Development of portable fuel cell arrays with printed-circuit technology
By Parkhill, R.L; Knobbe, E.T & Donley, M.S
Published in Journal of Power Sources
NULL
2003
Abstract
Portable hydrogen/oxygen fuel cell power sources were constructed using printed-circuit board (PCB) technology. Multiple iterations of miniature planar fuel cell devices were prototyped, demonstrating fast cycle innovation and dramatic power density improvements in <1 year of development. Several novel flow structure and gas routing designs were explored. Electrical interconnections for configurable voltage were wired on board by printed-circuit traces and vias. Fuel cell device voltages ranging from 1 V single cells to 16 V planar arrays were demonstrated, with power output ranging from <1 to >200 W. The lightweight laminate PCB technology allows the best prototypes to achieve >700 mW/cm2 area power density and >400 mW/cm3 volumetric power density. PCB technology offers an intriguing platform for portable fuel cell development below 1 kW. Possibilities for on board diagnostics/control and further power density improvements are envisioned.
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