Bio‐Based Solid Electrolytes Bearing Cyclic Carbonates for Solid‐State Lithium Metal Batteries
(2022) ChemSusChem — Vol. 15, n° 18 (2022)
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ChemSusChem-2022-Raj-BioBasedSolidElectrolytesBearingCyclicCarbonatesforSolidStateLithiumMetalBatteries.pdf
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- Abstract
- Green resources for lithium-based batteries excite many researchers due to their eco-friendly nature. In this work, a sustainable bio-based solid-state electrolyte was developed based on carbonated soybean oil (CSBO), obtained by organocatalyzed coupling of CO2 to epoxidized soybean oil. CSBO coupled with lithium bis(trifluoromethanesulfonyl)imide salt on a bio-based cellulose separator resulted in free-standing membranes. Those membranes on electrochemical measurements exhibited ionic conductivity of around 10−3 S cm−1 at 100 °C and around 10−6 S cm−1 at room temperature with wide electrochemical stability window (up to 4.6 V vs. Li/Li+) and transference number up to 0.39 at RT. Further investigations on the galvanostatic charge-discharge of LiFePO4 cathodes with CSBO-based electrolyte membranes and lithium metal anodes delivered the gravimetric capacity of 112 and 157 mAh g−1 at RT and 60 °C, respectively, providing a promising direction to further develop bio-based solid electrolytes for sustainable solid-state lithium batteries.
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Raj, A., Panchireddy, S., Grignard, B., Detrembleur, C., & Gohy, J.-F. (2022). Bio‐Based Solid Electrolytes Bearing Cyclic Carbonates for Solid‐State Lithium Metal Batteries. ChemSusChem, 15(18). https://doi.org/10.1002/cssc.202200913 (Original work published 2022)