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Novel material enables simpler, more efficient batteries

Posted: 06 May 2015     Print Version  Bookmark and Share

Keywords:University of Maryland  solid state  battery  electrode  electrolyte 

A team of engineers at the University of Maryland has developed a battery that is made entirely out of one material, which can both move electricity and store it. According to them, the material incorporates the properties of both the electrodes and electrolyte.

"To my knowledge, there has never been any similar work reported," said Army Research Laboratory's Kang Xu, a researcher only peripherally related to the study. "It could lead to revolutionary progress in area of solid state batteries."

Novel battery from UMD

The electrolyte (green) forms the basis of the battery, and the electrodes at the top and bottom are created by adding carbon (gray). This battery is about the size of a dime, whereas conventional solid state batteries are thin films, forty times thinner.

Envision an Oreo cookie. Most batteries have at either end a layer of material for the electrodes such as the chocolate cookies to help move ions though the creamy frosting, the electrolyte. Chunsheng Wang, a professor in the University of Maryland's department of chemical and biomolecular engineering.

"Our battery is 600µm thick, about the size of a dime, whereas conventional solid state batteries are thin films, forty times thinner. This means that more energy can be stored in our battery," said Fudong Han, the first author of the paper and a graduate student in Wang's group.


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