Nano-structured red phosphorus/porous carbon as a superior anode for lithium and sodium-ion batteries

作     者：徐江 丁建宁 朱文俊 周小双 葛善海 袁宁一 

作者机构：Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology Jiangsu Key Laboratory for Solar Cell Materials and Technology Changzhou University 

基　　金：financially supported by the National Natural Science Foundation of China (91648109) the National Key Research and Development Program of China (2017YFB0307001) the Priority Academic Program Development of Jiangsu Higher Education Institutions 333 project of Jiangsu Province 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2018年第61卷第3期

页      码：371-381页

摘      要：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.

主 题 词：ion battery red phosphorus/porous carbon compo-site nanostructure electrochemical performance 

学科分类：0808[工学-自动化类] 07[理学] 070205[070205] 08[工学] 080501[080501] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s40843-017-9152-9

馆 藏 号：203282700...