Catalysis of a LiF-rich SEI by aromatic structure modified porous polyamine for stable all-solid-state lithium metal batteries

POP fillers containing aromatic groups with internal π–π effect can catalyze the decomposition of LiTFSI to form a stable LiF-rich SEI layer and inhibit the growth of lithium dendrites, which helps the stable cycle of PEO-based solid-state batteries.