Are graphene-based materials suitable for supercapacitors and other energy storage devices?

The graphene-based materials are promising for applications in supercapacitors and other energy storage devices due to the intriguing properties, i.e., highly tunable surface area, outstanding electrical conductivity, good chemical stability and excellent mechanical behavior.

Are graphene-based electrode materials suitable for supercapacitors?

Graphene-based materials in different forms of 0D, 1D, 2D to 3D have proven to be excellent candidates of electrode materials in electrochemical energy storage systems, such as supercapacitors.

What are the limits of graphene in supercapacitors?

Thus, supercapacitors based on graphene could, in principle, achieve an EDL capacitance as high as ∼ 550 F g −1 if the entire surface area can be fully utilized. However, to understand the limits of graphene in supercapacitors, it is important to know the energy density of a fully packaged cell and not just the capacitance of the active material.

When was the first graphene supercapacitor invented?

Since Stoller described the first graphene supercapacitor in 2008, significant developments have been made during this last decade in the development of new graphene-based electrodes.

What are graphene-based hybrid supercapacitors?

Recently, graphene-based hybrid supercapacitors capable of providing up to 42 Wh l −1 have been reported 62. The advantage of these hybrid supercapacitors is that they work with aqueous electrolytes and can be produced in air without the need for expensive ‘dry room’ assembly.

Can graphene hybrid batteries be used in other batteries?

In addition to LIBs, graphene hybrids have also been shown to achieve excellent performance in a range of other batteries: for example, serving as electrodes in Na + and Al 3+ batteries, and as a high-efficiency catalyst in metal–air batteries.