Mechanistic Origin of the High Performance of Yolk@Shell Bi 2 S 3 @N-Doped Carbon Nanowire Electrodes

Longze Zhao, Hong Hui Wu, Chenghao Yang, Qiaobao Zhang, Guiming Zhong, Zhiming Zheng, Huixin Chen, Jinming Wang, Kai He, Baolin Wang, Ting Zhu, Xiao Cheng Zeng, Meilin Liu, Ming Sheng Wang

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

High-performance lithium-ion batteries are commonly built with heterogeneous composite electrodes that combine multiple active components for serving various electrochemical and structural functions. Engineering these heterogeneous composite electrodes toward drastically improved battery performance is hinged on a fundamental understanding of the mechanisms of multiple active components and their synergy or trade-off effects. Herein, we report a rational design, fabrication, and understanding of yolk@shell Bi 2 S 3 @N-doped mesoporous carbon (C) composite anode, consisting of a Bi 2 S 3 nanowire (NW) core within a hollow space surrounded by a thin shell of N-doped mesoporous C. This composite anode exhibits desirable rate performance and long cycle stability (700 cycles, 501 mAhg -1 at 1.0 Ag -1 , 85% capacity retention). By in situ transmission electron microscopy (TEM), X-ray diffraction, and NMR experiments and computational modeling, we elucidate the dominant mechanisms of the phase transformation, structural evolution, and lithiation kinetics of the Bi 2 S 3 NWs anode. Our combined in situ TEM experiments and finite element simulations reveal that the hollow space between the Bi 2 S 3 NWs core and carbon shell can effectively accommodate the lithiation-induced expansion of Bi 2 S 3 NWs without cracking C shells. This work demonstrates an effective strategy of engineering the yolk@shell-architectured anodes and also sheds light onto harnessing the complex multistep reactions in metal sulfides to enable high-performance lithium-ion batteries.

Original languageEnglish (US)
Pages (from-to)12597-12611
Number of pages15
JournalACS Nano
Volume12
Issue number12
DOIs
StatePublished - Dec 26 2018

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Nanowires
Anodes
nanowires
Carbon
electric batteries
Electrodes
anodes
composite materials
electrodes
carbon
Composite materials
shell anodes
hollow
lithium
engineering
Transmission electron microscopy
transmission electron microscopy
cycles
Sulfides
phase transformations

Keywords

  • in situ experiments
  • lithiation mechanism
  • lithium-ion battery
  • multiple computational modeling
  • yolk@shell composite anode

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Zhao, L., Wu, H. H., Yang, C., Zhang, Q., Zhong, G., Zheng, Z., ... Wang, M. S. (2018). Mechanistic Origin of the High Performance of Yolk@Shell Bi 2 S 3 @N-Doped Carbon Nanowire Electrodes ACS Nano, 12(12), 12597-12611. https://doi.org/10.1021/acsnano.8b07319

Mechanistic Origin of the High Performance of Yolk@Shell Bi 2 S 3 @N-Doped Carbon Nanowire Electrodes . / Zhao, Longze; Wu, Hong Hui; Yang, Chenghao; Zhang, Qiaobao; Zhong, Guiming; Zheng, Zhiming; Chen, Huixin; Wang, Jinming; He, Kai; Wang, Baolin; Zhu, Ting; Zeng, Xiao Cheng; Liu, Meilin; Wang, Ming Sheng.

In: ACS Nano, Vol. 12, No. 12, 26.12.2018, p. 12597-12611.

Research output: Contribution to journalArticle

Zhao, L, Wu, HH, Yang, C, Zhang, Q, Zhong, G, Zheng, Z, Chen, H, Wang, J, He, K, Wang, B, Zhu, T, Zeng, XC, Liu, M & Wang, MS 2018, ' Mechanistic Origin of the High Performance of Yolk@Shell Bi 2 S 3 @N-Doped Carbon Nanowire Electrodes ', ACS Nano, vol. 12, no. 12, pp. 12597-12611. https://doi.org/10.1021/acsnano.8b07319
Zhao, Longze ; Wu, Hong Hui ; Yang, Chenghao ; Zhang, Qiaobao ; Zhong, Guiming ; Zheng, Zhiming ; Chen, Huixin ; Wang, Jinming ; He, Kai ; Wang, Baolin ; Zhu, Ting ; Zeng, Xiao Cheng ; Liu, Meilin ; Wang, Ming Sheng. / Mechanistic Origin of the High Performance of Yolk@Shell Bi 2 S 3 @N-Doped Carbon Nanowire Electrodes In: ACS Nano. 2018 ; Vol. 12, No. 12. pp. 12597-12611.
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