Facile synthesis of Sn/MoS2/C composite as an anode material for lithium-ion batteries with outstanding performance

Facile synthesis of Sn/MoS2/C composite as an anode material for lithium-ion batteries with outstanding performance
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轻松合成Sn/MoS2/C复合材料作为性能优异的锂离子电池负极材料

DOI:
10.1039/c5nj02368h
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发表时间:
2016-02
影响因子:
3.3
通讯作者:
Li Qingyu
Li Qingyu
中科院分区:
化学3区
文献类型:
--
作者:
Wang Hongqiang;Pan Qichang;Chen Jing;Zan Yahui;Huang Youguo;Yang Guanhua;Yan Zhixiong;Li Qingyu

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通过简单的水热法和Ar气氛下退火制备了一种新型Sn/MoS 2/C复合材料。层状结构MoS 2和非晶碳的合成可以有效地抑制Sn在充放电过程中的体积变化。Sn/MoS 2/C复合材料作为锂离子电池的负极材料进行了评估,并在100次循环后在500 mA g-1下表现出707 mA h g-1的稳定和高可逆容量。层状结构的MoS 2纳米片和无定形碳包覆层的存在,缓解了Sn的体积变化,增强了复合材料中电子和Li离子的扩散传输,从而显著提高了复合材料的Li离子储存和稳定性能。
A facile strategy for preparing a novel Sn/MoS2/C composite has been developed via a simple hydrothermal route and then annealing in an Ar atmosphere. The synthesis of layer-structured MoS2 and amorphous carbon can effectively restrict the volume change of Sn during the charge and discharge process. The Sn/MoS2/C composite was evaluated as an anode material for lithium-ion batteries, and exhibits a stable and high reversible capacity of 707 mA h g−1 at 500 mA g−1 after 100 cycles. The significantly improved Li ion storage and stable capability are attributed to the layer-structured MoS2 nanosheets and the amorphous carbon coated layer, which alleviate the large volume changes of Sn and enhance the electron and Li ion diffusion transport in the composite.
石墨烯包裹的 SnO2 中空纳米球的坚固复合材料,作为锂离子电池的高容量阳极材料
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