--- James Drysdale <[email protected]
> Peter VanDerWal wrote:
> >> Some background.....
> >> The battery capacity for my bicycle that I was
> originally aiming for was
> >> 40Ah. I thought Ni-MH would be a good solution as
> lead-acid would be
> >> very heavy and as it was a relatively small
> battery, the cost of Ni-MH
> >> cells would be okay.
> > That is a HUGE pack for a bicycle. What are you
> planning for 100+ mile
> > range?
> Come December, yes.
> About 1600km (1000 miles), then back again.
> And in the meantime my daily load will be about
> 145kg (320 pounds).
> I do a call-out on-site tech service, all over town,
> and would like to
> use my recumbent trike as a primary vehicle.
> Need a trailer to haul my gear, and its not that
> >> I have been researching more.
> >> Chevron own the rights to Ni-MH technology?
> > As I understand it, the basic technology.
> >> Apparently they sued Panasonic for $30 million
> over an EV-95 line of
> >> Ni-MH cells....
> >> http://www.ev1.org/chevron.htm
> >> So is it true that a large entity owns the
> patents for Ni-MH technology,
> >> and as this entity has more to do with oil,
> "restricts" the availability
> >> of Ni-MH cells?
> > Yes, their licensing agreement specifically
> prohibits batteries large
> > enough for EVs, this is why they sued Panasonic,
> and won.
> >> Is this why lead-acid is still the only viable
> technology? Even for a
> >> crappy bicycle?
> > Well, there is always LiIon/LiPol batteries.
> Using DeWalt 9360 36v 2.2Ah packs as a reference,
> it will cost me $AU6480 ($US5546) for a 36v 40Ah
> There was a seller on eBay selling these packs for
> much cheaper, but atm
> I can only find one (expensive) seller.
> Also I am actually trying to save for a much bigger
> EV, and this won't
> >> Is there some Chinese or Taiwanese manufacturer
> that builds Ni-MH cells
> >> free of restraint from Chevron?
> > Legally? No. But then the chinese tend to ignore
> trivial little things
> > like international patent/copywrite laws.
> Hmmm, I'd hate to think what I or anyone else would
> have to go through
> for an international order from such a company, and
> assuming that they
> build the same type of Ni-MH, what their quality
> control would be.
> Sorry, I am inexperienced in this area.
> >> Is Nickel Metal Hydride cell technology
> restricted world-wide by a
> >> company that has its stakes in oil????
> > Only for a few more years, until the patent runs
> Well that is some good news.
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