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<p>The exceptional lithium-ion storage capacity of silicon positions it as a promising material for high-energy–density battery systems. Our research investigates the synthesis and evaluation of three silicon-based anode materials (PF-Si: Plasma-synthesized and Fine-sieved Silicon; PC-Si: Plasma-synthesized and Coarse-sieved Silicon; MC-Si: Mechanically Crushed Silicon) for lithium-ion battery applications. PF-Si fabricated through plasma-assisted synthesis under optimized conditions and sieved to a median particle size of 30–50&#xa0;nm, which demonstrates exceptional structural integrity and electrochemical behavior. Firstly, XRD and Raman analyses demonstrate that PF-Si exhibits superior crystallinity, which directly facilitates efficient lithium-ion intercalation and optimizes charge transfer kinetics. Secondly, nitrogen adsorption–desorption isotherms revealed a uniform mesoporous architecture with 3–5&#xa0;nm pores, the structural advantage that enables rapid electrolyte infiltration while minimizing ionic diffusion resistance. Most notably, electrochemical evaluations highlight the PF-Si anode’s exceptional performance. It delivers a specific capacity of 1107.5&#xa0;mAh/g at 0.1&#xa0;A/g, sustains 100.57% Coulombic efficiency over 75 cycles, and retains 68.69% capacity after 75 cycles. These findings collectively underscore the transformative potential of plasma-assisted morphological engineering in silicon anode design.</p> Graphical abstract <p></p>

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Optimized plasma-synthesized silicon anodes for high-performance lithium-ion batteries

  • 期刊论文

  • 发表日期：

    2025年9月17日

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  • Jing Peng,
  • Zheng Lin,
  • Yongyi Li,
  • Shuaibo Zeng,
  • LingZhu Yang,
  • Zixing He,
  • Junqi Wang,
  • Jingrun Gong,
  • Weiqi Chen,
  • Yanfeng Ni,
  • Chang Liu,
  • Zhixuan Chen,
  • Liangbin Xiong

摘要

The exceptional lithium-ion storage capacity of silicon positions it as a promising material for high-energy–density battery systems. Our research investigates the synthesis and evaluation of three silicon-based anode materials (PF-Si: Plasma-synthesized and Fine-sieved Silicon; PC-Si: Plasma-synthesized and Coarse-sieved Silicon; MC-Si: Mechanically Crushed Silicon) for lithium-ion battery applications. PF-Si fabricated through plasma-assisted synthesis under optimized conditions and sieved to a median particle size of 30–50 nm, which demonstrates exceptional structural integrity and electrochemical behavior. Firstly, XRD and Raman analyses demonstrate that PF-Si exhibits superior crystallinity, which directly facilitates efficient lithium-ion intercalation and optimizes charge transfer kinetics. Secondly, nitrogen adsorption–desorption isotherms revealed a uniform mesoporous architecture with 3–5 nm pores, the structural advantage that enables rapid electrolyte infiltration while minimizing ionic diffusion resistance. Most notably, electrochemical evaluations highlight the PF-Si anode’s exceptional performance. It delivers a specific capacity of 1107.5 mAh/g at 0.1 A/g, sustains 100.57% Coulombic efficiency over 75 cycles, and retains 68.69% capacity after 75 cycles. These findings collectively underscore the transformative potential of plasma-assisted morphological engineering in silicon anode design.

Graphical abstract