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<p>Designing an anode material that outperforms commercial graphite in electrochemical performance remains a formidable yet intriguing pursuit. Transition metal oxides (TMOs) have emerged as promising candidates in this pursuit. A key challenge lies in overcoming the poor conductivity and limited reversibility that hinder their practical application. Herein, we propose a thermally regulated <i>in-situ</i> phosphidation strategy to construct a bifunctional NiP<sub>2</sub>-NiMoO<sub>4</sub>/NF-500 nanorod array anchored on nickel foam (NF) as an advanced lithium-ion battery (LIB) anode. Thermal treatment induces a highly ordered NiMoO<sub>4</sub> crystalline phase, enabling more uniform and stable subsequent <i>in-situ</i> phosphidation. NiMoO<sub>4</sub> nanorods confer structural robustness and offer multidirectional open channels with ample voids, enabling rapid and reversible Li<sup>+</sup> insertion/extraction. Embedded NiP<sub>2</sub> delivers high electrochemical activity and markedly improves electronic conductivity. The integration with NF eliminates the need for inactive carbon additives to achieve sufficient conductivity and structural integrity. The optimized NiP<sub>2</sub>-NiMoO<sub>4</sub>/NF-500 electrode exhibits exceptional lithium storage capability, delivering a reversible specific capacity of 1261 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> and remarkable cycling stability. This work provides a promising avenue for accelerating the practical deployment of high-energy-density LIBs employing oxide-based anodes.</p>

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Thermally regulated phosphide-based hybrid anodes for high-performance lithium-ion batteries

  • 期刊论文

  • 发表日期：

    2026年5月26日

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  • Shanshan Xiao,
  • Yong Chen,
  • Xianggang Zhou,
  • Pengtao Sun,
  • Yingqi Li,
  • Rui-Qi Yao,
  • Nan Gao,
  • Liyan Wang,
  • Xing-You Lang,
  • Yang-Guang Li,
  • Qing Jiang

摘要

Designing an anode material that outperforms commercial graphite in electrochemical performance remains a formidable yet intriguing pursuit. Transition metal oxides (TMOs) have emerged as promising candidates in this pursuit. A key challenge lies in overcoming the poor conductivity and limited reversibility that hinder their practical application. Herein, we propose a thermally regulated in-situ phosphidation strategy to construct a bifunctional NiP2-NiMoO4/NF-500 nanorod array anchored on nickel foam (NF) as an advanced lithium-ion battery (LIB) anode. Thermal treatment induces a highly ordered NiMoO4 crystalline phase, enabling more uniform and stable subsequent in-situ phosphidation. NiMoO4 nanorods confer structural robustness and offer multidirectional open channels with ample voids, enabling rapid and reversible Li+ insertion/extraction. Embedded NiP2 delivers high electrochemical activity and markedly improves electronic conductivity. The integration with NF eliminates the need for inactive carbon additives to achieve sufficient conductivity and structural integrity. The optimized NiP2-NiMoO4/NF-500 electrode exhibits exceptional lithium storage capability, delivering a reversible specific capacity of 1261 mAh g−1 at 0.1 A g−1 and remarkable cycling stability. This work provides a promising avenue for accelerating the practical deployment of high-energy-density LIBs employing oxide-based anodes.