Rahadian Zainul, Ali Basem, Aiham O. Altayeh, Subhash Chandra, Néstor Augusto Estrada Brito, Abdullah Hasan Jabbar, Santiago Israel Logroño Naranjo, Maha Noori Shakir, Ahmed Elawady
Ionic liquids (ILs) stand out due to the characteristic negligible vapor pressure and molecular design ability, along with several intriguing features like a highly ionized environment, good thermal/chemical stability, and universal solubility/affinity, to satisfy the high-energy request for creating better supercapacitors (SCs). In this context, the ILs of choline acetate ([Ch]Ac) and choline propionate ([Ch]Pr) were synthesized. In the ambient temperature, significant features including viscosity, and electrochemical tests were investigated. The SCs with choline-based ILs electrolytes display exceptional electrochemical stability at a maximum voltage of up to 3.9 V. At room temperature, the specific capacitance of the electrolyte containing IL [Ch]Ac was obtained to 106.52 F/g with an energy density of 47.93 Wh/kg and power density of 450 W/kg at 1 A/g. In addition, the SC made using IL [Ch]Ac retained 90.94% of its capacity up to 3000 cycles at 2 A/g. The findings have significant ramifications for extending the use of eco-friendly, non-toxic, and affordable electrolytes for high-performance SCs with broad voltage windows and improved longevity. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang, Indonesia; Center for Advanced Material Processing, Artificial Intelligence, and Biophysics Informatics (CAMPBIOTICS), Universitas Negeri Padang, Padang, Indonesia; Faculty of Engineering, Warith Al-Anbiyaa University, Karbala, 56001, Iraq; Department of Petroleum Engineering, Al-Amarah University College, Maysan, Iraq; Department of Electrical Engineering, GLA University, Mathura, 281406, India; Facultad de Informática y Electronica, Escuela Superior Politécnica de Chimborazo (ESPOCH), Riobamba, 060106, Ecuador; Scientific Research Center, Al-Ayen Iraqi University, Thi-Qar, 64001, Iraq; Department of Medical Laboratories Technology, Al-Nisour University College, Baghdad, Iraq; College of Technical Engineering, The Islamic University, Najaf, Iraq
