During the last six months, we were able in collaboration with FORTH to spray mixture of Graphene nanoplatelets (GNP) and Carbon Nanotubes (CNTs) on a large surface of 30cmx30cm.

The spray has been performed on commercial aluminum collectors that are usually used for supercapacitors.  In this way we have implemented a process that can be easily up-scaled for industrial production of low-cost supercapacitors electrodes.

In the next months we will perform tests using different mixtures of GNP and CNTs at different concentrations in order to define the best compromise in term of capacitance and power delivered.

This is the first time that a deposition by spray on a so large surface is performed. This is the state-of-the-art of the technique.

Before the end of the project this technique will be implemented on the new roll-to-roll machine that will be delivered. Thanks to that we can predict an industrial production in the next two years.

We will implement also this technique in the frame of SMARTFAN for spraying on fabrics in collaboration with NTUA and FORTH for automotive applications. This work is in progress.

Electrodes obtained through spray-gun deposition method of GNTS/CNTs