电池电极过程可视化与定量化技术的研究进展

吕思奇, 李娜, 陈浩森, 焦树强, 宋维力

Progresses in visualization and quantitative analysis of the electrode process in rechargeable batteries

Siqi LYU, Na LI, Haosen CHEN, Shuqiang JIAO, Weili SONG

图16 (a)X射线CT测试系统示意图与数据分析；(b) 不同SOC的复合正极重构结构；(c) 复合正极重构结构中随机选取区域示意图；(d) 复合正极中石墨与孔的体积比；(e, f) 复合正极中石墨与孔的体积分布；(g, h) 不同电极深度石墨与孔隙体积比[37]

Fig. 16 (a) schematic illustration of the X-ray CT test and data analysis; (b) reconstructed architecture of the composite positive electrode with different SOC; (c) schematic illustration of randomly selected areas in the reconstructed architecture of the composite positive electrode; (d) the volume ratio of graphite and pore in the composite positive electrode; (e, f) the volume distribution of graphite and pore in the composite positive electrode; (g, h) the volume ratio of graphite and pore in the different depth of the electrode[37]