Abstract
Herein, we construct a polymer protective layer on LiFe0.2Mn0.8PO4/C particles with hexamethylene diisocyanate via the onium ionization-polymerization reaction. This membrane obviously improves LiFe0.2Mn0.8PO4/C's rate capability and cyclic stability. It exerts a more significant effect on samples with less carbon, demonstrating its function to ameliorate the conductive network.