▎ 摘　　要

NOVELTY - The method involves (a) placing a first monomer in a battery assembly to assemble an electric core, (b) injecting a solution containing a second monomer into the electric core, soaking, and then aggregating the in situ solid state battery, and (c) reacting the aggregate reaction of the first monomers and the second monomers with each other. USE - Method for preparing in-situ solid-state battery e.g. lithium secondary battery, lithium sulfur battery and lithium ion battery. ADVANTAGE - The method solves the problem of uneven aggregate caused by uneven temperature distribution of the battery core or different local microenvironments in the traditional in-situ solid-state method; and improves the uniformity of the in-situ solid-state electrolyte, and improves the overall performance of the solid-state battery.