"A battery’s capacity can be measured by its specific energy, which is the amount of energy that can be stored by weight. Li-ion batteries with liquid electrolytes presently available on the market tend to top out around 300Wh/kg. Completely solid-state batteries might be able to reach 600Wh/kg or beyond."

#TheEconomist #SpecificEnergy

https://www.economist.com/science-and-technology/2023/08/23/superbatteries-will-transform-the-performance-of-evs