Rafique Hirra, Iqbal Muhammad Waqas, Wabaidur Saikh Mohammad, Hassan Haseeb Ul, Afzal Amir Muhammad, Abbas Tasawar, Habila Mohamed A, Elahi Ehsan
Department of Physics, Riphah International University, Campus Lahore Pakistan
Chemistry Department, College of Science, King Saud University Riyadh 11451 Saudi Arabia.
RSC Adv. 2023 Apr 24;13(19):12634-12645. doi: 10.1039/d3ra01230a.
A supercapattery is a hybrid device that is a combination of a battery and a capacitor. Niobium sulfide (NbS), silver sulfide (AgS), and niobium silver sulfide (NbAgS) were synthesized by a simple hydrothermal method. NbAgS (50/50 wt% ratio) had a specific capacity of 654 C g, which was higher than the combined specific capacities of NbS (440 C g) and AgS (232 C g), as determined by the electrochemical investigation of a three-cell assembly. Activated carbon and NbAgS were combined to develop the asymmetric device (NbAgS//AC). A maximum specific capacity of 142 C g was delivered by the supercapattery (NbAgS//AC). The supercapattery (NbAgS/AC) provided 43.06 W h kg energy density while retaining 750 W kg power density. The stability of the NbAgS//AC device was evaluated by subjecting it to 5000 cycles. After 5000 cycles, the (NbAgS/AC) device still had 93% of its initial capacity. This research indicates that merging NbS and AgS (50/50 wt% ratio) may be the best choice for future energy storage technologies.
超级电容器电池是一种将电池和电容器结合在一起的混合装置。通过简单的水热法合成了硫化铌（NbS）、硫化银（AgS）和铌银硫化物（NbAgS）。通过对三电池组件的电化学研究确定，NbAgS（重量比50/50）的比容量为654 C/g，高于NbS（440 C/g）和AgS（232 C/g）的比容量之和。将活性炭和NbAgS结合起来开发不对称装置（NbAgS//AC）。超级电容器电池（NbAgS//AC）的最大比容量为142 C/g。超级电容器电池（NbAgS/AC）在保持750 W/kg功率密度的同时提供了43.06 W h/kg的能量密度。通过对NbAgS//AC装置进行5000次循环来评估其稳定性。经过5000次循环后，（NbAgS/AC）装置仍具有其初始容量的93%。这项研究表明，将NbS和AgS（重量比50/50）合并可能是未来储能技术的最佳选择。
