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首页> 外文期刊>Energy >PVD synthesis of binder-free silicon and carbon coated 3D α-Fe_2O_3 nanorods hybrid films as high-capacity and long-life anode for flexible lithium-ion batteries
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PVD synthesis of binder-free silicon and carbon coated 3D α-Fe_2O_3 nanorods hybrid films as high-capacity and long-life anode for flexible lithium-ion batteries

机译：PVD合成无粘结剂硅和碳包覆的3Dα-Fe_2O_3纳米棒混合膜，作为柔性锂离子电池的高容量和长寿命阳极

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摘要

Flexible lithium-ion batteries are being given great attention as up-and-coming power source for the development of flexible and wearable electronic devices. In this work, a carbon and silicon coated 3D ccFe203 nanorod arrays on carbon cloth composite was firstly designed by facile hydrothermal method and physical vapor deposition process. The as-prepared composite can be directly applied as flexible anode for Li-ion batteries without adding any binder and conducting materials. The electrochemical results show that the composite exhibits outstanding electrochemical lithium storage properties with high initial Coulombic Efficiency of 76% at 100 mA g(-1), current density and a superior cycling performance that could maintain about 910 mAh.g(-1) after 500 cycles at a 500 inA g(-1) current density, which is two to three times of commercial graphite anodes. This study offers a promising route to greatly enhance the electrochemical properties of metal oxides and provides suggestive insights for developing highperformance electrode materials for flexible energy storage devices. (C) 2018 Elsevier Ltd. All rights reserved.
机译：柔性锂离子电池作为柔性和可穿戴电子设备的发展中的新兴动力正受到高度重视。在这项工作中，首先通过简便的水热法和物理气相沉积工艺设计了在碳布复合材料上的碳和硅包覆的3D ccFe203纳米棒阵列。所制备的复合材料可以直接用作锂离子电池的柔性阳极，而无需添加任何粘合剂和导电材料。电化学结果表明，该复合材料表现出优异的电化学锂存储性能，在100 mA g（-1）时的初始库仑效率高达76％，电流密度高，循环性能出色，在使用后可保持约910 mAh.g（-1）。在500 inA g（-1）的电流密度下进行500次循环，这是商用石墨阳极的2至3倍。这项研究为大大增强金属氧化物的电化学性能提供了一条有希望的途径，并为开发用于柔性能量存储设备的高性能电极材料提供了有益的见解。 （C）2018 Elsevier Ltd.保留所有权利。

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