According to the Chinese Academy of Sciences Institute of Metal told reporters: The Institute developed a new material that can use the body temperature power generation.Research team expects the next 5 years, this new material can be commercialized for the Bluetooth headsets, health monitors, watches , Smart bracelets and other wearable electronic equipment supply.In the National Institute of Metal Materials Shenyang Science (Joint) Laboratory, Ji-Ping Huang researcher introduced to reporters this new material: less than one finger width, 0.1 mm thick monolithic gray soft The film, attached to the wrist of the human body, immediately shows a significant output voltage on the connected measuring ammeter.
'This high-performance flexible thermoelectric material can achieve the thinnest only tens of microns.' 'Kai-Ping said,' thin-film batteries made of materials can be recycled daily use of waste heat power generation, such as the use of lighting lamp shade heat Or body temperature. '
邰 Kaiping said that the use of human body temperature power generation, the body temperature and ambient temperature difference of about 15 degrees Celsius can be achieved when the micro-watts - milliwatts of generating capacity, power generation efficiency increases with temperature increases, especially when the human body consumes biological activity Chemistry can generate heat or the outdoor average annual temperature in the north of less than 20 degrees Celsius when there is a temperature difference can generate electricity, the temperature is higher than the ambient temperature or ambient temperature can be higher than the body temperature.
According to reports, thin-film batteries made from the above new materials, namely 'flexible, can be tailored to be bismuth telluride/cellulosic composite thermoelectric thin-film batteries', for the first time to synthesize a network structure of high-performance bismuth tellurium thermoelectric materials with low-cost cellulose paper. , At the same time, it has excellent deformability, can fully conform to the complex curvature of the human body surface, and maintain the temperature difference with the surrounding environment, thereby enhancing the thermal energy conversion efficiency, can be applied to a new generation of low-power micro-system power supply technology.
It is understood that with the development of wearable electronic products, domestic and foreign scientists in recent years began to pay attention to the study of flexible thermoelectric materials and devices.
