▎ 摘　　要

NOVELTY - The battery has an anode chamber and a cathode chamber filled with active sludge and nutrient solution. A proton exchange film is arranged between the anode chamber and the cathode chamber. An anode is arranged with a middle diaphragm. The anode is connected with an external resistor and a cathode through a stainless steel net for forming a loop. A top end of a pool body is formed with an opening. A top cover of the anode chamber is formed with an exhaust hole that is arranged with a decompression valve for exhausting inner part gas, where a prepared graphene modified bioanode and a graphene modified microbial-cathode are utilized as two poles for constructing a dual graphene microbial fuel cell. USE - Environment-friendly graphene microbiological fuel battery. ADVANTAGE - The battery improves anode oxidation efficiency and cathode oxygen, protons and electrons reduction efficiency and accelerates electron transfer rate so as to improve power generation performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an environment-friendly graphene microbial fuel battery preparation method.