%P 820-829
%T Recycling the Spent Lithium-ion Battery into Nanocubes Cobalt Oxide Supercapacitor Electrode
%A Z.H. Bakr
%A E.A.A. Aboelazm
%A C.S. Khe
%A G.A.M. Ali
%A K.F. Chong
%V 20
%D 2024
%N 6
%R 10.2174/0115734137265230231020181833
%O cited By 0
%L scholars20028
%J Current Nanoscience
%X Background: Cobalt oxide nanocubes have garnered significant attention as potential supercapacitor electrodes due to their unique structural and electrochemical properties. The spent lithium-ion batteries (LiBs) are considered as zero-cost source for cobalt oxide production. Objectives: The aim of this work is to recover cobalt oxide from spent LiBs and study its electrochemical performance as a supercapacitor electrode material. Methods: This study uses an electrodeposition method to obtain cobalt oxide honeycomb-like anodes coated on Ni foam substrates from spent Li-ion batteries for supercapacitors applications. The effect of annealing temperature on the cobalt oxide anode has been carefully investigated; 450ºC annealing temperature results in nanocubes on the surface of the cobalt oxide electrode. X-ray diffraction confirmed the formation of the Co3O4-NiO electrode. Results: The Co3O4-NiO nanocubes electrode has shown a high specific capacitance of 1400 F g-1 at 1 A g-1 and high capacitance retention of ~96  after 2250 cycles at a constant current density of 10 A g-1 compared to 900 F g-1 at 1 A g-1 as for prepared Co3O4 honeycomb. Conclusion: This strategy proves that the paramount importance of Co3O4-NiO nanocubes, meticulously synthesized at elevated temperatures, as a supremely effective active material upon deposition onto transition metal foam current collectors, establishing their indispensability for supercapacitor applications. © 2024 Bentham Science Publishers.
%K Annealing; Anodes; Capacitance; Electrochemical electrodes; Honeycomb structures; Ions; Lithium-ion batteries; Nickel oxide; Recycling; Supercapacitor; Transition metal oxides; Transition metals; X ray diffraction, Annealing temperatures; Co3O4-NiO electrode; Electrochemical performance; Electrode material; Electrodeposition methods; Nanocubes; Spent lithium-ion batteries; Supercapacitor application; Supercapacitor electrodes; X- ray diffractions, Cobalt compounds, cobalt oxide nanocube; lithium ion; nanocube; nickel; unclassified drug, Article; controlled study; current density; cyclic voltammetry; electrochemistry; electrodeposition; foam; inductively coupled plasma mass spectrometry; recycling; room temperature; scanning electron microscopy; X ray diffraction