One-dimensional nanomaterials toward electrochemical sodium-ion storage applications via electrospinning

The demand for energy storage technologies is rapidly increasing due to the development of grid-scale energy storage applications. Sodium-ion storage devices have been considered as potential candidates for large-scale energy storage systems owing to the natural abundance and low price of sodium resources. As a cost-effective and versatile method, electrospinning has been used to fabricate designed one-dimensional architectures with targeted components for advanced energy storage systems. Benefiting from the large surface area, continuous one-dimensional charge transportation channels and short distant for ionic transport, electrospun materials are helpful to improve the electrochemical sodium storage performance of the devices. This review presents a comprehensive summary of the forefront in the development of electrospun materials for sodium-ion storage devices, including sodium-ion batteries (SIBs), sodium-sulfur batteries, sodium-selenium batteries, sodium-air batteries and sodium-ion hybrid capacitors, with particular emphases on the synthesis strategies and improved electrochemical performance. The development of electrospun anode and cathode materials for SIBs is introduced in detail, respectively. Furthermore, in conclusion, the remaining challenges and prospects of electrospinning and electrospun materials are discussed and the future research directions are pointed out. We expect that this review could be helpful to researchers in design and fabrication of electrospun materials for sodium-ion storage devices.