|Researchers at Purdue University have developed new safer high-voltage solid-state batteries. Current solid polymer electrolyte (SPE) battery technologies have poor thermal stability, ionic conductivity that is limited to low temperatures, and are not adaptable to high energy density solid-state lithium batteries. Purdue researchers have fine-tuned a new SPE composite material for batteries with a wide voltage window of ~4.8V, optimized ionic conductivity ~2.4*10^-4 S/cm, and excellent thermal stability at up to ~330 degrees C. In testing, coin cells made from the new composite SPE exhibited 189 J/g of exothermic heat whereas coin cells made from traditional SPEs produced 812 J/g of exothermic heat. The thermally stable composite SPE created by Purdue researchers can be used in lithium-ion batteries.
-Compatible with Higher-Energy Density Batteries
-Excellent Thermal Stability
-Improved Ionic Conductivity
-Optimized Voltage Window
-Materials Science and Engineering
The new material shows a wide voltage window of ~4.8V, high ionic conductivity ~2.4*10^-4 S/cm, and excellent thermal stability at up to ~330 degrees C.
Dec 7, 2020
Purdue Office of Technology Commercialization
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