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美國佐治亞理工大學(xué)的科學(xué)家近日宣布，他們成功研制出一種利用人體動能驅(qū)動發(fā)電的芯片，能夠?qū)⑷梭w在活動時產(chǎn)生的能量轉(zhuǎn)換為電能，為隨身電子設(shè)備提供電源支持。據(jù)研究人員介紹，這種芯片是由上百萬根比頭發(fā)絲還細(xì)500倍的線纜構(gòu)成的，這些線纜能夠捕捉人體的任何活動，比如行走、甚至心跳，所產(chǎn)生的能量，同時還能收集風(fēng)、輪胎轉(zhuǎn)動及其他自然界活動產(chǎn)生的能量，并將其轉(zhuǎn)換為電能。研究人員表示，雖然目前研制的芯片發(fā)電量只有幾伏，但是隨著版本的不斷改進(jìn)，這種芯片的發(fā)電量完全足夠給iPod、手機(jī)等隨身電器提供電能。
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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. |
Could your body replace mobile-device batteries? Researchers have developed a way to create the power equivalent of two double-A 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 display.
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.
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.”
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(Agencies)
（中國日報網(wǎng)英語點津 Helen 編輯）
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