Positive electrode active material particles, and positive electrode and all-solid-state battery using same
US-2015024280-A1 · Jan 22, 2015 · US
Positive electrode active material, method of manufacturing the same and all-solid battery including the same
US11088390B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11088390-B2 |
| Application number | US-202016896986-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 9, 2020 |
| Priority date | Dec 19, 2016 |
| Publication date | Aug 10, 2021 |
| Grant date | Aug 10, 2021 |
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Abstract
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Disclosed are a positive electrode active material capable of suppressing a reaction between a core and a solid electrolyte, a method of manufacturing the same and an all-solid battery including the same. Provided is a positive electrode active material for all-solid batteries including a core comprising a lithium-containing metal oxide, and a coating layer comprising LiI applied to the surface of the core.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of manufacturing a positive electrode active material for all-solid batteries comprising the steps of: preparing a core comprising lithium-containing metal oxide, preparing a coating solution by mixing lithium hydroxide, boric acid, and lithium iodide (LiI) with a solvent, and reacting the coating solution with the core to form a coating layer comprising a mixture of Li 3 BO 3 and LiI on the surface of the core, wherein the formed coating layer is present in an amount of 0.05 to 0.1 wt % and the coating layer consists of Li 3 BO 3 and LiI in a ratio of 9:1 to 8:2 on a mole basis. 2. The method according to claim 1 , wherein the step of forming the coating layer further comprises the steps of: immersing the core in the prepared coating solution; evaporating the solvent from the core-immersed coating solution; and heat-treating the core surface-coated with the coating composition remaining after evaporation of the solvent.
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Classifications
Energy storage using batteries · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
Organic polymers · CPC title
Polymeric materials, e.g. gel-type or solid-type · CPC title
- H01M4/366Primary
as layered products · CPC title
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- What does patent US11088390B2 cover?
- Disclosed are a positive electrode active material capable of suppressing a reaction between a core and a solid electrolyte, a method of manufacturing the same and an all-solid battery including the same. Provided is a positive electrode active material for all-solid batteries including a core comprising a lithium-containing metal oxide, and a coating layer comprising LiI applied to the s…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Motors Corp, Ulsan Nat Inst Science & Tech Unist, and 1 more
- 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 Aug 10 2021 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).