Research Progress on Sources and Preparation Methods of Hard Carbon Materials for the Negative Electrode of Sodium Ion Batteries
Hard carbon anode material plays a decisive role in the performance of sodium-ion batteries.The preparation methods of hard carbon materials based on different raw materials(asphalt,biomass,organic matter and resin)were reviewed,the problems existing in the preparation methods based on different raw materials were analyzed,and suggestions were put forward for the preparation methods and properties of hard carbon materials in the future,providing a valuable reference for the sustainable development of sodium-ion batteries.