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CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

arstechnica.com

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Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#31

Post by BackacheDescent »

baq wrote: post #22
phh wrote: post #20

Earlier quoted context omitted.

TFA says "After 1,000 fast charges, the battery should retain more than 90 percent of its original state of charge, the company said." I can't really judge whether 1000 charges is a reasonable target for a car, though i think that 1000 fast charges is reasonable. It should probably be able to push to 5000 slow charges and 500 fast charges, which should fit a lot of use-cases.

1000 charges 10-80% for a passenger car at 300-400 km per charge is 300 000 - 400 000 km of fast charge driving. I'd say it's perfectly fine for most people?

Did you miss a 0?

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#32

Post by beej71 »

jcsager wrote: post #11
sandworm101 wrote: post #8

> have a minute to plug in? Still sufficient to get from 10 to 35 percent state of charge. Scaling that to something the size of an EV pack will require one massive cable/connector. Call it 5kw/h in 1/60 hours, thats 3000kw, at 700v thats still roughly 4000 amps. (Please correct my head math.) Charging one car could suck up more power than an entire neighbourhood. Say four or five chargers operating at once ... every…

Fjord ferries in Norway are up around that sort of charge rate, but for 30 mins instead of 5. That kind of battery charging performance is pure marketing until our local LV supply network is uplifted!

I was so impressed by this when I saw it. Big-ass cable. :) Great ferry trip.

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#33

Post by newyankee »

c9lgPZqHNGdC1V1 wrote: post #3
tristanj wrote: post #2

I did not expect Nio's 5-minute battery swap technology to become obsolete this soon.

If anything, Nio battery swap stations would allow car users to swap to newer types of battery as they become available. I say this knowing Nio is one of CATL's most important partners[1]. [1] https://eletric-vehicles.com/catl/catl-calls-nio-an-irreplac...

In a well designed urban environment where cars have space for 2-3 modular batteries with swapping capabilities, I see no reason why taxis etc. need to carry battery payload > 150 km of range needed for local use, which would mean better fuel efficiency as well. Battery swapping done right is integral to this

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#34

Post by baq »

BackacheDescent wrote: post #31
baq wrote: post #22

Earlier quoted context omitted.

1000 charges 10-80% for a passenger car at 300-400 km per charge is 300 000 - 400 000 km of fast charge driving. I'd say it's perfectly fine for most people?

Did you miss a 0?

I have! Thanks

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#35

Post by pjc50 »

DennisP wrote: post #9
c9lgPZqHNGdC1V1 wrote: post #3

Earlier quoted context omitted.

If anything, Nio battery swap stations would allow car users to swap to newer types of battery as they become available. I say this knowing Nio is one of CATL's most important partners[1]. [1] https://eletric-vehicles.com/catl/catl-calls-nio-an-irreplac...

That'd be an interesting situation. They'd probably replace their fleet of batteries gradually, so with each swap sometimes you'd get upgraded, sometimes downgraded. Your range and home charging curves would change with the batteries, and Nio would have to update the battery management software when it puts in a different battery type. But over time, you'd get upgraded on average without having to pay for a new batte…

This is in fact the main argument to me why swaps would never work at all, economically: the "state" of the battery is a significant part of the value of the car. Being swapped to a worse one makes you several thousand dollars worse off.

It only works in a leasing scenario, and everyone hates those.

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#36

Post by pjc50 »

bayesianbot wrote: post #7
perching_aix wrote: post #4

Saw this yesterday, did not expect the competition around Donut's batteries to heat up this much and this quickly. Even the gravimetric density is fairly close, CATL's claim is 350 Wh/kg, compared to Donut's 400 Wh/kg. The safety and durability (plus no lithium) prospects of Donut's V1 battery are still big though (if the thing is actually real).

Feels quite clear Donut doesn't have much - no meaningful new tests released for many weeks already and some executive of Nordic Nano sued Donut Lab and said their claims were misleading. I haven't really followed that closely myself, but I've noticed the people who I saw defending Donut before have gone really quiet about it lately.

It seems clear to me that Donut are a vaporware company with hardly any customers, and CATL are the largest battery company in the world.

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#37

Post by rcxdude »

tristanj wrote: post #2

I did not expect Nio's 5-minute battery swap technology to become obsolete this soon.

Swapping does help reduce the high peak power demands that fast charging has. There's limited places where you can get the infrastructure to install a bank of chargers capable of this kind of speed (though, one potential approach is having a local block of batteries near the charger, but you are then paying the efficiency cost of another battery round-trip, and the cost of the batteries which will get a lot of wear and tear themselves)

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#39

Post by [deleted] »

SideburnsOfDoom wrote: post #29
xbmcuser wrote: post #15

Earlier quoted context omitted.

the life span stat with the current battery tech is mostly useless for a normal car. 300 mile range most people will need to top up 2 times a week 100 times a year 1000 times in 10 years. The battery degradation is not that bad in the first place.

> most people will need to top up 2 times a week 100 times a year 1000 times in 10 years. When it comes to as-fast-as-possible charging, I think you can divide that number by at least 10. Slow charging while parked overnight or during the day should still be the most common case by far for most users. Very fast charging is important for road trips, but it is not the usual case.

[deleted]

Re: CATL's new LFP battery can charge from 10 to 98% in less than 7 minutes

#40

Post by NetMageSCW »

rcxdude wrote: post #37
tristanj wrote: post #2

I did not expect Nio's 5-minute battery swap technology to become obsolete this soon.

Swapping does help reduce the high peak power demands that fast charging has. There's limited places where you can get the infrastructure to install a bank of chargers capable of this kind of speed (though, one potential approach is having a local block of batteries near the charger, but you are then paying the efficiency cost of another battery round-trip, and the cost of the batteries which will get a lot of wear a…

But if you need batteries that gives you the opportunity to install solar and reduce your costs more than the efficiency hit.
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