There are a lot of people and companies right now who are researching different ways to produce solid-state batteries at scale.
UNIVERSITY PARK, PENNSYLVANIA — Compared to their traditional battery counterparts, solid-state batteries have higher energy potential and are safer, making them key to advancing electric vehicle development and use. Penn State researchers have proposed an improved method of solid-state battery production that enables multi-material integration for better batteries — cold sintering.
One of the larger issues for solid-state batteries making the leap from laboratory to the market is the great challenges inherent in their production. Current battery electrodes are a mixture of active material, carbon, and the liquid electrolyte. Without a liquid electrolyte, there is no longer any direct path for the ions to move around in the electrode.
“There are a lot of people and companies right now who are researching different ways to produce solid-state batteries at scale,” Grady said. “It’s not an overstatement to say it is one of the hottest topics in science at the moment, solving this problem.” “So, what cold sintering does is really serve as an indication that it’s possible to make solid-state batteries out of ceramics.” —Zane Grady
In a prior study, the research team demonstrated how cold sintering can be employed at temperatures below 300 degrees Fahrenheit to fabricate multilayered, solid-state lithium-ion batteries. They relied on conductive salts to obtain suitable electrochemical properties, which undercut some of the conductive and safety advantages of solid-state batteries.
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