With the development of flexible wearable electronics, fiber-shaped energy storage devices (FSESs) have attracted considerable interest in recent years. Owing to their large geometric dimension and solid inner structure, the specific surface area and the utilization of the electrodes are limited, which results in low capacities and energy densities of FSESs. To further improve the energy densities of the FSCs, the nanostructure of the one-dimensional electrodes should be designed to promote the utilization and increase the accessible area for electrolyte and thus improving their specific capacities and energy density.<br/>In this study, polymer or carbon-based fiber electrodes with hierarchical porous structures have been fabricated as electrodes of FSESs. As electrodes of the all solid-state or quasi-solid-state FSESs, the fiber electrodes exhibit high flexibility and remarkable electrochemical performances with a high energy density.

Flexible, fiber-shaped, high-performance energy storage devices

2019 Fall National Meeting

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