Eriksen - I Built a 200F Supercapacitor with Copper Foil ⚡ (It Actually Works!)

I Built a 200F Supercapacitor with Copper Foil ⚡ (It Actually Works!)

Colin 2026-09-20 17:47 37 0 Tutorials

Can copper foil replace aluminum in a supercapacitor? I made a DIY electric double-layer supercapacitor using copper current collectors, activated carbon, graphite, paper, and NaOH electrolyte. It reached around 200F and even ran a small motor. Simple build, surprising results!

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I Built a 200F Supercapacitor with Copper Foil ⚡ (It Actually Works!)

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