DESIGN AND PRODUCTION OF HIGH ENERGY DENSITY SUPERCAPACITOR USING GRAPHITE ALUMINIUM COMPOSITE MATERIAL

Environment and energy are the issues that are going around for years. This issue involves the whole world. The climate variation and insufficient availability of fossil fuels have greatly affected the world’s economy as well as ecology (Joshi & Sutrave, 2019). The concern about climate change, the drawbacks that petroleum dependency has for many countries, and an increasingly interconnected society entail significant changes in systems. Particularly, as a result of the expansion of renew- able energy generation, the electrification of the transport sector and the growing demand for wireless electrical devices, electrical energy storage systems (ESS) are growing into a major research topic (Tokin, 2017). Supercapacitors (SCs) are ESSs that bridge the gap between batteries and conventional capacitors with regard to energy and power densities. A capacitor is a pair of two conductors of any shape, which are separated through a small distance or in close proximity and have equal and opposite charge. In other words, a capacitor is a device that stores electric energy (Berrueta et al., 2019). A supercapacitor is also a capacitor but its capacitance value is much higher than other capacitors Supercapacitors, also known as ultracapacitors and electric double layer capacitors (EDLC), are capacitors with capacitance values greater than any other capacitor type available today. Supercapacitors are breakthrough energy storage and delivery devices that offer millions of times more capacitance than traditional capacitors. They deliver rapid, reliable bursts of power for hundreds of thousands to millions of duty cycles – even in demanding conditions (Ilinois Capacitor Inc, 2012).