Non-Aqueous Fluorinated Electrolytes for Lithium Batteries
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United States of America
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Nov 28, 2024
app pub date -
May 22, 2023
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May 22, 2023
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Abstract
An electrochemical cell includes a cathode comprising a cathode active material, an anode comprising an anode active material, and an electrolyte comprising a sulfonyl solvent, a terminally fluorinated glycol ether, and a salt. Other electrochemical cells include a cathode, an anode, a separator, and an electrolyte comprising: a lithium salt; a cathode stabilizing additive selected from the group consisting of vinylene carbonate, vinyl ethylene carbonate, LiBF2(C2O4), LiB(C2O4)2, LiPF2(C2O4)2, LiPF4(C2O4), LiPF6, LiAsF6, CsF, CsPF6, Li2(B12X12-iHi), Li2(B10X10-i′Hi′), or a mixture of any two or more thereof, wherein the cathode stabilizing additive is not the same as the lithium salt, wherein each X is independently at each occurrence a halogen, i is an integer from 0 to 12 and i′ is an integer from 0 to 10; and a fluorinated organosulfate compound.
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