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<p>To address the issue of volume expansion and electrode pulverization of transition metal oxide anodes in lithium-ion batteries during charge–discharge cycles, this study successfully fabricated blade- and sphere-shaped CuO/rGO composite anodes via a solid-phase calcination method, significantly enhancing the stability of the anodes. The sphere-shaped composite exhibits superior electrochemical performance, achieving an initial reversible capacity of 419&#xa0;mAh&#xa0;g<sup>−1</sup> and maintaining 186&#xa0;mAh&#xa0;g<sup>−1</sup> after 100 cycles at 0.2&#xa0;A&#xa0;g<sup>−1</sup>. The incorporation of graphene enhances anodic stability by reducing volume changes and facilitating electron transport. The results highlight the importance of morphology control in improving lithium storage performance and provide insights for designing advanced anode materials.</p>

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Enhanced lithium-ion battery performance with CuO/rGO anode composites

  • 期刊论文

  • 发表日期：

    2025年8月3日

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  • Yong Li,
  • Yufeng Liu,
  • Haidong Yu,
  • Ziliang Liu,
  • Fang Xu

摘要

To address the issue of volume expansion and electrode pulverization of transition metal oxide anodes in lithium-ion batteries during charge–discharge cycles, this study successfully fabricated blade- and sphere-shaped CuO/rGO composite anodes via a solid-phase calcination method, significantly enhancing the stability of the anodes. The sphere-shaped composite exhibits superior electrochemical performance, achieving an initial reversible capacity of 419 mAh g−1 and maintaining 186 mAh g−1 after 100 cycles at 0.2 A g−1. The incorporation of graphene enhances anodic stability by reducing volume changes and facilitating electron transport. The results highlight the importance of morphology control in improving lithium storage performance and provide insights for designing advanced anode materials.