Mn+1AX carbide additive materials for lithium-ion batteries

Patent metadata

Field	Value
Publication number	US-12424630-B2
Application number	US-202217975203-A
Country	US
Kind code	B2
Filing date	Oct 27, 2022
Priority date	Oct 27, 2022
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

Particular embodiments may provide a lithium-ion battery comprising a MAX compound to prevent and/or decrease Manganese dissolution. In some embodiments, the MAX compound comprises the formula Mn+1AXn, wherein M is an early transition metal atom, n is an integer from 1 to 3, A is a group 13 or group 14 element, and X is C or N.

First claim

The invention claimed is:

1. A lithium-ion battery comprising a cathode comprising manganese; an anode; a separator; and a non-aqueous liquid electrolyte;
wherein the anode, cathode or separator includes a compound of formula M n+1 AX n ,
wherein:
M is an early transition metal atom;
n is an integer from 1 to 3;
A is a group 13 or group 14 element; and
X is C or N.

2. The lithium-ion battery of claim 1 , wherein M is Cr, Ti, or Zr.

3. The lithium-ion battery of claim 1 , wherein A is Al or Si, and X is C.

4. The lithium-ion battery of claim 1 , wherein n is 1 or 2.

5. The lithium-ion battery of claim 1 , wherein the compound is Cr 2 AlC, Ti 3 SiC 2 or Zr 2 AlC.

6. The lithium-ion battery of claim 1 , wherein the compound is V 2 AlC or Ti 3 AlC 2 .

7. The lithium-ion battery of claim 1 , wherein the compound is Nb 2 AlC, Nb 3 AlC 2 , Nb 4 AlC 3 , or V 4 AlC 3 .

8. The lithium-ion battery of claim 1 , the anode comprises the compound.

9. The lithium-ion battery of claim 8 , wherein the compound is mixed with anode active material of the anode.

10. The lithium-ion battery of claim 8 , comprising:
a first layer comprising anode active material of the anode; and
a second layer adjacent the first layer comprising the compound.

11. The lithium-ion battery of claim 8 , wherein the anode comprises graphite and/or silicon.

12. The lithium-ion battery of claim 1 , the cathode comprises the compound.

13. The lithium-ion battery of claim 12 , wherein the cathode comprises one or more of lithium iron manganese phosphate, lithium manganese oxide, and Li 2 MnO 3 .

14. The lithium-ion battery of claim 1 , the separator comprises the compound.

15. The lithium-ion battery of claim 1 , wherein the compound is deposited as a film.

16. The lithium-ion battery of claim 1 , wherein the compound has a P6 3 space group.

17. The lithium-ion battery of claim 1 , wherein the compound comprises a layered structure.

18. The lithium-ion battery of claim 17 , wherein the compound comprises edge-sharing, distorted XM 6 octahedra interleaved by single planar layers of A.

19. The lithium-ion battery of claim 1 , wherein the compound comprises 0.1 to 10 wt. % of the lithium-ion battery.

20. An electric vehicle system comprising the lithium-ion battery of claim 1 .

Assignees

• Rivian Ip Holdings Llc

Inventors

• Kim Soo
• Kim Yumi
• You Byoungchul
• Hayner Cary Michael
• Kim Tae Kyoung
• Park Ki Tae

Classifications

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M2004/027

  Negative electrodes · CPC title

• H01M4/505

  of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title