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A Staggering 19x Energy Jump in Capacitors May Be the Beginning of the End for Batteries (www.popularmechanics.com)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 6 months ago (1 children)

I mean, I wouldn't mind a car with "only" 200km range, but that can charge up to full in just 5 minutes. I use my car just for work 99% of the time anyway, the times I need to go somewhere further away I can easily stop midway to charge, get a coffee in the meantime and then be on my way.

[–] [email protected] 2 points 6 months ago

Unfortunately what's shipping today seems it would offer maybe half that.

For the batteries that were announced this past week, a larger-than-refrigerator-sized cabinet held a capacity of around 15kWh.

Around half the energy density by mass of Lithium batteries, and in the order of a sixth of the density by volume.

Now if only we could come up with a system where your car could be charged while stopped at traffic lights, we might be onto a winner (:

Considering however that the price of sodium is around 1-2% that of lithium, I expect we will see significant R&D and those numbers quickly start to improve.