Finally, a 20 year battery.
(Phys.org) -- Florida-based City Labs says it has created an adult’s thumb-sized, battery, NanoTritium, that can last 20 years or more in the most extreme conditions, such as extreme temperature and vibrations.
City Labs requested defense contractor Lockheed Martin to test their batteries, which were confirmed to operate as specified and to be resistant to extreme temperatures (-50°C to +150°C), and extreme vibration and altitude. The power cell generates electricity using a layer of the radioactive-element tritium, mounted onto a semiconductor. The City Labs’ battery produces nanowatts of power; it is not strong enough to power a cell phone or laptop. This is a low-power battery that can run micro-electronics, anywhere that is hard, dangerous or expensive to reach.
Applications include implants such as pacemakers as well as devices in industry (sensors on deep-water oil drills) and defense. This is further described as a commercially-viable “betavoltaic” power source, meaning it’s powered by a radioactive element. Whereas normal batteries are powered by chemical processes, the NanoTritium is powered by physical processes of the benign radioisotope, tritium. The makers point out that tritium is already used in exit signs and divers’ watches. Read more here...