• 文献标题:   Assembly of MnO2 nanowires@reduced graphene oxide hybrid with an interconnected structure for a high performance lithium ion battery
  • 文献类型:   Article
  • 作  者:   LI ZP, WANG JQ, WANG ZF, TANG YB, LEE CS, YANG SR
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   10
  • DOI:   10.1039/c4ra10338f
  • 出版年:   2014

▎ 摘  要

A facile strategy is developed to fabricate a MnO2 nanowire/reduced graphene oxide (rGO) hybrid with an interconnected structure. The morphology and microstructure of the hybrid is examined by field emission scanning electron microscopy, transmission electron microscopy, and X-ray diffraction analysis. The electrochemical properties of the MnO2 nanowire as an anode material for lithium-ion batteries are improved by this general strategy involving the addition of rGO sheets to the nanowires, producing a MnO2 nanowires@rGO hybrid (MGH). The rGO effectively buffers the volume changes during the lithiation/delithiation process, allowing the hybrid to retain its structure, without sacrificing its electrochemical performance. As a result, MGH delivers a highly reversible capacity of 1079 mA h g(-1) over 200 cycles at a current density of 500 mA g(-1), and excellent rate capability, thus such a reasonably stable hybrid exhibits great potential as an anode material for lithium ion batteries.