IP Library Granted Patent US 12,125,979
Granted Patent B2
US 12,125,979 · App. 17/437,778 · Granted Oct 22, 2024

Layered structure for solid-state batteries and process of forming the same

Inventors: Ping Liu (San Diego, CA); Yejing Li (San Diego, CA)
Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
H01M10/0565H01M4/134H01M10/0562H01M50/414H01M50/434H01M50/449H01M50/497H01M2300/0071H01M2300/008H01M2300/0082H01M2300/0094
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Quick Facts
Patent No.
US 12,125,979
App. No.
17/437,778
Granted
Oct 22, 2024
Kind
B2
Abstract

A solid-state battery and process of forming the same is provided. The solid-state battery includes a first metal electrode. The solid-state battery includes a first mixed conductor disposed on the first metal electrode. The first mixed conductor includes a mixture of ionic and electronic conductors. The solid-state battery includes a pure ionic conductor disposed on the first mixed conductor. The solid-state battery includes a second metal electrode disposed on top of the pure ionic conductor.

Claims (37)

1. A solid-state battery comprising:

a first metal electrode;

a first mixed conductor disposed on the first metal electrode, wherein the first mixed conductor comprises a mixture of ionic and electronic conductors;

a pure ionic conductor disposed on the first mixed conductor; and

a second metal electrode disposed on top of the pure ionic conductor.

2. The solid-state battery of claim 1 , further comprising a second mixed conductor disposed between the pure ionic conductor and the second metal electrode, wherein the second mixed conductor comprises the mixture of ionic and electronic conductors.

3. The solid-state battery of claim 1 , wherein the first metal electrode and the second metal electrode comprise one or more of Li, a metallic foil, and a metallic powder.

4. The solid-state battery of claim 1 , wherein the mixture of ionic and electronic conductors comprises one or more of a sulfide-based electrolyte, an oxide-based electrolyte, a hydride-based electrolyte, a halide-based electrolyte, a borate-based electrolyte, a phosphate-based electrolyte, a thin film, a polymer-based electrolyte, a carbon-based material, and metallic-based materials.

5. The solid-state battery of claim 4 , wherein the polymer-based electrolyte comprises one or more of a polymer, polyethylene oxide (PEO), polyethylene sulfide (PES), polyphenylene oxide (PPO) and polyacrylonitrile (PAN), polystyrene (PS), polymethacrylates (PMA), poly(ethylene glycol-methyl methacrylate)(PEG-MMA), poly(vinyl alcohol) (PVA) and salt of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium bis(fluorosulfonyl)amide (LiFSI), lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), and lithium perchlorate (LiCIO4).

6. The solid-state battery of claim 1 , wherein the pure ionic conductor comprises one or more of a sulfide-based electrolyte, an oxide-based electrolyte, a hydride-based electrolyte, a halide-based electrolyte, a borate-based electrolyte, a phosphate-based electrolyte, a thin film, and a polymer-based electrolyte.

7. The solid-state battery of claim 6 , wherein the polymer-based electrolyte comprises one or more of a polymer, polyethylene oxide (PEO), polyethylene sulfide (PES), polyphenylene oxide (PPO) and polyacrylonitrile (PAN), polystyrene (PS), polymethacrylates (PMA), poly(ethylene glycol-methyl methacrylate)(PEG-MMA), poly(vinyl alcohol) (PVA) and salt of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium bis(fluorosulfonyl)amide (LiFSI), lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), and lithium perchlorate (LiCIO4).

8. The solid-state battery of claim 1 , wherein the first metal electrode and the second metal electrode comprise Li, wherein the pure ionic conductor comprises Li 3 PS 4 /S/PES@Kevlar, and wherein the first mixed conductor comprises PEO/LiTFSI/CNTs.

