کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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191425 | 459721 | 2011 | 6 صفحه PDF | دانلود رایگان |

We report the synthesis and characterization of the hollow micrometer-sized (Mn0.5Ni0.4Co0.1)CO3 precursor, and one of its promising lithium-enriched phases. The chemical composition of the resulting lithiated final material was Li1.2(Mn0.5Ni0.4Co0.1)O2+y. Lithium half cells with cathodes comprised of these hollow particles as the active intercalation material showed a reversible capacity of 183 mAh/g when cycled between 2.0 V and 4.6 V. X-ray diffraction patterns and the electrochemical data of Li1.2(Mn0.5Ni0.4Co0.1)O2+y were consistent with the existence of the Li2MnO3-type integrated component that was activated during the initial charging of the cells. The results presented herein demonstrate a method to synthesize multicomponent, multiphase materials with hollow internal morphologies that can reversibly and stably be cycled with high gravimetric capacities as the active cathode material in lithium-ion batteries.
Journal: Electrochimica Acta - Volume 56, Issue 3, 1 January 2011, Pages 1426–1431