Jul 25, 2021 20:50

New polymer able to store energy at higher temperatures

New polymer able to store energy at higher temperatures
A team of researchers at the Pennsylvania State University has created a new polymer that is able to store energy at higher temperatures than conventional polymers without breaking down. In their paper published in the journal Nature, the team describes how they created the polymer and why they believe it could be useful in many products.

 Harry Ploehn with the University of South Carolina offers a brief history of polymers created for use in electronics, in a News & Views piece in the same journal issue, and describes the work done by the team on this new effort—he also offers an opinion on the prospects for the newly development polymer.

As Ploehn notes, dielectric capacitors are used in wide variety of applications that require holding onto a charge and then offering a short burst of power when needed. In many applications dielectrics are made of polymers (because they are light, relatively easy to make and because defects can be easily controlled), but there are still some areas where they cannot be used because they cannot function correctly under temperature extremes—that prevents their use inside car engines, for example. In this new effort, the researchers have taken a new approach to creating a polymer that allows for use in extremely hot applications.

The new polymer was created by the team by adding nanometer-scale sheets of boron nitride to a conventional polymer, which testing showed increased its energy density by 400 percent (which means capacitors made using it could be smaller and thus lighter). And testing also showed the newly improved polymer was able to remain stable at temperatures as high as 300°C, and was able to withstand rigorous bending.


Apr 19, 2017 11:21
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