钠离子电池生物质基硬碳负极材料的研究进展

Sodium-ion batteries with cost advantages are considered a useful complement to lithium-ion batteries and the development of low-cost,high-performance electrode materials is the key to the commercialization of sodium-ion batteries. As for anode materials,with the advantages of easy availability of carbon source,easy preparation,and high structural adjustability,hard carbon has great potential of being commercialized. Among the many precursors of hard carbon materials,biomass is favored due to its abundant source and low cost. However,the pore structure and surface characteristics of biomass based hard carbon anode materials have a significant impact on their sodium insertion and extraction performance. In this paper,we summarize the research progress in recent years from the performance influencing factors of biomass-based hard carbon anode,and further discuss the challenges in the commercialization process of biomass-based hard carbon anode for sodium-ion batteries and its future research directions,hoping to provide useful guidelines for future research and commercialization.