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ZOONAR GMBH LBRF/age fotostock
MAKE AND DEFEND A CLAIM
Research one type of battery described in this
feature. Write a report summarizing why you
think this battery will or will not be successful
in the marketplace.
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Batteries of the Future: Super Charged!
Batteries are fundamental to modern
technology. Since the invention of the lithium
ion battery, researchers have been looking for
a better energy source for cars, smart phones,
and computers.
The New Wave of Battery Power
In most batteries available in devices today,
the electrolyte is liquid. However, some
researchers are working to develop safer
batteries with water-based, air, or solid
electrolytes.
The U.S. Army Research Laboratory, in
collaboration with the University of Maryland,
is shaking things up with new technology that
uses a saltwater electrolyte. The researchers
say this eliminates the fire and explosion risk
associated with some non-aqueous lithium
ion batteries, which is especially a concern for
military personnel in combat situations. The
technology needs to be perfected before it is
made commercially available, but so far, it is
the first battery of its kind to reach the 4.0 volt
mark essential for many electronics.
Lithium-air batteries are another promising
possibility for the future. It is projected they
could provide three times as much power for
a given weight compared with lithium-ion
batteries. Researchers across the country are
working to determine which electrolyte
material, such as lithium iodide, will be most
efficient in these batteries to make them
cheaper and more powerful.
Solid state batteries use polymer electrolytes
to eliminate the liquid electrolyte entirely. This
creates a safer, fire-resistant, more powerful,
and rechargeable energy source. Solid state
batteries are an important advancement to
the electric automotive industry, which is
currently limited by the range of the best
lithium ion batteries.
Given the pervasiveness of battery-powered
electronics, new faster, stronger, and safer
options could be the catalyst for the next big
breakthrough in battery technology.
Lithium ion batteries are used in electronics.
SCIENTIFIC BREAKTHROUGHS
Module 4 • Scientific Breakthroughs
133
CALIFORNIA CONNECTION
Research California laws about battery
disposal and recycling. Create a public
service announcement about how to properly
dispose of different types of batteries.