期刊论文

Zhu, Huali;Chen, Zhaoyong

英文

Journal of Alloys and Compounds

0925-8388

2016

686

30-37

10.1016/j.jallcom.2016.05.333

This work was financially supported by the National Natural Science Foundation of China (No. 51304031 , 21501015 ), the Key Laboratory of Efficient & Clean Energy Utilization, The Education Department of Hunan Province (No. 2016NGQ005 ), and the Hunan Provincial Innovation Foundation For Postgraduate (No. CX2016B420 ).

本校为第一且通讯机构

The effects of various Al concentration and substitution sites (including Li layer and transition metal layer) on the structural and electrochemical properties of LiNi0.5Co0.2Mn0.3O2 (NMC) materials are systematically investigated. X-ray diffraction, X-ray photoelectron spectroscopy and electrochemical tests confirm that LiAlO2 phase appears in Li1-xAlxNi0.5Co0.2Mn0.3O2 samples and contributes to better lithium ion diffusion coefficient. While Al prefer to form Al-O solid solution in Li(Ni0.5Co0.2Mn0.3)1-yAlyO2 samples, which can improve the st...