电极材料储锂行为及其机制的原位透射电镜研究进展

柯承志, 肖本胜, 李苗, 陆敬予, 何洋, 张力, 张桥保

Research progress in understanding of lithium storage behavior and reaction mechanism of electrode materials through in situ transmission electron microscopy

Chengzhi KE, Bensheng XIAO, Miao LI, Jingyu LU, Yang HE, Li ZHANG, Qiaobao ZHANG

图5 (a)～(l) Si纳米柱沿[100]、[110]及[111]晶向在不同锂化状态下的SEM顶视图；(m), (n) Si纳米柱各晶向对应横截面尺寸和横截面面积变化的统计数据图[55]；(o), (p) Si纳米线在锂化过程中微结构演变的TEM图；(q) 逐步锂化的Si纳米线的三维模拟图[56]

Fig. 5 (a)～(l) Top-view SEM images of Si nanopillars along [100], [110] and [111] directions at different lithiation states; (m), (n) Statistical data of changes in cross-sectional dimensions and cross-sectional area along these three orientations[55]; (o), (p) Microstructural evolution of Si nanowire during lithiation; (q) 3D simulation plot of a progressively lithiated Si nanowire[56]