Battery cooling academic paper

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Dan007a
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Battery cooling academic paper

Post by Dan007a » Tue, 13 Aug 2019, 04:33


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Richo
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Re: Battery cooling academic paper

Post by Richo » Tue, 13 Aug 2019, 12:53

Aggressive cycling of cylindrical cells in Hybrids.
Then using heat pipes to cool them.

First world problems...

Jaguar land rover supplied the cells.
Collaborated with Thermacore https://www.boydcorp.com/thermal/two-phase-cooling.html

It looks like they were pretty thorough.
But I question why they were doing it in the first place.

And which battery manufacturer would take up putting the heat pipe in the battery core.
So the short answer is NO but the long answer is YES.
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Dan007a
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Re: Battery cooling academic paper

Post by Dan007a » Sun, 18 Aug 2019, 19:57

Bit more practical design in this paper
https://link.springer.com/article/10.10 ... 018-0284-6

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Richo
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Re: Battery cooling academic paper

Post by Richo » Mon, 19 Aug 2019, 13:10

In most cases this isn't an issue.
Only for hybrids pushing tiny battery packs to their limits.

Heat pipes and PCM all sound quite expensive.
I'd want to see a comparison over traditional cooling spreader plates or thin water cooled plates.

Image
So the short answer is NO but the long answer is YES.
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francisco.shi
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Re: Battery cooling academic paper

Post by francisco.shi » Thu, 22 Aug 2019, 06:30

All these papers and experiments look great but none of them look practical. Either would be too heavy or too big and will not fit in the car.

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Richo
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Re: Battery cooling academic paper

Post by Richo » Thu, 22 Aug 2019, 12:18

My concern is where is the "cooling" coming from.
45 Degrees in the shade.
55 Degrees in the sun.
Just blowing hot air around has its limits.
So the short answer is NO but the long answer is YES.
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T1 Terry
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Re: Battery cooling academic paper

Post by T1 Terry » Thu, 22 Aug 2019, 12:54

Wind chill across pure water can remove a lot of heat because pure water can transfer 3 times the heat energy of air, so only small narrow tubes needed to move the heat away from the cells. Water looses a lot of it's cooling efficiency once it is mixed with anti freeze or corrosion inhibitors. Mixed with up to 50% ethanol (metho) improves the wind chill effect, that is why they used it on the intake side of the turbo charged high performance vehicles, to drop the air intake temp to increase the air density and reduce the peak pressure at the point of ignition (detonation).
About the only place this sort of thing would be useful would be maintaining the cell temps at around 60*C for a high performance electric race vehicle or drag car, although in the drag car scenario it would be cooling the cells after the run.
As far as big vehicle battery like a truck battery pack, adding a heat pump to lower the coolant temp would be the way to go, that many cells all packed in together would definitely suffer from cell overheat in the middle part of the pack without it.

T1 Terry
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