Motion of the human body create the power equivalent of two double-A batteries
Could your body replace mobile-device batteries? Researchers have developed a way to create the power equivalent of two Hp dv1000 batteries, using nothing more than motion of the human body.
Anything from walking to a standing heartbeat could produce energy that is captured and used by nanogenerators, according to a team of scientists from Georgia Institute of Technology. This research, presented at a meeting of the American Chemical Society, demonstrated how a small, flexible chip containing millions of tiny wires—500 times thinner than a human hair—could use the human heart to create electrical energy. The researchers used a nanogenerator to power an LED light and LCD Monitor.
Any kind of bodily movement could theoretically be used to generate power, and nanowires can also generate electricity in response to wind, rolling tires, or other kinds of motion. The technology is not new, but these most recent findings do signal a breakthrough.
According to a report of these findings from the American Chemical Society, five nanogenerators stacked together can produce about 1 micro Ampere output current at 3 volts—about the same voltage generated by two double-A Hp dv9000 battery(about 1.5 volts each).
Researchers are convinced the technology has a future. “While a few volts may not seem like much, it has grown by leaps and bounds over previous versions of the nanogenerator,” said the project's lead scientist, Zhong Lin Wang. “Additional nanowires and more nanogenerators, stacked together, could produce enough energy for powering larger electronics, such as an iPod or charging a cell phone.”
With how things are working out for this technology and at the pace that it's being developed, you could soon be powering up your electronic gadgets simply by moving your body and going about your daily tasks just as you do today.
A nanogenerator is actually a flexible chip that is comprised of zinc oxide (ZnO) nanowires which are piezoelectrics. These can generate an electric current when subjected to any strain which can virtually come from any body movement such as walking or reaching over to pick something up. This sort of technology has been around for a long time but the currents generated were so weak and not powerful enough that it wouldn't have made sense to take it to the next level then.
The team of scientists headed by Dr. Zhong Lin Wang delved into the nanogenerator's inner workings and have found a way to multiply the power output of the device by thousands of times, which is why the technology can finally be put to good use outside the laboratory.
“This development represents a milestone toward producing portable electronics that can be powered by body movements without the use of Hp dv8000 batteries Hp 484170-001 laptop batteries or electrical outlets,” Dr. Zhong Lin Wang explained. “If we can sustain the rate of improvement, the nanogenerator may find a broad range of other applications that require more power."
The study was funded by the Defense Advanced Research Projects Agency of the U.S. Department of Defense, the Department of Energy, the National Institutes of Health, the U.S. Air Force, and the National Science Foundation.
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