Method of producing cobalt-coated precursor, cobalt-coated precursor produced thereby, and positive electrode active material prepared using same
US-11031593-B2 · Jun 8, 2021 · US
Positive electrode active material precursor, preparation method thereof, positive electrode active material prepared using same, positive electrode, and secondary battery
US11767230B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11767230-B2 |
| Application number | US-201816762721-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 21, 2018 |
| Priority date | Nov 21, 2017 |
| Publication date | Sep 26, 2023 |
| Grant date | Sep 26, 2023 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the positive electrode active material, and a secondary battery including the positive electrode are also provided.
First claim
Opening claim text (preview).
The invention claimed is: 1. A positive electrode active material precursor comprising: a transition metal hydroxide particle represented by Formula 1 below; and a cobalt oxide particle and a manganese oxide particle directly attached to a surface of the transition metal hydroxide particle: [Ni a Co b M 1 c M 2 d ](OH) 2 [Formula 1] wherein, 0.8≤a<1, 0<b<0.2, 0≤c≤0.1, and 0≤d≤0.1, M 1 is one or more selected from the group consisting of Mn and Al, and M 2 is one or more selected from the group consisting of Ba, Ca, Zr, Ti, Mg, Ta, Nb, and Mo. 2. The positive electrode active material precursor of claim 1 , wherein the positive electrode active material precursor, which includes the transition metal hydroxide particle represented by formula 1, the cobalt oxide particle, and the manganese oxide particle, includes cobalt in an amount of 10-18000 ppm based on a total weight of the positive electrode active material precursor. 3. The positive electrode active material precursor of claim 1 , wherein the positive electrode active material precursor, which includes the transition metal hydroxide particle represented by formula 1, the cobalt oxide particle, and the manganese oxide particle, includes manganese in an amount of 10-12000 ppm based on total weight of the positive electrode active material precursor. 4. The positive electrode active material precursor of claim 1 , wherein the positive electrode active material precursor, which includes the transition metal hydroxide particle represented by formula 1, the cobalt oxide particle, and the manganese oxide particle, has a weight ratio of cobalt:manganese of 6:4 to 8:2. 5. The positive electrode active material precursor of claim 1 , wherein a molar ratio of nickel and cobalt elements in the transition metal hydroxide particle are constant.
Assignees
Inventors
Classifications
- C01G53/82Primary
Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements · CPC title
- C01G53/006Primary
Chemistry & Metallurgy · mapped topic
- C01G53/04Primary
Oxides · CPC title
oxides · CPC title
Positive electrodes · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11767230B2 cover?
- A positive electrode active material precursor is provided, which includes a transition metal hydroxide particle represented by Formula 1 and a cobalt oxide particle and a manganese oxide particle attached to the surface of the transition metal hydroxide particle. A preparation method thereof, a positive electrode active material prepared using the same, a positive electrode including the posit…
- Who is the assignee on this patent?
- Lg Chemical Ltd, Lg Energy Solution Ltd
- What technology area does this patent fall under?
- Primary CPC classification C01G53/82. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 26 2023 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 11 related publications on this page (citations in our corpus or others sharing the same primary CPC).