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Nowadays, solar energy has become a very important part of the overall human energy structure. Scientists are studying more effective ways to store solar energy and use it at night or when it is particularly cloudy. Now a new material can achieve this effect. Recently, a research team from the Massachusetts Institute of Technology has used a transparent polymer film that can be applied to multiple surfaces including glass and clothes. This polymer film can store solar energy and heat when needed. Release it.
Imagine, no matter how cold, we only need to wear one of these clothes when we are at home. There is no need to play with air conditioners and heating. Or a film on a windshield can be used to absorb the solar energy absorbed the previous day the next day to melt the frost on the car.
Ted Sargent from the University of Toronto did not participate in the study, but he said in an interview: "This study presents an exciting approach to energy harvesting and single material storage. This approach is innovative and very unique."
Many solar energy storage plans focus on converting energy into electricity, and then storing electricity to save electricity. However, the researchers developed this method using a chemical reaction, which produces heat instead of electricity. The researchers said that in this way, energy can be retained in a stable molecular structure indefinitely until it is ready for use.
The key to this process lies in a molecule that is stable in both structures. Sunlight will allow it to enter a long “charging†mode and then perform another stimulus such as light, heat and electricity. It will be changed to the original "Uncharged" state, and the heat released will appear as a result after the entire process is completed.
This type of solar fuel has been previously developed, but this new method is based on the realization of a solid polymer rather than a liquid for the first time, which also leads to different applications. More importantly, it is based on cheap materials and a wide range of manufacturing. In other words, this method is very low cost, and mass production is not a problem.
It is understood that the researchers will further refine the existing research results. They hope to clarify the slight yellowness of the polymer and increase the temperature increase from 10°C to 20°C. The first area of ​​application for this study may be electric vehicles, which can significantly reduce the amount of electricity used for heating at low temperatures, and the range of the vehicle's cruising range can be extended.
At present, this research result has been published in the "Advanced Energy Materials" professional journal.
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