Materials for solid state electrolytes and protective electrode coatings for lithium batteries
US-2015364747-A1 · Dec 17, 2015 · US
Method for producing cathode active material for solid state battery
US2016268586A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016268586-A1 |
| Application number | US-201615054754-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 26, 2016 |
| Priority date | Mar 12, 2015 |
| Publication date | Sep 15, 2016 |
| Grant date | — |
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Abstract
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A main object of the present invention is to provide a method for producing a cathode active material for a solid state battery, which is capable of reducing resistance. The present invention solves the problem by providing a method for producing a cathode active material for a solid state battery comprising steps of: a coating step of coating a coating material represented by Li x PO y (2≦x≦4, 3≦y≦5) on a surface of a cathode active material containing an Ni element and being an oxide by using a sputtering method; and a heat-treating step of forming a coating portion in such a manner that the cathode active material coated with the coating material is heat-treated within a range of 400° C. to 650° C. to diffuse the Ni element into the coating material.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for producing a cathode active material for a solid state battery comprising steps of: a coating step of coating a coating material represented by Li x PO y (2≦x≦4, 3≦y≦5) on a surface of a cathode active material containing an Ni element and being an oxide by using a sputtering method; and a heat-treating step of forming a coating portion in such a manner that the cathode active material coated with the coating material is heat-treated within a range of 400° C. to 650° C. to diffuse the Ni element into the coating material. 2 . The method for producing a cathode active material for a solid state battery according to claim 1 , wherein the coating portion is amorphous. 3 . The method for producing a cathode active material for a solid state battery according to claim 1 , wherein the cathode active material is LiNi 0.5 Mn 1.5 O 4 or LiNi 1/3 Co 1/3 Mn 1/3 O 2 .
Assignees
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Classifications
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
Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title
- H01M4/0426Primary
Sputtering · CPC title
as layered products · CPC title
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- What does patent US2016268586A1 cover?
- A main object of the present invention is to provide a method for producing a cathode active material for a solid state battery, which is capable of reducing resistance. The present invention solves the problem by providing a method for producing a cathode active material for a solid state battery comprising steps of: a coating step of coating a coating material represented by Li x PO y (2≦x≦4…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/0426. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 15 2016 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).