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A safe nuclear battery that could last a lifetime. Sometimes cell phones die sooner than expected. Now, researchers are considering radiocarbon as a source for safe, small and affordable nuclear betavoltaic batteries with carbon-14 that could last decades or longer without charging.

Rechargeable lithium-ion (Li-ion) batteries typically last hours or days between charging. However, with repeated use, batteries degrade and need to be recharged more frequently. Now, researchers are considering radiocarbon as a source for safe, small and affordable nuclear batteries that could last decades or longer without charging.

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