Abstract
A design configuration is presented for integrated series connection of micro direct methanol fuel cells in a planar array. The series path is oriented in a “flip-flop” configuration with electrical interconnections made by thin-film metal layers that coat the flow channels etched on the silicon substrate, presenting the unique advantage of small connection space and low connecting resistance. To overcome the disadvantage of “flip-flop” interconnection that reactant chambers must alternate between fuel and oxidant, an innovative reactant feeding configuration was designed, providing a uniform reactant feeder and reliable hermetic seals for a multitude of unit cavities per cell. The MEMS fabrication process was adopted to fabricate the silicon plates. The elements of reactant feeder were mechanically carved from PMMA and were assembled with the cells by agglutinant. Application of μDMFC stacks as portable power sources were demonstrated using small electric devices powered by this stack.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
