Graphene-based supercapacitors (SC) are rising as the most efficient and
smart energy storage systems. Nonpareil physiochemical properties of graphene offer
immense potential for their use in developing next-generation energy storage and
portable devices. Since the rise of graphene, this material has been seen as the best
alternative to activated carbon in SC applications. Being a 2D material, its high surface
area enables it to store electrostatic charge even after high cycling. Since the first
graphene-based SC was fabricated in 2008, this material has been explored beyond the
boundaries of pristine graphene. The recent invention paved the way for ultrafast
charging devices with excellent efficiency. However, the widespread use of these
devices in daily life seems far-fetched, but recent results in graphene-based
architectures are fetching these possibilities to life. In the last decade, various
revamped and manipulated graphene derivatives have also been investigated and found
to have great potential in SC applications. These derivatives have shown tremendous
specific capacitance with enhanced cyclability. Graphene derivatives can even exhibit
capacitance retention of almost 100% after 20,000 cycles. This book chapter discusses
the current state of affairs in various graphene-based SC devices, such as crumpled
graphene, graphene-metal oxide composites, graphene-based aerogels, graphene
nanoparticle systems, graphene-based fibers, graphene/carbon-based hybrid composites
for their potential application in the fabrication of efficient energy devices. This
comprehensive study aims to analyze current trends and the opportunities and
challenges offered by graphene and its derivatives in the development of nextgeneration SCs.
Keywords: DSSC, EDLC, Graphene, Supercapacitor, Solar-cell, Storage.
