Mechanisms of Air Cathode Pore Structure Parameters and Discharge Regimes on the Performance of Lithium–Air Batteries

As the society pays more attention to energy, various kinds of new energy batteries are coming out. Lithium–air battery is a new energy battery that uses lithium metal as the anode and oxygen in air as the positive reactant. Because of its specific energy comparable to that of fuel cells, lithium–air batteries are the most popular research in the direction of new energy batteries in the past few years. However, there are still some disadvantages of Li–air batteries that prevent them from being commercialized well, such as the accumulation of discharge products in the pores of the cathode, which leads to premature termination of the discharge reaction. Therefore, it is necessary to simulate the battery to investigate the existing problems. In this paper, we focus on the effects of lithium-air battery cathode porosity and discharge current density on battery performance and propose certain optimization strategies to address these problems.