ELECTROSPUN FLEXIBLE NANOFBRES FOR BATTERIES: DESIGN AND APPLICATION

Abstract

Flexible and free-standing electrospun nanofbres have been used as electrode materials in electrochemical energy storage systems due to their versatile properties, such as mechanical stability, superb electrical conductivity, and high functionality. In energy storage systems such as metal-ion, metal-air, and metal-sulphur batteries, electrospun nanofbres are vital for constructing fexible electrodes and substantially enhancing their electrochemical properties. The need for fexible batteries has increased with increasing demand for new products such as wearable and fexible devices, including smartwatches and fexible displays. Conventional batteries have several semirigid to rigid components that limit their expansion in the fexible device market. The creation of fexible and wearable batteries with greater mechanical fexibility, higher energy, and substantial power density is critical in meeting the demand for these new electronic items. The implementation of carbon and carbon-derived composites into fexible electrodes is required to realize this goal. It is essential to understand recent advances and the comprehensive foundation behind the synthesis and assembly of various fexible electrospun nanofbres.The design of nanofbres, including those comprising carbon, N-doped carbon, hierarchical, porous carbon, and metal/metal oxide carbon composites, will be explored. We will highlight the merits of electrospun carbon fexible electrodes by describing porosity, surface area, binder-free and free-standing electrode construction, cycling stability, and performance rate. Signifcant scientifc progress has been achieved and logistical challenges have been met in promoting secondary battery usage; therefore, this review of fexible electrode materials will advance this easily used and sought-after technology.The challenges and prospects involved in the timely development of carbon nanofbre composite fexible electrodes and batteries will be addressed.