Graphene – flakes of crystalline carbon just a single atomic layer thick – is a promising electrode material for supercapacitors, but on its own doesn’t achieve the charge-storing capacity ...

Graphene has been a wonder material ... or using metal as one electrode and air as the other. New supercapacitors that hold much more energy than existing devices could also be possible.

Typical construction of a supercapacitor: (1) power source, (2) collector, (3) polarized electrode, (4) Helmholtz double layer, (5) electrolyte having positive and negative ions, (6) separator. (Image ...

c, d) Discharged air electrode using FGS with C/O = 14 and C/O = 100, respectively. (© American Chemical Society) Even 3D-printed graphene batteries, using graphene ink, have already been demonstrated ...

you can literally print patterns of graphene using the laser in your DVD burner. By making the shapes shown above, you can introduce an electrolyte and turn the whole thing into a supercapacitor.

"The exceptional performance and durability of our electrodes shows great potential for graphene PEDOT's use in supercapacitors that can help our society meet our energy needs," said corresponding ...

One great example is the structural supercapacitor project ... with conductivity and cycle life, which graphene can improve by stabilizing sulfur electrodes and preventing capacity loss.