Electrolyte material for solid oxide fuel cell and method for producing precursor therefor
US-2021234183-A1 · Jul 29, 2021 · US
Electrolyte membrane, membrane electrode assembly, electrochemical cell, and method for manufacturing electrolyte membrane
US12401053B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12401053-B2 |
| Application number | US-202217806501-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2022 |
| Priority date | Jan 7, 2020 |
| Publication date | Aug 26, 2025 |
| Grant date | Aug 26, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
The electrolyte membrane of the present disclosure includes a plurality of crystal domains. At least one of the crystal domains includes a first crystal subdomain and a second crystal subdomain. Each of the first crystal subdomain and the second crystal subdomain includes Ba, Zr, M, and O. M is a trivalent element. The concentration of M in the first crystal subdomain is different from the concentration of M in the second crystal subdomain.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrolyte membrane comprising: a plurality of crystal domains, wherein; at least one of the crystal domains includes a first crystal subdomain and a second crystal subdomain, each of the first crystal subdomain and the second crystal subdomain includes Ba, Zr, M, and O, M is a trivalent element, a concentration of M in the first crystal subdomain is different from a concentration of M in the second crystal subdomain, the first crystal subdomain is represented by a chemical formula of BaZr 1-a Yb a O 3-δ , and the second crystal subdomain is represented by a chemical formula of BaZr 1-b Yb b O 3-δ , wherein 0<a<1.0<b<1.0<δ<1, and (a−b)≥0.28 are satisfied. 2. The electrolyte membrane according to claim 1 , wherein the concentration of M in the first crystal subdomain is higher than the concentration of M in the second crystal subdomain, and the first crystal subdomain is surrounded by the second crystal subdomain. 3. The electrolyte membrane according to claim 1 , wherein a mathematical expression (a−b)≥0.30 is satisfied. 4. The electrolyte membrane according to claim 3 , wherein a mathematical expression (a−b)≥0.35 is satisfied. 5. A membrane electrode assembly comprising: the electrolyte membrane according to claim 1 ; and an electrode provided on the electrolyte membrane. 6. An electrochemical cell comprising: an electrode; the electrolyte membrane according to claim 1 ; and a counter electrode, wherein the electrolyte membrane is arranged between the electrode and the counter electrode.
Assignees
Inventors
Classifications
- H01M8/1246Primary
the electrolyte consisting of oxides · CPC title
Perovskite structure ABO3 · CPC title
Products with a concentration gradient · CPC title
Oxides · CPC title
characterised by the electrolyte material (H01M8/12 takes precedence) · CPC title
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- What does patent US12401053B2 cover?
- The electrolyte membrane of the present disclosure includes a plurality of crystal domains. At least one of the crystal domains includes a first crystal subdomain and a second crystal subdomain. Each of the first crystal subdomain and the second crystal subdomain includes Ba, Zr, M, and O. M is a trivalent element. The concentration of M in the first crystal subdomain is different from the conc…
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/1246. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 26 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).