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

Patent metadata

Field	Value
Publication number	US-2024145714-A1
Application number	US-202217975203-A
Country	US
Kind code	A1
Filing date	Oct 27, 2022
Priority date	Oct 27, 2022
Publication date	May 2, 2024
Grant date	—

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

1 . A lithium-ion battery comprising 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 , comprising an anode that 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 , comprising a cathode that comprises the compound.

13 . The lithium-ion battery of claim 12 , wherein the cathode comprises one or more of LMFP, LMO, LiMO 2 , Li 1+x M 1−x O 2 , and Li 2 MnO 3 .

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

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

• B60L50/60

  using power supplied by batteries (in combination with fuel cells B60L50/75) · CPC title

• H01M50/449

  having a layered structure · CPC title

• H01M50/446

  Composite material consisting of a mixture of organic and inorganic materials · CPC title

• H01M50/431

  Inorganic material · CPC title

• H01M4/13

  Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title