In conclusion, we proposed the use

In conclusion, we proposed the use of PIM-1, having intrinsic micropores, as an artificial solid polymer interphase with the aim of suppressing solvent transport while allowing lithium ion transport across the interphase between the Li metal anode and the electrolyte. The introduction of a thin polymer layer with a suitable pore size significantly reduced the contacts between the solvent and Li metal anode by decoupling Li ions from their solvation shells in the electrolyte, thereby improving the inter- facial stability of Li metal anodes over prolonged cycling. We also found that there is an optimum thickness for the artificial solid polymer interphase in terms of the cycle performance and the overpotential of the Li metal anodes. Our strategy demon- strated here could be further improved by optimizing the microstructure and composition of the PIM based artificial solid polymer interphase layer and could be extended to similar polymeric materials that have size-sieving capability as well. Thus, introducing a PIM-based interphase layer could be regarded as a promising approach toward highly stable Li metal anodes for next- generation Li rechargeable batteries.