Solid-State Electrolytes Based on Lithium Halides for All-Solid-State Lithium-ion Battery Operating at Elevated Temperatures

Patent metadata

Field	Value
Publication number	US-2020036038-A1
Application number	US-201916589429-A
Country	US
Kind code	A1
Filing date	Oct 1, 2019
Priority date	May 16, 2018
Publication date	Jan 30, 2020
Grant date	—

Abstract

The present disclosure relates to a manufacturing process of the solid-state glass-ceramic electrolytes, known in the art as antiperovskites. Specifically, the disclosure is focused on manufacturing of the solid-state electrolyte from the corresponding precursors directly on the active electrode surface of an electrochemical device, specifically anode or cathode of the lithium-ion or lithium metal batteries.

First claim

What is claimed is:

1 . A method of creating a solid-state glass-ceramic electrolyte, comprising the step of:
manufacturing an electrochemical device, specifically a battery with a metal with low adhesion to the solid-state glass-ceramic electrolyte.

2 . The method of claim 1 , further comprising the step of:
demonstrating a low adhesion between the solid-state glass-ceramic electrolyte and the nickel surface, more preferably a nickel foil.

3 . The method of claim 1 , further comprising the step of:
separating, by peeling off, the metal foil in the end of the manufacturing process with low adhesion to the solid-state glass-ceramic electrolyte and the nickel foil.

4 . The method of claim 1 , further comprising the step of:
melting, on the surface of the metal foil, the inorganic precursors of the solid-state glass-ceramic electrolyte.

5 . The method of claim 2 , wherein lithium undoped or doped antiperovskites and their polymorphs with a general formula Li3−xMx C1−yCy′A1−zA′ z , where M is hydrogen, or a metal from the first three groups of the periodic table of elements, x is defined by the charge of the metal, C and C′ are chalcogens (O, S, Se), and A and A′ are halogens (F, Cl, Br, I) or positive ions like BH4+ and BF4+, can be used for the disclosed manufacturing process.

6 . The method of claim 2 , further comprising the step of:
melting, on the metal foil surface in moisture-free inert atmosphere or in vacuum, the inorganic precursors for the solid-state glass-ceramic electrolyte.

7 . The method of claim 2 , further comprising the step of:
melting, on the metal foil surface in a moisture-free controlled humidity atmosphere, such as dry air, argon, helium, nitrogen, or in vacuum the solid-state glass-ceramic electrolyte inorganic precursors.

8 . The method of claim 2 , further comprising the step of:
melting the electrolyte inorganic precursors, directly on the said metal foil and brought in direct contact with electrodes of the electrochemical cell, such as aluminum-supported cathode or anode including copper-supported various graphite-, silicon-, or metal oxide-based nanocomposites.

9 . The method of claim 2 , further comprising the step of:
bringing the electrolyte inorganic precursors in direct contact with aluminum-supported cathode or copper-supported anode and compressing forming a fully integrated electrode-electrolyte multilayer architecture half-cell further used to construct a full cell.

10 . The method of claim 2 , further comprising the step of:
removing quickly from the heat source for fast cooling the fully integrated electrode-electrolyte architecture.

11 . The method of claim 2 , further comprising the step of:
removing the metal foil of the fully integrated and quickly cooled multilayer configuration.

12 . The method of claim 2 , further comprising the step of:
removal of the metal foil from the fully integrated electrode-electrolyte architecture with the electrolyte layer free of grain boundary morphology.

13 . A solid-state glass-ceramic electrolyte, comprising:
a metal foil layer having an upper and lower surface; a solid-state electrolyte layer compressed upon the upper surface of the metal foil; an anode layer coupled to the electrolyte layer.

14 . The solid-state glass-ceramic electrolyte of claim 14 , wherein the solid-state electrolyte layer is melted onto the upper surface of the metal foil layer.

15 . The solid-state glass ceramic electrolyte of claim 14 , wherein the metal foil is comprised of nickel.

16 . The solid-state glass ceramic electrolyte of claim 14 , wherein the metal foil does not adhere to the solid-state electrolyte layer.

17 . A method of manufacturing an antiperovskite, comprising the steps of:
melting an electrolyte onto an upper surface of a metal foil; compressing an anode layer to the electrolyte on a surface opposite of the metal foil; cooling the electrolyte; and delaminating the metal foil from the electrolyte.

18 . The method of claim 17 , wherein the metal foil is made of nickel and has a low adhesion to the electrolyte, which is a solid-state glass ceramic electrolyte.

19 . The method of claim 17 , wherein inorganic precursors of the solid-state glass-ceramic electrolyte are melted on the surface of the nickel foil.

20 . The method of claim 19 , wherein the solid-state glass-ceramic electrolyte comprise lithium undoped or doped antiperovskites and their polymorphs with a general formula Li3−xMx C1−yCy′A1−zA′z, where M is hydrogen, or a metal from the first three groups of the periodic table of elements, x is defined by the charge of the metal, C and C′ are chalcogens (O, S, Se), and A and A′ are halogens (F, Cl, Br, I) or positive ions like BH4+ and BF4+.

Assignees

• South Dakota Board Of Regents

Inventors

• Smirnova Alevtina
• Dondelinger Matthew
• Swanson Joel

Classifications

• H01M2300/002

  Inorganic electrolyte · CPC title

• H01M2300/0068

  inorganic · CPC title

• H01M10/0562 Primary

  Solid materials · CPC title

• H01M4/661

  Metal or alloys, e.g. alloy coatings (H01M4/669 take precedence) · CPC title

• H01M10/052

  Li-accumulators · CPC title