Abstract
Lithium air batteries have received much attention recently. However, they have a problem with their low output density due to insufficiency of oxygen. In this study, we focused on lithium air batteries with an electrolyte flow which were considered to promote oxygen transfer. We calculated an electrolyte flow and oxygen transport in the cathodes by Lattice Boltzmann Method (LBM). Then, we compared output performances and pump performances, which achieve the target output (70 kW), between various structures of the cathodes. As a result, it is considered that reducing the flow rate of the pumps is strongly required to realize the reasonable performances of lithium air flow batteries.
