Abstract
To develop more electrical aircrafts, energy storage systems with high gravimetric and volumetric energy densities are required. Among the potential solutions, lithium-air batteries appeared as a promising choice due to their high theoretical energy densities. However, such systems suffer from many limitations which induces low practical energy densities.To enhance the batteries performances, a study on the electrode texture was implemented taking into account the limiting phenomena of passivation, pore clogging and oxygen diffusion. First studied by the help of modeling, development of these electrodes was later achieved at lab scale. The bi-porous electrodes obtained could reached the 70 % of the expected capacity. Later, due to the reproducibility issues observed a second study was settled to limit variation of the discharge capacities. It was noticed that lithium-air batteries were extremely sensitive to the parameters impacting kinetics and more especially the nucleation step. So temperature, current density and electrode surface should be perfectly mastered