Versatile electrospinning technology on solid-state electrolytes for energy storage: A brief review

Replacing liquid electrolytes with solid electrolytes has become one of the most promising approaches to address the safety issues and capacity degradation of Li-ion and LiS batteries. Solid electrolytes will bring problems such as unsatisfactory ionic conductivity and large interfacial impedance between the electrolyte and the electrode. Rational material structures and compositions are expected to improve their ionic conductivity, interfacial contact, and mechanical integrity. Electrospinning technology is a simple and cost-effective method to easily fabricate multifunctional nanofibrous structures. In this review, we systematically discuss current strategies for designing nanofibrous structures, including specific surface area, mechanical flexibility, and progress in various nanostructures. Subsequently, the construction and multifunctional applications of electrospun nanofibers in three main types of solid-state electrolytes are reviewed. Finally, we highlight the future prospects of discharge nanofiber technology for solid-state lithium batteries.