[DAF78]

The acceleration in Europe is more important than the range. They took 2 battery cell packs out from 32 to 30 to reduce the weight in favor of acceleration with 7% less range. The European and Oceanic top version with 225kw accelerates in 5.2 sec from 0-100km/h. In North America the range is more important and they use a battery with 32 battery cell packs, which is heavier, but to compensate the loss of acceleration they get in the top version 239kw.

Is this speculation or do you actually know this to be true? If that is the reason I think it's a really poor decision. Every car brand is competing with Tesla and range is what everyone is talking about. What difference do two cells really make on a car that weighs 2000kg anyway? Who in their right mind would trade 7% longer range for 0.1 seconds on a car that isn't a supercar anyway? The Ioniq is of course a wonderful car but that is just plain stupid.

 

[Jaz]

Is this speculation or do you actually know this to be true? If that is the reason I think it's a really poor decision. Every car brand is competing with Tesla and range is what everyone is talking about. What difference do two cells really make on a car that weighs 2000kg anyway? Who in their right mind would trade 7% longer range for 0.1 seconds on a car that isn't a supercar anyway? The Ioniq is of course a wonderful car but that is just plain stupid.

This is true, this is not a speculation. To get the same acceleration in NA, they have to use 20hp more.
Fully equipped the AWD version is already at 2100kg. It is also a matter of handling too, which is more important in Europe.

 

[giora]

Is this speculation or do you actually know this to be true? If that is the reason I think it's a really poor decision. Every car brand is competing with Tesla and range is what everyone is talking about. What difference do two cells really make on a car that weighs 2000kg anyway? Who in their right mind would trade 7% longer range for 0.1 seconds on a car that isn't a supercar anyway? The Ioniq is of course a wonderful car but that is just plain stupid.

The European RWD 19" wheels gets ~300 miles of range on WLTP cycle. I think the reason for slightly bigger battery for the US is targeting the 'magic' 300 miles on EPA cycle too.

 

[giora]

I have a Keba 22KW home charger that I used for our Renault Zoe and that can be reconfigured to 11KW is necessary...

No reconfiguration is required in your home EVSE, the Ioniq 5 will be charged at 11kW as this is the rated power of the on-board charger.
Configuration of the EVSE to lower power is only required if the upstream infrastructure in your home is not rated to accept 22kW and it's not your case.

 

[ev_chris]

@Jaz Awesome charts and stuff. How did you come by this information about the cell arrangement, number of modules, nominal voltage, etc?
With the extra two modules, how much more does a 32 module car weigh than a 30 module car?

 

[Zuinige Rijder]

See here a video with the IONIQ 5 battery with the cover removed.

. You see that the 6 modules are not at the end, the others are 8.

 

[ArizonaJon]

See here a video with the IONIQ 5 battery with the cover removed.

. You see that the 6 modules are not at the end, the others are 8.

Thanks. I turned on CC with translation to English. However, the translation was very poor.
I counted 32 spaces total with 30 used for 72.6 kWh. So if I ratio to 32, the max would be 77.44 kWh, what we are expecting to get in the US.

 

[Jaz]

Opening battery 2 videos:

aftermarket protection of the battery for all E-GMP versions :

 

[djgras]

About possible software update for battery pre-heating ...

Hyundai Norway confirms upgrade regarding battery...

https://motor.no/bil/hyundai-ioniq-5-far-forvarme-av-batteri/214974 Article in Norwegian, but in short terms it states; "A new update will come in the first half of 2022 that enables battery pre-heating run by the navigation. This means that when you select a charger in the cars navigation the...

www.ioniqforum.com

 

[djgras]

 

[Jaz]

I already have seen it on different sites and videos. These are 2021 show cars with around 1000 miles on them, are sold for $60000 and are fitted with 2017 (4-year-old batteries), the Tesla site says the maximum range can be dropped by up to 12%, because of the battery age. Personally, I find this a scandal, certainly if you have to pay nearly the full price, the best of your battery is already gone. Tesla has a lot of these not serious practices, that should legally not be allowed in Europe.

 

[djgras]

Are cylindrical cells the reason Lucid, Tesla, and Rivian lead in range?

Top executives of Lucid and Tesla point to clear advantages of cylindrical cells—including larger 4680 ones—in their EV battery packs, and the vehicles using them are range leaders. Is this coincidental?

www.greencarreports.com

 

[djgras]

Hyundai taps CATL and SK Innovation to supply more batteries for E-GMP

Hyundai Motor group has announced that it has chosen CATL and SK Innovation to supply the third batch of batteries for its E-GMP Platform.

electrek.co

 

[Restyler]

@djgras That report is almost a year old

 

[djgras]

 

[alexw]

IONIQ 5 - E-GMP - all the BATTERY PACKS
I wanted to give you a complete overview of the different IONIQ 5 Battery configurations.
I made a Battery data table and pictures how the Battery is assembled

View attachment 35075


View attachment 35071
View attachment 35072
View attachment 35073

How did you land on gross/net of 80/77.4kWh? All your other numbers agree with info I’ve found, but I’ve never seen anything to settle whether 77.4 is gross or net - only lots of evidence that the pack does have a small buffer top and bottom.

