Ionically conductive glass preform

Patent metadata

Field	Value
Publication number	US-2024092676-A1
Application number	US-202318463206-A
Country	US
Kind code	A1
Filing date	Sep 7, 2023
Priority date	Sep 9, 2022
Publication date	Mar 21, 2024
Grant date	—

Abstract

An ionically conductive glass (or glassy) monolithic preform having a certain shape, size, and dimension may be made from a monolithic precursor material (e.g., an ingot or boule of ion conductive glass), generally of a different shape and size.

First claim

What is claimed is:

1 . A method of making an ionically conductive glass preform, the method comprising the steps of:
a. providing an inorganic ion conductive glass monolith as a precursor material, the monolithic glass precursor having a certain shape, size, dimension, glass transition temperature (Tg), and glass melting temperature (T m ); b. providing a rigid operably collapsible hollow structure having an inner and outer surface, c. disposing the glass precursor monolith inside the rigid operably collapsible hollow structure; d. pressing and heating the glass precursor monolith while it is inside the collapsible hollow structure, wherein the temperature of the glass precursor monolith during pressing is at or above Tg, wherein the pressing and heating operation uniformly collapses the hollow structure and therewith transforms the glass precursor monolith into a monolithic glass preform having a certain shape and dimension that is different than that of the glass precursor monolith.

2 . The method of claim 1 wherein the monolithic glass precursor is a glass boule.

3 . The method of claim 2 wherein the glass boule has a cylindrical shape, with a substantially round cross section and further wherein the monolithic glass preform has a shape that is substantially rectangular and bar-like, with a substantially rectangular cross section.

4 . The method of claim 3 wherein the rigid operably collapsible hollow structure is in the form of a tube having a substantially circular cross section, with a cross sectional diameter capable of receiving the glass boule with a snug fit.

5 . The method of claim 1 wherein an inner liner material is disposed inside the rigid collapsible hollow structure and therein serves as interlayer between the inorganic glass precursor and the inner surface of the hollow structure.

6 . The method of claims 1 or 5 wherein the rigid collapsible hollow structure is an organic polymeric material.

7 . The method of claim 6 wherein the organic polymeric material is a fluorinated polymer.

8 . The method of 5 where the organic polymeric material is a not a fluorinated polymer and chemically incompatible with the inorganic glass at or near Tg.

9 . The method of claim 5 wherein the inner liner is a fluorinated polymeric material.

10 . The method of claim 1 wherein the thickness of the hollow structure has a wall thickness that is selected to be sufficiently rigid to maintain its shape as a hollow structure at room temperature and sufficiently thin to allow the hollow structure to uniformly collapse to the desired shape of the final preform when heated to a temperature above Tg.

Assignees

• Polyplus Battery Co Inc

Inventors

• Visco Steven J
• Nimon Vitaliy
• Petrov Alexei
• Nimon Yevgeniy S
• Katz Bruce D

Classifications

• H01M4/628

  Inhibitors, e.g. gassing inhibitors, corrosion inhibitors · CPC title

• H01M4/382

  Lithium (H01M4/405 takes precedence) · CPC title

• H01M2300/0071

  Oxides · CPC title

• H01M10/0562

  Solid materials · CPC title

• C03B23/0013 Primary

  by pressing (C03B21/04, C03B23/02, C03B23/04, C03B23/18, C03B23/26 take precedence) · CPC title