Lithium secondary battery
US-2020328414-A1 · Oct 15, 2020 · US
Cathode active material for all-solid-state battery comprising coating layer including ternary oxide and method of manufacturing same
US12142760B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12142760-B2 |
| Application number | US-202117331269-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 26, 2021 |
| Priority date | Sep 1, 2020 |
| Publication date | Nov 12, 2024 |
| Grant date | Nov 12, 2024 |
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Abstract
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A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.
First claim
Opening claim text (preview).
What is claimed is: 1. A cathode active material for an all-solid-state battery, the cathode active material comprising: active material particles comprising a compound represented by Chemical Formula 1 below; and a coating layer covering at least a portion of a surface of the active material particles, and comprising lithium oxide represented by Chemical Formula 2 below: Li x V y Nb w Ni 1-a-b CO a M b O 2 , [Chemical Formula 1] wherein in Chemical Formula 1, M is at least one element selected from a group consisting of manganese (Mn), aluminum (Al), magnesium (Mg) and combinations thereof, and x, y, w, a and b are 0.98≤x≤1.02, 0<y≤0.01, 0<w≤0.8, 0<a≤0.1 and 0≤b≤0.1, respectively, LiNb c V d O 3 , [Chemical Formula 2] wherein in Chemical Formula 2, c and d are 0<c≤0.8 and 0<d≤0.01, respectively, wherein the active material particles and the coating layer comprise niobium (Nb) and vanadium (V), and wherein vanadium (V) is contained in the cathode active material in a concentration of 5,400 ppm to 8,600 ppm, and wherein the niobium (Nb) is contained in the cathode active material in a concentration of 11,230 ppm to 12,000 ppm.
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Classifications
of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
- H01M4/366Primary
as layered products · CPC title
Lithium (H01M4/405 takes precedence) · CPC title
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
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- What does patent US12142760B2 cover?
- A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Corp, Ulsan National Institute Of Science And Tech
- What technology area does this patent fall under?
- Primary CPC classification H01M4/366. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 12 2024 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).