[ausev] anyone heard of these guys?

[Brian Lasseter]

On Dec 13, 2007 10:13 AM, Chris Robison <chris at chrisrobison.org> wrote:
> Your conclusions are different from what we've seen in our research of
> lithium options so far. I'll try to run some numbers again below, and
> try to approach mathematically what we've seen on a larger scale.
> Hopefully my math and assumptions aren't too far off.

Excellent work Chris.  I was wondering why the comparison looked so
dismal when I ran the numbers.  I figured I was missing something, but
I did not know what.  I wonder if the name Peukert will eventually
become a swear word?

I also agree to your $164 price for the T145.  I was pulling the $100
price from Uve's page, that was my bad.
http://www.geocities.com/CapeCanaveral/lab/8679/battery.html


> "Monetary" energy density:  :o)  (excluding one-time costs)
> T145: $.157/Wh ($164/batt)
> LifeBatt: 1.25Wh/$
> ---
> Lead is 10x to as little as 5x more expensive, depending on price of
> lead battery

While your Specific energy and Volumetric energy density numbers I
concur with, The "Monetary" energy density does not seem to correlate
with the prices on their web page:
http://www.lifebatt.com/LiFeBATT%20Web_4.html

They want $440 per 8 cells ordered, 8 cells weighs 2.872kg, that's
$153.20/kg of batteries.  Dividing $153.20/kg by 80Wh/kg gives you
$1.915/Wh for the raw cells, or 12x the cost of the T145 at $.157/Wh.

If you want the battery management system, which is required to get
the 2 year warranty, then it's $2.350/Wh for the raw cells, or 15x the
cost of the T145 at $.157/Wh.  This, of course, does not even include
the cost of making their cells into a car battery.

Maybe in the quantities that you would need for an electric vehicle
you could get LifeBatt down to 1.25Wh/$.


-- 
TTFN,
Brian "Lasso" Lasseter

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