Unplugged future: Phones powered for 50 years by atomic battery
Imagine a phone that could operate for half a century without ever needing its battery charged. While this might sound like something from a science fiction film, the Chinese company Betavolt Technology claims it is entirely feasible. The success hinges on an innovative and safe atomic battery.
Based in Beijing, Betavolt Technology is developing a miniature atomic battery known as a betavoltaic battery. The firm's representatives are confident that this technology will be applicable to a variety of electronic devices, such as smartphones and tablets. This groundbreaking battery is expected to allow devices to operate for up to 50 years without needing to be recharged.
Phone atomic battery
The first prototype is a battery named BV100, which generates a voltage of 3 V and is exceptionally small—smaller than a coin. Its dimensions are approximately 1.5 x 1.5 x 0.5 centimetres, and it delivers 100 microwatts of energy through the decay of radioactive material. This specific solution involves the decay of a nickel isotope, ensuring it is safe—it does not emit radiation or create harmful chemicals.
The battery's power is projected to increase to 1 watt by 2025. According to the creators, this technology can be used in a series of configurations to adjust power to meet the needs of modern devices. Android Central reported that the prototype has been presented as ready for mass production.
Is a phone with such a battery safe?
Although the concept of miniaturising atomic energy is not new, it has not been used in consumer electronics thus far due to risks associated with radioactive materials like plutonium. However, Betavolt's engineers stress that their solution is safe, thanks to a nickel isotope and a diamond semiconductor. The slow decay of nickel-63 into copper guarantees stability and safety.
With its layered design, the battery is resistant to self-ignition and explosion. It also operates under extreme conditions: from approximately -60 to 120 degrees Celsius. This certainly exceeds the capabilities of today's batteries used in electronics.
