BIOFUEL CELL

A biofuel cell includes a cathode, an anode, and a microbial community. At least one of the anode and the cathode contains a biochar prepared from a husk as an electrode material, and the anode is located in the microbial community. By using the biochar prepared from the husk as the electrode material, not only can the power density of the biofuel cell be increased, but the economic benefits of waste recycling can also be achieved.