Using of transition metal oxides as an electrical material in supercapacitors

Author: Archil Benashvili
Keywords: Supercapacitor, electrode, curves
Annotation:

Annotation The rapid development of the global economy is driving non-renewable growth energy consumption, which accelerates climate change and contributes to environmental pollution. Therefore, it is important to develop efficient, renewable, relatively cheap and environmentally safe energy saving systems. In order to meet the increasing demands of modern systems such as hybrid electric vehicles, portable electronic devices or large-scale energy systems, the efficiency of electrochemical energy storage devices must be significantly improved by the development of new materials and the fundamental study of the electrochemical processes (charge storage at the electrode/electrolyte interface) taking place in such devices. Electrochemical capacitors, also known as supercapacitors, have become a field of great interest in recent years due to their high capacity, fast charge/discharge capability, and long-term cycling [1, 2]. According to the latest research, the supercapacitor market will reach $8.3 billion by 2025, growing at least 15% annually. Despite a number of advantages, supercapacitors lag behind energy sources such as batteries in terms of energy capacity. Considering this, it is appropriate to develop hybrid supercapacitors, which will be energy-capable and powerful power devices.