The compact claimed that the battery employs 63 nuclear isotopes to generate 100 microwatts and a voltage of 3V of electricity through the process of radioactive decay.

The battery reportedly measures less than a coin at 15 x 15 x 5mm.

Currently in the testing stage, the company is planning to mass-produce the batteries for devices such as phones and drones among other electronic devices.

The success of the technology is likely to revolutionise electronics as it will minimise the need for chargers or portable power banks for phones and other devices which will keep on running for decades.

While the term nuclear energy sounds scary, Betavolt claims that its BV100 battery will not catch fire or explode in response to punctures or even gunshots.

At present, nuclear batteries are used to power spacecraft, underwater systems, automated scientific stations as well as crafts like the Mars rover.

The company used nickel-63, a radiactive element, as the energy source and then diamond semiconductors as energy converters.