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Supercapacitors have several orders of magnitude less energy density. What might make more sense is a modular battery.
by KennyBlanken 4y ago
Supercapacitors have several orders of magnitude less energy density.
What might make more sense is a modular battery.
- elihu 4y agoThat is true, but they also have several orders of magnitude higher power density. Maybe the battery technology to make this work just doesn't exist -- I'm imagining something that can absorb enough energy in, say, ten seconds or less, to make it around the track a couple times. Lithium ion can store huge amounts of energy, but charge times are slow. Capacitors can charge very quickly, but have very little capacity. I don't know if there's some technology that splits the difference. Lithium Titanate? Solid state batteries?
- Dylan16807 4y agoThe comment said power density, and supercapacitors have almost 10x the power density. The energy density hit is between 1 and 2 orders of magnitude, not several. You could run a lap on supercapacitors alone. Or make it so most of the power comes from supercaps so that there's a bit more endurance and running low is a bit less harsh.