Hydrogen fuel cell

[Nan and Sandy Sanders]

Examples

http://www.rcgroups.com/forums/showthread.php?t=151687

also
http://www.wattflyer.com/forums/showthread.php?s=a5271ab25884e80f421076d73ed
7f91e&t=1584

            Sandy
            WB5MMB

----- Original Message -----
From: "John Teller" <jsteller at spottydog.us>
To: "AMRAD Tacos" <tacos at amrad.org>
Sent: Tuesday, May 16,
200http://www.wattflyer.com/forums/showthread.php?s=a5271ab25884e80f421076d7
3ed7f91e&t=15846 10:41 PM
Subject: Re: Hydrogen fuel cell


> We're designing Li-I batteries into pretty much all the new satellites
> at Orbital.  Since these are much larger than the little ones cell
> phones use, and since these are not equipped with fuses (just another
> point of failure) they are quite dangerous.  When mistreated they don't
> so much explode, as burn very quickly.  It seems thermal runaway with
> these batteries is nearly instantaneous.  They don't like being shorted
> when fully charged, over charged or too deeply discharged.  The last
> produces an irreversible chemical change that results in thermal runaway
> should a recharge be attempted.
>
> UL approved batteries are equipped with circuits that disconnect a cell
> that is about to be overcharged, or short it out if has been too deeply
> discharged.
>
> --- JST
>
>
> Robert E.Seastrom wrote:
> > Robert Stratton <bob at stratton.NET> writes:
> >
> >
> >> All that having been said, it's probably cleaner (and safer) than some
of
> >> the other PEMFC companies who want you to run your cell phone off of a
fuel
> >> containing methanol, high molarity sulfuric acid, and peroxide.
> >>
> >
> > now *that* sounds fun!  (see below)
> >
> >
> >> For the 10 kW and up class, there is some very spiffy solid-oxide
technology
> >> on the horizon.
> >>
> >
> > Does the "fun quotient" of the solid oxide technology for off-label
> > uses look promising?  As many warnings as I've heard about Li-I
> > technology, I have yet to see a practical demonstration of their
> > "unappproved" uses.
> >
> >                                         ---Rob
> >
> >
> > _______________________________________________
> > Tacos mailing list
> > Tacos at amrad.org
> > http://www.amrad.org/mailman/listinfo/tacos
> >
>
>
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