Recent advancement in metal-organic frameworks and composites for high-performance supercapatteries

Abstract

High-performance electrochemical energy storage devices concurrently require enhanced energy density, power density, and long lifespan, which has led to the emergence of supercapattery technology. Supercapatteries are on a rapid development path with the emergence of suitable electrode materials and befitting device architecture that integrates high energy density of batteries with the high-power density and cyclability of supercapacitors in a single device. Transition metal compounds have achieved a benchmark in supercapatteries, but these compounds face challenges in controllable structure and porosity to achieve better electrochemical performance. Multifunctional metal-organic frameworks (MOFs) appear as the next-generation material and have fascinated immense consideration in supercapattery applications. Their outstanding properties like high specific surface area with controllable pore structure and architectural tunability has resulted in the advancement of active electrode materials for supercapatteries. This review critically examines the current progress in transition metal compound based electrode materials and advancement of MOF-derived structures and their composites for supercapattery applications. This review article highlights the potential in MOF-based supercapatteries that provides a blueprint for next-generation, high performance electrochemical energy storage systems.