Abstract
The aqueous lithium–air battery receives much attention because of its high theoretical energy density; however, it is necessary to clarify the reaction and mass transport of the electrolytic solution in efforts to obtain much higher current density. In this study, numerical simulation employing the lattice Boltzmann method realized coupled simulation of transport phenomena of Li+ and O2 in the discharge process. The numerical results suggest the importance of supplying the electrolyte with sufficient O2 to achieve discharge with high current density. The results of simulation indicate that a high-pressure O2 supply and increased area of the air/electrolyte interface are effective solutions to realizing discharge with high current density.
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