Flexible graphite article and fuel cell electrode with enhanced electrical and thermal conductivity
OwnerRobert Angelo Mercuri, Thomas William Weber +1inventors
InventorsRobert Angelo Mercuri, Thomas William Weber, Michael Lee Warddrip
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Abstract
A graphite article useful in producing a membrane electrode assembly comprising a pair of electrodes and an ion exchange membrane positioned between the electrodes is presented. At least one of the electrodes is formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces of the sheet, one of opposed surfaces abutting the ion exchange membrane when used in a membrane electrode assembly. At least some of the fluid channels are interconnected to enable flow of fluid therebetween.
Claims20
A membrane electrode assembly comprising a pair of electrodes and an ion exchange membrane positioned between the electrodes, at least one of the electrodes being formed of a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces thereof and separated by walls of compressed expanded graphite particles, at least some of the walls permitting interconnection of adjacent channels, one of the opposed surfaces abutting the ion exchange membrane.
A graphite article comprising a sheet of a compressed mass of expanded graphite particles having a plurality of transverse fluid channels passing through the sheet between first and second opposed surfaces thereof and separated by walls of compressed expanded graphite particles, at least some of the walls permitting interconnection of adjacent channels.
Dependencies are inferred from the claim text.