Issue 36, 2014

Improved electrochemical performance of Li1.2Mn0.54Ni0.13Co0.13O2 by Mg doping for lithium ion battery cathode material

Abstract

Li-rich, Mn-based layered material is one of the most promising cathode materials for next-generation lithium ion batteries. However, this material is subject to severe capacity fading and poor rate capability. When Li was replaced with Mg, the electrochemical performance of the material improved. Structural and elemental analyses indicate an expansion of the unit cell as a result of Mg doping, while the crystal structure remained unaffected. Higher specific capacity and better rate capability with more stable cycling performance were obtained from a sample of Li1.17Mg0.03Mn0.54Ni0.13Co0.13O2 as compared with other samples that were either Mg-free or with Mg atomic content beyond 0.03.

Graphical abstract: Improved electrochemical performance of Li1.2Mn0.54Ni0.13Co0.13O2 by Mg doping for lithium ion battery cathode material

Supplementary files

Article information

Article type
Paper
Submitted
12 Apr 2014
Accepted
18 Jun 2014
First published
23 Jun 2014

J. Mater. Chem. A, 2014,2, 15015-15021

Author version available

Improved electrochemical performance of Li1.2Mn0.54Ni0.13Co0.13O2 by Mg doping for lithium ion battery cathode material

H. Xu, S. Deng and G. Chen, J. Mater. Chem. A, 2014, 2, 15015 DOI: 10.1039/C4TA01790K

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