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.
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