Solid-state structures with volatile sintering aids, and methods for fabrication and use thereof
US-2024429439-A1 · Dec 26, 2024 · US
Solid electrolyte sheet, method for manufacturing same, and sodium ion all-solid-state secondary cell
US12438183B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12438183-B2 |
| Application number | US-202016797118-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2020 |
| Priority date | Aug 10, 2015 |
| Publication date | Oct 7, 2025 |
| Grant date | Oct 7, 2025 |
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- Title
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Abstract
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Provided is a thin beta-alumina-based solid electrolyte sheet having a high ion conduction value. The solid electrolyte sheet containing β-alumina and/or β″-alumina and having a thickness of 1 mm or less and a voidage of 20% or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing a solid electrolyte sheet containing β-alumina and/or β″-alumina and having a thickness of 1 mm or less and a voidage of 20% or less, the method comprising the steps of: (a) making raw material powder containing Al 2 O 3 as a main component into a slurry; (b) applying the slurry on a base material and drying the slurry to obtain a green sheet having a thickness of 0.1 to 1.8 mm; and (c) isostatically pressing the green sheet and then firing the green sheet to produce β-alumina and/or β″-alumina; wherein the raw material powder consists of, in % by mole, 65 to 98% Al 2 O 3 , 13.7 to 20% Na 2 O, 5.5 to 10% of MgO, 4.7 to 15% ZrO 2 , 0.2 to 5% Y 2 O 3 . 2. The method for manufacturing a solid electrolyte sheet according to claim 1 , wherein the green sheet is pressed at a pressure of 5 MPa or more and 40 MPa or less.
Assignees
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Classifications
Oxides · CPC title
Pressing at temperatures other than sintering temperatures · CPC title
Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof · CPC title
Yttrium oxide or oxide-forming salts thereof · CPC title
Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina · CPC title
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- What does patent US12438183B2 cover?
- Provided is a thin beta-alumina-based solid electrolyte sheet having a high ion conduction value. The solid electrolyte sheet containing β-alumina and/or β″-alumina and having a thickness of 1 mm or less and a voidage of 20% or less.
- Who is the assignee on this patent?
- Nippon Electric Glass Co
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0562. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).