This one uses semi-litho oscillating iron cores, but essentially amounts to a fancy capacitor with some extra bells and whistles.

Now this one is the most promising to take on lithium ion. It’s just a giant water wheel. You find a nearby source of swiftly flowing water and it has more battery life than even a nuclear power plant!

This is just a rock, but our scientists are hopeful it can produce a discharge rate faster than an atomic bomb.

None are even close to viable, but they will suck up millions in investor money. Invest today! /s