Anode for lithium metal battery, and electrochemical device comprising same
US-12176528-B2 · Dec 24, 2024 · US
Cathode material for all-solid state battery including coating layer for preventing diffusion and method for preparing the same
US10673073B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10673073-B2 |
| Application number | US-201715831119-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 4, 2017 |
| Priority date | May 8, 2017 |
| Publication date | Jun 2, 2020 |
| Grant date | Jun 2, 2020 |
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Abstract
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A cathode material may include a coating layer capable of preventing transition metal cations from being diffused between a cathode active material and a solid electrolyte when an all-solid state battery is charged and discharged, and a method for preparing the same.
First claim
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What is claimed is: 1. A cathode material for an all-solid state battery, comprising: a cathode active material capable of absorbing and desorbing lithium ions; and a coating layer formed on the cathode active material and comprising a first coating layer and a second coating layer formed on the first coating layer, wherein the coating layer includes any one compound represented by the Chemical Formula 3 and the Chemical Formula 4: LiTaO 3 [Chemical Formula 3] LiNbO 3 [Chemical Formula 4] wherein the first coating layer and the second coating layer includes different compounds, wherein a thickness of the first coating layer is about 1 nm to about 100 nm, wherein a content of the first coating layer is about 0.125 wt % to about 0.25 wt % with respect to 100 wt % of the cathode material, wherein a thickness of the second coating layer is about 1 nm to about 100 nm, and wherein a content of the second coating layer is about 0.125 wt % to about 0.25 wt % with respect to 100 wt % of the cathode material. 2. The cathode material for the all-solid state battery of claim 1 , wherein the cathode active material is lithium transition metal oxide. 3. The cathode material for the all-solid state battery of claim 1 , wherein the cathode active material has a hydroxyl group on the surface.
Assignees
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Classifications
- H01M4/628Primary
Inhibitors, e.g. gassing inhibitors, corrosion inhibitors · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Compounds of niobium · CPC title
Compounds of tantalum · CPC title
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title
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- What does patent US10673073B2 cover?
- A cathode material may include a coating layer capable of preventing transition metal cations from being diffused between a cathode active material and a solid electrolyte when an all-solid state battery is charged and discharged, and a method for preparing the same.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Motors Corp, Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification H01M4/628. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 2020 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).