• 文献标题:   Random oriented hexagonal nickel hydroxide nanoplates grown on graphene as binder free anode for lithium ion battery with high capacity
  • 文献类型:   Article
  • 作  者:   DU YJ, MA H, GUO MX, GAO T, LI HB
  • 作者关键词:   graphene, chemical vapor deposition, nanoplate, nanocomposite
  • 出版物名称:   CHEMICAL PHYSICS LETTERS
  • ISSN:   0009-2614 EI 1873-4448
  • 通讯作者地址:   Ningxia Univ
  • 被引频次:   4
  • DOI:   10.1016/j.cplett.2018.03.056
  • 出版年:   2018

▎ 摘  要

In this work, two-step method has been employed to prepare random oriented hexagonal hydroxide nanoplates on graphene (Ni(OH)(2)@G) as binder free anode for lithium ion battery (LIB) with high capacity. The morphology, microstructure, crystal phase and elemental bonding have been characterized. When evaluated as anode for LIB, the Ni(OH)(2)@G exhibited high initial discharge capacity of 1318 mAh/g at the current density of 50 mA/g. After 80 cycles, the capacity was maintained at 834 mAh/g, implying 63.3% remaining. Even the charge rate was increased to 2000 mA/g, an impressive capacity of 141 mAh/g can be obtained, indicating good rate capability. The superior LIB behavior of Ni(OH)(2)@G is ascribed to the excellent combination between Ni(OH)(2) nanoplates and graphene via both covalent chemical bonding and van der Waals interactions. (C) 2018 Elsevier B.V. All rights reserved.