Pacific Northwest National Laboratory
Li metal is studied as the anode materials for Li-ion and Li-S batteries, but protection of the reactive Li surface is a significant challenge. In this presentation, we will discuss new strategies to avoid undesirable reactions on the electrode surfaces. Our new electrode design can significantly reduce the formation of the surface reaction products, and thus greatly improve the cycling stability. Excellent high rate capability and long cycle stability are obtained as compared with traditional electrodes. Specific examples will be provided for Li-S batteries, and the fundamental reaction mechanisms will be discussed.