Scientists from the University of Bristol and the UK Atomic Energy Authority have developed a carbon-14 diamond battery, something that could be rightfully referred to as the world’s first-ever battery in this category. It is set to work for an unprecedented total of 5,700 years, making nuclear energy a game-changer in almost all kinds of applications as far as energy is concerned.
The carbon-14 diamond battery generates an electric current from the radioactive decay of carbon-14, a process typically utilized as a source of power in nuclear fission reactors. Being encased within a diamond—a material known for its hardness and durability characteristics—the battery can safely sequester short-range radiation by using it to produce power. It works much like solar panels do, only they are converting radioactive decay energy rather than energy from light. As a result, this construction can ensure an extremely long and stable source of energy. Even after several millennia, its power capacity falls to 50%, a consequence of carbon 14 has a half-life of 5,730 years.
Sarah Clark, Director of Tritium Fuel Cycle at UKAEA, described the innovation as “safe and sustainable,” highlighting its ability to deliver continuous microwatt power. This versatility makes it ideal for applications where traditional batteries fall short.
In healthcare, the bio-compatible battery could power pacemakers, hearing aids, and other implants, reducing the need for frequent replacements and minimizing surgical risks. For space missions, it promises to extend the lifespan of satellites and spacecraft, significantly reducing costs. Remote Earth locations and devices like radio frequency (RF) tags would also benefit from this enduring energy source.
Professor Tom Scott from the University of Bristol noted the battery’s dual benefit of creating valuable energy while reducing nuclear waste. The carbon-14 is extracted from nearly 95,000 tonnes of graphite blocks stored in the UK, repurposing hazardous material into a sustainable solution.
The manufacturing process employs a plasma deposition rig to grow the diamond structure, further enhancing its efficiency and safety. Fully contained radiation and a recyclable design ensure the battery is environmentally responsible. This revolutionary development merges cutting-edge fusion research with practical engineering, marking a significant leap toward a sustainable future for energy.