Search Here

Researchers have developed the first water-based nuclear battery, that can be used to generate electrical energy, according to a new study. 

Betavoltaics, a battery technology that generates power from radiation, has been studied as an energy source since the 1950s," said Jae W. Kwon, an associate professor of electrical and computer engineering and nuclear engineering in the College of Engineering at MU, in the press release. "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."

The newly devised battery uses a radioactive isotope called strontium-90 that boosts electrochemcial energy in a water-based solution. A nanostructured titanium dioxide electrode (the common element found in sunscreens and UV blockers) with a platinum coating collects and effectively converts energy into electrons, the press release explained. 

"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 study is published in the journal Nature.