Ion conductive layer and methods of forming

Patent metadata

Field	Value
Publication number	US-11984598-B2
Application number	US-202318338781-A
Country	US
Kind code	B2
Filing date	Jun 21, 2023
Priority date	Apr 23, 2020
Publication date	May 14, 2024
Grant date	May 14, 2024

Abstract

An ion conductive layer can include a hygroscopic ion conductive material, such as a halide-based material. In an embodiment, the ion conductive layer can include an organic material, ammonium halide, or a combination thereof.

First claim

What is claimed is:

1. A layer, comprising:
a solid ion conductive material including a halide-based material represented by formula M 3−δ (Me k+ ) f X 3−δ+k*f , wherein −3≤δ<3, 0≤f≤1, k is the valence of Me, 2≤k<6, M includes Li, Me includes a metal element that is different from M, and X includes a halogen, wherein the halide-based material includes at least two metal elements; and
an organic material including poly(vinylidene fluoride), polyisobutylene, or a combination thereof, wherein when the layer comprises a further organic material, the further organic material has a dielectric constant of at most 12,
wherein the solid ion conductive material is at least 50 vol % for a total volume of the layer.

2. The layer of claim 1 , wherein the organic material is at most 10 wt % for a total weight of the layer.

3. The layer of claim 1 , comprising a porosity of at most 10 vol % for a total volume of the layer.

4. The layer of claim 1 , wherein X includes at least one of Cl and Br.

5. The layer of claim 1 , wherein Me includes a rare earth element, In, Al, Zr, or any combination thereof.

6. The layer of claim 1 , wherein Me includes Y, In, or any combination thereof.

7. The layer of claim 1 , wherein the further organic material has an HLB value of at most 10, a Reactivity of at most 20%, or any combination thereof.

8. A multi-layer structure, comprising an electrode overlying the layer of claim 1 .

9. A layer, comprising:
a solid ion conductive material including a halide-based material represented by formula M 3−δ (Me k+ ) f X 3−δ+k*f , wherein −3≤δ<3, 0≤f≤1, k is the valence of Me, 2≤k<6, M includes Li, Me includes a metal element that is different from M, and X includes a halogen, wherein the halide-based material includes at least two metal elements;
a cathode material; and
an organic material including a polymer including a fluoro group, chloro group, or any combination thereof, wherein the polymer has a dielectric constant of at most 12,
wherein the polymer material is at most 10 wt % for a total weight of the layer.

10. The layer of claim 9 , wherein the polymer further comprises one or more groups of —CH 3 , ═CH 2 , —CH 2 —, —CH═, and —C 6 H 5 .

11. The layer of claim 9 , wherein the polymer has an HLB value of 0.

12. The layer of claim 9 , wherein the polymer comprises poly(vinylidene fluoride), polyvinyl chloride, poly(vinylidene fluoride-co-hexafluoropropylene), or any combination thereof.

13. A multi-layer structure, comprising:
an electrolyte layer overlying the layer of claim 9 ,
wherein the electrolyte comprises a solid electrolyte material.

14. The layer of claim 9 , wherein the cathode material comprises one or more of lithium-containing oxides, transition metal fluorides, polyanion materials, fluorinated polyanion materials, transition metal sulfides, transition metal oxyfluorides, transition metal oxysulfides, and transition metal oxynitrides.

15. The layer of claim 9 , wherein the cathode material comprises LiCoO 2 , LiFePO 4 , Li(NiCoAl)O 2 , LiCoO 2 , LiMnPO 4 , LiMn 2 O 4 , LiNi 1/3 Co 1/3 Mn 1/3 O 2 , or any combination thereof.

16. The layer of claim 9 , wherein the solid ion conductive material is at least 50 vol % for a total volume of the layer.

17. The layer of claim 9 , wherein X includes at least one of Cl and Br, and wherein Me includes a rare earth element, a Group 13 element, a Group 4 element, or any combination thereof.

18. The layer of claim 9 , wherein the organic material comprises poly(vinylidene fluoride).

19. A composition, comprising:
a solid ion conductive material including a halide-based material represented by formula M 3−δ (Me k+ ) f X 3−δ+k*f , wherein − 3 ≤δ<3, 0≤f≤1, k is the valence of Me, 2≤k<6, M includes Li, Me includes a metal element that is different from M, and X includes a halogen, wherein the halide-based material includes at least two metal elements; and
an organic material including poly(vinylidene fluoride), polyvinyl chloride, poly(vinylidene fluoride-co-hexafluoropropylene), polyisobutylene, or a combination thereof, wherein when the layer comprises a further organic material, the further organic material has a dielectric constant of at most 12,
wherein the solid ion conductive material is at least 50 vol % for a total volume of the layer.

20. The composition of claim 19 , further comprising an electron conductive material.

Assignees

• Saint Gobain Ceramics

Inventors

• Wang Ruofan
• Takagi Yuto
• Mcgahan Michael
• Ouspenski Vladimir
• Assat Gaurav
• Li Chuanping

Classifications

• H01M4/60 Primary

  of organic compounds · CPC title

• H01M4/366

  as layered products · CPC title

• H01M4/505

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

• H01M4/623

  fluorinated polymers · CPC title

• H01M10/0525

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