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<p>Developing anode materials that simultaneously delivered high capacity, excellent rate capability, and long-term cycling stability remained a formidable challenge for sodium-ion batteries. In this work, a self-supporting composite anode (dual-carbon confinement architecture) was synthesized via a one-step glucose-assisted hydrothermal method. The dual-carbon-confinement architecture and partial substitution of selenium by sulfur effectively expanded the interlayer spacing and induced interfacial defects, created abundant active sites to facilitated reversible Na<sup>+</sup> intercalation/deintercalation. Benefiting from the synergistic effect of sulfur doping and the interconnected carbon network, the electrode delivered a reversible capacity of 500 mAh g<sup>−1</sup> at 0.1&#xa0;A g<sup>−1</sup> and maintained 300 mAh g<sup>−1</sup> after 600 cycles at 0.3&#xa0;A g<sup>−1</sup>, exhibiting excellent structural stability and electrochemical durability. This study offered a promising strategy for the rational design and scalable synthesis of high-performance composite anode materials for next-generation sodium-ion storage systems.</p> Graphical Abstract <p></p>

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Dual-carbon-constrained sulfur-doped MoSe2 composite as high-performance self-supporting anodes for sodium-ion batteries

  • 期刊论文

  • 发表日期：

    2026年1月14日

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  • Zhen Liu,
  • Zhiyang Gao,
  • Hui Li,
  • Xiaozhong Qi,
  • Handi Xu,
  • Bo Dou,
  • Meili Qi,
  • Ming Hu,
  • Jiaqi Pan

摘要

Developing anode materials that simultaneously delivered high capacity, excellent rate capability, and long-term cycling stability remained a formidable challenge for sodium-ion batteries. In this work, a self-supporting composite anode (dual-carbon confinement architecture) was synthesized via a one-step glucose-assisted hydrothermal method. The dual-carbon-confinement architecture and partial substitution of selenium by sulfur effectively expanded the interlayer spacing and induced interfacial defects, created abundant active sites to facilitated reversible Na+ intercalation/deintercalation. Benefiting from the synergistic effect of sulfur doping and the interconnected carbon network, the electrode delivered a reversible capacity of 500 mAh g−1 at 0.1 A g−1 and maintained 300 mAh g−1 after 600 cycles at 0.3 A g−1, exhibiting excellent structural stability and electrochemical durability. This study offered a promising strategy for the rational design and scalable synthesis of high-performance composite anode materials for next-generation sodium-ion storage systems.

Graphical Abstract