Figure 3From: Carbon nanotube/Co3O4 composite for air electrode of lithium-air batteryInitial charge and discharge profiles. The electrodes containing the CNT/Co3O4 composite and only CNT are at constant current densities of 0.2, 0.4, and 0.6 mA·cm-2 in the voltage range of 4.35 to 2.35 V.Back to article page