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Author:

Chen, Baixu (Chen, Baixu.) | Yang, Yubo (Yang, Yubo.) | Chen, Aibing (Chen, Aibing.) | Zhang, Xu (Zhang, Xu.) | Saddique, Jaffer (Saddique, Jaffer.) | Tang, Mingxue (Tang, Mingxue.) | Yu, Haijun (Yu, Haijun.)

Indexed by:

EI Scopus

Abstract:

The high-capacity phosphorus- (P-) based anode materials for sodium-ion batteries (NIBs) often face poor performance retentions owing to the low conductivity and large volume expansion. It is thus essential to buffer these problems by appropriately alloying with other elements such as tin (Sn) and constructing well-designed microstructures. Herein, a series of P-/Sn-based composites have been synthesized by the facile and low-cost one-step ball milling. Pair distribution function (PDF) has been employed as a hardcore quantitative technique to elucidate their structures combined with other techniques, suggesting the formation and ratios of Sn4P3 and Sn crystalline domains embedded inside an amorphous P/carbon matrix. The composite with the largest amount of Sn4P3 in the P/C matrix can deliver the most balanced electrochemical performance, with a capacity of 422.3 mA-h g−1 for 300 cycles at a current density of 1000 mA g−1. The reaction mechanism has been elucidated by 23Na and 31P solid-state nuclear magnetic resonance (NMR) investigations. The study sheds light on the rational design and concrete identification of P-/Sn-based amorphous-dominant composite materials for NIBs. Copyright © 2021 Baixu Chen et al.

Keyword:

Sodium-ion batteries Ball milling Nuclear magnetic resonance Phosphorus Metal ions Distribution functions Anodes

Author Community:

  • [ 1 ] [Chen, Baixu]Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Chen, Baixu]Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Chen, Baixu]College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang; 050018, China
  • [ 4 ] [Yang, Yubo]Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Yang, Yubo]Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 6 ] [Chen, Aibing]College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang; 050018, China
  • [ 7 ] [Zhang, Xu]Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 8 ] [Zhang, Xu]Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 9 ] [Saddique, Jaffer]Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 10 ] [Saddique, Jaffer]Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 11 ] [Saddique, Jaffer]College of Materials Science & Technology, Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, Nanjing University of Aeronautics & Astronautics, Nanjing; 210016, China
  • [ 12 ] [Tang, Mingxue]Center for High Pressure Science & Technology Advanced Research, Beijing; 100094, China
  • [ 13 ] [Yu, Haijun]Institute of Advanced Battery Materials and Devices, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 14 ] [Yu, Haijun]Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing; 100124, China

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Source :

Energy Material Advances

Year: 2021

Volume: 2021

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 1

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