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News Link • Energy

Long-lasting, water-based nuclear battery developed

• http://www.gizmag.com, By Colin Jeffrey

Researchers working at the University of Missouri (MU) claim to have produced a prototype of a nuclear-powered, water-based battery that is said to be both longer-lasting and more efficient than current battery technologies and may eventually be used as a dependable power supply in vehicles, spacecraft, and other applications where longevity, reliability, and efficiency are paramount.

"Betavoltaics, a battery technology that generates power from radiation, has been studied as an energy source since the 1950s," said associate professor Jae W. Kwon, of the College 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."

Utilizing the radioactive isotope strontium-90 to enhance the electrochemical energy produced in a water-based solution, the researchers have incorporated a nanostructured titanium dioxide electrode acting as a catalyst for water decomposition. That is, the catalyst assists the breakdown of water in conjunction with the applied radiation into assorted oxygen compounds.

http://www.nature.com/srep/2014/140611/srep05249/full/srep05249.html

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