▎ 摘　　要

NOVELTY - Positive pole piece, comprises a positive current collector, where upper and lower surfaces of the anodecurrent collector are respectively coated with a layer of anode active material, the anode active material layer is specifically the first anode active material layer, or the second anode active material layer, the first anode active material layer includes an anode active material, a conductive agent, a binder and a dispersant, the second anode active material layer includes an anode active material, a conductive agent and a binding agent, the anode active material is a regenerated lithium iron phosphate material, and the specific surface area of the regenerated lithium iron phosphate material is 20±2 m2/g. USE - Used as positive pole piece. ADVANTAGE - The anode utilizes the lithium iron phosphate material of the anode sheet after recycling as anode, optimizing by the system and technique, improving the processing process of the pole piece; constructs excellent conductive network; reduces the polarization impedance of the secondary reaction is increased; and improves the electrochemical performance of the regenerated lithium iron phosphorus material, has important practical significance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: battery; and preparation method of the anode sheet.