9. A solid-state battery comprising:

a first metal electrode;

a first mixed conductor disposed on the first metal electrode, wherein the first mixed conductor comprises a mixture of ionic and electronic conductors;

a pure ionic conductor disposed on the first mixed conductor;

a second mixed conductor disposed on the pure ionic conductor, wherein the second mixed conductor comprises the mixture of ionic and electronic conductors; and

a second metal electrode disposed on top of the second mixed conductor.

10. The solid-state battery of claim 9 , wherein the first metal electrode comprises one or more of Li, a metallic foil, and a metallic powder.

11. The solid-state battery of claim 9 , wherein the mixture of ionic and electronic conductors comprises one or more of a sulfide-based electrolyte, an oxide-based electrolyte, a hydride-based electrolyte, a halide-based electrolyte, a borate-based electrolyte, a phosphate-based electrolyte, a thin film, a polymer-based electrolyte, a carbon-based material, and metallic-based materials.

12. The solid-state battery of claim 9 , wherein the pure ionic conductor comprises one or more of a sulfide-based electrolyte, an oxide-based electrolyte, a hydride-based electrolyte, a halide-based electrolyte, a borate-based electrolyte, a phosphate-based electrolyte, a thin film, and a polymer-based electrolyte.

13. The solid-state battery of claim 9 , wherein the first metal electrode and the second metal electrode comprise Li, wherein the pure ionic conductor comprises Li 3 PS 4 /S/PES@Kevlar, and wherein the first mixed conductor and the second mixed conductor comprise PEO/LiTFSI/CNTs.

14. A solid-state battery comprising:

a first metal electrode;

a first mixed conductor disposed on the first metal electrode, wherein the first mixed conductor comprises a mix-conductor;

a pure ionic conductor disposed on the first mixed conductor;

a second mixed conductor disposed on the pure ionic conductor; and

a second metal electrode disposed on top of the second mixed conductor.

15. The solid-state battery of claim 14 , wherein the second mixed conductor comprises a mixture of ionic and electronic conductors.

16. The solid-state battery of claim 14 , wherein the second mixed conductor comprises the mix-conductor.

17. The solid-state battery of claim 16 , wherein the mix-conductor comprises one or more of a Li-M-O structure and a Li-M-S structure.

18. The solid-state battery of claim 14 , wherein the second mixed conductor comprises a liquid electrolyte.

19. The solid-state battery of claim 18 , wherein the liquid electrolyte comprises one or more of a carbonate-based electrolyte, ether-based electrolyte, and ester-based electrolyte.

20. The solid-state battery of claim 14 , wherein the first metal electrode comprises one or more of Li, a metallic foil, and a metallic powder.

21. The solid-state battery of claim 15 , wherein the mixture of ionic and electronic conductors of the second mixed conductor comprises one or more of a sulfide-based electrolyte, an oxide-based electrolyte, a hydride-based electrolyte, a halide-based electrolyte, a borate-based electrolyte, a phosphate-based electrolyte, a thin film, a polymer-based electrolyte, a carbon-based material, and metallic-based materials.

22. The solid-state battery of claim 14 , wherein the pure ionic conductor comprises one or more of a sulfide-based electrolyte, an oxide-based electrolyte, a hydride-based electrolyte, a halide-based electrolyte, a borate-based electrolyte, a phosphate-based electrolyte, a thin film, and a polymer-based electrolyte.

23. The solid-state battery of claim 14 , wherein the first metal electrode and the second metal electrode comprise Li, wherein the pure ionic conductor comprises Li 3 PS 4 /S/PES@Kevlar, and wherein the second mixed conductor comprises PEO/LiTFSI/CNTs.

Assignments (2)
CONFIRMATORY LICENSE Recorded Aug 28, 2024
From: UNIVERSITY OF CALIFORNIA, SAN DIEGO
To: US DEPARTMENT OF ENERGY
Reel/Frame 068792/0676 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 9, 2021
From: LIU, PING; LI, YEJING
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 057432/0701 →
Continuity (1)
Related Publication 20220158235A1 · May 19, 2022