3 ms·
We’re not talking about charging existing batteries but superconductors where you just “trap” large amounts of electricity in the superconductor for future use.
by soligern 3y ago
We’re not talking about charging existing batteries but superconductors where you just “trap” large amounts of electricity in the superconductor for future use.
- ben_w 3y agoUnfortunately magnets put forces on themselves, which means you’re limited to storing up to about as much energy as it would take to break the thing making the field; or, to put it another way, it’s about the same range of energy densities as springs or rubber bands. Earlier discussion: https://news.ycombinator.com/item?id=36954783 https://news.ycombinator.com/item?id=36954783
- eternityforest 3y agoDoes that mean you would get equal(but probably insanely more dangerous) performance with a giant miles long spring instead of the proposed superconducting loops?
- raducu 3y agoDo you mean superconductors create super capacitors, or how do you want to trap the charge? Or store in coils, as "magnetic energy"(forgot the name for it)