Fabrication of micro power source (MPS) using a micro direct methanol fuel cell (μDMFC)for the medical application

摘要

This paper presents the fabrication and test of a micro power source (MPS) using a micro direct methanol fuel cell (μDMFC). Micro power sources are essential for cellular phones, portable electronics and MEMS devices to be miniaturized. The μDMFC has a simple structure. The μDMFC consists of one proton exchange membrane (PEM) and two silicon substrates with channels. The width and the depth of the micro channel are 250 μm and 50 μm, respectively. The dimension of one unit of μDMFC is 16 mm × 16 mm × 1.2 mm. When fuel (methanol: water = 1:1) is supplied to the fabricated cell, the measured output voltage is 100 mV at 25 °C and the atmospheric pressure.