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Israeli scientists found a way around
that problem by removing certain
impurities. They found they were able
to stabilize the batteries in the caustic
solution commonly used for primary
and metal-hydride batteries.
Dr. Licht of Technion told the
New York Times, "The caustic solu-
tions not only stop the super-iron
from decomposing, but are basically
the same as that used in alkaline bat-
teries and therefore excellent for
electrical energy storage."
In their quest for an improved bat-
tery, the research team had unsuccess-
fully tried other materials ranging
from sulfur to tin before they made
their discovery. The team's super-iron
is actually ferrate, an unusual form of
iron combined with oxygen. Usually
highly unstable, the researchers found
that if kept very pure, it remained sta-
ble.
Meanwhile, the new batteries are
still being tested in the laboratories at
Technion.
Said James Deutchman, chairman
of the board of the American Society
for Technion East Central Region,
which encompasses Detroit, "Stuart
Licht is an incredibly inventive scien-
tist with an energy level equal to the
battery project he has created."
Dr. Licht believes the batteries will
be easy and affordable to manufacture.
Lithium-based batteries, the area
where research has previously been
focused in search for a long-lasting
battery, is 100 times more expensive
than iron.
Unlike conventional batteries, when
the super iron batteries break down,
they create "green" iron dust, eliminat-
ing the environmental damage caused
by the chemicals used in alkaline bat-
teries. And the relatively benign new
batteries are rechargeable.
More than 60 billion batteries are
used around the globe each year
thanks to the ever-expanding increase
in "high-drain electronics." Despite
the need for safe, inexpensive, higher-
capacity batteries, the market has been
dominated by batteries using man-
ganese dioxide, a material in use since
1860.
Said Nancy Gad-Harp, "Stuart
Licht's energy efficient and environ-
mentally friendly battery under-
scores the importance of the
Technion not only to Israel but to
the world. By taking a concept and
converting it into something with
practical application, the Technion
and Stuart Licht have had a consid-
erable impact." fl