Citation: Long-Wei Liang, Ke Du, Zhong-Dong Peng, Yan-Bing Cao, Guo-Rong Hu. Synthesis and electrochemical performance of LiNi_0.6Co_0.2Mn_0.2O₂ as a concentration-gradient cathode material for lithium batteries[J]. Chinese Chemical Letters, ;2014, 25(6): 883-886. doi: 10.1016/j.cclet.2014.04.005 shu

Synthesis and electrochemical performance of LiNi_0.6Co_0.2Mn_0.2O₂ as a concentration-gradient cathode material for lithium batteries

1.
School of Metallurgy and Environment, Central South University, Changsha 410083, China

Corresponding author: Ke Du,
Received Date: 20 December 2013
Available Online: 27 March 2014

Awell-ordered and spherical LiNi_0.6Co_0.2Mn_0.2O₂ cathode material was successfully synthesized from Ni and Mn concentration-gradient precursors via co-precipitation. The crystal structure, morphology and electrochemical properties of LiNi_0.6Co_0.2Mn_0.2O₂ were characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy, and charge-discharge tests. The material delivered an initial discharge capacity of 174.3 mAh/g at 180 mA/g (1 C rate) between 2.8 and 4.3 V and more than 93.1% of that was retained after 100 cycles. In addition, it also exhibited excellent rate capability, high cut-off voltage and temperature performance.
- Lithium secondary batteries,
- LiNi_0.6Co_0.2Mn_0.2O₂,
- Concentration-gradient,
- Electrochemical performance
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Synthesis and electrochemical performance of LiNi0.6Co0.2Mn0.2O2 as a concentration-gradient cathode material for lithium batteries

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通讯作者: 陈斌, bchen63@163.com

Synthesis and electrochemical performance of LiNi_0.6Co_0.2Mn_0.2O₂ as a concentration-gradient cathode material for lithium batteries