Improved a carbon based porous cathode material for lithium air batteries

In this study, catalysts of Li, Cu containing composites were prepared with sol-gel method to use in lithium air batteries. Carbon powder was added catalysts to increase electrical conductivity. Different glycine amounts and mol ratios of lithiumcopper were added in catalysts to prepare the catalysts. Porous oxide electrodes were made after LiCu calcined at 600 °C. Catalytic efficiency of electrodes was investigated using cyclic voltammetry, electrochemical impedance spectroscopy and current-potential curves techniques. Battery performance tests was measured using prepared catalysts as cathode at coin cell and MTI battery cells. It is investigated that, change of surface morphology, pore structure and particle size using XRD, XRF, SEM, TEM ve BET analyzes after calcinations process. The all conditions were performed with battery tests. The most effective catalyst was procured by preparing lithium-copper oxide containing catalyst, which has 493 mA h/g. The capacity was improved as 987 mA h/g using gas diffusion layer and different seperators in a coin cell.