ABSTRACT
Automobiles are a manifestation of human wealth and development. But their wastes, ranging from exhausts to various scraps, are crucial elements that hinder the world’s continuous outlook and commitment toward pollution-free sustainable environmental solutions. More than 1.5 billion automobiles ply on roads each day, with many added and withdrawn every single day. Nevertheless, the number generates a considerable amount of wastes ranging from particulate matter (PM2.5) air pollutant, waste and scrap tires, and waste engine oil. Essentially, most automobile wastes act as carbon precursors for supercapacitor electrode materials since the fuel burnt is developed from hydrocarbons. Moreover, in recent years, waste from the automotive industry has been studied with various recycling techniques developed, but without much success in reusing it in any specific field. This chapter provides a comprehensive insight into deriving supercapacitor products from automobile wastes. Compared to conventional electrical capacitors, they have higher capacitance values. As a potential alternative to batteries, they have faster charge–discharge rates and longer cycle life and suffer less wear and tear than batteries. In this concern, this chapter focuses on designing supercapacitors and specific parts and aims to accomplish the dual role of sustainably using automobile wastes and producing meaningful supercapacitors. But there remains much scope for future studies as studies have just been initiated and need much deliberation for broader use for mankind and sustainable living.
