生物质衍生碳基材料在钠离子电池负极中的应用 |
苑雪, 李洪基, 白文慧, 李正曦, 杨立滨, 王恺, 陈哲 |
Application of biomass-derived carbon-based anode materials in sodium ion battery |
Xue YUAN, Hongji LI, Wenhui BAI, Zhengxi LI, Libin YANG, Kai WANG, Zhe CHEN |
图16 (a) CC-Pre-800、(b) CC-1200 和(c) CC-1600的高分辨率TEM和SAED图像;(d) 压汞法的孔径分布(插图:总压入体积与碳化温度的关系曲线);(e) NLDFT孔径分布图(插图:CCs的氮吸附/解吸等温线);(f) 电流密度为0.1 C时CCs的循环性能;(g) CCs的SAXS测试结果(插图:闭孔直径与碳化温度的关系曲线);(h) CC-1600原始电极、第1次放电和第200次放电的截面SEM 图像;(i) 不同样品的孔结构比较,包括BET表面积和闭孔体积(真密度测试)[ |
Fig. 16 High-resolution TEM and SAED images of (a) CC-Pre-800, (b) CC-1200, and (c) CC-1600; (d)Size distribution from a mercury intrusion porosimetry (inset: relation curve of total intrusion volume and carbonization temperature); (e) NLDFT pore size distribution (inset: nitrogen adsorption/desorption isotherms); (f) Cyclic capability of CCs at a current rate of 0.1 C; (g) SAXS patterns (inset: relation curve of the diameters of the closed pores and carbonization temperature); (h) Sectional SEM images of pristine, first discharged and 200th dis-charged CC-1600 electrodes; (i) Pore structure comparison between low and high temperature samples including BET surface area and closed pore volume (obtained from true density tests)[ |