Scientists and engineers from the University of Bristol and the UK Atomic Energy Authority (UKAEA) have created the world's first diamond battery, a groundbreaking energy source that could power devices for thousands of years.
This innovative battery uses carbon-14, a radioactive material commonly used in radiocarbon dating, to generate power.
The carbon-14 is placed inside a diamond structure, which captures energy from its radioactive decay.
This process is similar to how solar panels work -- converting light into electricity -- but instead, the diamond battery uses fast-moving electrons from carbon-14.
The result is a long-lasting power source that produces small amounts of energy continuously. These "micropower" batteries are ideal for situations where changing batteries is difficult or impossible.
The diamond battery could transform how we power devices in medicine, space, and extreme environments.
In the medical field, these batteries could be used in devices like pacemakers, hearing aids, and eye implants. Unlike traditional batteries, which need regular replacement, diamond batteries could last the lifetime of the patient. This would reduce surgeries and improve patient comfort.
In space exploration, the batteries could power spacecraft and tracking devices for decades without needing to be replaced. On Earth, they could be used in harsh environments, such as deep-sea exploration or remote locations where access is limited.
"These batteries can power a range of important technologies, from medical implants to space systems," said Professor Tom Scott of the University of Bristol. "We're excited to explore the possibilities with industry and research partners."
The key to the diamond battery's long life is carbon-14, which has a half-life of 5,700 years. The radioactive material is safely contained within a diamond layer, making the battery both durable and secure.
"Diamond batteries offer a safe and sustainable way to provide continuous power," explained Sarah Clark, Director of Tritium Fuel Cycle at UKAEA. "They are an emerging technology with potential for a wide range of uses."
This breakthrough is also linked to advances in fusion energy research, which provided the expertise to develop the diamond battery. The team built a special machine to grow the diamond layers at UKAEA's Culham Campus.
The carbon-14 diamond battery could revolutionize energy storage, paving the way for technologies that last not just years, but centuries.