In Situ Surficial Polymerization of Ultrahigh-Nickel Cathode Material for Stable Solid-State Lithium Batteries

of recycled PEO after cycling by gel permeation chromatography, which is direct evidence that decomposition (cleavage of the ether linkages) of PEO is inhibited. As a vision, this efficient, high-yield, and simple nanoscale coating method is expected to promote the commercial application of SLMBs.