Positive electrode active material and preparation method thereof, positive electrode plate, secondary battery, battery module, battery pack, and electric apparatus
US-2024429384-A1 · Dec 26, 2024 · US
Positive electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery
US2016190566A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016190566-A1 |
| Application number | US-201514941186-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 13, 2015 |
| Priority date | Dec 26, 2014 |
| Publication date | Jun 30, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A positive electrode for a nonaqueous electrolyte secondary battery according to an embodiment of the present disclosure includes a positive electrode current collector mainly composed of aluminum (Al), a protective layer disposed on the positive electrode current collector, and a positive electrode mixture layer containing a lithium-containing transition metal oxide and disposed on the protective layer. The protective layer has a thickness of 1 to 5 μm and contains an electroconductive material and an inorganic compound having an oxidation power lower than that of the lithium-containing transition metal oxide.
First claim
Opening claim text (preview).
What is claimed is: 1 . A positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode comprising; a positive electrode current collector mainly composed of aluminum (Al); a protective layer disposed on the positive electrode current collector; and a positive electrode mixture layer containing a lithium-containing transition metal oxide and disposed on the protective layer, wherein the protective layer has a thickness of 1 to 5 μm and contains an electroconductive material and an inorganic compound having an oxidation power lower than that of the lithium-containing transition metal oxide. 2 . The positive electrode for a nonaqueous electrolyte secondary battery according to claim 1 , wherein the inorganic compound is aluminum oxide. 3 . The positive electrode for a nonaqueous electrolyte secondary battery according to claim 1 , wherein the protective layer is formed on the positive electrode current collector at a surface density of 0.1 to 20 g/m 2 . 4 . The positive electrode for a nonaqueous electrolyte secondary battery according to claim 1 , wherein the protective layer contains the inorganic compound in an amount of 70% to 99.8% by weight based on the total weight of the protective layer. 5 . The positive electrode for a nonaqueous electrolyte secondary battery according to claim 1 , wherein the protective layer contains the electroconductive material in an amount of 0.1% to 20% by weight based on the total weight of the protective layer. 6 . The positive electrode for a nonaqueous electrolyte secondary battery according to claim 1 , wherein the protective layer further contains a binding material in an amount of 0.1% to 10% by weight based on the total weight of the protective layer. 7 . A nonaqueous electrolyte secondary battery comprising: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein the positive electrode comprises: a positive electrode current collector mainly composed of aluminum (Al); a protective layer disposed on the positive electrode current collector; and a positive electrode mixture layer containing a lithium-containing transition metal oxide and disposed on the protective layer, and the protective layer has a thickness of 1 to 5 and contains an electroconductive material and an inorganic compound having an oxidation power lower than that of the lithium-containing transition metal oxide.
Assignees
Inventors
Classifications
- H01M4/366Primary
as layered products · CPC title
Metal or alloys, e.g. alloy coatings (H01M4/669 take precedence) · CPC title
of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title
Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) · CPC title
Positive electrodes · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016190566A1 cover?
- A positive electrode for a nonaqueous electrolyte secondary battery according to an embodiment of the present disclosure includes a positive electrode current collector mainly composed of aluminum (Al), a protective layer disposed on the positive electrode current collector, and a positive electrode mixture layer containing a lithium-containing transition metal oxide and disposed on the protect…
- Who is the assignee on this patent?
- Panasonic Corp
- 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 Thu Jun 30 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).