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Negative electrode for iron-air secondary battery, iron-air secondary battery, and production method of negative electrode for iron-air secondary battery
US2018219220A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018219220-A1 |
| Application number | US-201615741948-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 2, 2016 |
| Priority date | Jul 6, 2015 |
| Publication date | Aug 2, 2018 |
| Grant date | — |
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- Title
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Abstract
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A negative electrode for use in an iron-air secondary battery of the present invention comprises a three-dimensionally formed structure in which particles of metal powder comprising iron or an iron alloy as a principal component are coupled to each other through metallic bonding, wherein the negative electrode has a porosity of greater than or equal to 30% and less than or equal to 70%. A production method of a negative electrode for an iron-air secondary battery of the present invention comprises: mixing with a resin, metal powder comprising iron or an iron alloy as a principle component; molding a mixture obtained after the mixing; and sintering a molded body obtained after the molding.
First claim
Opening claim text (preview).
1 . A negative electrode for use in an iron-air secondary battery, the negative electrode comprising a three-dimensionally formed structure in which particles of metal powder comprising iron or an iron alloy as a principal component are coupled to each other through metallic bonding, wherein the negative electrode has a porosity of greater than or equal to 30% and less than or equal to 70%. 2 . The negative electrode according to claim 1 , wherein the three-dimensionally formed structure is a sintered body of the metal powder. 3 . The negative electrode according to claim 1 , wherein the three-dimensionally formed structure has continuous air holes. 4 . The negative electrode according to claim 1 , wherein carbon or sulfur is attached to a surface of the three-dimensionally formed structure. 5 . The negative electrode according to claim 1 , wherein a mean particle diameter of the metal powder is greater than or equal to 10 μm and less than or equal to 100 μm. 6 . The negative electrode according to claim 1 , wherein the metal powder is water-atomized powder. 7 . The negative electrode according to claim 1 , wherein the iron-air secondary battery comprises a solid electrolyte. 8 . An iron-air secondary battery comprising the negative electrode according to claim 1 . 9 . A production method of a negative electrode for an iron-air secondary battery, comprising: mixing with a resin, metal powder comprising iron or an iron alloy as a principle component; molding a mixture obtained after the mixing; and sintering a molded body obtained after the molding.
Assignees
Inventors
Classifications
composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type · CPC title
Molding · CPC title
- H01M4/38Primary
of elements or alloys · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
Electrodes composed of, or comprising, active material · CPC title
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- What does patent US2018219220A1 cover?
- A negative electrode for use in an iron-air secondary battery of the present invention comprises a three-dimensionally formed structure in which particles of metal powder comprising iron or an iron alloy as a principal component are coupled to each other through metallic bonding, wherein the negative electrode has a porosity of greater than or equal to 30% and less than or equal to 70%. A produ…
- Who is the assignee on this patent?
- Kobe Steel Ltd, National Univ Corporation Toyohashi Univ Of Technology
- What technology area does this patent fall under?
- Primary CPC classification H01M4/38. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 02 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).