Electrochemical water splitting cell
US-2024003023-A1 · Jan 4, 2024 · US
Air electrode catalyst for air secondary battery and air secondary battery
US11495804B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11495804-B2 |
| Application number | US-202016781192-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 4, 2020 |
| Priority date | Feb 4, 2019 |
| Publication date | Nov 8, 2022 |
| Grant date | Nov 8, 2022 |
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- Title
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Abstract
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An air electrode catalyst for an air secondary battery includes a pyrochlore-type composite oxide having two or more crystal structures having a different amount of oxygen. A battery, according to some embodiments, includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a container accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes the air electrode catalyst. The air electrode catalyst may have a pyrochlore-type composite oxide having a crystal structure represented by Bi2Ru2O6.92 and a crystal structure represented by Bi2Ru2O7.33.
First claim
Opening claim text (preview).
What is claimed is: 1. An air electrode catalyst for an air secondary battery, comprising: a pyrochlore-type composite oxide that is bismuth ruthenium oxide represented by the general formula: Bi 2-x Ru 2-y O 7-z , wherein x, y, and z satisfy relations of 0≤x≤1, 0≤y≤1 and −0.5≤z≤0.5 respectively, the bismuth ruthenium oxide having two or more crystal structures having a different amount of oxygen; and wherein the pyrochlore-type composite oxide at least has a crystal structure represented by Bi 2 Ru 2 O 6.92 and a crystal structure represented by Bi 2 Ru 2 O 7.33 . 2. An air secondary battery comprising: an electrode group including an air electrode and a negative electrode stacked with a separator therebetween; and a container accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes the air electrode catalyst for an air secondary battery according to claim 1 . 3. The air secondary battery according to claim 2 , wherein the negative electrode includes a hydrogen storage alloy.
Assignees
Inventors
Classifications
- H01M4/9016Primary
Oxides, hydroxides or oxygenated metallic salts · CPC title
Hydrogen absorbing alloys · CPC title
Energy storage using batteries · CPC title
Positive electrodes · CPC title
- H01M12/08Primary
composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title
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- What does patent US11495804B2 cover?
- An air electrode catalyst for an air secondary battery includes a pyrochlore-type composite oxide having two or more crystal structures having a different amount of oxygen. A battery, according to some embodiments, includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a container accommodating the electrode group along with an…
- Who is the assignee on this patent?
- Fdk Corp, Japan Metals And Chemicals Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/9016. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 08 2022 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).