Fig. 5From: Na4Mn9O18/Carbon Nanotube Composite as a High Electrochemical Performance Material for Aqueous Sodium-Ion BatteriesCycling performances at 4 C. a Cycling performance comparison of NMO and NMO/CNT electrodes and coulombic efficiency of NMO/CNT electrode. b Cycling performance and coulombic efficiency of NMO/CNT electrode with 1 M Na2SO4 electrolyte. c Cycling performance comparison of NMO/CNT electrodes via the spray-drying method and ball-milling method, respectivelyBack to article page