钠离子电池(SIB)由于其相对较低的成本,在便携式电动汽车和间歇性可再生能源存储中具有巨大的应用潜力。目前,硬碳(HC)材料由于其优点被认为是商业上可行的用于SIB的阳极材料,包括更大的容量,低成本,低工作电压,和独特的微观结构。在这些材料中,可再生生物质衍生的硬碳阳极通常用于SIB中。然而,关于生物质硬碳从基础研究到工业应用的报道非常罕见。在本文中,我们从以下几个方面重点研究了生物质衍生硬碳材料的研究进展:(1)硬碳中的钠储存机制;(2)硬碳材料的优化设计策略,合成,杂原子掺杂,材料复合,电解质调制,和预氧化;(3)基于前体源的不同生物质衍生硬碳材料的分类,比较它们的属性,并讨论了不同生物质来源对硬碳材料性能的影响;(4)生物质衍生硬碳阳极在SIBs中的实践挑战和策略;(5)概述了当前生物质衍生硬碳阳极的工业化。最后,我们提出了挑战,战略,并对生物质衍生硬碳材料的未来发展进行了展望。
Sodium-ion batteries (SIBs) have significant potential for applications in portable electric vehicles and intermittent renewable energy storage due to their relatively low cost. Currently, hard carbon (HC) materials are considered commercially viable anode materials for SIBs due to their advantages, including larger capacity, low cost, low operating voltage, and inimitable microstructure. Among these materials, renewable biomass-derived hard carbon
anodes are commonly used in SIBs. However, the reports about biomass hard carbon from basic research to industrial applications are very rare. In this paper, we focus on the research progress of biomass-derived hard carbon materials from the following perspectives: (1) sodium storage mechanisms in hard carbon; (2) optimization strategies for hard carbon materials encompassing design, synthesis, heteroatom doping, material compounding, electrolyte modulation, and presodiation; (3) classification of different biomass-derived hard carbon materials based on precursor source, a comparison of their properties, and a discussion on the effects of different biomass sources on hard carbon material properties; (4) challenges and strategies for practical of biomass-derived hard carbon anode in SIBs; and (5) an overview of the current industrialization of biomass-derived hard carbon
anodes. Finally, we present the challenges, strategies, and prospects for the future development of biomass-derived hard carbon materials.