【Precursor Material for Sodium-Ion Battery Cathode - Patent for Cathode Precursor Material and Its Preparation Method of Pavaw Sodium-Ion Battery】In June 2024, Zhejiang Pavaw New Energy Co., Ltd. applied for a patent with the publication number of CN202410831325.8, titled "Cathode Precursor Material and Its Preparation Method for Sodium-Ion Batteries." This invention falls within the technical field of battery materials, specifically concerning the cathode precursor material for sodium-ion batteries and its preparation method. In this invention, the precursor material is prepared by using at least one of β-cyclodextrin, glucose, or trimesic acid as a complexing agent during the coprecipitation reaction of metal salt solutions of nickel, copper, and manganese. The secondary particles of this material exhibit a porous, tremella-like spherical shape, possessing high tap density and specific surface area.