About 119 results
https://drivepatents.com/patents/1092307 · 29 Oct 2003
An output decrease may be caused by the temperature difference between the cells located at the ends and the other cells due to heat dissipation from end plates. This invention provides a polymer electrolyte fuel cell capable of avoiding the voltage decrea...
https://drivepatents.com/patents/1092308 · 29 Oct 2003
The present invention relates to a fuel cell comprising a cell stack including plural electrically conductive separator plates and MEAs (electrolyte membrane-electrode assemblies) inserted among the separator plates, more particularly to improvements of th...
https://drivepatents.com/patents/1092314 · 29 Oct 2003
The present invention provides an electrolyte membrane-gasket assembly for a fuel cell, including a polymer electrolyte membrane and a gasket, made of a seal material, covering the peripheral portion of the electrolyte membrane, in which the electrolyte me...
https://drivepatents.com/patents/1092284 · 29 Oct 2003
Provided is an air breathing direct methanol fuel cell pack including membrane electrode assemblies (MEAs) (11) forming a plurality of single cells having an electrolyte membrane (11a), a plurality of anodes (11d) on a first plane of the electrolyte membra...
https://drivepatents.com/patents/1092786 · 8 Oct 2003
A polymer electrolyte fuel cell of the present invention includes conductive separator plates comprising molded plates of a composition comprising a binder, conductive carbon particles whose average particle diameter is not less than 50 µm and not more th...
https://drivepatents.com/patents/1094041 · 13 Aug 2003
The device has at least two plates, a sealing frame and a membrane electrode arrangement between them. The plates, sealing frame and membrane electrode arrangement have through openings and a coolant line passes through at least one through opening, whereb...
https://drivepatents.com/patents/1096569 · 23 Apr 2003
A fuel cell stack (1) comprises two end plates (3) with planar fuel cells between them. A temporarily plastic material (4) is inserted into the stack to equalize stresses during cell assembly. Independent claims are also included for the following: (a) div...
https://drivepatents.com/patents/1096693 · 16 Apr 2003
The present invention provides a polymer electrolyte fuel cell in which neither cross leakage nor outward leakage occurs with the application of low clamping pressures. The polymer electrolyte fuel cell comprises a unit cell, the unit cell comprising: a me...
https://drivepatents.com/patents/1096877 · 9 Apr 2003
Fuel cell comprises a gas diffusion electrode on the anode side and/or on the cathode side having an electrode diffusion zone (21) and a current-reducing component. Electrical resistance of the microscopic contact surface (24) between the electrode diffusi...
https://drivepatents.com/patents/1097366 · 26 Mar 2003
In order to provide a constituting part for a fuel battery in which a number of steps of assembling the constituting parts for the fuel battery can be reduced, and in which a replacing property and a maintenance property of fuel battery cell parts can be i...