About 95 results
https://drivepatents.com/patents/1092923 · 1 Oct 2003
The durability of a polymer electrolyte fuel cell is very significantly improved by using a tightening pressure of about 2 to 4 kgf/cm 2 of area of electrode; or a tightening pressure of about 4 to 8 kgf/cm 2 of contact area between electrode and separator...
https://drivepatents.com/patents/1093070 · 24 Sep 2003
Provided is a method of producing a membrane and electrode assembly (MEA) comprising: mixing a metal catalyst with pure water, perfluorinated polymer ionomer and a polar organic solvent to prepare a composition for forming a catalyst layer; coating a diffu...
https://drivepatents.com/patents/1093030 · 24 Sep 2003
A proton-permeable layer (9) of hydrophobic material intervenes between membrane (7) and catalyst (6) layers of at least one electrode (2, 3). An Independent claim is included for the method of manufacture of the membrane-electrode unit.
https://drivepatents.com/patents/1093635 · 3 Sep 2003
In order to reduce an assembling man hour of the constituting part for the fuel battery and prevent wrinkles from being generated in an electrolyte membrane, in a constituting part for a fuel battery having electrodes with catalyst in both pole sides of an...
https://drivepatents.com/patents/1093993 · 20 Aug 2003
The present invention discloses an improved gas diffusion layer for use in porous electrodes of polymer electrolyte fuel cells. The gas diffusion layer comprises a gas flow path having a bottom face facing an electrolyte membrane, and the properties of a c...
https://drivepatents.com/patents/1096389 · 2 May 2003
The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell include...
https://drivepatents.com/patents/1096725 · 16 Apr 2003
Electrode has parallel channels (22) for feeding liquid over the active layer (18). Independent claims are included for: (a) an electrode/membrane unit comprising a membrane with electrodes as described above on both sides; and (b) a method for making the ...
https://drivepatents.com/patents/1097142 · 2 Apr 2003
The present invention provides an electrode for a polymer electrolyte fuel cell comprising a high-performance electrode catalyst particle which is sufficiently coated with a hydrogen ion conductive polymer electrolyte and has a water repellent material sui...
https://drivepatents.com/patents/1097811 · 12 Mar 2003
A method of operating a fuel cell of a direct fed type having an anode, a cathode, and an electrolyte is provided, which comprises: using a membrane-electrode assembly formed of a multi-layer composite structure with an anode, cathode and solid polymer ele...
https://drivepatents.com/patents/1098297 · 19 Feb 2003
A reinforced composite ionic conductive polymer membrane, and a fuel cell with improved efficiency by adopting the reinforced composite ionic conductive polymer membrane are provided. The reinforced composite ionic conductive polymer membrane includes: a p...