The Diamond Battery is a new type of battery that could change the way we think of long-term energy storage and electricity generation. There are no moving parts involved, no emissions generated and no maintenance required, just direct electricity generation. By encapsulating radioactive material inside diamonds, they turn a long-term problem of nuclear waste into a nuclear-powered battery and a long-term supply of clean energy. The diamond battery is low power compared to conventional batteries, but could do something that no battery before it has: last thousands of years. It would take 5,730 years for it to reach 50 percent power. That type of lifetime would make these batteries well-suited for applications where a constant power source is needed but it is difficult to replace or charge batteries once they're installed -- think environmental and structural sensors, pacemakers, satellites, spacecraft and much more.