材料科学
纱线
电极
聚丙烯腈
复合材料
超级电容器
聚吡咯
纤维
电容
静电纺丝
碳纤维
聚合
聚合物
复合数
物理化学
化学
作者
Tingting Li,Xiangdong Fu,Xuefei Zhang,Bing‐Chiuan Shiu,Jia‐Horng Lin,Ching‐Wen Lou
标识
DOI:10.1016/j.surfin.2022.102274
摘要
To fulfill the growing demand for durable and deformable flexible wearables, this study proposes a fibrous zinc ion battery negative electrode that is low-cost, easy to prepare, and similar to the flexible yarn. We have constructed a new type of carbon fiber/polyacrylonitrile(PAN)/polypyrrole(PPy) Zn electrode ([email protected] yarn electrode). Based on carbon fiber yarn, PAN wrapped carbon yarn (CP yarn) was prepared by electrospinning. PPy nanoparticles were deposited on CP yarn by in-situ polymerization to get the highly conductive yarn (CPP yarn). Finally, Zn is deposited on the CPP yarn by electrodeposition to obtain the [email protected] yarn electrode. When the deposition voltage is 1 V and the time is 30 min, the flexibility and the Zn crystal morphology of the [email protected] yarn electrode are the best, the specific capacity is the highest. When the current density is 0.04 A·cm−1, the specific capacity can reach 981.3 mF·cm−1 and the energy density is 0.18 W·h·cm−1. After cyclic charge and discharge repeated 300 times, 87.76% of the original specific capacity can still be maintained. After bending the [email protected] yarn electrode for 500 times, the specific capacitance can still maintain 86.13% of the original specific capacitance. The yarn electrode has excellent electrochemical stability and flexibility, and it has broad application prospects in wearable smart textiles.
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