Re: Redox batteries

Eventhough lot of battery technologies are poping up the current
established proven technology for Hybrid systems is NiMH. I recommend
NiMH.

M Moorthi
www.battery-consulting.com

Roy Lewallen wrote:
Jean-Marc Delaplace wrote:
. . .
I think that vanadium batteries completely address these three points,
which make me hope they become available - and affordable - within a few
years.

Sorry to be lengthy but I would be very pleased to discuss these
arguments with as many people as possible.

Without knowing anything at all about vanadium batteries, I can make the
following general observations:

1. Purveyors of new technologies are nearly always overoptimistic. This
improves their ability to attract investors and enhances stock price.

2. Nearly always, when a technology is introduced which solves the
problems in an older technology, it has has its own, new, problems and
limitations. They may not be apparent at first, but are discovered as
time goes by. This is why there's not just one kind of battery, and why
lead-acid batteries are still in very wide use more than 100 years after
their invention and in spite of the many, many other types which have
been developed since.

This new battery technology might prove to be the ideal solution to all
your problems. But I wouldn't bet on it, and I wouldn't put much time or
money into designing a system to accommodating them until they actually
exist and their real properties are known. And I wouldn't delay
launching my boat until they appear.

Roy Lewallen

.

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