Comment on YSK: You can make supercapacitors out of cement, water and carbon black
homesweethomeMrL@lemmy.world 1 week agoCement is also not a good material, cement production accounts for 4-8% of all CO2 production.
I thought that was concrete?
SchmidtGenetics@lemmy.world 1 week ago
Cement is one ingredient in concrete, the other is sand and aggregate, which just require access to really.