One-Dimensional Assembly of Conductive and Capacitive Metal Oxide Electrodes for High-Performance Asymmetric Supercapacitors
Midhun Harilal, Baiju Vidyadharan, Izan Izwan Misnon, Gopinathan M. Anilkumar, Adrian Lowe, Jamil Ismail, Mashitah M. Yusoff, Rajan Jose
Electrospinning is used to create a one-dimensional morphology made up of nanograins of two metal oxides, one with high electrical conductivity (CuO) and the other with higher charge storability (CuO/CuO) (Co3O4). When utilised as an asymmetric supercapacitors electrode, the CuO–Co3O4 nanocomposite nanowires exhibit particular capacitance, high rate capability, and good cycling stability compared to single-component nanowire equivalents. Practical symmetric (SSCs) and asymmetric supercapacitors are built and compared utilising commercially activated carbon, CuO, Co3O4, and CuO–Co3O4 compound nanowires. CuO–Co3O4 ASCs using aqueous alkaline electrolytes attain a high energy density of 44 Wh kg–1 at a power density of 14 kW kg–1, allowing them to store high energy faster. To improve the performance of electrical and electrochemical devices, we can use the hybrid nanowire technique.
Find out more here.