钠离子电池生物质基硬碳负极材料的研究进展

Research Progress of Biomass-based Hard Carbon Anode Materials for Sodium-Ion Batteries

具有成本优势的钠离子电池被认为是锂离子电池的有益补充,而电极材料的性能是决定钠离子电池能否实现大规模应用的关键因素之一。负极材料方面,硬碳材料具有碳源易得、制备方法灵活、结构可调控性高等优点,极具商业化应用潜力。在硬碳材料的众多前驱体中,生物质因来源丰富、成本低廉等而备受青睐。但生物质基硬碳负极材料的孔结构及表面特性对其嵌脱钠性能影响较大。本文从生物质基硬碳负极的性能影响因素出发,总结了生物质衍生硬碳负极的研究进展,并进一步讨论了钠离子电池生物质基硬碳负极商业化过程面临的挑战和其未来研究方向,对钠离子电池硬碳负极材料的发展具有一定的指导意义。

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.