Positive electrode active material and preparation method thereof, secondary battery, battery module, battery pack and electrical device
US-2024387819-A1 · Nov 21, 2024 · US
Active material for nonaqueous electrolyte energy storage device
US9692043B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9692043-B2 |
| Application number | US-201414778871-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 26, 2014 |
| Priority date | Mar 27, 2013 |
| Publication date | Jun 27, 2017 |
| Grant date | Jun 27, 2017 |
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Abstract
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An active material for a nonaqueous electrolyte energy storage device contains a lithium-transition metal composite oxide having a crystal structure attributable to space group Fm-3m and represented by the compositional formula (1): Li 1+x Nb y Me z A p O 2 (1) wherein Me is a transition metal including Fe and/or Mn, 0<x<1, 0<y<0.5, 0.25≦z<1, A is an element other than Nb and Me, and 0≦p≦0.2.
First claim
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The invention claimed is: 1. An active material for a nonaqueous electrolyte energy storage device, comprising a lithium-transition metal composite oxide having a crystal structure attributable to space group Fm-3m and represented by the compositional formula (1): Li 1+x Nb y Me z A p O 2 (1) wherein Me is a transition metal including Fe and/or Mn, 0<x<1, 0<y<0.5, 0.25≦z<1, A is an element other than Nb and Me, and 0≦p≦0.2. 2. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein 0.05≦y≦0.35 and 0.8≦2y+z≦1.2. 3. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein 0.15≦y≦0.35. 4. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein 0.9≦2y+z≦1.1. 5. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein Me contains Mn. 6. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein when the compositional formula (1) is represented by the compositional formula (2): Li 1+x Nb y Fe a Mn b A p O 2 (2), 0.1<a<0.6 and 0.1<b<0.6. 7. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein 0.3<z<0.7. 8. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein |x−y|≦0.2. 9. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein |x−y|≦0.15. 10. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein |x−y|≦0.1. 11. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein |x−y|≦0.05. 12. The active material for a nonaqueous electrolyte energy storage device according to claim 1 , wherein x=y, and 2y+z=1. 13. An electrode for a nonaqueous electrolyte energy storage device, comprising the active material for a nonaqueous electrolyte energy storage device according to claim 1 . 14. A nonaqueous electrolyte energy storage device comprising the electrode for a nonaqueous electrolyte energy storage device according to claim 13 . 15. An energy storage system comprising the nonaqueous electrolyte energy storage device according to claim 14 .
Assignees
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Classifications
oxides · CPC title
- H01M4/131Primary
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
Micrometer sized, i.e. from 1-100 micrometer · CPC title
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
Compounds containing iron, with or without oxygen or hydrogen, and containing two or more other elements · CPC title
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- What does patent US9692043B2 cover?
- An active material for a nonaqueous electrolyte energy storage device contains a lithium-transition metal composite oxide having a crystal structure attributable to space group Fm-3m and represented by the compositional formula (1): Li 1+x Nb y Me z A p O 2 (1) wherein Me is a transition metal including Fe and/or Mn, 0<x<1, 0<y<0.5, 0.25≦z<1, A is an element other than Nb and Me, and 0≦p≦…
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd, Tokyo Univ Of Science Educational Found Administrative Organization
- What technology area does this patent fall under?
- Primary CPC classification H01M4/131. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 27 2017 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).