The battery uses a radioactive isotope called strontium-90 that boosts electro-chemical 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," said Jae W Kwon, an associate professor of electrical and computer engineering and nuclear engineering.
Water acts as a buffer and surface plasmons (collective oscillation of the electrons) created in the device turned out to be very useful in increasing its efficiency.
The research was published in the journal Nature.
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.