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Method of forming positive electrode active material, kiln, and heating furnace
US2025347466A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025347466-A1 |
| Application number | US-202519274702-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 21, 2025 |
| Priority date | Dec 10, 2019 |
| Publication date | Nov 13, 2025 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
To provide a method of forming a positive electrode active material with high productivity. To provide a manufacturing apparatus capable of forming a positive electrode active material with high productivity. Provided is a method of forming a positive electrode active material including lithium, a transition metal, oxygen, and fluorine. An adhesion preventing step is performed during heating of an object. Examples of the adhesion preventing step include stirring by rotating a furnace during the heating, stirring by vibrating a container containing an object during the heating, and crushing performed between the plurality of heating steps. By these manufacturing methods, a positive electrode active material having favorable distribution of an additive at the surface portion can be formed.
First claim
Opening claim text (preview).
1 . A mesh belt kiln successively processing an object contained in a container, comprising a kiln main body, a mesh belt, and an adhesion preventing unit, wherein the kiln main body has a tunnel-like shape, wherein the mesh belt is configured to transfer the container passing through the kiln main body, and wherein the adhesion preventing unit is a unit which vibrates the container. 2 . A mesh belt kiln successively processing an object contained in a container, comprising a kiln main body, a mesh belt, and an adhesion preventing unit, wherein the kiln main body has a tunnel-like shape, wherein the mesh belt is configured to transfer the container passing through the kiln main body, and wherein the adhesion preventing unit is a device which is provided under the mesh belt and has unevenness for vibrating the container. 3 . The mesh belt kiln according to claim 1 , wherein a length of the adhesion preventing unit is substantially the same as that of the kiln main body. 4 . The mesh belt kiln according to claim 2 , wherein a length of the adhesion preventing unit is substantially the same as that of the kiln main body.
Assignees
Inventors
Classifications
Positive electrodes · 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
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title
involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis · CPC title
Means to prevent the adherence of the charge · CPC title
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- What does patent US2025347466A1 cover?
- To provide a method of forming a positive electrode active material with high productivity. To provide a manufacturing apparatus capable of forming a positive electrode active material with high productivity. Provided is a method of forming a positive electrode active material including lithium, a transition metal, oxygen, and fluorine. An adhesion preventing step is performed during heating of…
- Who is the assignee on this patent?
- Semiconductor Energy Lab
- What technology area does this patent fall under?
- Primary CPC classification F27B7/36. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Nov 13 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).