Affiliation:
1. Renewable Energy Research Laboratory Faculty of Engineering Sciences Ghulam Ishaq Khan Institute of Engineering Sciences and Technology Topi 23640 Khyber Pakhtunkhwa Pakistan
2. Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia
3. School of Chemical Engineering Yeungnam University 280 Daehak‐ro Gyeongsan 38541 Gyeongbuk Republic of Korea
4. Department of Mechanical and Nuclear Engineering Khalifa University Abu Dhabi 12788 United Arab Emirates
Abstract
State‐of‐the art hybrid energy storage devices, owing to their attractive electrochemical features of high specific energy, power, and great stability, have earned incredible attention throughout the world. Herein, bimetallic sulfide (SrCuS) composites with different concentration are electrochemically analyzed for hybrid supercapacitor applications. In half‐cell assembly, amidst all compositions, Sr0.5Cu0.5S reveals relatively better performance demonstrating specific capacity “Qs” of 596.48 C g−1. To assess the hybrid device's (Sr0.5Cu0.5S//AC) electrochemical performance, positive electrode (Sr0.5Cu0.5S) along with activated carbon as negative electrode is utilized. The device displayed energy density “Ed” of (51.28 W h kg−1) and power density “‘Pd” of 6800 W kg−1. Furthermore, the device is examined for capacitive‐ and diffusive‐controlled processes employing a semi‐empirical approach, using linear and quadratic models, respectively.