South Korea developed temperature for mobile phone charging technology or 3 years business

"Global Science and Technology report," according to South Korea's central Daily reported April 8, the advantage of the mobile phone is no matter when and where the free call, but as long as the battery is used up will become useless, "wearable" electronic equipment is the same. But the future of these products doesn't seem to worry any more. Zhaobing, a professor of electrical and electronic Engineering at the Korea Institute of Science and Technology (KAIST), has developed "wearable thermoelectric elements" that dress like clothes and use body temperature to provide adequate power to mobile phones and wearable electronic devices. Thermoelectric elements are semiconductor elements that convert thermal energy into electronic energy, this is the use of connecting two metals, if one side of the hot side of low temperature, will generate electricity between the two circuit of the phenomenon of the phenomena of the elements, generally by bismuth telluride (Bi2Te3) and antimony telluride (Sb2Te3) and other thermoelectric materials produced. If the thermoelectric element is worn on the body, the current is generated according to the difference between the external temperature and the temperature. But the existing products using ceramic substrate, hard and heavy. Components using soft organic materials have recently been developed, but energy efficiency is only about 1% per cent compared with existing components. But KAIST research team in contrast, in the replacement of more efficient thermoelectric materials, made into ink form, in the soft glass fiber before and after the printing of the successful implementation of the "stone". The new components are as easy to process and lightweight as ordinary fibres, but the power production capacity is 14 times times as large as ceramic components of the same weight. If made with the wrist strap form attached to the arm, it produces about 40 gigawatts (based on temperature 零上20度, 37 degrees) of electricity, much more than the electronic sensor power consumption used on smart tapes. If made into a coat size, it can produce two watts of electricity, or even a cell phone call. Professor Zhaobing says the goal is to make energy efficiency four times times more efficient than it is now in 3 years, and to achieve practicality. It was originally used to assist existing batteries, but in the future, electronic devices without batteries could be made. (Internship compilation: Ishin good manuscript: Li Xiaofei)