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 lithium secondary battery, precursor of positive active material, electrode for lithium secondary battery and lithium secondary battery
US9105924B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105924-B2 |
| Application number | US-201313914907-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 11, 2013 |
| Priority date | Jun 20, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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Provided is a positive active material for a lithium secondary battery includes a lithium transition metal composite oxide having an α-NaFeO 2 -type crystal structure and represented by the composition formula of Li 1+α Me 1−α O 2 (Me is a transition metal including Co, Ni and Mn and α>0). The positive active material contains Na in an amount of 900 ppm or more and 16000 ppm or less, or K in an amount of 1200 ppm or more and 18000 ppm or less.
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What is claimed is: 1. A positive active material for a lithium secondary battery, comprising a lithium transition metal composite oxide having an α-NaFeO 2 -type crystal structure and represented by the composition formula of Li 1+α Me 1−α O 2 (Me is a transition metal including Co, Ni and Mn and α>0), wherein the positive active material contains Na in an amount of 900 ppm or more and 16000 ppm or less, or K in an amount of 1200 ppm or more and 18000 ppm or less, a pore size of…
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- What does patent US9105924B2 cover?
- Provided is a positive active material for a lithium secondary battery includes a lithium transition metal composite oxide having an α-NaFeO 2 -type crystal structure and represented by the composition formula of Li 1+α Me 1−α O 2 (Me is a transition metal including Co, Ni and Mn and α>0). The positive active material contains Na in an amount of 900 ppm or more and 16000 ppm or less, or K in a…
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd
- 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 Aug 11 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).