Structural and electrochemical properties of Mg-doped nickel based cathode materials LiNi0.6Co0.2Mn0.2-xMgxO2 for lithium ion batteries | |
Huang, ZJ (Huang, Zhenjun); Wang, ZX (Wang, Zhixing); Zheng, XB (Zheng, Xiaobo); Guo, HJ (Guo, Huajun); Li, XH (Li, Xinhai); Jing, Q (Jing, Qun); Yang, ZH (Yang, Zhihua) | |
刊名 | RSC ADVANCES |
2015 | |
卷号 | 5期号:108页码:88773-88779 |
ISSN号 | 2046-2069 |
DOI | 10.1039/c5ra16633k |
英文摘要 | Layered LiNi0.6Co0.2Mn0.2-xMgxO2 (x = 0, 0.01, 0.03, 0.05) samples have been prepared by co-precipitation and high-temperature solid state methods. The influence of the Mg dopant on its chemical component, crystal structure, surface valence states, electrochemical properties, and Li+ diffusion barrier has been studied. Rietveld refinements confirm that when Mg was substituted for Mn in LiNi0.6Co0.2Mn0.2O2, the cation mixing decreased, the lattice parameters a, c and interslab space thickness decreased, while the c/a ratio increased. Electrochemical testing confirms that the initial coulombic efficiency and cycling stability increase by the substitution of Mg for Mn, and electrochemical polarization decreases. First-principles calculations show that the improvement of rate capability may be attributed to less cation mixing. |
WOS记录号 | WOS:000363417900026 |
内容类型 | 期刊论文 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/5180] |
专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 新疆理化技术研究所_材料物理与化学研究室 |
作者单位 | 1.Cent S Univ, Sch Met & Environm, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China 3.Shihezi Univ, Sch Sci, Dept Phys, Shihezi 832000, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, ZJ ,Wang, ZX ,Zheng, XB ,et al. Structural and electrochemical properties of Mg-doped nickel based cathode materials LiNi0.6Co0.2Mn0.2-xMgxO2 for lithium ion batteries[J]. RSC ADVANCES,2015,5(108):88773-88779. |
APA | Huang, ZJ .,Wang, ZX .,Zheng, XB .,Guo, HJ .,Li, XH .,...&Yang, ZH .(2015).Structural and electrochemical properties of Mg-doped nickel based cathode materials LiNi0.6Co0.2Mn0.2-xMgxO2 for lithium ion batteries.RSC ADVANCES,5(108),88773-88779. |
MLA | Huang, ZJ ,et al."Structural and electrochemical properties of Mg-doped nickel based cathode materials LiNi0.6Co0.2Mn0.2-xMgxO2 for lithium ion batteries".RSC ADVANCES 5.108(2015):88773-88779. |
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