▎ 摘　　要

NOVELTY - Preparation of three-dimensionally printed high specific energy lithium-ion battery positive and negative electrode material involves: mixing a solid electrode active material, a conductive agent and a binder in a weight ratio of (8-5):(3-1):(2-1), dry grinding, adding a dispersant, continuously grinding, and stirring at a high speed to prepare a paste-like three-dimensional printing electrode slurry; setting printing parameters of three-dimensional printer, printing a battery electrode precursor using the slurry and the printer; and taking out printed precursor, immediately pre-freezing for 8 hours, and freeze-drying at -70°C to -50°C. The solid electrode active material is lithium-nickel-cobalt-manganese oxide, graphite and/or coke. USE - Preparation of three-dimensionally printed high specific energy positive and negative electrode material used for lithium-ion battery (all claimed). ADVANTAGE - The method improves the capacity, energy and power density of the positive and negative electrode material. The negative electrode material has high surface load density, short diffusion path and small resistance in ion transport process. DETAILED DESCRIPTION - Preparation of three-dimensionally printed high specific energy lithium-ion battery positive and negative electrode material involves: mixing a solid electrode active material, a conductive agent and a binder in a weight ratio of (8-5):(3-1):(2-1), dry grinding, adding a dispersant, continuously grinding, and stirring at a high speed to prepare a paste-like three-dimensional printing electrode slurry; setting printing parameters of three-dimensional printer, printing a battery electrode precursor using the slurry and the printer; and taking out printed precursor, immediately pre-freezing for 8 hours, and freeze-drying at -70°C to -50°C. The solid electrode active material is lithium-nickel-cobalt-manganese oxide (LiNi0.8Co0.1Mn0.1O2 and LiNi0.5Co0.2Mn0.3O2), graphite and/or coke. An INDEPENDENT CLAIM is included for the positive and negative electrode material.