New Electrolyte Formulations for BEV, PHEV and Start/Stop Vehicle Systems

Wildcat Discovery Technologies has introduced its SuperTemp electrolyte technology.   SuperTemp reduces cell impedance (ASI) by 40 percent at low temperatures of -25oC and by 30 percent during 60oC high temperature storage tests.

SuperTemp is a collection of electrolyte formulations that improve both low and high temperature performance. The electrolytes were discovered as part of a large screening effort involving thousands of electrolyte formulations in NMC cathode-based cells. Target applications include 12V start-stop batteries as a means for under hood vehicle cost reduction.

SuperTemp has since been validated in large format cells.   Importantly, there were no negative impacts on other cell metrics including first cycle capacity, coulombic efficiency, rate performance and importantly, cycle life. While SuperTemp was developed for NMC-based cells for both graphite and LTO anodes, these electrolytes are expected to improve cell performance when used with other popular cathode chemistries too.

Wildcat is interested in licensing SuperTemp and collaborating with industry partners to customize electrolyte solutions.

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