A Chinese startup claims its new radioactive coin cell can provide power for decades. Here is why you shouldn't expect it in your smartphone soon.

Rechargeable batteries are everywhere—from portable electronic devices and electric vehicles to renewable energy storage.

Deep space probes and frontline soldiers share a basic problem: once they leave the grid, every watt has to be carried in. That constraint has shaped mission design for decades, from bulky ...

Russia is advancing long-life nickel‑63 betavoltaic “nuclear batteries” for aerospace and remote systems, targeting mass production by 2028–2029.

Betavolt, a Chinese firm, has revealed an atomic battery for customers that can last for half a century. The Betavolt BV100 will be the first product to come out using the firm’s new atomic battery ...