|
|
 |
|
 |
|
 |
| Ev Archive for February 1999 |
 |
| 1347 messages, last added Wed Aug 08 18:44:27 2001 |
[Date Index][Thread Index]
Re: BEST VEHICLE FOR DISTAN
> From: eric.chang@chrysalis.org
>
> >I have seen reports that at a production rate of 20,000 units the price
> >could come down to $7,000 a pack. IF these packs last for 100,000 miles
>
> If the prices are being subsidized as much as people say, it will
> take a long time for "market forces" to drive quantities up to this
> level.
Are we really that far off the curve?
There are at least 1,000 NiMH equipped vehicles already
placed on the road, despite the notable reluctance of their
manufacturers... >300 EVpluses, >600 RAV4-EVs, >100
Ranger EVs, >300 EV1's (comming someday)...
Rick Ostrov, of GM's EV1 program, indicated at a
recent EV1 owners meeting that while the Ovonic
packs they are putting into the EV1's this year
will have @70 wh/kg, the almost-ready "Ovonic-2"
packs are at 90 wh/kg, and the "O-3" packs that
should be out within a couple years deliver a
staggering 120 wh/kg...that's signficantly higher
than Sony's Lithium Ion battery.
Volumetric energy density, as well as specific power
(note the hybrids that use NiMH packs) is also increasing.
Ostrov indicated that a certain advanced PbA
battery they are looking into delivers an amazing
56 wh/kg at the D/3 rate. I was blown away by that!
We're talking about nearly double what an average
Delphi, or an average Concorde, or average flooded
puts out!
Imagine a NiMH battery pack that weighs a mere
100 kG (@221 lbs), with 12 kwh of capacity...
a combo for a truly svelte little EV with 90+ miles.
Or a bigger, distance EV that goes 250 miles while
only needing an 800 lb pack.
I propose that, barring an abrupt cut in the petroleum
supply, NiMH is by far the best (perhaps only) chance
for a widely acceptable EV.
/wk
 |
 |
|
|