CFD Analysis of Multi-Phase Reacting Transport Phenomena in Discharge Process of Non-Aqueous Lithium-Air Battery

摘要: A computational fluid dynamics (CFD) model is developed for rechargeable nonaqueous electrolyte lithiumair batteries with a partial opening oxygen supply to the cathode. Multiphase transport phenomena occurred in bat tery are considered, including dissolved lithium ions and gas liquid electrolyte, solidphase electron transfer i n porous functional materials liquidphase charge transp ort electrolyte. These processes coupled electrochemical reactions at active surfaces, effects of discharge reactiongenerated solid Li2O2 on properties reaction rate evaluated implemented model. The predicted results discussed analyzed terms spatial transient distribution various parameters, such as local concentration, rate, variable Li 2O2 volume fraction porosity, well effective diffusion coefficients. It found that effect product deposited surfaces significant overall battery performance.