美国佐治亚理工大学的科学家近日宣布，他们成功研制出一种利用人体动能驱动发电的芯片，能够将人体在活动时产生的能量转换为电能，为随身电子设备提供电源支持。

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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（等价的） 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 volts² may not seem like much, it has grown by leaps and bounds（飞跃地） 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.”