期刊
JOURNAL OF POWER SOURCES
卷 194, 期 2, 页码 1089-1093出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2009.06.043
关键词
Zinc manganate; Anode; Lithium-ion batteries; Solvothermal; Flower-like superstructure
资金
- National Basic Research Program of China [2007CB613301]
- National Science Foundation of China [20777026]
- Program for New Century Excellent Talents in University [NCET-07-0352]
In this communication, flower-like tetragonal ZnMn2O4 superstructures are synthesized by a facile low temperature solvothermal process. Characterizations show that these ZnMn2O4 superstructures are well crystallized and of high purity. The product exhibits an initial electrochemical capacity of 763 mAh g(-1) and retains stable capacity of 626 mAh g(-1) after 50 cycles. Its stable capacity is significantly higher than that of nanocrystalline ZnMn2O4 synthesized by a polymer-pyrolysis method. It is found that the higher capacity retention can be attributed to three-dimensional superstructural nature of the as-prepared flower-like ZnMn2O4 material. This study suggests that the solvothermally synthesized flower-like ZnMn2O4 is a promising anode material for lithium-ion batteries. (C) 2009 Elsevier B.V. All rights reserved.
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