4 ms·
They have low losses when storing power, but power has to be stored in the magnetic field. They have a limit on acceptable magnetic field strength called the cr
by mminer237 3y ago
They have low losses when storing power, but power has to be stored in the magnetic field. They have a limit on acceptable magnetic field strength called the critical field though, above which it stops being a superconductor and bad things™ happen. Current SMES systems have an energy density of about ¹⁄₅₀th of current Li-ion batteries.
- vagab0nd 3y agoYou are right about the energy density and limitations. I was more focused on the fast rate of storage and retrieval.
- therein 3y agoWe already have incredible supercapacitors. https://www.eaton.com/gb/en-gb/catalog/electronic-components/xl60-supercapacitor.html https://www.eaton.com/gb/en-gb/catalog/electronic-components... I have 4 at home and blows people's minds when you melt a wire with it. Incredible rapid current delivery.
- XorNot 3y agoThey don't store any meaningful amount of electricity (which is why they haven't supplanted Li-Ion batteries for power tools) and more importantly they have a cycle-life - they degrade from usage (source: my wife works for a supercapacitor manufacturer). You also get losses from practical usage - i.e. no one can build a 3V supercapacitor that has decent endurance (you can totally build one which will work, but you're rating it knowing that every cycle is damaging it).