Micromachining/nanotechnology in direct methanol fuel cell

Fuel cell is a small power generating system. Direct methanol fuel cell, DMFC, can operate at lower temperature such as below 70°C with a simpler system than other fuel cells, and it is considered as one of future power sources for portable electronic devices. However size of DMFC should be more compact in order to replace rechargeable batteries. Here, several current technologies for DMFC system to make the DMFC compact are described. MEMS and nanotechnology play an important roles in these approaches.