• 文献标题:   Shape-alterable and -recoverable graphene/polyurethane bi-layered composite film for supercapacitor electrode
  • 文献类型:   Article
  • 作  者:   TAI ZX, YAN XB, XUE QJ
  • 作者关键词:   graphene paper, shapememory polyurethane, composite, supercapacitor
  • 出版物名称:   JOURNAL OF POWER SOURCES
  • ISSN:   0378-7753 EI 1873-2755
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   27
  • DOI:   10.1016/j.jpowsour.2012.03.086
  • 出版年:   2012

▎ 摘  要

In this paper, a graphene/shape-memory polyurethane (PU) composite film, used for a supercapacitor electrode, is fabricated by a simple bonding method. In the composite, formerly prepared graphene paper is closely bonded on the surface of the PU slice, forming a bi-layered composite film. Based on the good flexibility of graphene paper and the outstanding shape holding capacity of PU phase, the resulting composite film can be changed into various shapes. Also, the composite film shows excellent shape recovery ability. The graphene/PU composite film used as the electrode maintains a satisfactory electrochemical capacitance of graphene material and there is no decay in the specific capacitance after long-cycle testing, making it attractive for novel supercapacitors with special shapes and shape-memory ability. (C) 2012 Elsevier B.V. All rights reserved.