Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (8): 1866.doi: 10.7503/cjcu20200012

• Physical Chemistry • Previous Articles     Next Articles

High Performance Lithium-sulfur Battery with Hydroxyapatite Nanowire Composite Interlayer

LI Rui, SUN Xiaogang, ZOU Jingyi, HE Qiang   

  1. School of Mechantronics Engineering, Nanchang University, Nanchang 330031, China
  • Received:2020-01-09 Online:2020-08-10 Published:2020-07-31
  • Supported by:
    Supported by the Fund of Science & Technology Transformation Program for Universities in Jiangxi Province, China(No.KJLD13006).

Abstract: Hydroxyapatite[Ca5(PO4)3(OH)] nanowires were prepared by hydrothermal synthesis, and were combined as a polysulfide absorbent with multi-walled carbon nanotubes(MWCNTs) interlayer to form a hierarchically cross-linked hydroxyphosphate nanowire composite(HN/CNT) interlayer. This layer was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy(FTIR)and ultraviolet-visible spectroscopy(UV-Vis). The results of electrochemical tests show that the Li-S battery with HN/CNT interlayer has a specific discharge capacity of 871 mA·h/g after 200 cycles at 1C, and the fading rate is only 0.031% per cycle.

Key words: Li-S battery, Shuttle effect, Hydroxyapatite, Carbon nanotube, Interlayer

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