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There seems to be no indication of the power demands of charging at this rate. I don't have the figures to do the maths but I suspect a normal household supply could not support this. Anyone?
But you don’t need to have a 10 minute charger at home. At home overnight charging is completely fine.
There seems to be no indication of the power demands of charging at this rate. I don't have the figures to do the maths but I suspect a normal household supply could not support this. Anyone?
I'm not an engineer but I attempted to do some napkin math in my comment in a previous topic about this CATL battery. I'll copy/paste: Assuming 400km worth of charge needs maybe 60 kw/h of energy, to deliver that amount of energy in 10 minutes would require at least 360kw charger. Charging just a few cars simultaneously will require megawatts of power. I wonder what are the implications in terms of city infrastructur…
The issue at the moment is that grids in a lot of places in the world can't keep up with the connection requests, and this is indeed mainly due to not being able to upgrade transmission capacity fast enough.
Earlier quoted context omitted.
I also saw that one being incredibly useful for EVs, as you could make the car weigh less and so wouldn’t need as high kWh storage
Nice for expensive sports cars where cost doesn't matter. But everything else competes on cost, not weight. These high density batteries are going to be very premium priced for quite some time to come. Plenty of customers willing to pay that premium. High volume production of that things is likely some time away. Catl also produces some sodium ion batteries. They have even less density than LFP but contain no lithium…
But this is different from the 500Wh/kg Battery that was announced around 3 month ago right [0]? Has something happened in this regard? [0] https://news.ycombinator.com/item?id=35649935
Yes, different market segments. That one is aimed at the aviation industry where weight matters a lot and is worth a lot to customers. LFP is technically a bit less energy dense than some other chemistries but it has cost as its big advantage which is why it is the go to choice for a lot of the mass produced mid range EVs. A cheap fast charging battery is going to be quite nice as it makes fast charging stops less di…
Why the "(Tesla Supplier)" remark, which is not in the original article? CATL is the largest battery manufacturing company, supplying battery for almost every high-end devices.
Because there is still the myth that Tesla has a secret sauce in their battery chemistry, and edge, and is not just using Pana, CATL and perhaps other vendor's cells?
> super electronic network cathode > fully nano-crystallized LFP cathode material > second-generation fast ion ring technology > superconducting electrolyte formula Can someone confirm those are proper names of some recent breakthroughs in LiFePO4 manufacturing or just some marketing technobabble?
If CATL had a roomtemperature superconducting electrolyte you'd know ;)
Probably exacerbated by internal/non-common terminology and maybe questionable translation.
Earlier quoted context omitted.
They say 4C and a Model 3 battery pack is apparently 60kWh so that would be 240kW. That's ignoring inefficiency though, so we're talking significant fractions of a megawatt to charge one car.
250 to 350kW chargers are already in common use. And batteries that charge this fast too. What's news here is that they've done it on an LFP battery which is the cheaper kind of lithium chemistry.
Earlier quoted context omitted.
Limitless government subsidies can do wonders.
Definitely not limitless. Subsidies are only provided to get an industry to grow up. As they grow up and can increasingly fend for themselves, subsidies become progressively smaller. There are a ton of other sectors where subsidies don't help nearly as much as the govt hopes. Until the US sanctions hit, subsidies for the semiconductor industry only had very limited effect.
Probably some sectors are easier to grow if it only involves copying something that already exists, and outscaling/outpricing everyone else. Then this is (in most cases) is a purely money+organization problem.
But if it isn’t just copying/outscaling/outpricing issue, like replicating ASML’s EUV lithography, then yes, we have a problem.
Earlier quoted context omitted.
I'm not an engineer but I attempted to do some napkin math in my comment in a previous topic about this CATL battery. I'll copy/paste: Assuming 400km worth of charge needs maybe 60 kw/h of energy, to deliver that amount of energy in 10 minutes would require at least 360kw charger. Charging just a few cars simultaneously will require megawatts of power. I wonder what are the implications in terms of city infrastructur…
V3 Superchargers are 250 kW per car with 1MW power cabinets. The issue at the moment is that grids in a lot of places in the world can't keep up with the connection requests, and this is indeed mainly due to not being able to upgrade transmission capacity fast enough.
Reminds me of "the duck curve" where the worry was that gas plants couldn't ramp output fast enough. There were many exciting high tech solutions but one solution was just to ask the gas plants if they could ramp faster. Turns out they could, they'd just not needed to before.
Seems to be a recurring pattern: you can hyperventilate about how something is hard or impossible or you can ask some engineers if they can improve things. If you get really desperate you can pay people for coming up with solutions and create a market. Of course that all assumes you actually want to solve the problem.
edit: recent third example. Grid connection queues in England had zombie projects in them because you got fined if you left the queue. They had an amnesty and a bunch off them dropped out moving up dates for real projects.