Biofuel——one kind of green new energy

Common battery can be very harmful to environment.This article introduces the biofuel,one kind of green new battery.Based on oxidation-reduction reactions of energy metabolism,It presents the definition of the biofuel,classifies the biofuel into three kinds initially.Furthermore,it clarifies the priciples and characteristics of biofuel.The article reconnends possible solutions to promote its effects.The author points out the significance of biofuel study to the crisis of energy and environment.