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Scientists from the Autonomous University of Coahuila (UAdeC) and the Saltillo Institute of Technology, belonging to the National Institute of Technology of Mexico (Tecnm), have developed flexible devices capable of capture the heat of the human body, convert it to electricity and use it in various electronic devices, such as in your mobile phone, informed the National Council of Science and Technology (Conacyt).
This prototype is the first step towards charge electronic devices such as cell phones and watchesfrom devices attached to clothing, using sustainable energy such as body heat or even solar energy.
Prototype to capture body heat. (Conacytprensa.mx)
This work is part of the "Conacyt Chairs" project, entitled "Strengthening and Consolidating the PhD in Materials Science and Technology of the Faculty of Chemical Sciences (FCQ) of the Autonomous University of Coahuila (Uadec).
Thanks to the development of specialized materials and the principles of the technological trend of flexible electronics, researchers are developing this prototype which has obtained encouraging results.
In an interview with the news agency Conacyt, the experts detailed the potential of this project, its preliminary results and the contributes to the development of flexible electronics in Mexico, an area of opportunity for the country and a global technological trend.
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Sustainable prototype
The specialists developed this project from the point of view of flexible electronics, a new technological trend that aims to develop conventional electronic elements that are flexible, compact, lighter, based on biodegradable materials and at a lower cost.
The flexible electronic project is part of project 156 approved by the Faculty of Chemistry of Uadec. This project is essentially aimed at developing flexible electronic devices exploiting different energy sources, "said Dr. Jorge Roberto Oliva Uc, professor at Conacyt University, Department of Ceramic Materials, Faculty of Chemical Sciences.
Currently, electronic devices are stiffer, heavier, made with metals and Flexible electronics tries to replace all these electronic parts with other elements that work the same way but are lighter and environmentally friendly. As part of the Conacyt Chair, specialists are working on a device that captures the heat of the human body and converts it into electricity.
In this direction, the human body works like a battery. This device uses this energy, source of human heat, to turn it into electricity and to power another mobile device that could be a calculator, a clock, and we are currently working to make it efficient enough to power a mobile phone, "explained Oliva Uc.
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Advantages and disadvantages of the prototype:
- It respects the environment because it uses non-toxic inert materials.
- Use the long-lasting energy of body heat.
- It has a grip on the skin and its ability to follow the movements without losing the efficiency of the voltage generation.
As disadvantages, we could add that the efficiency or the voltage generated depends on the area, the size of the surface of the device. In addition, the idea is to make the device as compact as possible to make it more comfortable for the user and at a lower cost, "said José Roberto López Ignacio, project collaborator and student in materials engineering with specialization in materials advanced from the Saltillo Institute of Technology.
"We are looking for a flexible device that takes the heat of the human body and can generate level of voltage and current comparable to conventional batteries that are used in toys, watches, in any portable electronic device, "added Oliva Uc.
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Encouraging results
The researchers have the prototype at the lab level and says that this device represents a cost advantage.
According to our estimates, a long-lasting 1.5V battery usually costs up to 20 pesos, is bulky, heavy and stiff. The device developed as part of this research is flexible, noticeable to a liner or fabric and can cost up to 80 pesos per square meter. You must therefore evaluate the amount of current and the total voltage that can produce this square meter and calculate how many commercial batteries are equivalent to 1.5 V or 9 V ", said Oliva Uc.
Scientists have indicated that have reached very promising levels from the production of energy in the prototype at the laboratory level compared to the reported literature.
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The researchers indicated that they would perfect this prototype, they will apply for the patent and they will look for a company interested to carry out studies on the feasibility of their production at the industrial level.
Oliva Uc pointed out that this type of technology could give the country a competitive advantage around the world. It is therefore necessary that people work in these fields, improve this type of technology and even Start Mexican companies that commercialize these innovations in other countries.
I think it's important for the country because it could give it a global competitive advantage over this type of technology. It is therefore necessary that people take care of this, perfect this type of technology and why not: open a Mexican company to sell this type of technology to other countries. It is a problem that developed countries are maturing and that Mexico can not and should not be left behind, "he said.
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With information from Conacyt.
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