alt Hacker NewsNeither article really explains how they are able to charge this fast, aside from “vertical integration” and slightly increased energy density in the battery design. No real details on the charging technology itself.
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BYD did not go to specifics about their blade 2.0 battery that enables this, but there has to be battery chemistry and manufacturing advancements. CATL shared some details on their 12C LFP batteries before, they lowered li-ion mobility resistance, increased how the anode and cathode can accept more li-ions at faster rates. Another improvement for blade 2.0 battery is the charge curve is much better. 80 - 90 % can have much higher charging rates.
Is this even as fast as the existing CATL tech? It seems to just be where batteries are heading through a bunch of small improvements over time.
Sounds like the trick is to use 1.5MW chargers. I guess that'll do it. I suppose the question is how they handel this thermally.