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Directory:BetaVoltaics

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For the encyclopedic entry on Betavoltaic Technology, see PowerPedia:BetaVoltaic
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Betavoltaics is an alternative energy technology that promises vastly extended battery life and power density over current technologies. Whether betavoltaics will replace current battery technologies altogether remains to be seen. Recent developments however, are promising. The following is meant to provide a basic introduction to betavoltaics in general and the current state of the art in betavoltaic technology.

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  • Batteries / Nuclear > BetaVoltaics >
    A 25-Year Battery - A NY company, Widetronix is developing batteries that could potentially power electrical circuits that protect military planes and missiles. The company is also working with medical-device makers to develop batteries that could last decades for implantable medical devices. The technology has been tested by Lockheed Martin. (MIT Technology Review)
  • 30 Year Continuous Power Laptop Battery? - Betavoltaic power cells are constructed from semiconductors and use radioisotopes as the energy source. As the radioactive material decays it emits beta particles that transform into electric power capable of fueling an electrical device like a laptop for years. (NextEnergyNews; Oct. 1, 2007) (Not so, says ZDNet)
  • A nuclear battery the size and thickness of a penny - They might sound dangerous, but nuclear batteries have been safely powering devices such as pace-makers, satellites and underwater systems for years. They have an extremely long life and high energy density compared to chemical batteries. Researchers at the University of Missouri are developing one that is smaller, lighter and more efficient. ('GizMag; Oct. 9, 2009)
  • New Power Cell Works for Nearly 20 Years - University of Missouri-Columbia scientists say they've developed a power cell capable of providing continuous power for years, using betavoltaic power cells that use radioisotopes as the energy source. (PhysOrg; Oct. 11, 2005)
  • The Atomic Battery - A breakthrough in betavoltaics could mean a 10-year battery life for low-power sensors and medical implants. (MIT Technology Review; June 16, 2005)
  • Silicon solution could lead to a truly life-long battery - Using some of the same manufacturing techniques that produce microchips, researchers have created a porous-silicon diode that may lead to improved betavoltaics. Such devices convert low levels of radiation into electricity and can have useful lives spanning several decades. (PhysOrg; May 10, 2005)


  • BetaVoltaic.com - Cell phone power system in development entails a betavoltaic cell stack to provide a constant trickle charge into an advanced Lithium-ion polymer battery cell. Next target: laptop computer power.

See review by American Antigravity

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