Syntheses and Performance of layered LiNixCo1-2xMnxO2 as Cathode Materials for Lithium-Ion Batteries
- DOI
- 10.2991/icsmim-15.2016.172How to use a DOI?
- Keywords
- Lithium-ion batteries, Cathode material, LiCo1-2xNixMnxO2, Metal acetate decomposition
- Abstract
The layered cathode materials LiNixCo1-2xMnxO2(x=1/11, 2/11, 3/11, 4/11, 5/11) powders for lithium-ion batteries were synthesized by metal acetate decomposition technique. The evolution of the structural properties and electrochemical performances of LiNixCo1-2xMnxO2 with Co content decreased were investigated by X-ray diffraction (XRD) and rietveld refinement, scanning electronic microscopy (SEM) and galvanostatic charge and discharge cycle. The results showed that the appropriate substitution of Co by Ni, Mn could greatly improve the performances of the as-prepared materials in capacity, initial columbic efficiency, rate ability and cycle capability. Among the series of materials, the optimal performance belonged to Li Ni3/11Co5/11Mn3/11O2, which delivered an initial discharge capacity of 157.6 mAh•g-1 and preserved 150.4 mAh•g-1 after 30 cycles in the voltage range of 2.5 4.3 V at 0.2 C. Comparative cycle data at 0.5 C and 1.0 C were presented implying that the LiNi3/11Co5/11Mn3/11O2 also had a significantly improvement in rate capability.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Zhao Jin AU - Xinyu Jiang AU - Xiangzhe Liu AU - Xin Wang AU - Jinhua Luo AU - Jijun Feng PY - 2016/01 DA - 2016/01 TI - Syntheses and Performance of layered LiNixCo1-2xMnxO2 as Cathode Materials for Lithium-Ion Batteries BT - Proceedings of the 2015 4th International Conference on Sensors, Measurement and Intelligent Materials PB - Atlantis Press SP - 938 EP - 941 SN - 2352-538X UR - https://doi.org/10.2991/icsmim-15.2016.172 DO - 10.2991/icsmim-15.2016.172 ID - Jin2016/01 ER -