生物质多孔碳应用于锂硫电池正极研究进展

Research progress on biomass porous carbon applied in lithium-sulfur battery cathode

锂硫电池作为一种环保可持续发展的储能技术备受瞩目。然而,在实际应用中,锂硫电池的性能面临着一些重要挑战,包括硫正极的体积膨胀、电极的循环稳定性以及锂负极的安全性问题。生物质多孔碳发达的空隙结构和巨大的比表面积以及丰富的官能团,能够有效地吸收正极活性物质,应用在锂硫电池中具有广泛的应用前景,对生物质正极碳材料的制备和优化策略进行了详细阐述,讨论了生物质碳材料的制备方法,杂原子的修饰,及生物质碳基复合材料应用于锂硫电池正极材料,并对未来的发展前景做出了展望。

Lithium-sulfur batteries have attracted much attention as an environmentally friendly and sustainable energy storage technology.However,in practical applications,the performance of lithium-sulfur batteries faces some important challenges,including the volume expansion of the sulfur cathode,the cycling stability of the electrode,and the safety of the lithium anode.Biomass porous carbon has a well-developed pore structure,a huge specific surface area and abundant functional groups,which can effectively absorb the cathode active substances,and has a wide application prospect in lithium-sulfur batteries.The preparation and optimization strategies of biomass cathode carbon materials were summarized in detail.The preparation methods of biomass carbon materials,the modification of heteroatoms,and the application of biomass carbon-based composites in cathode materials for lithium-sulfur batteries were discussed.The future development prospects were made.