Ultra-high specific energy cathode materials for lithium-ion batteries and methods for producing the same
US-2024186483-A1 · Jun 6, 2024 · US
Air battery
US10177426B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10177426-B2 |
| Application number | US-201514879766-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2015 |
| Priority date | Oct 9, 2014 |
| Publication date | Jan 8, 2019 |
| Grant date | Jan 8, 2019 |
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Abstract
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An air battery includes a negative electrode, an air electrode, and an electrolyte that is interposed between the negative electrode and the air electrode. The air electrode includes: an oxygen evolution reaction layer for charging that is provided on an electrolyte side of the air electrode and contains an oxygen evolution reaction catalyst containing no carbon; an oxygen reduction reaction layer for discharging that is provided on an opposite side of the air electrode from the electrolyte and contains an oxygen reduction reaction catalyst containing carbon; and a current collector that is provided between the oxygen evolution reaction layer and the oxygen reduction reaction layer or in the oxygen evolution reaction layer.
First claim
Opening claim text (preview).
What is claimed is: 1. An air battery comprising: a negative electrode; an air electrode; a pressing member; and an electrolyte that is interposed between the negative electrode and the air electrode, wherein the air electrode includes: an oxygen evolution reaction layer for charging that is provided on an electrolyte side of the air electrode and contains an oxygen evolution reaction catalyst containing no carbon, an oxygen reduction reaction layer for discharging that is provided on an opposite side of the air electrode from the electrolyte and contains an oxygen reduction reaction catalyst containing carbon, a hydrophilic film that is provided on a surface on the electrolyte side of the oxygen evolution reaction layer and allows permeation of water and ions, and a current collector that is provided between the oxygen evolution reaction layer and the oxygen reduction reaction layer or in the oxygen evolution reaction layer, wherein the pressing member is provided between the negative electrode and the hydrophilic film to press the hydrophilic film toward the surface of the oxygen evolution reaction layer. 2. The air battery according to claim 1 , wherein the oxygen evolution reaction layer is hydrophilic. 3. The air battery according to claim 1 , wherein the oxygen reduction reaction layer is hydrophobic. 4. The air battery according to claim 1 , wherein the air electrode further includes a hydrophobic film that allows permeation of oxygen and is provided on a surface of the oxygen reduction reaction layer, the surface being on an opposite side of the oxygen reduction reaction layer from the oxygen evolution reaction layer. 5. The air battery according to claim 1 , wherein the oxygen evolution reaction layer contains a perovskite type oxide La 0.2 Sr 0.8 Fe 0.6 Co 0.4 O 3 . 6. The air battery according to claim 1 , wherein the oxygen reduction reaction layer contains a perovskite type oxide LaMnO 3 .
Assignees
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Classifications
Positive electrodes · CPC title
Cross-Sectional Technologies · mapped topic
Oxides, hydroxides or oxygenated metallic salts · CPC title
Details (of electrodes H01M4/00; of non-active parts H01M50/00) · 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 US10177426B2 cover?
- An air battery includes a negative electrode, an air electrode, and an electrolyte that is interposed between the negative electrode and the air electrode. The air electrode includes: an oxygen evolution reaction layer for charging that is provided on an electrolyte side of the air electrode and contains an oxygen evolution reaction catalyst containing no carbon; an oxygen reduction reaction la…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M12/08. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 08 2019 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).