There are those of us who rather like lithium. I have had a 16 cell 160 ah bank for over a year with very fine performance. I have a bms but the charger and a total battery monitor, i.e., fuel gauge, have managed the bank to the point that neither the bms alarm nor shut-down have ever gone on. I am operating with a 0.5C load. There is no need for a blanket condemnation when they may be the best solution for some applications. My app is to go fairly fast (10-15 knots) for a long way (25+ nm). It works.
Ned
P.S. Love is giving of oneself for the good of the beloved. It can last forever.
On Jun 12, 2012, at 11:49 AM, Kirk McLoren wrote:
the patents control all batteries regardless of the application.Lithium is a PITA. each battery requires a BMS.Love is so short, forgetting is so long.
From: danbollinger <no_reply@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Tuesday, June 12, 2012 5:14 AM
Subject: [Electric Boats] Re: NiMH Batteries Suppressed
Right. I got that reversed. The patents control all-electric vehicles, but not hybrids. Sadly, NiMH are much more easily recycled than Lithium-ion.
--- In electricboats@yahoogroups.com, Craig Carmichael <craig@...> wrote:
>
> >I believe there is some sort of contract, patent, or combination of
> >both, possibly from GM, that requires hybrids to only use NiMH.
> >
>
> It is the opposite. Since the success of GM's EV-1 [see video "Who
> Killed the Electric Car"] Chevron acquired Ovonics from GM, and via
> its morphing proxies Cobasys and now "Ovonics reborn"(?) has acquired
> 125 patents for metal hydrides and simply won't let ANYBODY, ANYWHERE
> build big flooded NiMH batteries.
>
> The writing is on the wall: try to make them and you'll get a "stop
> work" injunction and be tied up in court until bankruptcy. Whether or
> not any of the patents were violated. No sane investor would touch
> that. (And I'll bet almost none of the 125 inventors got much of
> anything, since their inventions have gone to waste as usual.) No
> wonder China "doesn't honor" [technology murder by] US patents.
>
> That's the main reason lead-acid isn't EXTINCT, because as Kirk
> surmises the prices would be economical - only somewhat more, and the
> batteries far superior and way longer lasting.
>
> That's also why the NiMH D cells have been so well developed and have
> amazing specs, and are being used as hybrid batteries. But they cost
> double(?) what big flooded cells would.
>
> And it's also the main reason there are big lithium batteries. These
> snuck past while they were busy supressing NiMH because they were so
> high priced and so 'touchy' in operation that the gangster owners of
> "big oil" thought no one would use them.
>
> And it was my original impetus to try, first 'simply' to make NiMH's
> (Jan.2008), and then as I learned more, to create a new higher energy
> economical battery chemistry.
>
> Craig
>
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