The power density output of microbial fuel cells is enhanced by optimizing the continuous flow of nutrient to obtain a constant rate of electricity production, and developing new electrodes material (optimization of surface roughness to increase the effective surface available to accommodate the bacteria). A cheaper, membraneless microbial fuel cell design is at the moment under investigation

Publications:

D. Vigolo, T. Al-Housseiny, Y. Shen, F. O. Akinlawon, S. Al-Housseiny, R. K. Hobson, A. Sahu, K. I. Bedkowski, T. J. DiChristina and H.A. Stone. Flow dependent performance of microfluidic microbial fuel cells. Physical Chemistry Chemical Physics, 16 (24): 12535 – 12543, 2014.