Skip to Content
Find More Like This
Return to Search

Highly conductive, multi-layer composite precursor composition to fuel cell flow field plate or bipolar plate

United States Patent

February 15, 2011
View the Complete Patent at the US Patent & Trademark Office
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/cm.sup.2.
Jang; Bor Z. (Centerville, OH), Zhamu; Aruna (Centerville, OH), Guo; Jiusheng (Centerville, OH)
Nanotek Instruments, Inc. (
11/ 715,786
March 9, 2007
The present invention is based on the research results of a project supported by the US Department of Energy (DOE) SBIR-STTR Program. The US government has certain rights on this invention.