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Facile Synthesis of Hollow CuO/MWCNT Composites by Infiltration-Reduction-Oxidation Method as High Performance Lithium-ion Battery Anodes

  • Zheng, Gang (Gotion High-Tech Co. Ltd.) ;
  • Li, Zhiang (Gotion High-Tech Co. Ltd.) ;
  • Lu, Jinhua (Gotion High-Tech Co. Ltd.) ;
  • Zhang, Jinhua (Gotion High-Tech Co. Ltd.) ;
  • Chen, Long (Gotion High-Tech Co. Ltd.) ;
  • Yang, Maoping (Gotion High-Tech Co. Ltd.)
  • Received : 2020.05.14
  • Accepted : 2020.07.19
  • Published : 2020.11.30

Abstract

Hollow copper oxide/multi-walled carbon nanotubes (CuO/MWCNT) composites were fabricated via an optimized infiltration-reduction-oxidation method, which is more facile and easy to control. The crystalline structure and morphology were characterized by X-ray diffraction (XRD), and transmission electron microscopy (TEM). The as-prepared CuO/MWCNT composites deliver an initial capacity of 612.3 mAh·g-1 and with 80% capacity retention (488.2 mAh·g-1) after 100 cycles at a current rate of 0.2 A·g-1. The enhanced electrochemical performance is ascribed to the better electrical conductivity of MWCNT, the hollow structure of CuO particles, and the flexible structure of the CuO/MWCNT composites.