US 12,454,478 B2
Ionically conductive glass preform
Steven J. Visco, Berkeley, CA (US); Vitaliy Nimon, Berkeley, CA (US); Alexei Petrov, Berkeley, CA (US); Yevgeniy S. Nimon, Berkeley, CA (US); and Bruce D. Katz, Berkeley, CA (US)
Assigned to PolyPlus Battery Company, Berkeley, CA (US)
Filed by PolyPlus Battery Company, Berkeley, CA (US)
Filed on Sep. 7, 2023, as Appl. No. 18/463,206.
Claims priority of provisional application 63/496,894, filed on Apr. 18, 2023.
Claims priority of provisional application 63/375,212, filed on Sep. 9, 2022.
Prior Publication US 2024/0092676 A1, Mar. 21, 2024
Int. Cl. C03B 23/00 (2006.01)
CPC C03B 23/0013 (2013.01) 10 Claims
OG exemplary drawing
 
1. A method of making an ionically conductive glass preform, the method comprising:
a. providing an inorganic ion conductive glass monolith as a precursor material, the glass precursor monolith having a precursor shape, size, dimension, glass transition temperature (Tg), and glass melting temperature (Tm);
b. providing a collapsible hollow structure having a wall with an inner and outer surface;
c. disposing the glass precursor monolith inside the collapsible hollow structure; and
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 the precursor Tg, wherein the pressing and heating operation uniformly collapses the hollow structure and thereby transforms the glass precursor monolith into a monolithic glass preform having a preform shape and dimension different than that of the glass precursor monolith;
wherein an inner liner material is disposed inside the collapsible hollow structure and thereby serves as an interlayer between the glass precursor monolith and the inner wall surface of the collapsible hollow structure.