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Influence of structure and atom sites on Sn-based anode materials for lithium ion batteries： a first-principle study

ISSN号：1000-873X
期刊名称：《中国翻译》
时间：0
分类：TM912[电气工程—电力电子与电力传动] TB33[一般工业技术—材料科学与工程]
作者机构：[1]Laboratory of Quantum Engineering and Quantum Materials,School of Physics and Telecommunication Engineering, SouthChina Normal University, Guangzhou 510006, China, [2]Engineering Research Center of Materials and Technology forElectrochemical Energy Storage (Ministry of Education),Guangzhou 510006, China, [3]BTR New Energy Materials Co. LTD, Shenzhen 518106, China
相关基金：This work was financially supported by the National Natural Science Foundation of China （51201066, 51171065）, Natural Science Foundation of Guangdong Province （S2012020010937, 10351063101000001）, Foundation for Distinguished Young Talents in Higher Education of Guangdong （2012LYM_0048） and the Scientific Research Foundation of Graduate School of South China Normal University （2013kyjj038）.

作者： Zhaowen Huang[1], Shejun Hu[1,2], Xianhua Hou[1], Qiang Ru[1], Lingzhi Zhao[3]

关键词：复合材料, 锂离子电池, 合成样品, 阳极材料, 凝胶法, 水热法, 溶胶, 循环稳定性, Lithium ion battery , Anode material, Sn-Co/C composite, Sol-gel

中文摘要：

作为在锂离子电池的阳极材料， Sn-Co/C 合成电极材料成功地被综合了由热水并且大音阶的第五音胶化方法分别地。结果的 composites 主要由基于 Sn 的氧化物，纳米 Sn 公司合金和碳组成。碳和公司，充当缓冲区材料，能在分泌物费用过程期间使适应活跃 Sn 的大卷变化，因此改进骑车的稳定性。尽管控告/解除曲线揭示了优秀周期，为样品的性能由两个方法综合了，大音阶的第五音胶化获得的 composites 在碳矩阵上显示出 nanoparticles 的更好的分散效果并且与~拥有了更多改进稳定的能力 624.9 ? mAh ? g <啜class=“ a-plus-plus ”>在由热水的方法的 100 个周期和那上的 1 仅仅展出了~ 299.3 ? mAh ? g <啜class=“ a-plus-plus ”> 1 。因此，大音阶的第五音胶化合成方法获得的 Sn-Co/C composites 能是 Li 离子存储电池的阳极材料的一个完美的候选人。

英文摘要：

As an anode material in lithium ion battery, the Sn-Co/C composite electrode materials have been successfully synthesized by hydrothermal and solgel methods, respectively. The resultant composites were mainly composed of Snbased oxides, nanometer Sn-Co alloy and carbon. Carbon and Co, acting as buffer materials, can accommodate to the large volume change of active Sn during the discharge-charge process, thus improving the cycling stability. Although charge/discharge curves revealed the excellent cycle performance for samples synthesized by both methods, composites obtained by the sol-gel showed a better dispersion effect of nanoparticles on the carbon matrix and possessed much more improved stable capacity with 624.9 mAh g-1 over 100 cycles and that by hydrothermal method only exhibited ～299.3 mAh g-1. Therefore, the Sn-Co/C composites obtained by solgel synthesis method could be a perfect candidate for anode material of Liion storage battery.

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