In our recent work, we introduce a strategy to enhance battery performance without relying on high fractions of fluorinated species in electrolytes, thus reducing both the environmental footprint and cost of high-energy batteries.
By incorporating very low fractions (∼0.1 wt%) of readily reducible fluorinated cations into the electrolyte and leveraging electrostatic attraction, we can generate a significant concentration of these cations at the anode surface.
This approach allows us to form a fluorine-rich SEI, enabling the stable cycling of Li-metal full cells with high-voltage cathodes.
Our method presents a general strategy for delivering desired chemical species to battery anodes through electrostatic attraction, while using minimal amounts of additives.
This work, led by my PhD student Nathan Hong, is the result of a fruitful collaboration with the teams of Jeremy Feldblyum, Netanel Shpigel and Oleg Borodin.
Link to the paper in the comment below ⤵
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1wCan't wait to see what you guys in the lab are up to!