▎ 摘　　要

NOVELTY - Preparing all-solid-state lithium-ion battery involves ball milling positive electrode material, conductive agent Super P (RTM: conductive carbon black) and dispersant, coating the obtained slurry by the ball milling treatment on the carrier tape, and then drying to obtain positive electrode layer. The aluminum powder and dispersant are ball milled, and then coated the resulting slurry on a surface of the positive electrode layer as the positive electrode current collector layer. The positive electrode active material, solid electrolyte and dispersant are ball milled, and then coated the resulting slurry on the other surface of the positive electrode layer as the first transition layer. USE - Method for preparing all-solid-state lithium-ion battery based on multilayer ceramic capacitor (MLCC) structure. ADVANTAGE - The method prepares the all-solid-state lithium-ion battery in a simple, cost-effective and eco-friendly manner with excellent cycle stability and density retention rate of 93%. DETAILED DESCRIPTION - Preparing all-solid-state lithium-ion battery involves ball milling positive electrode material, conductive agent Super P (RTM: conductive carbon black) and dispersant, coating the obtained slurry by the ball milling treatment on the carrier tape, and then drying to obtain positive electrode layer. The aluminum powder and dispersant are ball milled, and then coated the resulting slurry on a surface of the positive electrode layer as the positive electrode current collector layer. The positive electrode active material, solid electrolyte and dispersant are ball milled, and then coated the resulting slurry on the other surface of the positive electrode layer as the first transition layer. The solid electrolyte and dispersant are ball milled, and then coated the resulting slurry on the surface of the former transition layer as a solid electrolyte layer. The solid electrolyte, lithium metal powder, lithium powder surface protective agent and dispersant are ball milled, and then coated the resulting slurry on the surface of the solid electrolyte layer as another transition layer. The lithium metal powder, additive powder and dispersant are ball milled, and then coated the resulting slurry on the surface of the latter transition layer as the negative electrode layer. The aluminum powder and the dispersant are ball milled, and then coated the resulting slurry on the surface of the negative electrode layer as the negative electrode current collector layer. The structure formed by the positive electrode current collector layer, the positive electrode layer, the former transition layer, the solid electrolyte layer, the latter transition layer, the negative electrode layer and the negative electrode current collector layer are formed by hot pressing to enhance the density of the interface contact between the materials to obtain all solid-state battery cell. The all-solid-state battery cells are connected in series or in parallel by using lamination, and then hot-compression molding is performed to obtain the all-solid-state battery.