Synthesis of Mn3O4 on carbon cloth for flexible supercapacitors

Mn₃O₄@CC electrodes were synthesized via a fast one-step molten salt method for flexible quasi-solid symmetric supercapacitors. Mn₃O₄ grows rapidly in a high polarity molten salt system and strongly anchors to carbon cloth. The molten salt method can realize sodion embedded in Mn₃O₄ and then improve the conductivity and capacitance. The results show that the Na-0.9-based supercapacitor exhibits a high capacitance of 1225.7 mF cm⁻² at 5 mA cm⁻². The preparation method, design strategy on structure of composition in this work will provide a novel route to realize high-performance flexible supercapacitors.