/technologies/power-management/b/blog/posts/researchers-develop-tiny-nuclear-battery-that-could-provide-power-for-decadesThe nuclear battery design uses a small sample of americium embedded in a polymer crystal, which was combined with a photovoltaic cell and then packaged within a quartz cell. The design is rumored to be 8,000 times more efficient than previous desig.en-USTelligent Community 12