James F. McElroy

TL;DR: In this article, a fuel cell system with a hydrogen purification subsystem is described, which can concentrate hydrogen from the fuel exhaust for recirculation or storage and charge a hydrogen storage device for system use such as meeting transient fuel cell load increases.

TL;DR: In this article, a fuel cell electrode composition includes a catalyst, and a non-electrolytic material different than the catalyst, where the catalyst and the non-electricity-sensitive material compose a fuel-cell electrode.

TL;DR: In this article, the authors proposed a method of operating a fuel cell system, including the following steps: flowing hydrogen from a hydrogen supply conduit through a fuelcell to provide an electric current to a load coupled to the fuel cell, actuating an electrochemical hydrogen separator in a first mode of operation of the system to transfer hydrogen from the hydrogen supply manifold to a hydrogen storage vessel, and actuating a hydrogen expander in a second mode of operating the system in order to inject hydrogen into a process stream.

TL;DR: A solid oxide fuel cell (SOFC) as discussed by the authors includes a cathode electrode, a solid oxide electrolyte, and an anode electrode having a first portion and a second portion, such that the first portion is located between the electrolyte and the second portion.

TL;DR: In this paper, a fuel cell cascade flow system was proposed, where under certain conditions the system includes two fuel cell stacks that form a fuel-cell cascade, and under other conditions at least one reactant gas flows in parallel through the two stacks.