▎ 摘　　要

NOVELTY - A positive electrode sheet comprises current collector and active material layer arranged in at least one side surface of the current collector. The current collector and active material layer is provided with a safety coating. The safety coating comprises inorganic filler. The inorganic filler comprises iron-manganese-metal-phophorus oxide. USE - Positive electrode sheet used in lithium-ion battery (claimed). ADVANTAGE - The positive electrode sheet has improved ion conductivity and structure stability of the filler, and the phosphate material in the safety coating can be converted into electrochemical active substance, and effectively avoids the waste of the lithium resource, reduces the quality of safety coating, improves the energy density, and reduces the cost. DETAILED DESCRIPTION - A positive electrode sheet comprises current collector and active material layer arranged in at least one side surface of the current collector. The current collector and active material layer is provided with a safety coating. The safety coating comprises inorganic filler. The inorganic filler comprises iron-manganese-metal-phophorus oxide of formula: Fe1-x-yMnxMyPO4, where x is 0-1, y is 0-0.1, x+y is 0-1, and M is chosen from one or combination of tin, chromium, magnesium, titanium, aluminum, zinc, tungsten, niobium or zirconium. An INDEPENDENT CLAIM is included for lithium-ion battery, which comprises positive electrode sheet.