纤维材料在柔性可穿戴锌电池中的应用进展

Application progress of fiber materials in flexible wearable zinc batteries

为促进安全、低成本锌离子电池在柔性储能装置中的应用,以纤维材料基锌离子电池为研究对象,首先明晰了充放电过程中锌负极氧化反应及过渡金属氧化物或氧正极还原反应机制;其次探索了碳纤维、碳纳米纤维、碳纳米管纱线、金属纤维以及其他无机纤维等纤维材料,在柔性锌电池正极、负极和电解质等领域的应用研究现状,分析并类比了不同制备工艺、微结构、改性方式等对纤维基柔性电池电化学特性的调控效果,明确了影响其性能优劣的主要参数;最后提出纤维材料的结构有序化设计对于提升电池电化学性能具有显著效果,强调了天然纤维基电极材料广阔的发展前景。研究对于加速智能服装的产业化应用,助力“碳达峰、碳中和”愿景的早日实现具有积极的推动意义。

In order to promote the application of zinc ion batteries with high safety and low cost in flexible energy storage devices,the paper takes fiber-based zinc ion batteries as the object and firstly clarifies the mechanism of zinc anode oxidation and transition metal oxide or oxygen positive cathode reduction in the process of charge and discharge proccess.Secondly,fibers such as carbon fiber,carbon nanofiber,carbon nanotube yarn,metal fiber and other inorganic fiber in the cathode,anode and electrolyte of flexible zinc battery are reviewed.The effects of different preparation processes,microstructure and modification strategies on the electrochemical characteristics of fiber-based flexible batteries are analyzed and compared,and the main parameters affecting its performance are defined.At last,it is proposed that the structural ordered design of fibers has a significant effect on improving the electrochemical performance of batteries,and the broad development prospect of natural fiber based electrode materials is emphasized.This paper has a positive significance for accelerating the industrial application of intelligent clothing and helping to realize the vision of"carbon peak and carbon neutralization"as soon as possible.