Abstract: A modular fuel cell power system includes a coolant source, a reactant source and a plurality of fuel cell modules. Each of the fuel cell modules includes a fuel cell stack and a fluid distribution plant in fluid communication with the reactant source, coolant source and fuel cell stack. The fluid distribution plant controls the flow of reactant between the reactant source and fuel cell stack. The fuel cell stacks are configured to be selectively electrically connected.
Abstract: A membrane electrode assembly for a fuel cell is disclosed, which comprises at least one porous ionomer containing layer disposed at the interface between the cathode electrocatalyst material and the ion exchange membrane of the fuel cell. The porous ionomer containing layer comprises a catalyst migration impeding compound. The membrane electrode assembly exhibits improved stability against Pt dissolution and Pt-band formation within the ion exchange membrane, hence having improved durability and lifetime performance.
April 15, 2011
Date of Patent:
July 19, 2016
Daimler AG, Ford Motor Company
Dmitri Bessarabov, Sumit Kundu, Stephen Lee, Scott McDermid
Abstract: Additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells in order to improve both durability and performance. The additives are chemical complexes comprising certain metal and organic ligand components.
Abstract: A fuel storage system includes a storage vessel including a dielectric liner, a voltage sensor formed by a pair of plates disposed on opposing surfaces of the liner, and a controller configured to determine a gas pressure in the storage vessel based on voltages measured by the sensor.
Abstract: An attachment joint for attaching a first panel to a second panel includes a threaded bolt, a cooperating speed nut, and a support plate interposed between the speed nut and a surface of the first panel opposite a mating surface of the first panel. The support plate is configured to engage and support a contour formed in an edge of the first panel. A motor vehicle panel subassembly including a first panel having a mating surface and an opposed surface and including at least one contour formed in an edge thereof and a second panel having a cooperating mating surface and a cooperating edge contour is assembled using the described attachment joint. The first panel may be a plastic motor vehicle fascia and the second panel may be a metal motor vehicle body panel such as a fender.