Preparation of siloxene-graphene 2D/2D heterostructures for high performance supercapacitors in electric vehicles

Abstract

The development of wide temperature tolerance supercapacitors (SCs) with high specific energy without compromising specific power is an area of emerging interest owing to the increasing demands for electrochemical energy storage system (EES). This chapter discusses the preparation of siloxene-graphene (rGO) 2D/2D heterostructures (via chemical methods) and examines their potential utility toward SCs for electric vehicles (EVs). The electrochemical characterization of the siloxene-rGO SC showed that they possess high specific energy (55.79 Wh kg−1), and specific power (15, 000 W kg−1). And their ability to operate over a wide temperature range (−15 to 80°C), ensuring their suitability as an EES in EVs. The additional experimental studies suggested the ability of the solar-charged siloxene-rGO SC to drive an electric car, and it can capture the regenerative braking energy during the braking process. This chapter provides a new avenue toward the use of siloxene-rGO SC as a suitable EES for next-generation EVs.