I missed the part about 10 to 15 KV on the battery. Changes the
picture. As you noted a series/parallel connection scheme probably
needed, unless you can imagine a 15 KV motor. Now a multi-pole relay is
needed, oil immersion (arc-over at 10KV is something like an inch in
air). All feasible but still pricey. Too pricey just to get ten
minutes charge time, except maybe for the polo set.
The current at each cell is now down to 100 amps. 10,000 small devices
with 100 amp hardware on each, there may be a packing problem, ie, no
room at the inn, or in the trunk.
This really is just a clueless flack's idea. Or my imagination can no
longer hack it...
Ol' Bab
On 3/9/2013 6:09 PM, [email protected] wrote:
In reply to David L Babcock's message of Thu, 07 Mar 2013 18:01:32 -0500:
Hi,
[snip]
Starts to look better, when not in driver's home.
I still have problem with 1.2 MW! Car's system is very unlikely to be
over 480 volts at the battery, which implies 2,500 amps capability in
the battery hardware.
I suspect it is has lots of smaller batteries rather than a few large ones. That
means that during a quick charge, many(all?) of them are connected in series, to
allow charging at a very high voltage.
Since they quote 10-15 thousand volts, and a single cell is about 1.5 volt, I
would say about 10,000 cells in series (with possibly two or more of these banks
in parallel?)
At 10-15 thousand volts a current of 100 A would suffice, and they say that the
special cathode (nano-powder?) allows for high charging currents.
[snip]
Regards,
Robin van Spaandonk
http://rvanspaa.freehostia.com/project.html
