Ether-based electrolytes are desired for lithium metal batteries owing to their low reduction potentials; however, they suffer from low anodic stability. Strategic methylation of ether solvents is shown to extend their electrochemical stability and facilitate the formation of LiF-rich interphases, enabling high-voltage lithium metal batteries while avoiding the use of fluorinated solvents.
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References
Narayan, R. & Dominko, R. Fluorinated solvents for better batteries. Nat. Rev. Chem. 6, 449–450 (2022). This review summarizes the design and use of fluorinated solvents for advanced batteries.
Huang, Z. et al. A stable lithium–oxygen battery electrolyte based on fully methylated cyclic ether. Angew. Chem. Int. Ed. 58, 2345–2349 (2019). This paper presents the use of a methylated cyclic ether in Li–O2 batteries; hydrogen abstraction was suppressed by the substitution of α-hydrogen atoms with methyl groups.
Park, E. et al. Exploiting the steric effect and low dielectric constant of 1, 2-dimethoxypropane for 4.3 V lithium metal batteries. ACS Energy Lett. 8, 179–188 (2022). This paper reports that methylation of the inner α-hydrogen atoms of DME increases the electrochemical performance of LMBs through steric effects.
Fan, X. et al. Non-flammable electrolyte enables Li-metal batteries with aggressive cathode chemistries. Nat. Nanotechnol. 13, 715–722 (2018). This paper reports all-fluorinated carbonate electrolytes for improving the electrochemical performance of LMBs.
Chen, J. et al. Electrolyte design for LiF-rich solid–electrolyte interfaces to enable high-performance microsized alloy anodes for batteries. Nat. Energy 5, 386–397 (2022). This paper reports a nonfluorinated ether electrolyte for realizing high-performance microsized silicon anodes.
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This is a summary of: Li, A.-M. et al. Methylation enables the use of fluorine-free ether electrolytes in high-voltage lithium metal batteries. Nat. Chem. https://doi.org/10.1038/s41557-024-01497-x (2024).
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Methylation enables high-voltage ether electrolytes for lithium metal batteries. Nat. Chem. (2024). https://doi.org/10.1038/s41557-024-01498-w
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DOI: https://doi.org/10.1038/s41557-024-01498-w
