▎ 摘　　要

NOVELTY - Shell comprises a polymer ceramic layer comprising a ceramic composite structure and a polymer. The ceramic composite comprises ceramic particles and a coating layer set on the surface of the ceramic particles. The material of the coating layer comprises a layered material. the ceramic particles comprise at least one of aluminum oxide, zirconium dioxide, silicon nitride, silica, titania, aluminum nitride, silicon carbide and silicon, and the polymer comprises polyphenylene sulfide, polycarbonate, polyamide, polybutylene terephthalate and/or polymethyl methacrylate. A protective layer is set on the surface of the polymer ceramic layer. The layered material comprises a two-dimensional material comprising graphene, oxidized graphene, transition metal family compound and/or black phosphorus. It comprises graphite or graphite oxide. The coating rate of coating layer on surface of ceramic particle is ≥ 70%. The grain diameter of ceramic particles is 0.5-m2μ m. USE - The shell is useful in the electronic device. ADVANTAGE - The shell has excellent protection range, and provides electronic device with excellent appearance, texture and protection range, can be easily and economically manufactured with high productivity, has improved appearance and texture of the electronic device. The electronic device has excellent heat resistance, heat resistance and heat dissipation property, and can be manufactured easily and efficiently. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing shell; and an electronic device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the shell for an electronic device. 10Polymer ceramic layer 100Shell