Betavolt Develops Nuclear Battery with 50-Year Lifespan

The BV100, using a nickel-63 radioactive isotope and a diamond semiconductor, is in pilot production with a larger one-watt version expected in 2025.

China's Betavolt New Energy Technology has developed a modular nuclear battery, the BV100, that can power a device for 50 years.
The BV100 uses a combination of a nickel-63 radioactive isotope and a 4th-generation diamond semiconductor.
The battery can produce 100 microwatts at 3 volts and measures 15 x 15 x 5 mm.
The energy density of the BV100 is rated at 10 times that of lithium batteries and is not prone to fire or explosions.
Betavolt is in pilot production with an eye on mass production, and a larger one-watt version is expected in 2025.