Granted Patent B2

US 12,401,018 · App. 17/596,561 · Granted Aug 26, 2025

Inventor: Paige L. Johnson (Tulsa, OK)

Assignee: HHeLi, LLC

H01M4/131C01G23/04C01G49/02C01G51/82H01M4/364H01M4/483H01M4/505H01M4/523H01M4/525H01M10/0525H01M10/0562C01P2002/85C01P2004/60C01P2006/40

Abstract

Claims (28)

1. A battery electrode active material comprising:

a solid metal oxide nanomaterial that is surface functionalized with an electron-withdrawing group to be acidic, having a pH<5, but not superacidic, having a Hammett function H 0 −12; and

a non-acidic metal oxide;

the pH measured when a dried form of the solid metal oxide nanomaterial is suspended in water at 5 wt %.

2. The battery electrode active material of claim 1 , wherein the electron-withdrawing group is selected from the group consisting of Cl, Br, BO 3 , SO 4 , PO 4 , CH 3 COO, C 2 O 4 , and C 6 H 5 O 7 .

3. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial is tin oxide.

4. The battery electrode active material of claim 1 , wherein the non-acidic metal oxide is one of a lithium manganese oxide, a lithium manganese nickel oxide, and a manganese nickel oxide.

5. The battery electrode active material of claim 1 , wherein the non-acidic metal oxide is one of a lithium titanium oxide, a titanium oxide, a lithium iron phosphate, an iron phosphate; a lithium nickel cobalt aluminum oxide, a nickel cobalt aluminum oxide, a lithium nickel manganese cobalt oxide, and a nickel manganese cobalt oxide.

6. The battery electrode active material of claim 1 , wherein the non-acidic metal oxide is iron disulfide.

7. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial comprises less than 8 percent w/w of the battery electrode active material.

8. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial includes at least one particle dimension of less than 100 nm in size.

9. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial is in a form of M m O x /G, where M m is a metal, O x is total oxygen, M m O x is a metal oxide, G is at least one electron withdrawing surface group, and / distinguishes between the metal oxide and the electron-withdrawing surface group, m being at least 1 and no greater than 5, x being at least 1 and no greater than 21.

10. The battery electrode active material of claim 1 , wherein the battery electrode active material is cathodic active material.

11. A battery comprising:

a cathode;

an anode; and

a separator between the anode and cathode;

wherein the cathode further comprises:

a first quantity of a solid metal oxide nanomaterial that is surface functionalized with an electron-withdrawing group to be acidic, having a pH<5, but not superacidic, having a Hammett function H 0 >−12; and

a second quantity of a non-acidic metal oxide.

12. The battery of claim 11 wherein the solid metal oxide nanomaterial is in a form of M m O x /G, where M m is a metal, O x is total oxygen, M m O x is a metal oxide, G is at least one electron withdrawing surface group, and / distinguishes between the metal oxide and the electron-withdrawing surface group, m being at least 1 and no greater than 5, x being at least 1 and no greater than 21.

13. The battery of claim 11 , wherein the first quantity is about 8% w/w or less of a sum of the first and second quantity.

14. The battery of claim 11 , wherein the first quantity is about 10% w/w or less of a sum of the first and second quantity.

15. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial comprises 10% w/w or less of the battery electrode active material.

16. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial is in a form of SnOx/G, where Sn is tin, Ox is total oxygen, x equals 1 or 2, G is at least one electron withdrawing surface group, and/distinguishes between the SnOx and the at least one electron-withdrawing surface group.

17. The battery electrode active material of claim 1 , wherein the solid metal oxide nanomaterial is in a form of MnOx/G, where Mn is a metal manganese, Ox is total oxygen, x equals 2, G is at least one electron withdrawing surface group, and/distinguishes between the MnOx and the at least one electron-withdrawing surface group.

18. The battery of claim 11 , wherein the solid metal oxide nanomaterial is in a form of SnOx/G, where Sn is tin, Ox is total oxygen, x equals 1 or 2, G is at least one electron withdrawing surface group, and/distinguishes between the SnOx and the at least one electron-withdrawing surface group.

19. The battery of claim 11 , wherein the solid metal oxide nanomaterial is in a form of MnOx/G, where Mn is a metal manganese, Ox is total oxygen, x equals 2, G is at least one electron withdrawing surface group, and / distinguishes between the MnOx and the at least one electron-withdrawing surface group.

Assignments (1)

Continuity (2)

References Cited (188)