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  • 文献标题:   Zn-Al layered double hydroxide growing on the substrate of graphene and polypyrrole composite as anode material for Zn-Ni secondary battery
  • 文献类型:   Article
  • 作　　者:   JIANG YN, YANG ZH, LIU LL, MENG JL, CUI F
  • 作者关键词:   composite material, energy storage conversion, zincnickel secondary battery, zincaluminum layered double hydroxide, electrochemical performance
  • 出版物名称:   MATERIALS LETTERS
  • ISSN:   0167-577X EI 1873-4979
  • 通讯作者地址:   Cent South Univ
  • 被引频次:   3
  • DOI:   10.1016/j.matlet.2019.126558
  • 出版年:   2019

▎ 摘　　要

In this work, the zinc-aluminum layered double hydroxide grown on the substrate of graphene and polypyrrole composite (Zn-Al LDHs/GP) was prepared by in-situ growth method, and evaluated as anode materials of Zn-Ni secondary batteries. The results indicate that the Zn-Al LDHs/GP electrode has the smallest peak potential difference (0.452 V), the lowest charge transfer resistance and the superior cycling performance. Compared to the normal Zn-Al LDHs, charge transfer resistance of Zn-Al LDHs/GP electrode is reduced by 6.65 Omega. Moreover, the specific capacity of the Zn-Al LDHs/GP electrode is still remained at 350.0 mAh g(-1) after 1000 cycles, with a retention rate of 91.5% and it exhibits better rate capability. (C) 2019 Elsevier B.V. All rights reserved.