The low ionic conductivity and Li
+ transference number (
) of solid polymer electrolytes (SPEs) seriously hinder their application in lithium‐ion batteries (LIBs). In this study, a novel single‐ion lithium‐rich imidazole anionic porous aromatic framework (PAF‐220‐Li) is designed. The abundant pores in PAF‐220‐Li are conducive to the Li
+ transfer. Imidazole anion has low binding...