Or to be more precise a nano-lithium battery, you can purchase this battery at the moment in China on their equivalent of Amazon. The battery is made of a layer of radioactive tritium. The battery is said to last 20 years or more but with only a small current generated it will not be able to power our typical day-to-day electronic devices just yet. You may see this particular battery in devices such as sensors and body implants.
Nuclear batteries are a very attractive solution to our ever-hungry energy consumption, because the decaying isotope that powers them can provide sufficiently small amounts of current for many years. They have already found successful applications as pacemakers, and integral sources within space and underwater exploratory systems.
Recent studies have advanced our understanding of these tiny power packs by capturing charged particles in a special storage ring. It is hoped the findings will help scientists gain a better understanding of how to control the trapped nuclear energy, with the ability to release it on demand.
Researchers have managed to capture an unstable isotope of bismuth, B-212. The isotopes were generated using high energy nuclear collisions and then the ions stored in a specially constructed ring at GSI Helmholtzzentrum. Here the scientists were able to study the ions for a significant amount of time, opening up many opportunities to understand these ions and how they might be harnessed in batteries of the future.