... decreases from 0.5 to 0.25M, the discharge capacity of Li-O 2 sharply drops at various current densities. The mass transfer of Li + determines the discharge capacity of Li-O 2 batteries with dilute electrolytes (≤0.25 M). In contrast, the O 2 supply is dominant regarding the discharge capacity when...

... specific surface area of 2868.4 m 2 /g. First, we find that the commercial carbons achieve similar discharge capacities of ∼2.50 Ah/g at 0.5 mA/cm 2 . The micropores in carbon materials result in a high specific surface area but cannot help to achieve higher discharge capacity because it cannot accommodate...