There is a great deal of interest in other 2D compounds due to the
development and practicality of graphene in many fields. Due to its similar properties
to graphene, the boron nitride (BN) nanosheet has become one of the most thoroughly
studied and investigated nanomaterials in this area. The next wave of electrical and
optoelectronic products can incorporate 2D-hBN and other 2D materials like graphene.
In this chapter, our main aim is to summarize the 2D h-BN nanosheets and their
synthesis process via two different mechanisms, i.e., exfoliation techniques and the
Chemical Vapour Deposition (CVD) process. The chapter also provides insights into
the 2D h-BN's energy-associated properties and their applications in fabricating various
energy storage devices, including batteries, supercapacitors, and solar and fuel cells.
Keywords: Batteries, Boron Nitride, Exfoliation, Chemical vapour deposition, Energy.