Scholarlink

<p>For Lithium-ion capacitors (LICs), the electrode mismatches in charge storage capacity/kinetics and balancing high specific power with retained high specific energy remain critical challenges. Herein, porous carbon microtubes were fabricated via coaxial electrospinning by introducing pore-forming agent polymethyl methacrylate (PMMA) into polyacrylonitrile (PAN). In half-cells (0.01&#xa0;V–3.0&#xa0;V), the anode exhibited an enhanced specific capacity of 329.9 mAh g<sup>−1</sup> at the current density of 0.1&#xa0;A g<sup>−1</sup>. Even at a higher current density of 1&#xa0;A g<sup>−1</sup>, its specific capacity still reached 166.1 mAh g<sup>−1</sup> and maintained 95% initial capacity after 200 cycles. The assembled AC//1-0.5CF LICs delivered a maximum specific energy of 80.4 Wh kg<sup>−1</sup> and a peak specific power of 7.0&#xa0;kW kg<sup>−1</sup>, highlighting its promising application potential in high-performance LICs. Furthermore, the method proposed in this work is applicable to other carbon-based composite materials and provides new insights for the manufacturing of high-performance flexible electrodes used in energy storage devices.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Coaxial electrospun porous carbon microtubes for high-performance Li-ion capacitor anodes

  • 期刊论文

  • 发表日期：

    2026年7月16日

查看全文
  • Liyang Lin,
  • Shuo Gao,
  • Benrun Shi,
  • Yituan He,
  • Qingqing Yong,
  • Zhen Wei,
  • Hao Zhang

摘要

For Lithium-ion capacitors (LICs), the electrode mismatches in charge storage capacity/kinetics and balancing high specific power with retained high specific energy remain critical challenges. Herein, porous carbon microtubes were fabricated via coaxial electrospinning by introducing pore-forming agent polymethyl methacrylate (PMMA) into polyacrylonitrile (PAN). In half-cells (0.01 V–3.0 V), the anode exhibited an enhanced specific capacity of 329.9 mAh g−1 at the current density of 0.1 A g−1. Even at a higher current density of 1 A g−1, its specific capacity still reached 166.1 mAh g−1 and maintained 95% initial capacity after 200 cycles. The assembled AC//1-0.5CF LICs delivered a maximum specific energy of 80.4 Wh kg−1 and a peak specific power of 7.0 kW kg−1, highlighting its promising application potential in high-performance LICs. Furthermore, the method proposed in this work is applicable to other carbon-based composite materials and provides new insights for the manufacturing of high-performance flexible electrodes used in energy storage devices.

Graphical Abstract