Redox shuttle additives for lithium-ion batteries
AssigneeUchicago Argonne, LLC
InventorsLu Zhang, Zhengcheng Zhang, Khalil Amine
Life of this patent
Estimating the term…
Abstract
An electro lye includes a compound of Formula I or IA: where each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R3 is independently H, alkyl, alkenyl, aryl, or cycloalkyl; each instance of R4 is independently H, halogen, CN, NO2, phosphate, alkyl, alkenyl, aryl, heteroaryl, or cycloalkyl; x is 1, 2, 3, 4, or 5; y is 1 or 2; and z is 0, 1, 2, 3, or 4.
Claims31
An electrolyte comprising:
- an alkali metal salt;
- a polar aprotic solvent;
- and
- a redox shuttle;
- wherein:
- the redox shuttle comprises:
- an aromatic ring having at least one phosphinyl group, in which the phosphorus atom is bonded directly to the aromatic ring;
- an aromatic ring having at least one phosphate group, in which the phosphorus atom is bonded to the aromatic ring through an oxygen atom;
- or
- a combination of any two or more thereof.
(canceled)
(canceled)
(canceled)
12-17. (canceled)
20-23. (canceled)
25-35. (canceled)
37-38. (canceled)
44-45. (canceled)
(canceled)
A method of preparing an electrolyte comprising:
- combining an alkali metal salt and redox shuttle in a polar aprotic solvent;
- wherein:
- the redox shuttle comprises:
- an aromatic ring having at least one phosphinyl group, in which the phosphorus atom is bonded directly to the aromatic ring;
- an aromatic ring having at least one phosphate group, in which the phosphorus atom is bonded to the aromatic ring through an oxygen atom;
- or
- a combination of any two or more thereof.
49-79. (canceled)
A compound represented by Formula II-1, II-2, II-3, II-4, II-5, or II-6:
81-82. (canceled)
Dependencies are inferred from the claim text.