• 文献标题:   Eco-friendly preparation of large-sized graphene via short-circuit discharge of lithium primary battery
  • 文献类型:   Article
  • 作  者:   KANG SH, YU T, LIU TT, GUAN SY
  • 作者关键词:   electrochemical preparation, graphite, graphite intercalation compound, graphene
  • 出版物名称:   JOURNAL OF COLLOID INTERFACE SCIENCE
  • ISSN:   0021-9797 EI 1095-7103
  • 通讯作者地址:   East China Univ Sci Technol
  • 被引频次:   2
  • DOI:   10.1016/j.jcis.2017.09.116
  • 出版年:   2018

▎ 摘  要

We proposed a large-sized graphene preparation method by short-circuit discharge of the lithium graphite primary battery for the first time. LiCX is obtained through lithium ions intercalation into graphite cathode in the above primary battery. Graphene was acquired by chemical reaction between LiCX and stripper agents with dispersion under sonication conditions. The gained graphene is characterized by Raman spectrum, X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Atomic force microscope (AFM) and Scanning electron microscopy (SEM). The results indicate that the as-prepared graphene has a large size and few defects, and it is monolayer or less than three layers. The quality of graphene is significant improved compared to the reported electrochemical methods. The yield of graphene can reach 8.76% when the ratio of the H2O and NMP is 3:7. This method provides a potential solution for the recycling of waste lithium ion batteries. (C) 2017 Elsevier Inc. All rights reserved.