Positive electrode active material and preparation method thereof, positive electrode plate, secondary battery, battery module, battery pack, and electric apparatus
US-2024429384-A1 · Dec 26, 2024 · US
Cathode materials and lithium secondary battery containing the same
US8993167B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993167-B2 |
| Application number | US-85188810-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 6, 2010 |
| Priority date | Jan 6, 2009 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
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Provided is a cathode active material composed of lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide contains nickel in an amount of 40% or higher, based on the total weight of transition metals, and the cathode active material comprises a first coating layer provided on the surface thereof and a second coating layer provided on the surface of the first coating layer, wherein the first coating layer is composed of a non-reactive material selected from the group consisting of oxides, nitrides, sulfides and mixtures or complexes thereof and the second coating layer is composed of a carbon-based material.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cathode comprising: a cathode current collector; and a cathode mix applied to a surface of said cathode current collector comprising cathode active material particles, a conductive material and a binder, wherein the cathode active material particles comprise a lithium nickel-manganese-cobalt oxide represented by the following Formula (1a), a first coating layer present on a surface of the cathode active material particle, and a second coating lay…
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Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
- H01M4/525Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8993167B2 cover?
- Provided is a cathode active material composed of lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide contains nickel in an amount of 40% or higher, based on the total weight of transition metals, and the cathode active material comprises a first coating layer provided on the surface thereof and a second coating layer provided on the surface of the first coating laye…
- Who is the assignee on this patent?
- Chang Sung Kyun, Park Hong-Kyu, Park Sinyoung, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01M4/525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 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).