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
Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same
US9899677B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9899677-B2 |
| Application number | US-201113065935-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 31, 2011 |
| Priority date | Jun 13, 2010 |
| Publication date | Feb 20, 2018 |
| Grant date | Feb 20, 2018 |
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Abstract
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A positive active material for a rechargeable lithium battery including a lithium metal oxide represented by the following Chemical Formula 1, a method of preparing the same, and a rechargeable lithium battery including the same. Li a MeM′ k O 2 Chemical Formula 1 In Chemical Formula 1, Me is Ni x Co y Mn z , M′ is Mg, Al, Fe, P, or a combination thereof, 0.955≦a<1.05, 0.001≦k≦0.1, 0.5<x≦0.65, 0.1<y≦0.25, 0.1<z≦0.25, x+y+z+k=1, M′ is doped at a Li site and at least one of Ni, Co, and Mn sites, M′ is doped in an amount at 0.1 mol % or 10 mol % or between 0.1 mol % and 10 mol % based on the total amount of Ni, Co, and Mn, and a doping mole ratio of M′ doped at the Li site with respect to a Me site is in the following range: about 0.001≦A Li /A Me ≦about 0.5.
First claim
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What is claimed is: 1. A positive active material for a rechargeable lithium battery comprising a lithium metal oxide represented by the following Chemical Formula 1: Li a MeM′ k O 2 Chemical Formula 1 wherein, in Chemical Formula 1, Me is Ni x Co y Mn z , M′ is Mg, 0.95≦a<1.05, 0.001≦k≦0.1, 0.5<x≦0.65, 0.1<y≦0.25, 0.1<z≦0.25, x+y+z+k=1, M′ is doped at a Li site and at least one of Ni, Co, and Mn sites, M′ is doped in an amount at 0.1 mol % or 10 mol % or between 0.1…
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Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9899677B2 cover?
- A positive active material for a rechargeable lithium battery including a lithium metal oxide represented by the following Chemical Formula 1, a method of preparing the same, and a rechargeable lithium battery including the same. Li a MeM′ k O 2 Chemical Formula 1 In Chemical Formula 1, Me is Ni x Co y Mn z , M′ is Mg, Al, Fe, P, or a combination thereof, 0.955≦a<1.05, 0.001≦k≦…
- Who is the assignee on this patent?
- Kim Ji Hyun, Park Do Hyung, Kwon Seon Young, and 4 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 Feb 20 2018 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).