CoMn<SUB>3</SUB>O<SUB>4</SUB> and Fe<SUB>2</SUB>O<SUB>3 </SUB>metal oxides coated polyimide-based carbon fibers as cathode and anode materials for wire-type supercapacitor applications
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초록
내용
In recent years, many researches of the energy storage devices are proceeded to overcome the energy shortage from the fossil fuel. Among the energy storage devices, supercapacitors (SCs) have gained great attention owing to their higher power densities, and longer cycle life compared with other devices. Among them, pseudocapacitors based on transition-metal oxides and wire-type SCs are promising strategies for a high energy and power density with flexible properties to make an excellent energy storage devices. In this work, CoMn3O4 and Fe2O3 were coated on polyimide-based carbon fibers by a facile chemical oxidation with ammonium persulfate and hydrothermal method, respectively. The prepared CoMn3O4 and Fe2O3 polyimide-based carbon fiber electrodes delivered high performance in terms of high specific capacitance, good conductivity and long cyclic stability with flexible properties.