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https://www.thedrive.com/news/honda-solid-state-batteries-will-offer-same-energy-density-at-half-the-weight

I think this statement in the article is not correct though:

If the solid-state battery tech is twice as energy dense vs the conventional tech used today, you would need a 200kWh battery pack to push the same car 600mi instead of 300mi.
The battery would have the same volume and weight, but pack twice the energy. Thus achieving twice the range vs a conventional li-ion battery. Or they would have to halve the weight of the vehicle, or double the motor's efficiency.
But a 100kWh battery pack, no...

The Crucial Tech That Made Toyota’s Hybrid Revolution Possible

These days, the Toyota Hybrid System doesn't get a lot of love. With our rapid move towards electrification, much more emphasis has been placed on full battery-electric vehicles (BEVs) and to a lesser extent, plug-in hybrid electric vehicles (PHEVs). Hell, in America, you can get a tax credit on a number of BEVs and PHEVs, but not any conventional hybrids. Toyota's hybrid system is old news, though there's a case to be made for its future.

That seems to be the claim;

Tesla supplier CATL unveils battery that can add up to 400km of range in 10 minutes | TechCrunch
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