Positive electrode active material and preparation method thereof, secondary battery, battery module, battery pack and electrical device
US-2024387819-A1 · Nov 21, 2024 · US
Positive electrode active material
US9287554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9287554-B2 |
| Application number | US-201113819479-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2011 |
| Priority date | Sep 2, 2010 |
| Publication date | Mar 15, 2016 |
| Grant date | Mar 15, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m 2 /g and not larger than 15 m 2 /g: Li x M 1 y M 3 1-y O 2 (I) wherein M 1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M 3 is at least one transition metal element other than M 1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.
First claim
Opening claim text (preview).
The invention claimed is: 1. A positive electrode active material that is represented by the following formula (I) and has a BET specific surface area of larger than 5 m 2 /g and not larger than 15 m 2 /g: Li x M 1 y M 3 1-y O 2 (I) wherein M 1 is V, M 3 is the both of Ni and Mn, x is not less than 0.9 and not more than 1.3, and y is more than 0 and not more than 0.01. 2. A positive electrode comprising the positive electrode active material according to claim 1 . 3. A nonaqueous electrolyte secondary battery comprising the positive electrode according to claim 2 .
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Classifications
by a space-group or by other symmetry indications · CPC title
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
- H01M4/131Primary
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
Cross-Sectional Technologies · mapped topic
Surface area · CPC title
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- What does patent US9287554B2 cover?
- The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m 2 /g and not larger than 15 m 2 /g: Li x M 1 y M 3 1-y O 2 (I) wherein M 1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Peri…
- Who is the assignee on this patent?
- Saka Maiko, Pitteloud Cedric, Nakayama Tetsuri, and 2 more
- 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 Mar 15 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).