JoeS
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Joined: Thu Dec 15, 2011 5:47 am
Location: Silicon Valley, California

Re: Traction Battery/Cell Voltages

Sun May 05, 2013 9:34 am

I'm trying to keep track of all our iMiEV traction battery-relevant parameters, and thus am posting a few links here that were mentioned in unrelated threads:

Photo of an individual Cell test by Ben: http://300mpg.org/wp-content/uploads/2013/04/DSC_6387.jpg

White Paper on the GS-Yuasa modules: http://www.gs-yuasa.com/jp/technic/vol5/pdf/05_1_021.pdf

This MSDS sheet talking about our battery chemistry (Lithium-Manganese Dioxide):
http://www.ens.dk/da-DK/KlimaOgCO2/Transport/elbiler/forsoegsordningforelbiler/elbilmodeller/Documents/Batteri%20-%20trillingbiler.pdf
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV

Llecentaur
Posts: 240
Joined: Thu Dec 27, 2012 7:56 am

Re: Traction Battery/Cell Voltages

Sun May 05, 2013 11:30 am

Thank you for this summary.

Then basically, in the best of worlds, we should hope to find in about 5-10 years a "LEV100" battery with similar chemistry or at least similar properties of max voltage, max discharge hoping to have a drop-in upgrade that would give us roughly double the range !

I wonder to which extend the BMS can adapt itself to a different chemistry. I assume three must be some extend of adaptability similar to the capacity of managing a cell which is not working within ideal parameters.

Then I could imagine it would also be possible to reprogram the BMS to adapt to a new cell.

Hope there will be enough iMiev sold throughout the world to justify someone to setup those new features. For the moment, we can continue enjoying this great little car.

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