▎ 摘　　要

NOVELTY - A sodium-ion battery cathode preparing method involves adopting ball milling and ball milling the block red phosphorus to nano red phosphorus. The nano red phosphorus and graphene is ball milled to compound to obtain the nano red phosphorus and graphene composite material, adopted ball milling method and ball milled the nano red phosphorus and graphene composite material and barium titanate to obtain the active material. The active material and a binder are mixed to conductive agent, followed by coating, drying and slicing to obtain the finished product. USE - Method for preparing sodium-ion battery cathode. ADVANTAGE - The method enables preparing the sodium-ion battery cathode with better large current, high tap density, mass ratio of large capacity and high energy density. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a sodium-ion battery cathode (2) a sodium ion battery.