About 46 results
https://drivepatents.com/patents/1070204 · 8 Feb 2006
Disclosed is a unitized electrochemical cell sub-assembly having a first separator plate and a second separator plate that each has a first surface. A recess is located in at least one of the first surfaces to define a chamber adjacent the periphery of the...
https://drivepatents.com/patents/1070321 · 1 Feb 2006
A cell (12) for use in a solid polymer electrolyte fuel cell (10), including a membrane/electrode assembly (18) including a fuel electrode (16a) and an oxidant electrode (16b) disposed on either side of a solid polymer electrolyte membrane (14), the assemb...
https://drivepatents.com/patents/1070882 · 11 Jan 2006
The method involves depositing a polymerizable ionic semi-membrane (23) in a pasty or liquid state, on one of identical sub-assemblies (20a-20b) to completely cover its current collector (22). The obtained sub-assemblies are applied against each other to o...
https://drivepatents.com/patents/1071561 · 21 Dec 2005
The membrane electrode is formed with a membrane [10] that is sandwiched between two gas diffusion layers and is set into an elastic sealing element [11] that encloses the edges. The sealing element is formed with a ribbed structure [4-7] having rectangula...
https://drivepatents.com/patents/1073091 · 26 Oct 2005
The sheet has a connecting ridge between two spring tabs (3a, 3b) that bent out of a plane of the sheet. A component (11) exercises a force on the tips of the tabs when a counter-force is exercised on the sheet. The spring tabs are arranged and formed such...
https://drivepatents.com/patents/1073695 · 28 Sep 2005
A cell-voltage measuring structure for a fuel cell stack, in which a plurality of unit cells, having conductive separators which includes anode-side separators and cathode-side separators to form pairs of unit separators with the anode-side separators and ...
https://drivepatents.com/patents/1075625 · 27 Jul 2005
A separator (13) comprises a first and second metal plates (14, 16) laid over each other. A cooling medium flow passage (42) is integrally provided between the first and second metal plates (14, 16). The cooling medium flow passage (42) has inlet buffer po...
https://drivepatents.com/patents/1079472 · 9 Mar 2005
A method of starting up at a subzero temperature a solid polymer electrolyte fuel cell stack that is formed by stacking a plurality of layers of separators and membrane electrode assemblies having a solid polymer electrolyte membrane and electrodes. The me...
https://drivepatents.com/patents/1081403 · 22 Dec 2004
An electrochemical cell subassembly (55) for use within a fuel cell for the generation of electricity. The electrochemical cells subassembly (55) comprises at least one component in the form of a cell frame (58, 64) with the or each cell frame (58, 64) bei...
https://drivepatents.com/patents/1083061 · 20 Oct 2004
The invention refers to a fuel cell comprising an electrode, said electrode having an edge portion defining an inner portion and said electrode being under pressure. According to the invention, at least a part of said edge portion is under less pressure as...