Design and fabrication of a silicon-based direct methanol fuel cell with a new cathode spoke structure

▶ We present a self-breathing micro direct methanol fuel cell (μDMFC) with a new cathode spoke configurations. ▶ The spoke structure can increase the efficiency of oxygen mass transport, reduce the PEM resistance with increment of membrane water content. ▶ We fabricate μDMFCs using silicon-based MEMS technologies and investigate experimentally at room temperature with 1 M methanol solution.