Preparation of biomass-based carbon materials and its research progress in supercapacitors
Biomass-derived carbon materials have attracted more and more attention as efficient and cheap super-capacitor electrode materials due to their renewability and flexible microstructure tunability.However,the orig-inal biomass-derived carbon has the disadvantages of low porosity,low specific surface area and insufficient spe-cific capacitance.The specific surface area,pore structure and conductivity of electrode materials will affect the energy storage performance of supercapacitors.Therefore,how to fabricate electrode materials with high specif-ic capacitance,fast charge and discharge and certain flexibility has become the focus of current research.In this paper,the classification and energy storage mechanism of supercapacitors and the preparation methods and re-search status of biomass-based carbon materials are reviewed.The key performance evaluation parameters of high-quality load electrodes are analyzed,and the influencing factors of their electrochemical performance are systematically discussed.The future development trend is to integrate different types of energy storage devices into composite energy storage devices to meet the needs of various fields.Composite energy storage devices have greatly improved the comprehensive performance of supercapacitors.Therefore,the development of efficient and stable energy storage technology is of great significance for alleviating energy shortage,reducing environ-mental pollution and promoting sustainable development.
万方数据
维普
