Therefore, the purpose of this study is to be deliberate on the original ascendancy's improvement surrounding the energy and volumetric energy density, cyclability, charging rate, stability, electronic conductivity, and safety. To achieve it, we would prepare the cathode material with utilizing Copper chloride dihydrate (CuCl2•2H2O, 99.99%), Gallic acid monohydrate (C6H2(OH)3COOH, 98%), polyethyleneimine (M.W. 600, 99%) and sodium hydroxide (NaOH, 97% (diluted to 10%)) proportional mixing as a mixture. Afterward, follow the assemble of battery throughout several practical tentative, and conducting accurate data analysis.