Citation: WANG Xu-Yang, YE Xue-Hai, ZHI Xiao-Ke, HE Ai-Zhen, ZHAO Zhen, ZHANG Su, SHI Jie. Effects of AlF₃ Coating on the Electrochemical Performance of Li_1.2Mn_0.534Ni_0.133Co_0.133O₂ Cathode Materials[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(4): 774-778. doi: 10.3969/j.issn.1001-4861.2013.00.067 shu

Effects of AlF₃ Coating on the Electrochemical Performance of Li_1.2Mn_0.534Ni_0.133Co_0.133O₂ Cathode Materials

1.
CNOOC Tianjin Chemical Research & Design Institute, Tianjin 300131, China

Received Date: 26 August 2012
Available Online: 28 September 2012

Li_1.2Mn_0.534Ni_0.133Co_0.133O₂ cathode material of lithium ion batteries was prepared by co-precipitation method, and then the cathode material was coated by AlF₃. The experiment results showed that the electrochemical properties of AlF₃-coated material were improved obviously. Before coating, the initial discharge capacity was 253 mAh·g^-1 at 0.2C with a charge/discharge efficiency of only 88.8%. However, after coating, the initial discharge capacity was 294 mAh·g^-1 at 0.2C with a charge/discharge efficiency of 96.4%. Similarly, the capacity retention was also improved through AlF₃ coating. The pristine material delivered a discharge capacity of only 185 mAh·g^-1 (with capacity retention of 82.2%) after 50 charge/discharge cycles at 1.0C. Meanwhile, the AlF₃-coated material delivered a discharge capacity of 222 mAh·g^-1 (with capacity retention of 96.5%) after 50 charge/discharge cycles at 1.0C.
- lithium ion batteries;AlF₃ coating;Li_1.2Mn_0.534Ni_0.133Co_0.133O₂;charge/discharge performance
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沈阳化工大学材料科学与工程学院沈阳 110142

Effects of AlF3 Coating on the Electrochemical Performance of Li1.2Mn0.534Ni0.133Co0.133O2 Cathode Materials

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通讯作者: 陈斌, bchen63@163.com

Effects of AlF₃ Coating on the Electrochemical Performance of Li_1.2Mn_0.534Ni_0.133Co_0.133O₂ Cathode Materials