Tucked flower-like SnS2/Co3O4 composite for high-performance anode material in lithium-ion batteries
Tucked flower-like SnS2/Co3O4 composite for high-performance anode material in lithium-ion batteries
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高性能锂离子电池负极材料的花状SnS2/Co3O4复合材料
DOI:
10.1016/j.electacta.2015.12.127
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发表时间:
2016-02
期刊:
影响因子:
--
通讯作者:
R.H. Zeng
中科院分区:
文献类型:
--
作者:
X.X. Pan;S.L. Chou;L.Z. Zhao;R.H. Zeng
A novel tucked flower-like SnS2/Co3O4structure is synthesized by growing Co3O4in the gaps between petals of SnS2microflowers through a facile solution method. In our strategy, the petals of the flowers are curled inwards due to the swelling force resulting from growth of Co3O4, resulting in the encapsulation of Co3O4with the SnS2petals forming a coating structure. The SnS2/Co3O4composite displays greatly improved performance in comparison with pure SnS2. After 100 cycles, an outstanding reversible capacity of ∼715 mAh g−1with negligible capacity fading is achieved at current density of 100 mA g−1for SnS2/Co3O4. What is more, the SnS2/Co3O4exhibits excellent rate capability, and a reversible capacity of up to ∼530 mAh g−1is obtained, even at a current density as high as 1000 mA g−1. The morphology of tucked flower-like petals and the introduction of the secondary structure of Co3O4are suggested to be responsible for the improved lithium storage capacity of the composite. The as-prepared SnS2/Co3O4shows promise as a potential anode material for Li-ion batteries due to its simple synthesis method and large capacity.
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影响因子:
15.1
作者:
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通讯作者:
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影响因子:
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作者:
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影响因子:
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影响因子:
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作者:
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通讯作者:
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