Ultra-high specific energy cathode materials for lithium-ion batteries and methods for producing the same
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Air battery catalyst and air battery using the same
US9236641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9236641-B2 |
| Application number | US-201013257218-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2010 |
| Priority date | Mar 18, 2009 |
| Publication date | Jan 12, 2016 |
| Grant date | Jan 12, 2016 |
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Abstract
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Catalysts are provided which can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and which are stable at a high potential in the recharging. The invention has been accomplished based on the finding that a catalyst including an oxycarbonitride of a specific transition metal selected from, for example, titanium, zirconium, hafnium, vanadium, niobium and tantalum can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and is also stable at a high potential in the recharging.
First claim
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The invention claimed is: 1. An air battery catalyst comprising an oxycarbonitride of a Group IV transition metal, wherein the metal oxycarbonitride has a compositional formula represented by Ti a M b C x N y O z (wherein a, b, x, y and z represent a ratio of the numbers of the atoms, 0.01≦a<1.0, 0<b≦0.99, a+b=1, 0.05≦x≦0.7, 0.01≦y≦0.7, 0.1≦z≦1.94, 1.0≦x+y+z≧3.1, and 2.0≧4x+3y+2z, and M is at least one metal selected from the group consisting of tin, indium, platinum, copper, iron, chromium, molybdenum, tungsten, hafnium, cobalt, manganese, cerium, nickel, yttrium, lanthanum, samarium, calcium, barium and magnesium). 2. The air battery catalyst according to claim 1 , wherein the air battery catalyst is used in combination with an air battery anode comprising lithium, aluminum, magnesium, calcium, zinc, an alloy of any of these metals with another metal, or any of these metals that is intercalated in carbon. 3. A secondary air battery comprising the catalyst described in claim 1 .
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- What does patent US9236641B2 cover?
- Catalysts are provided which can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and which are stable at a high potential in the recharging. The invention has been accomplished based on the finding that a catalyst including an oxycarbonitride of a specific transition metal selected from, for example, t…
- Who is the assignee on this patent?
- Shishikura Toshikazu, Showa Denko Kk
- 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 12 2016 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).