▎ 摘　　要

NOVELTY - Positive electrode structure comprises a collector layer, an active positive electrode layer and a solid electrolyte layer. The solid electrolyte layer is composed of a continuous solid electrolytic polymer, a conductive agent and a binder. The polymer is further distributed in pores between the portion of the active negative electrode layer close to the solid electrolyte layer containing the positive electrode active material particles. USE - Positive electrode structure for battery. ADVANTAGE - By finely controlling the thickness of each layer, the positive electrode can effectively protect the active material and at the same time have high electron conductivity inside the electrode, so that under high voltage, due to the insulating and protective effect of the solid electrolyte, the electrolyte in the battery cannot It is characterized by being oxidized on the surface of the electrode, thus greatly reducing the side reaction of the electrolyte in the positive electrode and the corrosion of the electrolyte to the electrode active material, and effectively improving the long-term cycle performance of the battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing positive electrode structure, which involves (a) providing a uniformly mixed reaction system containing positive electrode active material particles, conductive agent, binder and dispersant, (b) applying the uniform mixed reaction system on the collector layer to obtain an active positive electrode layer/collector layer composite structure, (c) providing polymer solid electrolyte solution, so that the active positive electrode layer/current collector layer composite structure is fully contacted with the polymer solid electrolyte solution, dispersing the polymer solid electrolyte solution on the surface of the active positive electrode layer and partially diffusing into the active positive electrode layer containing the pores between the positive electrode active material particles, and then removing the solvent to form a solid electrolyte layer, thus obtaining the novel positive electrode structure, and (d) providing a polymer solid electrolyte precursor solution, and fully contacting the active positive electrode layer/current collector layer composite structure with the polymer solid electrolyte precursor solution, so that the active monomer in the polymer solid electrolyte precursor solution is formed in the active electrode, the surface of the positive electrode layer, and portion of it diffuses into the pores between the positive electrode active material particles contained in the active positive electrode layer, and then undergoes an in-situ polymerization reaction under heat treatment or light treatment to form a solid electrolyte layer and an active coated positive electrode layer, and then obtaining positive electrode structure; and (2) a battery, which comprises a positive electrode, a negative electrode and an electrolyte, characterized in that the positive electrode adopts the positive electrode structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view showing an internal structure of a novel positive electrode structure. (Drawing includes non-English language text).