| 高性能自支撑不锈钢网@MoS2锂离子电池负极材料 |
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| 引用本文： | 岳红伟,陈淑君,卢帆,铁伟伟,朱聪旭.高性能自支撑不锈钢网@MoS2锂离子电池负极材料[J].复合材料学报,2020,37(6):1476-1482. |
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| 作者姓名： | 岳红伟 陈淑君 卢帆 铁伟伟 朱聪旭 |
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| 作者单位： | 1.许昌学院 新材料与能源学院 许昌 461000 |
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| 基金项目： | 国家自然科学基金(11804289；21703195)；河南省教育厅项目(18A430029)；河南省科技厅项目(182102210501) |
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| 摘 要： | 为了提高MoS2作为Li离子电池负极材料整体的导电性和稳定性，将纳米化的MoS2与其它导电性好的材料进行复合，通过水热法在导电基底不锈钢网(Stainless steel net, SS)上原位合成了一层MoS2纳米花，制备了无粘结剂的自支撑结构的SS@MoS2负极材料。纳米花状的MoS2和导电性优异的SS提高了电子和Li离子的扩散速率，同时改善了电极的反应动力学。当作为Li离子电池负极材料时，SS@MoS2电极表现出优异的储Li性能，特别是具有显著的大倍率充放电性能，即在1 000 mA/g的大电流密度下循环600次，比容量仍保持在862.1 mA·h/g。
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| 关 键 词： | Li离子电池 MoS2 自支撑 纳米花 负极 |
| 收稿时间： | 2019-11-27 |
High performance freestanding stainless steel net@MoS2 lithium-ion battery anode material |
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| Affiliation: | 1.College of Advanced Materials and Energy, Xuchang University, Xuchang 461000, China2.College of Chemistry and Chemical Engineering, Xuchang University, Xuchang 461000, China |
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| Abstract: | In order to improve the electrical conductivity and stability of the MoS2 electrode material of lithium-ion batteries (LIBs), the nano-MoS2 is compounded with other more conductive materials. MoS2 nanoflowers were prepared in situ grown on stainless steel net (SS) via a facile hydrothermal method, developing SS@MoS2 anode material with self-supporting structure without binder. The nanoflowers structure and the enhanced conductivity of MoS2 by SS can ameliorate the diffusion rate of both Li and electrons, as well as the electrode reaction kinetics. The SS@MoS2 electrodes display excellent lithium storage performance, especially remarkable high-rate capabilities in LIBs. And the specific capacity of 862.1 mA·h/g can still be obtained after 600 cycles at a high current density of 1 000 mA/g. |
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