According to foreign media New Atlas, the latest research from the State University of New York at Buffalo and the Chinese Academy of Sciences will one day allow users to leave their chargers at home and use their body movements to recharge mobile phone batteries. The research team developed a Friction-driven nano-generators in the form of small metal labels that generate electricity through simple body movements such as finger flexion.
The metal tag utilizes a frictional electrification effect that can generate electrical charges by rubbing against two materials that are prone to attack. In this study, the two materials scientists used were gold and polydimethylsiloxane. PDMS, the thin layer of the former surrounds the layer of the latter. When one of the layers of gold is stretched and then released, it deforms to look like a miniature mountain. Then, when the device bends again, gold Friction occurs between the PDMS layer and the charge.
Xu Yun of the Chinese Academy of Sciences stated: 'This will cause electrons to flow back and forth between gold layers. The more friction there is, the more charge will be generated.'
The device is only 1.5 centimeters (0.6 inches) in length and 1 centimeter (0.4 inches) in width, and successfully delivers a maximum of 124 volts, with a maximum current of 10 microamps. This is enough for the team to simultaneously illuminate 48 red LED lights. The scientists proposed different types of frictional electrification for nano-generators. The team stated that their equipment is cost-effective and simple to manufacture.
Gan Qiaoqiang, co-author of the study, stated: 'No one likes to be tied to a power outlet or carry a portable charger. The human body is a rich source of energy. We think: 'Why not use it to generate electricity?'
