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High power density fuel cell comprising an array of microchannels

United States Patent

8,557,480
October 15, 2013
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A fuel cell according to one embodiment includes a porous electrolyte support structure defining an array of microchannels, the microchannels including fuel and oxidant microchannels; fuel electrodes formed along some of the microchannels; and oxidant electrodes formed along other of the microchannels. A method of making a fuel cell according to one embodiment includes forming an array of walls defining microchannels therebetween using at least one of molding, stamping, extrusion, injection and electrodeposition; processing the walls to make the walls porous, thereby creating a porous electrolyte support structure; forming anode electrodes along some of the microchannels; and forming cathode electrodes along other of the microchannels. Additional embodiments are also disclosed.
Morse; Jeffrey D. (Northampton, MA), Upadhye; Ravindra S. (Pleasanton, CA), Spadaccini; Christopher M. (Oakland, CA), Park; Hyung Gyu (Zurich, CH)
Lawrence Livermore National Security, LLC (Livermore, CA)
12/ 829,316
20110053018
July 1, 2010
The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.