Re: New battery technology?

[Lonnie Borntreger <ev@borntreger.com>]

On Mon, 2002-09-23 at 23:45, David Roden (Akron OH USA) wrote:
> Standard lead acid	25-30 Wh/kg
> Advanced lead acid	30-36 Wh/kg
> Standard nicad		25-40 Wh/kg
> Advanced nicad		50-55 Wh/kg
> NiMH 				65-85 Wh/kg (Ovonics claims 90 for some)
> Lithium Ion			100-150 Wh/kg (AES claims 120)
> Lithium Polymer		150-200 Wh/kg (Electrovaya claims over 200)

So then why would they say that it has to get to 50Wh/kg for it to be
viable for consumer EVs?  It seems that 25-35 puts it equal with some of
the technology, and the "refueling" feature seems to give it a leg up. 
Although, they never mention purchase/manufacture price, so if that is
too high, then it has to compete with the capacities of the more
expensive batteries.

I wish battery technology advancements moved ahead at the same pace that
computer technology does, instead of this "wait ten years for something
to happen" pace.

Lonnie