Chinese Academy of Sciences Beijing Institute of Nano Energy Systems chief scientist Zhong Lin Wang led the research team designed a rotary friction electricity generators , can wind , water , and even human motion kinetic energy is converted into electrical energy , while ensuring the power generation efficiency and low cost. Research results published in the recent "Nature Communications " on.

According to the Chinese Academy of nano- energy researchers, traditional friction device generally consists of two power generating friction layer and the corresponding electrode layer, electrostatic induction charge balancing process between the electrode layer and the surface charge generated by friction layer after contact with each other , outward circuit output power. New power generation apparatus using the rotary friction of the friction surface of the patterned layer and the electrode layer , by contacting the rotary drive design , the circular plane of the two parts of the stator and rotor . Their mutual contact surface of the material was radioactive graphics array of closely spaced around the tiny fan-shaped components. When the relative rotation of stator and rotor , the maximum average output power of 1.5W, up to 24% to obtain energy conversion.

By combining the generator and power management circuits , researchers will further develop a complete small power systems, mobile phones and other small appliances to achieve real-time supply. This friction generating device and an organic thin film composed of a metal belonging to large-scale industrial raw materials , low cost. Simple structure of the friction generating device , easy to manufacture , beneficial widely used.

Future application areas of friction rotary electric generator is very extensive, not only as a small electrical power supply unit , that is, through the daily activities of people get enough to light the lamp , the energy supply to the cell phone ; also expected to become a large-scale use of energy efficient environment solutions, including the nature of the collection of the air flow , water flow , and other mechanical energy ; simultaneously , the output signal of the rotary electric generator capable of friction sensitive nature of the reaction driving force , such as speed , frequency, etc. , can be used as high sensitivity, sensing means from the drive .