红磷/多孔碳纳米复合材料用于高性能锂离子和钠离子电池负极

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Bibliographic Details
Published in中国科学：材料科学（英文版） Vol. 61; no. 3; pp. 371 - 381
Main Author 徐江;丁建宁;朱文俊;周小双;葛善海;袁宁一
Format Journal Article
LanguageEnglish
Published 2018
Subjects
纳米复合材料;电化学性能;钠离子电池;锂离子电池;电池负极;多孔碳;红磷;碳纳米管材料
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ISSN2095-8226
2199-4501

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Bibliography:Jiang Xu, Jianning Ding, Wenjun Zhu, Xiaoshuang Zhou, Shanhai Ge and Ningyi Yuan （Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Iiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou University, Changzhou 213164, China）
ion battery, red phosphorus/porous carbon compo-site, nanostructure, electrochemical performance
10-1236/TB
To enhance electrochemical performance of li- thium or sodium-ion batteries （LIBs or NIBs）, active materials are usually filled in porous conductive particles to produce anode composites. However, it is still challenging to achieve high performance anode composites with high specific capa- city, excellent rate performance, high initial Coulombic effi- ciency （ICE） and long cycle life. Based on these requirements, we design and fabricate activated carbon-coated carbon na- notubes （AC@CNT） with hierarchical structures containing micro- and meso-pores. A new structure of phosphorus/car- bon composite （P@AC@CNT） is prepared by confining red P in porous carbon through a vaporization-condensation-con- version method. The micro-pores are filled with P, while the meso-pores remain unoccupied, and the pore openings on the particle surface are sealed by P. Due to the unique structure of P@AC@CNT, it displays a high specific capacity of 1674 mA h g-i at 0.2 C, ultrahigh ICE of 92.2%, excellent rate per- formance of 1116 mA h g-i at 6 C, and significantly enhanced cycle stability for LIBs. The application of P@AC@CNT in NIBs is further explored. This method for the fabrication of the special composites with improved electrochemical per- formance can be extended to other energy storage applica- tions.
ISSN:2095-8226
2199-4501