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Samsung’s 20-year-life EV battery runs 600 miles on 9-minute charge
(interestingengineering.com)
this post was submitted on 02 Aug 2024
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I posted about this a week ago. The battery pack will likely be around 150kWh (Nio has a solid state battery car that will be produced that can do 577 miles on a 150kWh battery). The 9 minute charge is from 8-80% (according to the marketing material I dug up) so it is 432 miles of charge in 9 minutes. Considering fast charge costs like $0.50/kWh currently, I'm guessing most people will not be charging up that entire portion unless they are planning on driving for a long fucking time...after they have already been driving for 9-10 hours.
But that charge rate would have to come from a charger that can output much higher than current ones. The highest output you are likely to find is 350kW which would take 18 minutes to charge that 108kWh. So while this battery can charge that fast, you are not likely to be able to find a charger with that high of output for a few years. Still great to be able to get a couple hundred miles of range in 9 minutes. Solid state batteries supposedly have a quicker ramp up period and can take the full output for a higher percentage of the battery.
There are already some charging stations in Germany offering 400kW. Still 16 minutes though. 800kW is just insane. CCS is currently capped at 500kW, so you would need MCS which is planned for trucks.
If you do the math, the common standard plugs simply can't do the charging rates that would be required here. You'd need a whole new plug design on top of all new chargers.
It's also silly and unnecessary. We should focus on getting more chargers out there, not chasing a fast charge time goal. If you plan your route out a bit, 20-30 minute charge times every 2-4 hours are fine for the vast majority of people.
https://wumpus-cave.net/post/2024/03/2024-03-30-ten-minute-ev-charging-wont-happen/index.html
According to this: https://en.m.wikipedia.org/wiki/IEC_62196 the standard was updated in 2022 to support up to 1500V and 800A. If this can be achieved simultaneously it would be 1.2MW.
Whether it is necessary or realistic is another thing, but seems to be achievable without even changing the plug.