Abstract
Among the various electrochemical energy storage devices, supercapacitor is a significant one due to its high power density, excellent charge/discharge mechanism, and longer lifespan. Supercapacitors have the application in various fields including digital communication devices, electric vehicles, and portable devices. In the recent times, flexible supercapacitors have acquired greater attention due to the higher demands for flexible, wearable, and portable electronic devices. Continuous investigations have been carried out in the past several years on the electrode materials of flexible supercapacitors to achieve excellent electrochemical performance. Among the different electrode materials which have been studied till now, biomass-derived carbon showed potentiality owing to its porous structure, large specific surface area, good chemical stability and electrical properties, low cost, and easy processing. In this chapter, various biomass and biowastes from which carbon materials can be derived were discussed along with the energy storage principle and electrochemical performances of flexible supercapacitor electrodes prepared from these biomass-derived carbons of different precursors.
Published Version
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