Re: High-frequency electrolyzers

Eeyore wrote:

Williamknowsbest wrote:


Eeyore wrote:

Williamknowsbest wrote:

Wait a minute. Are you saying you are unaware that nearly all fuel
cells that have 50% to 60% efficiency at peak power - you are unaware
that those very same fuel cells operate at 80% to 90% efficiency at
very low power? Are you saying this? Are you saying you need a
REFERENCE for this?

Apparently you require one to 'prove' that Varta can make a simple 2700mAh > NiMH cell !

I suppose you think Varta are lying ?


Wow.

WOW indeed.

Just buy a Varta 2700mAh NiMH and check it out. On sale now - the battery > you claim *CAN'T BE MADE*

!

Don't be a fool. I'm not doubting 2700 mAh AA NiMH batteries.


You were a few posts back.



I'm doubting that such batteries have energy densities 3x higher than
accepted figures.


Early NiMH AAs had a capacity of ~ 1000mAh. Which one conforms to 'accepted figures' ?



This whole issue arose from Graham's statement that the figures Honda
quoted in their EV website as being 1/3 the currently accepted figures
for NiMH batteries. Graham said that not me.


I never referenced Honda. You introduced them. I have no interest whatever in what they have to say on
the matter. Their work was clearly with older technology batteries.



This came from the observation that Honda needs 800 pounds of
batteries and Graham said he can get the same performance out of 160
pounds of the same kind of batteries because a) his auto design is
better than the best Honda can do, and b) he uses more modern
batteries are 3x more energy dense per kg than Honda is able to come
up with.

In response to these bold claims I asked Graham for pointers to any
literature that supports his latter contention. To which he came up
with some figures about AA NiMH batteries- which I found unconvincing
- and still do.


The energy density figures are a fact.

Graham

There was a fundamental breakthrough in NiMh and NiCad a year or two back in which they learned to control three outer shell electrons instead of just two.

Which gave a theoretical 50% bump to the maximum energy density.

It was basically a question of learning how to stabilize.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
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