SeaGeo
Well-Known Member
- Thread starter
- #61
Welcome to the "we would like more than 200kw in a premium 2022 vehicle please" club.This is the biggest factor and limitation with a 400V-450V architecture.
Electrify America, the largest 350kW charging network in the US is limited to 500amps. With a 400V battery, the max charging rate is 200kW. This is why companies like Porsche and Lucid are using 800/900V packs which allow for a higher charging speed (270kW+) while drawing less than 500amps (the limit of the charger).
So even if the R1T/R1S can handle a higher charging speed, the chargers themselves might be the limiting factor. Which is a bummer. A 200kW limit with a 135kWh+ pack is relatively slow compared to some of the other modern EVs. That's 0-50% in 20 minutes under perfect condition with no charging losses, and maintaining 200kW for the entire 20 minutes. Again that's not bad, but we have cars like the Taycan, Ioniq 5, and Lucid going from 0-80% in about the same amount of time.
There's a patent or IP thread floating around here that you should be able to find pretty easily. He's been storing most of their patent applications in one thread.Do you know where the patent for this is published? It sounds like the difference between wiring 2 1.5v batteries in parallel to double the amperage vs in series to double the voltage to 3v. Obviously this battery pack has hundreds of tiny batteries so I am wondering if there is some trickery in the HW that can change the power flow dynamically
That being said, I think K and I think it's prudent to assume Rivian isn't using it with the first R1 vehicles. Hence my post pointing out the max charging rate listed in the EPA docs. Rivian has been very inconsistent in the messaging, but all of the formal documentation (s-1 and EPA) says the current vehicles are limited to about 200kw.
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