plurality of conductive sheets and a plurality of mixture layers of a curable resin and conductive fillers, wherein (A) each conductive sheet is attached to at least one resin-filler mixture layer; (B) at least one of the conductive sheets comprises flexible graphite; and (C) at least one resin-filler mixture layer comprises a thermosetting resin and conductive fillers with the fillers being present in a sufficient quantity to render the resulting flow field plate or bipolar plate electrically conductive with a conductivity no less than 100 S/cm and thickness-direction areal conductivity no less than 200 S/cm2.
A moldable, multiple-layer precursor composition to an electrically conductive composite flow field plate or bipolar plate, said composition comprising at least a first conductive sheet, a second conductive sheet, and a first conductive filler-resin mixture layer disposed between said first conductive sheet and said second conductive sheet, wherein
A moldable, multiple-layer precursor composition to an electrically conductive composite flow field plate or bipolar plate, said composition comprising a plurality of conductive sheets and a plurality of conductive filler-resin mixture layers wherein
A moldable, bi-layer precursor composition to an electrically conductive composite flow field plate or bipolar plate, said composition comprising a first flexible graphite sheet and a first conductive filler-resin mixture layer overlaying said first conductive sheet, wherein said conductive filler is present in a sufficient quantity to render said composition, after being molded into a plate, electrically conductive with a conductivity normal to said flexible graphite sheet no less than 10 S/cm or a conductivity parallel to said flexible graphite sheet no less than 100 S/cm.
Dependencies are inferred from the claim text.