Herein, after a brief introduction on the history of smart and functional fibers, we review the current state of advanced functional fibers for their application in energy conversion and storage, focusing on nanogenerators, solar cells, supercapacitors and batteries.
Recently, fiber-shaped energy storage devices (FESDs) such as fiber batteries and fiber supercapacitors , , , with advantages of miniaturization, flexibility, and permeability, have the potential to integrate with other flexible electronic products and weave into wearable, comfortable, and breathable smart clothing, .
Are fiber-shaped energy storage devices a potential candidate for future research?
The challenges and possible future research directions of fiber-shaped energy storage devices. Given the rapid progress in flexible wearable electronics, fiber-shaped energy storage devices (FESDs) with the unique advantages of miniaturization, adaptability, and wearability are considered potential candidates.
How can fiber energy storage devices be used in practical applications?
Integrating fiber energy storage devices into practical applications such as sensors, microcontrollers, displays, etc. requires addressing compatibility issues between fibers and other materials, matching in size, shape, and interface, which may require customized design and manufacturing processes.
Flexible electrochemical energy storage devices with high energy density are essential for powering portable and wearable electronics. In recent years, numerous researchers have been dedicated to the development of flexible energy storage devices, achieving significant progress in energy and power density.
Is there a standardized characterization of fiber energy storage devices?
More importantly, there is a lack of standardized characterization in the emerging research field of fiber energy storage devices. Energy and power density: energy density is an important indicator that characterizes the amount of energy that can be stored.
Are fiber batteries flexible?
The fiber batteries exhibited excellent flexibility and high specific energy density (173.33 Wh kg −1) in different bending states. Li et al. prepared a flexible FSB by arranging the ReS 2 fiber cathode and graphite fiber anode in parallel.