Facile Preparation of Porous Mn2SnO4/Sn/C Composite Cubes as High Performance Anode Material for Lithium-Ion Batteries
In recent years, Sn-based materials have been explored as potential anodes for high energy lithium-ion batteries. However, their severe volume expansion in lithiation procedure could lead to poor cycling property and inferior rate capability, which limit the applications of Sn-based materials in lit...
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Published in | Journal of physical chemistry. C Vol. 120; no. 7; pp. 3669 - 3676 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
American Chemical Society
25.02.2016
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Online Access | Get full text |
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Summary: | In recent years, Sn-based materials have been explored as potential anodes for high energy lithium-ion batteries. However, their severe volume expansion in lithiation procedure could lead to poor cycling property and inferior rate capability, which limit the applications of Sn-based materials in lithium-ion batteries. In this study, we have designed and prepared uniform Mn2SnO4/Sn/carbon composite cubic particles with a porous structure as anode material through facile hydrothermal method and subsequent annealing process. The results demonstrate that the well-crystallized three-dimensional (3D) cubes with rounded corners consist of nanoparticles uniformly arranged in carbon matrix. The as-made Mn2SnO4/Sn/C anode exhibits excellent electrochemical performance and delivers 908 mA h g–1 of discharge capacity up to the 100th cycle at a current density of 500 mA g–1, with a Coulombic efficiency above 97%. The remarkable performance can be attributed to the formation of unique conductive frameworks and the porous structure. |
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ISSN: | 1932-7447 1932-7455 |
DOI: | 10.1021/acs.jpcc.5b11935 |