초록 ▼

A gas impervious bi-polar separator plate for a proton exchange membrane fuel cell having at least one electronically conductive material in an amount in a range of about 50% to about 95% by weight of the separator plate, at least one resin in an amount of at least about 5% by weight of the separato

A gas impervious bi-polar separator plate for a proton exchange membrane fuel cell having at least one electronically conductive material in an amount in a range of about 50% to about 95% by weight of the separator plate, at least one resin in an amount of at least about 5% by weight of the separator plate, and at least one hydrophilic agent, where the electronically conductive material, the resin, and the hydrophilic agent are substantially uniformly dispersed throughout the separator plate.

대표청구항 ▼

[ We claim:] [31.] In a proton exchange membrane fuel cell stack comprising a plurality of individual fuel cell units, each said fuel cell unit comprising an anode, a cathode, an ion exchange membrane disposed between said anode and said cathode, and a separator plate having an anode facing face and

[ We claim:] [31.] In a proton exchange membrane fuel cell stack comprising a plurality of individual fuel cell units, each said fuel cell unit comprising an anode, a cathode, an ion exchange membrane disposed between said anode and said cathode, and a separator plate having an anode facing face and a cathode facing face, said separator plate separating said fuel cell units between an anode of one said fuel cell unit and a cathode of an adjacent said fuel cell unit, the improvement comprising:said separator plate comprising at least one electronically conductive carbonaceous material in an amount in a range of about 50% to about 95% by weight of said separator plate, at least one resin in an amount of at least about 5% by weight of said separator plate, and at least one hydrophilic agent suitable for use in a proton exchange membrane fuel cell for attracting water into said separator plate, whereby said at least one electronically conductive carbonaceous material, said at least one resin, and said at least one hydrophilic agent are substantially uniformly dispersed throughout said separator plate.