Recent advances in bio-based electrode materials in supercapacitor applications: Energy storage materials and technologies

Abstract

The modern world's reliance on fossil fuels has led to many issues, including rising fuel prices, pollution, climate change, and geopolitical unrest. While massive effort is required to deal with climate change comprehensively. Developing alternative energy sources and storage technologies is an important priority that can only be gained over time by reducing these issues. Because of this, recent years have seen an increase in the use of high-power and high-energy density storage systems, increasing the use of renewable energy sources or improving transportation efficiency contribute to climate change mitigation. Renewable energy resource deployment is associated with storage systems for reliable and continuous energy supply. It is essential to keep developing more efficient storage units to advance environmentally friendly technologies. Despite extensive research and development efforts, an essential upsurge in energy storage capability is required to meet future demand. In the next generation of energy storage devices, supercapacitors (SCs) seem an excellent candidate for wearable and portable electronics compared to the flexible lithium-ion batteries-based technologies. Electrochemically excellent carbon materials are required to protect the environment and develop renewable energy sources, but they are scarce. Depending on the desired carbon morphology, there are many different types of biomasses and biowaste materials from which to choose carbon precursors. The preparatory work and characterization of newly found and evolved bio-based carbon sources are discussed and summarized in this study. Precursor and nanostructure types are listed in alphabetical order. New carbon precursors with excellent electrochemical performance in energy storage applications are also discussed. Ultimately, a conclusion and an outlook from the application perspective are drawn.