Figure 4: Comparison of energy densities among batteries and EFCs.
From: A high-energy-density sugar biobattery based on a synthetic enzymatic pathway

EFCs are powered by 500 mM methanol, 7.2% wt/v glucose or 15% wt/v maltodextrin or dehydrated fuels at a voltage of 0.5 V. More information is available in Supplementary Table S3.