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Saturday, October 11, 2025

TECH WATCH: COIN-SIZED NUCLEAR BATTERIES


TECHNOLOGY WATCH: 
COIN-SIZED NUCLEAR BATTERIES 


Imagine never having to recharge a medical implant, environmental sensor, or even a future smartphone—not for decades, but potentially a century. Thanks to breakthrough research in China, this dream is closer to reality than ever before.

Researchers have unveiled coin-sized nuclear batteries capable of delivering reliable power for up to 50 years using Nickel-63, and experimental models might extend operational lives to 100 years or more by harnessing Carbon-14. These "betavoltaic" batteries work by capturing energy from slow radioactive decay, converting it safely into a trickle of useful electricity. The BV100 by Betavolt, measuring just 15mm across, is already being mass-produced for specialized devices in aerospace and medicine.

However, while their lifespan is extraordinary, their power output remains limited—enough to run sensors and medical devices, but not yet adequate for powering mainstream consumer electronics. Researchers are optimistic that next-generation nuclear batteries will eventually deliver higher power, paving the way for true maintenance-free gadgets.

Looking ahead, these innovations could revolutionize how we think about energy storage: shrinking devices, eliminating battery waste, and enabling electronics in places where changing batteries is impossible. As the field evolves, the practical, safe use of ultra-long-lasting batteries may soon be within reach—not just for niche uses, but for the everyday technology that defines modern life.


Grateful thanks to PERPLEXITY AI for its generous help and support in creating this blogpost.

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