Researchers Invented Water-based Nuclear Battery

For the First Time Using a Water-based Solution, Researchers at the University of Missouri Have Created a Long-lasting and More Efficient Nuclear Battery that Could be Used for Many Applications

The battery uses a radioactive isotope called strontium-90 that boosts electrochemicial energy in a water-based solution. A nano structured titanium dioxide electrode (the common element found in sunscreens and UV blockers) with a platinum coating collects and effectively converts energy into electrons.

"Betavoltaics, a battery technology that generates power from radiation, has been studied as an energy source since the 1950s," saidJae W. Kwon, an associate professor of electrical and computer engineering and nuclear engineering in theCollege of Engineering at MU. "Controlled nuclear technologies are not inherently dangerous. We already have many commercial uses of nuclear technologies in our lives including fire detectors in bedrooms and emergency exit signs in buildings."

"Water acts as a buffer and surface plasmons created in the device turned out to be very useful in increasing its efficiency," Kwon said. "The ionic solution is not easily frozen at very low temperatures and could work in a wide variety of applications including car batteries and, if packaged properly, perhaps spacecraft."

The research, "Plasmon-assisted radiolytic energy conversion in aqueous solutions," was conducted by Kwon's research group at MU, and was published inNature.

Source: University of Missouri

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