Design and fabrication of novel portable passive DMFC stack

摘要

We designed and fabricated a new portable passive DMFC stack with its volume significantly reduced. Its high efficiency and load regulation performance were also demonstrated through experiments, and its stability seemed to be very good. We achieved a maximum power density of 3.9mW/cm~2 with a 2M methanol concentration under ambient conditions. This performance is better than that of a conventional DMFC. The volume of the 10-cell series connection DMFC stack is only 42mm×42mm×40mm. Due to its stable performance and easy fabrication, this structure is believed to be applicable for portable small-scale DMFC stack.