Abstract
Supercapacitors or ultracapacitors are considered as one of the potential candidates in the domain of energy storage devices for the forthcoming generations. These devices have earned their significance in numerous applications, viz., to power hybrid electric/electric vehicles and other power and electronic systems which require electrical energy for their operation. Supercapacitors are the most versatile devices which are most widely used for delivery of electrical energy in short time and in arenas which demand long shelf life. Therefore, the development of supercapacitors has huge market requirements, and long-term progress is needed for their successful advancement and commercialization. Meanwhile, supercapacitors are also facing challenges such as technical problems, establishing electrical parameter models, consistency testing, and establishing industrial standards. In this paper, the above challenges and the future development opportunities of supercapacitors are introduced in detail. This perspective will provide corresponding guidance and new directions for the development of supercapacitors.
Highlights
In recent times of energy scarcity, energy harvesting from renewable energy sources has been the prime goal of the research community
Supercapacitors form a bridge between conventional capacitors and secondary ion batteries
Supercapacitors are continuously developing energy devices that are designed for high power supply compared to secondary ion batteries
Summary
In recent times of energy scarcity, energy harvesting from renewable energy sources has been the prime goal of the research community. Supercapacitors form a bridge between conventional capacitors and secondary ion batteries.. Supercapacitors form a bridge between conventional capacitors and secondary ion batteries.1–7 They have many advantages, such as high power density, high energy density, long cycle life, fast charge and discharge, instantaneous high current discharge, low cost, easy maintenance and no pollution to the environment (Table I).. The nanostructured materials are gifted with better chemical kinetics, chemical activity, shorter ionic diffusion path lengths, high surface area, and surplus of active sites for electrochemical reactions. It involves materials, energy, chemistry, electronic devices, and other disciplines and has become one of the hotspots of interdisciplinary research.. The opportunities, challenges, and development trends of supercapacitors are summarized based on the current research situation
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