Electrochemical performance of LiMn2O4 microcubes prepared by a self-templating route |
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Authors: | Jian Xie Cheng-Yue Sun Tie-Jun Zhu Gao-Shao Cao Xin-Bing Zhao Shi-Chao Zhang |
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Institution: | 1. State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China 2. Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Hangzhou, China 3. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
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Abstract: | LiMn2O4 microcubes with a size of 10–15 μm have been synthesized by a facile self-templating route starting from cubic MnCO3. The LiMn2O4 microcubes exhibit a hierarchical structure, where the cubes are stacked from parallel plates with a thickness of 200 nm, where each plate is composed of interconnected nanoparticles with a size of around 200 nm. The cubic LiMn2O4 shows excellent rate capability and high-rate cycling stability. At 10 C, it can yield a discharge capacity of 108 mAh g?1. A discharge capacity of 88 mAh g?1 can be retained after 100 cycles at 10 C. The excellent electrochemical performance makes it a promising cathode for high-power Li-ion batteries. |
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