A123 ready to go 23kW packs

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photomac
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A123 ready to go 23kW packs

Post by photomac »

Mmmmm? - could be a quick solution

http://www.a123systems.com/products-sys ... e-pack.htm


Note - they are working on a 110kW version!
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A123 ready to go 23kW packs

Post by coulomb »

photomac wrote: Mmmmm? - could be a quick solution

http://www.a123systems.com/products-sys ... e-pack.htm
Interesting. These are made of these "energy modules":
http://www.a123systems.com/products-modules-energy.htm

They're 3C continuous and 10 C peak, so designed to store a lot of energy, but not release it at high power. So this is a 23 kWh pack, with about the same C ratings as a Thunder Sky pack from 2007. Good for a long range vehicle with modest performance.
Note - they are working on a 110kW version!

Right. So this one is designed for high power, made from "power" modules, but limited energy storage capacity. So this is a 110 kW peak power pack - but you can only draw the 110 kW for a small fraction of an hour.

Good for a racing car with modest range.

[ Edit: 1997 -> 2007 ]
Last edited by coulomb on Sat, 14 Jan 2012, 12:26, edited 1 time in total.
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A123 ready to go 23kW packs

Post by weber »

Well done Coulomb, pointing out which is kWh and which is kW. So apparently one is
23 kWh, 69 kW continuous (3C), 230 kW for 10 seconds (10C) and the other is
3.5 kWh 110 kW (30C) presumably designed for hybrids.
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A123 ready to go 23kW packs

Post by coulomb »

photomac wrote: Mmmmm? - could be a quick solution

I meant to mention in my post above that large, pre-made packs could be great to design a new car around, but when converting an existing car, as we are usually forced to, we'll often find it hard to fit with all the existing constraints.

So great for OEMs, not so great for us, unless we are fairly lucky. I suppose a direct drive conversion where the engine bay is basically all available (so the motor happens to fit in the transmission tunnel) could adapt almost anything.
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Patching PIP-4048/5048 inverter-chargers.
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A123 ready to go 23kW packs

Post by Tritium_James »

That first pack would be a great fit for most cars, because the 10C rating is for 10 seconds, which is all pretty much anyone needs for normal driving. Note that this is not comparable to the '10C' rating on the chinese cells, which is for 1ms or something stupid...
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A123 ready to go 23kW packs

Post by Wellsey »

You hit the nail on the head Coulomb,

Off their web site: " Packs are not available for consumer use or aftermarket conversion kits"

Looks like we'll have to wait years to get our hands on second hand versions of these Image
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