Utilization of Methylene Blue and Banana Peels as RFB Components (Redox Flow Battery)

RFB (Redox Flow Battery) is a secondary battery that provides energy conversion between chemistry and electricity through an alternating redox reaction by 2 pairs of electrons protons. with active ingredient Vanadium (VRB) type widely used has problems such as the price expensive, toxic solvent (H2SO4) corrosive. Therefore, inexpensive environmentally friendly organic electrolyte component emerged, namely Methylene Blue banana peels. electron-proton which provide reversible have potential in electrolyte. Banana peels because they contain carbohydrates, citric acid mineral electrolytes (potassium, sodium salt, phosphorus magnesium) support properties The stages making fermentation peel solution, addition testing (galvanostatic stress). test results showed was able to best performance (efficiency) on produce voltage exceeding VRB output voltage.