Beijing-based Betavolt New Energy Technology Company has developed an atomic energy source, miniaturized into a form factor approximately ½ inch square and less than ¼ inch thick. The first production batteries, called BV 100, are expected to have a lifetime of 50 years, delivering 1/10 of a milliwatt of power at 3 Volts. * * * Want to watch this podcast as a video? This Week in Engineering is available on engineering.com TV along with all of our other shows such as End of the Line, Designing the Future, Manufacturing the Future, and the Engineering Roundtable.