A Staggering 19x Energy Jump in Capacitors May Be the Beginning of the End for Batteries

floofloof@lemmy.ca to Technology@lemmy.ml – 376 points –
A Staggering 19x Energy Jump in Capacitors May Be the Beginning of the End for Batteries
popularmechanics.com
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Electrolytic capacitors use the chemistry to make a very high dielectric allowing the plates to get very close and increase the capacitance and decrease the size.

A cell in a battery is a capacitor then converts the charge on the plates into chemical energy and vice versa allowing much more energy storage and a flat operating range as the plates charge is replenished by the chemical reaction.

This article doesn't go into details but it sounds like the breakthrough is a much better dialectic then storing energy in a chemical reaction.