Synthesis and electrochemical properties of LiNi0.9-xCo0.1SnxO2 as cathode materials for lithium secondary batteries |
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Authors: | Xiaoling Ma Chiwei Wang Jinguo Cheng Jutang Sun |
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Institution: | (1) Department of Chemistry, Wuhan University, Wuhan, 430072, People’s Republic of China |
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Abstract: | LiNi0.9-x
Co0.1Sn
x
O2 (x = 0.00, 0.02, and 0.03) were synthesized via the rheological phase reaction method and characterized by X-ray diffraction
(XRD), scanning electron microscopy (SEM) and electrochemical tests. The sample of LiNi0.9-x
Co0.1Sn
x
O2 (x = 0.02) not only shows good cycle performance but also exhibits an excellent discharge capacity of 188 mAh/g in the first
cycle at a current density of 100 mA/g in the voltage range of 3.0–4.3 V. The tin doping results in reducing the resistance
and increasing conductivity of LiNi0.9-x
Co0.1Sn
x
O2. This composite oxide is promising as cathode material for lithium-ion battery. |
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Keywords: | Cathode materials Lithium-ion batteries LiNi0 9Co0 1O2 Tin doping |
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