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CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

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Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#21

Post by pedrocr »

rkangel wrote: post #18
beardyw wrote: post #13

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?

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.

Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#23

Post by FooBarWidget »

donny2018 wrote: post #19
boeingUH60 wrote: post #15

Earlier quoted context omitted.

Founded in 2011. It’s mind-bending how they grew so fast..

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.

Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#26

Post by londons_explore »

hliyan wrote: post #4

"Shenxing leverages the super electronic network cathode technology and fully nano-crystallized LFP cathode material to create a super-electronic network, which facilitates the extraction of lithium ions and the rapid response to charging signals." Are these actual technical terms, or some sort of marketing speak?

I suspect it is marketing speak that has been translated to english by a non-technical translator.

Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#27

Post by jillesvangurp »

jacobp100 wrote: post #8
jillesvangurp wrote: post #7

Earlier quoted context omitted.

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…

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 or other valuable materials. For mass production, cost is king. And with faster charging speeds, range becomes less important.

Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#28

Post by londons_explore »

beardyw wrote: post #13

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?

It could not.

However, a household supply could supply substantially more with smarter software. Specifically, currently we rate power supplies with a decent safety margin for worst-case conditions.

However, your '100 amp' power supply can probably supply 200 amps on a freezing cold day (which helps keep cables cool). It can probably supply more than rated if your neighbours aren't using much (since your and your neighbours power connections may share cables).

If you or your neighbours have rooftop solar, thats power going the other direction, which cancels out some power use - allowing you to charge even faster.

If software could take these factors into account, we could get a lot more power to where it needs to be. Currently rules don't allow such things though.

Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#29

Post by josu »

I found the concept of Grice's Maxims the other day, and it feels very relevant. Everyone is getting triggered because this fails the maxim of relation.

>Grice's four maxims of conversation, called the Gricean maxims—quantity, quality, relation, and manner.

>Be relevant — i.e., one should ensure that all the information they provide is relevant to the current exchange; therefore omitting any irrelevant information.

https://en.wikipedia.org/wiki/Cooperative_principle

Re: CATL (Tesla Supplier) Launches Superfast Charging Battery (10 min)

#30

Post by prisoner3986 »

j16sdiz wrote: post #11

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?
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