• 文献标题:   ZnO-SnO2/graphene composites as high capacity anode materials for lithium ion batteries
  • 文献类型:   Article
  • 作  者:   GUO Q, CHEN SS, QIN X
  • 作者关键词:   composite material, electrical propertie, capacity retention, lithium ion batterie
  • 出版物名称:   MATERIALS LETTERS
  • ISSN:   0167-577X EI 1873-4979
  • 通讯作者地址:   Tianjin Univ
  • 被引频次:   18
  • DOI:   10.1016/j.matlet.2014.04.096
  • 出版年:   2014

▎ 摘  要

A simple hydrothermal method has been developed to synthesize zinc oxide (ZnO)-tin oxide (SnO2)/graphene composites as anode materials for lithium ion batteries. The ZnO-SnO2/graphene composite exhibits outstanding electrochemical performance such as high reversible capacities and good cycling stability. The composite delivers a high initial discharge specific capacity of 1287.6 mA h g(-1) with a reversible specific capacity of 1209.4 mA h g(-1) at the current density of 1 A g(-1). The charge capacity can remain about 1075.3 mA h g(-1) after 10 cycles. And even after 50 cycles, the charge capacity still remains at 800.9 mA h g(-1). Every component of the composite may make a contribution to the enhanced lithium storage capacity and cycling stability. (C) 2014 Elsevier B.V. All rights reserved.