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US 11,108,086 B2Granted
Electrolyte for high voltage lithium-ion batteries
AssigneeUchicago Argonne, LLC
InventorsKhalil Amine, Chi Cheung Su, Meinan He, Tianyuan Ma
Life of this patent
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Abstract
An electrolyte, electrochemical device, battery, capacitor, and/or the like include a salt; and a fluorinated organosulfate compound represented by Formula I: wherein, R1 is H, OR3, alkyl, alkenyl, alkynyl, aralkyl, or silyl; R2 is H, OR3, alkyl, alkenyl, alkynyl, aralkyl, or silyl; and R3 is H, alkyl, alkenyl, alkynyl, aryl, heterocyclyl, heteroaryl, or siloxy; or where R1 and R2 join together to form a cyclic compound incorporating the —O—S(O)2—O— group; wherein at least one R1 and R2 is fluorinated.
Claims11
An electrolyte comprising:
- a salt;
- a solvent comprising 2,2,2-(trifluoroethyl)methyl carbonate;
- and
- an additive comprising 4-(trifluoromethyl)-1,3,2-dioxathiolane 2,2-dioxide.
1 more element
Dependencies are inferred from the claim text.