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US 9,178,249 B2Granted
Electrode stabilizing materials
AssigneeUchicago Argonne, LLC
InventorsKhalil Amine, Ali Abouimrane, Jeffrey S. Moore, Susan A. Odom
Life of this patent
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Abstract
An electrolyte includes a polar aprotic solvent; an alkali metal salt; and an electrode stabilizing compound that is a monomer, which when polymerized forms an electrically conductive polymer. The electrode stabilizing compound is a thiophene, a imidazole, a anilines, a benzene, a azulene, a carbazole, or a thiol. Electrochemical devices may incorporate such electrolytes.
Claims20
An electrolyte comprising:
- a polar aprotic solvent;
- an alkali metal salt;
- and
- an electrode stabilizing compound comprising a monomeric compound, which when polymerized forms an electrically conductive polymer;
- wherein:
- the monomeric compound is represented by formula I:
- R1, R2, R3, and R4 are individually H, F, Cl, Br, I, an alkyl, an alkenyl, an alkynyl, an aryl, or a heteroaryl group;
- at least one of R1, R2, R3, and R4 is an unsubstituted alkyl, an alkenyl, or an alkynyl group;
- and
- at least one of R1, R2, R3, and R4 is a C4-C8 alkyl.
7 more elements
An electrochemical device comprising:
- an anode;
- a cathode;
- and
- an electrolyte comprising
- a polar aprotic solvent;
- an alkali metal salt;
- and
- an electrode stabilizing compound comprising a monomeric compound, which when polymerized forms an electrically conductive polymer;
- wherein:
- the monomeric compound is represented by formula I:
- R1, R2, R3, and R4 are individually H, F, Cl, Br, I, an alkyl, an alkenyl, an alkynyl, an aryl, or a heteroaryl group;
- at least one of R1, R2, R3, and R4 is an alkyl, an alkenyl, or an alkynyl group;
- and
- at least one of R1, R2, R3, and R4 is a C4-C8 alkyl.
11 more elements
An electrolyte comprising:
- a polar aprotic solvent;
- an alkali metal salt;
- and
- an electrode stabilizing compound comprising a monomeric compound, which when polymerized forms an electrically conductive polymer;
- wherein:
- the monomeric compound is represented by formula I:
- R1, R2, R3, and R4 are individually H, F, Cl, Br, I, an alkyl, an alkenyl, an alkynyl, an aryl, or a heteroaryl group;
- at least one of R1, R2, R3, and R4 is an unsubstituted alkyl, an alkenyl, or an alkynyl group;
- and
- at least one of R2 and R3 is a C1-C12 alkyl.
7 more elements
An electrochemical device comprising:
- an anode;
- a cathode;
- and
- an electrolyte comprising
- a polar aprotic solvent;
- an alkali metal salt;
- and
- an electrode stabilizing compound comprising a monomeric compound, which when polymerized forms an electrically conductive polymer;
- wherein:
- the monomeric compound is represented by formula I:
- R1, R2, R3, and R4 are individually H, F, Cl, Br, I, an alkyl, an alkenyl, an alkynyl, an aryl, or a heteroaryl group;
- at least one of R1, R2, R3, and R4 is an alkyl, an alkenyl, or an alkynyl group;
- and
- at least one of R2 and R3 is a C1-C12 alkyl.
11 more elements
Dependencies are inferred from the claim text.