Figure 4From: Carbon nanotube/Co3O4 composite for air electrode of lithium-air batteryDischarge profiles of the air electrodes containing the CNT/Co 3 O 4 composite for the initial three cycles. At a current density of (a) 0.2 mA·cm-2, (b) 0.4 mA·cm-2, and (c) 0.6 mA·cm-2. (d) Cyclic performance of the electrodes (current density, 0.4 mA·cm-2).Back to article page