• 文献标题:   Reduced graphene-oxide/highly ordered mesoporous SiOx hybrid material as an anode material for lithium ion batteries
  • 文献类型:   Article
  • 作  者:   LIU D, CHEN CR, HU YY, WU J, ZHENG D, XIE ZZ, WANG GW, QU DY, LI JS, QU DY
  • 作者关键词:   silicon oxide, reduced graphene oxide, mesoporous structure, hybrid material, anode material for lib
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Wuhan Univ Technol
  • 被引频次:   10
  • DOI:   10.1016/j.electacta.2018.04.030
  • 出版年:   2018

▎ 摘  要

rGO wrapped SiOx with ordered meso-porous structure material is fabricated via a facile route. This meso-porous SiOx/rGO composite, used as anode in LIBs, exhibits a reversible capacity of 580 mAh g(-1) under the applied current density of 100 mAg(-1) up to 200 cycles. And it still can deliver a reversible capacity of 120 mAh g(-1) even at 10,000 mA g(-1) rate. The high cyclic stability and superior rate performance is attributed to the graphene layer as well as the inert products formed in the reduction of SiOx, which can buffer the volume expansion elastically, thus preserve the integrity of the electrode. Moreover, the ordered meso-porous structure can provide high specific surface area, sufficient void space to shorten the pathway of Li ions, improve the electrolyte penetration and enhanced the electrochemical Li ion storage. (c) 2018 Elsevier Ltd. All rights reserved.