To enhance the bonding strength between the active material and the core yarn current collector through nano-entanglement,bacterial cellulose/carbon nanotube(BC/CNT)nanofiber yarns were developed using in situ cultiva...To enhance the bonding strength between the active material and the core yarn current collector through nano-entanglement,bacterial cellulose/carbon nanotube(BC/CNT)nanofiber yarns were developed using in situ cultivation and wet twisting.This method utilizes the large specific surface area and abundant active functional groups of BC-based nanofibers.Subsequently,V2O5/BC/CNT composite yarn electrodes were fabricated,exhibiting a core-sheath structure with excellent conformal characteristics.The influence of ultrasound duration on the conductivity and electrochromic performance of composite yarns was investigated.The initial discharge-specific capacity was recorded as 105.3 mAh/g,with a capacity retention rate of 60.2%after 100 cycles.The composite yarn exhibited 100 reversible transitions between yellow and blue,with reduction and oxidation response times of 2.35 s and 3.3 s,respectively.The modulation amplitude at 532 nm during the initial cycle was 20.31%,and after 100 cycles,the modulation amplitude retention rate remained at 68%.展开更多
基金the National Natural Science Foundation of China(22305206)Autonomous Region Natural Science Foundation(202110120008).
文摘To enhance the bonding strength between the active material and the core yarn current collector through nano-entanglement,bacterial cellulose/carbon nanotube(BC/CNT)nanofiber yarns were developed using in situ cultivation and wet twisting.This method utilizes the large specific surface area and abundant active functional groups of BC-based nanofibers.Subsequently,V2O5/BC/CNT composite yarn electrodes were fabricated,exhibiting a core-sheath structure with excellent conformal characteristics.The influence of ultrasound duration on the conductivity and electrochromic performance of composite yarns was investigated.The initial discharge-specific capacity was recorded as 105.3 mAh/g,with a capacity retention rate of 60.2%after 100 cycles.The composite yarn exhibited 100 reversible transitions between yellow and blue,with reduction and oxidation response times of 2.35 s and 3.3 s,respectively.The modulation amplitude at 532 nm during the initial cycle was 20.31%,and after 100 cycles,the modulation amplitude retention rate remained at 68%.