Even if we snap the nominal cell voltage from the derated-looking 3.63V to a typical 3.7V, 3.7*111.2*192= about 79kWh, and I think that’s the best evidence I know of that 77.4 is net and gross is larger.

 

[Zuinige Rijder]

It looks like the advertised kWh for batteries is the gross kWh and not the net kWh.

I did further research and many sources say 72.6 kWh net but also many sources say this is the gross capacity.

This video shows the SK Li-ion polymer NMC prismatic pocket cell.

Screenshot of this video....

It concerns the "SK 55A" with 55.6 Ah (02YCE36 E556).
See the detailed specs here.....

Nominal capacity: 55.6 Ah
Rated voltage: 3.65V-3.7V
Lifespan: more than 2000 times
End-of-charge voltage: 4.2 V
End-discharge voltage: 2.75 V
Cell weight: 740 ± 15 g
Cell Size: 355*100*9.9mm
Lifespan: ≥2000
max. continuous discharge current: 110A (2C)
max. pulse discharge current: 165A (3C)
Standard Discharge Current: 55A
Energy density: 203.5Wh/kg

For the 72.6 kWh battery of Europe model 2022:
72.6 kWh / 30 modules / 12 (SK 55A) / 55 Ah = 3.6667 V

So the 72.6 kWh seems to be the nominal value.
Good to see that the number of cycles is greater than 2000. In other words, you can drive it 72.6 kWh x 5 km/kWh x 2000 cycles = 726000 km, up to 70% capacity.

As far as I know the nominal value is the gross value. Or not?

 

[alexw]

It looks like the advertised kWh for batteries is the gross kWh and not the net kWh.

I did further research and many sources say 72.6 kWh net but also many sources say this is the gross capacity.

This video shows the SK Li-ion polymer NMC prismatic pocket cell.

Screenshot of this video....
View attachment 46512

It concerns the "SK 55A" with 55.6 Ah (02YCE36 E556).
See the detailed specs here.....

Nominal capacity: 55.6 Ah
Rated voltage: 3.65V-3.7V
Lifespan: more than 2000 times
End-of-charge voltage: 4.2 V
End-discharge voltage: 2.75 V
Cell weight: 740 ± 15 g
Cell Size: 355*100*9.9mm
Lifespan: ≥2000
max. continuous discharge current: 110A (2C)
max. pulse discharge current: 165A (3C)
Standard Discharge Current: 55A
Energy density: 203.5Wh/kg

For the 72.6 kWh battery of Europe model 2022:
72.6 kWh / 30 modules / 12 (SK 55A) / 55 Ah = 3.6667 V

So the 72.6 kWh seems to be the nominal value.
Good to see that the number of cycles is greater than 2000. In other words, you can drive it 72.6 kWh x 5 km/kWh x 2000 cycles = 726000 km, up to 70% capacity.

As far as I know the nominal value is the gross value. Or not?

First off, thanks for bringing in that great info!

I've seen the 55.6 number as well. For the 77.4kWh full size pack, 55.6Ah*3.7V(nom)*192(series)*2(parallel)=79kWh, so 77.4 is 2% less than gross. That's the best evidence I'm aware of that the stated capacities are net, not gross. But as you point out, that's assuming the cell nominal voltage is actually 3.7 (as most are) and not 3.65 (lower of the range stated above), which accounts for the 2% discrepancy leading to the conclusion 77.4 is gross.

In short, even this info is missing the critical specs (rated cell capacity in Wh) to say conclusively whether the stated pack capacity is net or gross.

That said, the SOC (gauge) vs SOC (BMS) PID discrepancy is a couple percent at both the high and low end, suggesting that the net-gross disparity is more than just 2%, suggesting that 3.65 is the true nominal cell voltage, 203Wh is the true nominal cell capacity, and 77.4 is the true gross pack capacity, and usable is less. It's still so close it's hard to say though.

 

[Mikael48]

That said, the SOC (gauge) vs SOC (BMS) PID discrepancy is a couple percent at both the high and low end, suggesting that the net-gross disparity is more than just 2%,

Probably the Remaining Energy (kWh) sensor in Car Scanner app can shed some light on the nominal/usable capacity and battery degradation, if someone is ready to run the battery down to 0% SOC.

 

[alexw]

Probably the Remaining Energy (kWh) sensor in Car Scanner app can shed some light on the nominal/usable capacity and battery degradation, if someone is ready to run the battery down to 0% SOC.

All it can tell you is that actual and available capacity are different. One way is because "SOC(BMS)" and "SOC" are different. Another is because the single-cell voltage at full charge is 4.1 instead of 4.2V. Those don't resolve the question of which number 77.4 is though. Any charge/discharge test will end up with a margin of error on the same order as the true difference between those two numbers anyway. The single most accurate way to directly measure would be to charge up to 100%, drive continuously until you hit 0%, and see what the car says total energy consumed for that trip was. But even that's likely got comparable error to the difference.