Graphene Sheet has a hexagonal structure with two atoms per cell. Therefore, it has a 2D structure. Each carbon atom has a covalent bond with the other three carbon atoms. The graphene sheet is only one atom thick, and each graphene sheet is a single molecule having a flat surface. This unique structure makes it appropriate to be used in technological fields, which include its use in transparent conductive films, nano electronic devices, and composite materials. It possesses electronic transport and chemical tolerance, making it suitable for its application as liquid storage in lithium-ion batteries.