Development and performance analysis of a H2/air micro PEM fuel cell stack

Simple Stacking Methods for Silicon Micro Fuel Cells

“…The stack described in [16] is analogous to the parallel flow design in this work, with the difference that in [16], the cells were made of copper. While the measurement conditions between the stack in this work and in [16] differ (back pressure, use of air instead of O 2 and temperature of the stack), it is evident that the current and power densities obtained are comparable to ours: the authors in [16] obtained power densities in the range of 40-60 mW·cm −2 and current densities in the range of 160-220 mA·cm −2 .…”

“…Some examples of vertically stacked micro FC studies do exist [14][15][16][17]. In the macro world, vertically-stacked fuel cells are the norm, while planar stacks are almost unheard of.…”

“…No such restriction in the number of stacked cells exists for the devices described in [16,17]. These micro FC stacks use a configuration known as "bipolar plates", where the flow field plates are conductive and stacked in such a way as to add to the voltage of the cells.…”

“…These micro FC stacks use a configuration known as "bipolar plates", where the flow field plates are conductive and stacked in such a way as to add to the voltage of the cells. Both solutions take care of the distribution of reactants (oxidant and fuel) to all of the cells: in [16], this was achieved by pumping, while in [17], the cells are self-breathing and the liquid fuel is pumped by CO 2 bubble formation at the anode.…”

“…One of these designs uses the same flow topology as [16] (which we call "parallel"), whereas our other solution, "serial", has not been used in micro fuel cells before. In this case, the fuel flows sequentially from one cell to the next (Figure 1).…”