Nanofuel Cells Provide Remote Power

by R. Colin Johnson EE Times, 20 Feb 2006 A researcher at Lawrence Berkeley National Laboratories has demonstrated a fuel cell measuring just 200 nanometers across that potentially can be integrated on-chip to supply power from a hydrogen reservoir for decades. Today, there are only two ways to power remote sensors and similar devices that require little power over years of unattended use. For devices with lifetimes of less than 10 years, the solution is expensive, bulky lithium batteries. For longer lifetimes, the answer is batteries that draw energy from radioactive isotopes. Read more