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<p>With the rapid growth of solar energy, the recycling and reuse of used solar panels have become critical issues. Recycling high-value photovoltaic silicon from solar cells is an essential step toward achieving carbon neutrality. In this paper, an efficient and valuable recycling strategy is employed to convert recycled silicon from discarded solar cells into lithium-ion anode materials. MXene significantly enhances the electrochemical performance of the W-Si/CNTs@C@MXene material. MXene serves not only as a conductive substrate that improves the electrode’s conductivity but also effectively mitigates the volume expansion of silicon during lithium intercalation. The surface functional groups of MXene facilitate stable interactions with silicon, enhancing cycling stability and overall battery efficiency. Additionally, the ZIF-67-derived porous carbon improves ionic conductivity within the composite. These synergistic effects contribute to the superior electrochemical performance of W-Si/CNTs@C@MXene, making it a promising candidate for lithium-ion batteries. The potential uses of MXene and W-Si/CNTs@C@MXene materials in lithium-ion batteries are substantiated by comprehensive material characterization and electrochemical performance testing.</p>

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Performance analysis of electrostatic self-assembly of MXene-based photovoltaic recycled silicon–carbon anode cell

  • 期刊论文

  • 发表日期：

    2025年12月4日

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  • Miaojie Feng,
  • Jiangxin Qiu,
  • Jie Cheng,
  • Yuxing Guo,
  • Yikai Wang,
  • Tao Zhou,
  • Zhenfeng Bian,
  • Yongsheng Liu

摘要

With the rapid growth of solar energy, the recycling and reuse of used solar panels have become critical issues. Recycling high-value photovoltaic silicon from solar cells is an essential step toward achieving carbon neutrality. In this paper, an efficient and valuable recycling strategy is employed to convert recycled silicon from discarded solar cells into lithium-ion anode materials. MXene significantly enhances the electrochemical performance of the W-Si/CNTs@C@MXene material. MXene serves not only as a conductive substrate that improves the electrode’s conductivity but also effectively mitigates the volume expansion of silicon during lithium intercalation. The surface functional groups of MXene facilitate stable interactions with silicon, enhancing cycling stability and overall battery efficiency. Additionally, the ZIF-67-derived porous carbon improves ionic conductivity within the composite. These synergistic effects contribute to the superior electrochemical performance of W-Si/CNTs@C@MXene, making it a promising candidate for lithium-ion batteries. The potential uses of MXene and W-Si/CNTs@C@MXene materials in lithium-ion batteries are substantiated by comprehensive material characterization and electrochemical performance testing.