Scientists and engineers have created a battery that has the potential to power devices for thousands of years.

The UK Atomic Energy Authority (UKAEA) in Culham, Oxfordshire, collaborated with the University of Bristol to make the world’s first carbon-14 diamond battery.

Scientists say it could be used with medical devices like ocular implants, hearing aids and pacemakers, minimising the need for replacements.

Sarah Clark, director of tritium fuel cycle at UKAEA called it a “safe, sustainable way” to provide continuous power.

She added: “They are an emerging technology that use a manufactured diamond to safely encase small amounts of carbon-14.”

The battery could also be used in extreme environments – both in space and on earth – where it is not practical to replace conventional batteries.

Professor Tom Scott, from the University of Bristol, said: “Our micropower technology can support a whole range of important applications from space technologies and security devices through to medical implants. We’re excited to be able to explore all of these possibilities, working with partners in industry and research, over the next few years.”

The battery also provides a safe way of dealing with nuclear waste.

Carbon-14 is generated in graphite blocks in some nuclear fission powerplants.

The UK holds almost 95,000 tonnes of graphite blocks and, by extracting carbon-14 from them, their radioactivity decreases, reducing the cost and challenge of safely storing the waste.