>Lithium-ion batteries are too expensive... Molten salt is a more efficient solution Well, I just spent an hour bringing a pound of salt to a nice boil. The I

>Lithium-ion batteries are too expensive... Molten salt is a more efficient solution Well, I just spent an hour bringing a pound of salt to a nice boil. The I tossed in my phone, which was at 10% battery. It did not recharge.