Scholarlink

<p>Aqueous zinc-ion batteries (AZIBs) are promising energy storage devices due to their safety, stability, environmental friendliness, and high performance. However, Zinc anodes suffer from inherent shortcomings, including severe dendritic growth, rapid capacity decay, and side reactions. In order to solve these problems, we designed an oxidized polyacrylonitrile fiber film (OPANF) and used it as a functional interface layer between the zinc-metal anode and the diaphragm. The results show that the as-fabricated OPANF membrane has a homogeneous, interconnected porous structure, a small diameter, and a high specific surface area. This membrane gives OPANF@Zn//OPANF@Zn symmetric cells an ultra-long cycle life of more than 1,000&#xa0;h at 3.0 mAcm<sup>-2</sup> and 1mAh cm<sup>-2</sup>. The OPANF@Zn//Ti half-cell has an average coulombic efficiency (CE) of up to 99.6% and maintains over 1200 cycles at 5&#xa0;mA cm<sup>-2</sup> and 1mAh cm<sup>-2</sup>, while the unmodified Zn//Ti has only 250 short-circuited cycles. The capacity retention of the OPANF@Zn//CNT@MnO<sub>2</sub> full cell is 83% after 500 cycles, demonstrating excellent deposition/stripping stability.</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

Functional interfacial layers of oxidized polyacrylonitrile films for anode application in aqueous zinc-ion batteries

  • 期刊论文

  • 发表日期：

    2026年4月24日

查看全文
  • Jinxiang Long,
  • Mengfan Zhang,
  • Lingzhuo Yang,
  • Chuang wang,
  • Tao Xie,
  • Chuang Li,
  • Xuemei Meng,
  • Xianming wu,
  • Xianwen Wu

摘要

Aqueous zinc-ion batteries (AZIBs) are promising energy storage devices due to their safety, stability, environmental friendliness, and high performance. However, Zinc anodes suffer from inherent shortcomings, including severe dendritic growth, rapid capacity decay, and side reactions. In order to solve these problems, we designed an oxidized polyacrylonitrile fiber film (OPANF) and used it as a functional interface layer between the zinc-metal anode and the diaphragm. The results show that the as-fabricated OPANF membrane has a homogeneous, interconnected porous structure, a small diameter, and a high specific surface area. This membrane gives OPANF@Zn//OPANF@Zn symmetric cells an ultra-long cycle life of more than 1,000 h at 3.0 mAcm-2 and 1mAh cm-2. The OPANF@Zn//Ti half-cell has an average coulombic efficiency (CE) of up to 99.6% and maintains over 1200 cycles at 5 mA cm-2 and 1mAh cm-2, while the unmodified Zn//Ti has only 250 short-circuited cycles. The capacity retention of the OPANF@Zn//CNT@MnO2 full cell is 83% after 500 cycles, demonstrating excellent deposition/stripping stability.