广西科技大学学报2024，Vol.35Issue(3)：83-90,8.DOI:10.16375/j.cnki.cn45-1395/t.2024.03.011
氮掺杂淀粉基硬碳负极材料制备及其储钠性能研究
Research on the preparation and sodium storage properties of nitrogen-doped starch-based hard carbon anode material
摘要
Abstract
Sodium-ion batteries(SIBs)are one of the most competitive candidates for large-scale energy storage devices in the future.However,their commercial application severely lags behind due to lack of suitable anode materials,so the development of new high-performance SIBs anode materials is a pressing issue.Hard carbon materials have received much attention for their abundant sources and low cost.In this paper,nitrogen-doped hard carbon materials were prepared by doping potato starch with different nitrogen sources for modification with potato starch as a precursor.The test results showed that the electrochemical properties of the nitrogen-doped hard carbon materials were greatly improved compared with those of the undoped-modified materials.The hard carbon material doped with dicyanodiamine as the nitrogen source could still maintain a reversible specific capacity of 220.47 mA∙h/g after 100 cycles at 0.1 A/g,and the hard carbon material with urea as the nitrogen source could maintain a reversible specific capacity of 233.36 mA∙h/g after 100 cycles at 0.1 A/g.It shows that the doping of nitrogen can effectively enhance the ionic conductivity and the reversible specific capacity of hard carbon materials,thus improving the overall electrochemical performance of hard carbon materials.关键词
钠离子电池(SIBs)/硬碳/淀粉/氮掺杂/负极材料Key words
sodium-ion batteries/hard carbon/starch/nitrogen-doped/anode material分类
信息技术与安全科学引用本文复制引用
张志国,杨观华,张杰,王旭,李翼宏..氮掺杂淀粉基硬碳负极材料制备及其储钠性能研究[J].广西科技大学学报,2024,35(3):83-90,8.基金项目
广西科技大学研究生教育创新计划项目(GKYC202317) （GKYC202317）
广西自然科学基金面上项目(2020GXNSFAA297019) （2020GXNSFAA297019）
广西低碳能源材料重点实验室经费资助项目(2020GKLLCEM01) （2020GKLLCEM01）
广西汽车零部件与整车技术重点实验室经费资助项目(2022GKLACVTZZ05) （2022GKLACVTZZ05）
