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Can you make a supercapacitor from kapton tape? Yep! Using a laser, we can decompose the Kapton (polyimide) into a graphene "foam" via a process known as Laser Induced Graphene. This form of graphene makes an excellent material for electrostatic doublelayer supercapacitors. It has reasonable conductivity and a very large surface area due to the foamy nature, which allows good contact with the electrolyte.

"Lin, Jian, et al. "Laserinduced porous graphene films from commercial polymers." Nature communications 5.1 (2014): 18." https://www.nature.com/articles/ncomm...

More papers on LIG: https://scholar.google.com/scholar?as...

0:00 Intro
0:48 Graphene
1:51 Laser Induced Graphene
3:07 Supercap structure
4:12 Expected voltage
4:36 Parallel plate capacitance vs Electrostatic doublelayer
6:05 Stacking kapton to increase capacitance
7:04 Adding electrolyte and watching capacitance increase
7:37 Validating the capacitance meter
9:10 Low voltage, hightemperature heater setup