<div class='quotetop'>QUOTE(Eric Nothman @ Oct 23 2007, 03:24 AM) [snapback]529191[/snapback]</div>

$10k for 20 miles extra EV-range is total BS and misdirection.

20 miles range requires about 4-5 kWh, so they're quoting $2,500 per kWh for lithium-ion when the mass-produced LiCo 18650 cells are being made for wholesale costs of about $300 per kWh. Even low-volume Valence lithium-ion is less than $1,000 per kWh.

<div class='quotetop'>QUOTE(clett @ Oct 23 2007, 03:41 AM) [snapback]529216[/snapback]</div>

interesting article and i fail to understand why they have not released the $10000 option. i would GLADLY do it. heck i paid $14,000 for an EV because i simply got tired of waiting.

<div class='quotetop'>QUOTE(clett @ Oct 23 2007, 06:41 AM) [snapback]529216[/snapback]</div>

If you use 5kWh figure (a fair number at 70 mph) , that's $2,000 per kWh. The pack will probably not be discharged from 100% to 0% to extend the life and the consistency sake of the power output. If we assume 70% usable energy from the pack, that's $1,400 per kWh. If the usable energy is 60%, that's $1,200 per kWh.

What is the life cycle for the cells you quoted? If they don't meet 10 years / 150,000 miles, you'll have to oversize the pack (increase the pack size and discharge less) too.