Aqueous zinc-ion hybrid supercapacitors (ZHSCs) have arose as a favourable energy storage device because of their low cost, excellent safety profile, and eco-friendly nature. Unfortunately, the device shorts out due to the glass fiber's strong affinity for zinc ions, which causes zinc dendrites to develop towards the separator. An innovative approach of controlling zinc deposition behaviors through the use of pyrolysis polyaniline functionalized glass fiber (GF-PANI) separator is presented here. Zinc ion flow and deposition behavior are both controlled by the porous PANI structure, which serve to confine the ions. Abundant nitrogen-containing functional groups have the ability to absorb molecules of water. This greatly enhances the zinc anode's reversibility and safety features. Consequently, GF-PANI separators based Zn/Zn symmetric cells have a higher cycle life, lasting up to 800 hours at 2 mA cm⁻² and 1 mA h cm⁻² (120 h). Furthermore, a Zn/JAC cell with GF-PANI separator demonstrates a good specific capacity even after 40000 cycles at 10 A g⁻¹ in comparison to Zn/GF/JAC cells. This study investigated the design of synergistic, economical, and efficient separators for ZHSCs.

中文翻译：

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具有海绵状形态的装饰性隔膜聚苯胺可实现无枝晶锌离子混合超级电容器


水系锌离子混合超级电容器 （ZHSC） 因其低成本、出色的安全性和环保性而成为一种有利的储能设备。不幸的是，由于玻璃纤维对锌离子的强亲和力，该装置会短路，这会导致锌枝晶向隔膜发展。本文提出了一种通过使用热解聚苯胺功能化玻璃纤维 （GF-PANI） 隔膜来控制锌沉积行为的创新方法。锌离子流动和沉积行为都由多孔 PANI 结构控制，用于限制离子。丰富的含氮官能团具有吸收水分子的能力。这大大增强了锌阳极的可逆性和安全性。因此，基于 GF-PANI 隔膜的 Zn/Zn 对称电池具有更高的循环寿命，在 2 mA ^cm-2 和 1 mA h ^cm-2 （120 h） 下可持续长达 800 小时。此外，与 Zn/GF/JAC 电池相比，带有 GF-PANI 隔膜的 Zn/JAC 电池即使在 10 A ^g-1 下循环 40000 次后也表现出良好的比容量。本研究调查了 ZHSC 的协同、经济和高效分离器的设计。