X射线衍射Rietveld精修及其在锂离子电池正极材料中的应用
杨卓(
), 卢勇, 赵庆, 陈军()
), 卢勇, 赵庆, 陈军()
X-ray Diffraction Rietveld Refinement and Its Application in Cathode Materials for Lithium-ion Batteries
YANG Zhuo(), LU Yong, ZHAO Qing, CHEN Jun()
), LU Yong, ZHAO Qing, CHEN Jun()
图8. 高镍正极LiNi0.8Co0.1Mn0.1O2的充放电原位XRD表征结果[
Fig. 8. In situ XRD characterization of Ni-rich cathode LiNi0.8Co0.1Mn0.1O2(NCM811) during charge-discharge (© 2015, ECS)[
(a) In-situ XRD patterns of NCM811 cycled between 3.0-4.4 V at a rate of C/100 for two cycles; (b) Cell parameters c and a as functions of specific capacity and cell potential; (c) XRD refinement patterns, corresponding cell parameters and Li/Ni occupation information of fresh NCM811 electrode and the recovered electrodes that cycled 200 times to 4.1, 4.2, 4.3 and 4.4 V, respectively. 1 Å=0.1 nm; Ch: Charged; DisCh: Discharged. Colorful figures are available on website
