New Insights into the High-Performance Black Phosphorus Anode for Lithium-Ion Batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Minsi Li
  • Weihan Li
  • Yongfeng Hu
  • Andrey A. Yakovenko
  • Jing Luo
  • William M. Holden
  • Mohsen Shakouri
  • Qunfeng Xiao
  • Xuejie Gao
  • Feipeng Zhao
  • Jianwen Liang
  • Renfei Feng
  • Ruying Li
  • Gerald T. Seidler
  • Frank Brandys
  • Ranjith Divigalpitiya
  • Tsun-Kong Sham
  • Xueliang Sun

Detail(s)

Original languageEnglish
Article number2101259
Journal / PublicationAdvanced Materials
Volume33
Issue number35
Online published22 Jul 2021
Publication statusPublished - 2 Sep 2021
Externally publishedYes

Abstract

Black phosphorus (BP) is a promising anode material in lithium-ion batteries (LIBs) owing to its high electrical conductivity and capacity. However, the huge volume change of BP during cycling induces rapid capacity fading. In addition, the unclear electrochemical mechanism of BP hinders the development of rational designs and preparation of high-performance BP-based anodes. Here, a high-performance nanostructured BP–graphite–carbon nanotubes composite (BP/G/CNTs) synthesized using ball-milling method is reported. The BP/G/CNTs anode delivers a high initial capacity of 1375 mA h g−1 at 0.15 A g−1 and maintains 1031.7 mA h g−1 after 450 cycles. Excellent high-rate performance is demonstrated with a capacity of 508.1 mA h g−1 after 3000 cycles at 2 A g−1. Moreover, for the first time, direct evidence is provided experimentally to present the electrochemical mechanism of BP anodes with three-step lithiation and delithiation using ex situ X-ray diffraction (XRD), ex situ X-ray absorption spectroscopy (XAS), ex situ X-ray emission spectroscopy, operando XRD, and operando XAS, which reveal the formation of Li3P7, LiP, and Li3P. Furthermore, the study indicates an open-circuit relaxation effect of the electrode with ex situ and operando XAS analyses.

Research Area(s)

  • black phosphorus anodes, lithium-ion batteries, mechanism study, operando analyses, X-ray absorption spectroscopy (XAS), X-ray diffraction (XRD), X-ray emission spectroscopy (XES)

Citation Format(s)

New Insights into the High-Performance Black Phosphorus Anode for Lithium-Ion Batteries. / Li, Minsi; Li, Weihan; Hu, Yongfeng; Yakovenko, Andrey A.; Ren, Yang; Luo, Jing; Holden, William M.; Shakouri, Mohsen; Xiao, Qunfeng; Gao, Xuejie; Zhao, Feipeng; Liang, Jianwen; Feng, Renfei; Li, Ruying; Seidler, Gerald T.; Brandys, Frank; Divigalpitiya, Ranjith; Sham, Tsun-Kong; Sun, Xueliang.

In: Advanced Materials, Vol. 33, No. 35, 2101259, 02.09.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review