Recent Progress in Graphene‐Based Microsupercapacitors

Abstract

The fast growing field of microsized electronic devices has urgent demand for next‐generation microscale, flexible, and lightweight energy conversion and storage devices. Among the various microdevices, microsupercapacitors (MSCs) are a promising energy storage device due to their fast rechargeability, better rate capability, long cycle life, and ultrahigh power density. The 2D graphene possesses a large surface area with flexibility, better conductivity, transparency, and high quantum capacitance that lead to an ideal energy storage material for the MSCs. Therefore, this review aims to summarize recent advances in graphene‐based MSCs. A particular emphasis is put on the various fabrication technologies for MSCs such as printing, laser, wet‐spin, and photolithography technique that are discussed elaborately. Moreover, an overview of the state‐of‐the‐art on graphene‐based electrode materials and its different composite with transition metal oxides, transition metal hydroxides, conducting polymers, transition metal chalcogenides, and MXene‐based electrode materials for MSCs are discussed and their electrochemical performances are summarized. Furthermore, this review concludes with perspectives and outlooks.

Multiwalled Carbon Nanotubes: Matrix Nanostructured Composites as Electrode Materials for Supercapacitors

“…[ 1–8 ] These systems attract a lot of attention largely due to the shown promise of creating composite electrode materials for supercapacitors (SCs) with high functional characteristics. [ 9–19 ] Majority of works focuses on the composites obtained from highly porous carbon matrices with highly developed mesoporosity and specific surface area. Research efforts have been aimed at achieving the highest possible functional parameters (stored electrical capacitance, its stability during multiple potential cycling, charging rate, etc.)…”

Atomic and structural modifications of two-dimensional transition metal dichalcogenides for various advanced applications

“…As a result, the integration of organic molecule printing techniques with TMDs can be effectively used for largescale fabrication at low-cost, lightweight wearable biosensors, exible photodetectors, micro-energy storage devices, and memory elements. [284][285][286][287] Therefore, it will provide a pathway for developing next-generation electronic technologies.…”

Cellulose-Derived Nanostructures as Sustainable Biomass for Supercapacitors: A Review

“…Microsized electronic devices are considered more promising due to their microscale, flexibility, and light-weight energy conversion and storage capability. Among different microdevices, micro-supercapacitors are very effective energy storage devices owing to their ultra-high power density, rapid rechargeability, better rate capacity, and long cyclability [ 160 ]. Moreover, cellulose microfibers or nanostructures have great potential in developing flexible, wearable microsized and piezoelectric supercapacitors in the future [ 161 , 162 ].…”