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Cathode current collector for electrical energy storage device and method for manufacturing the same
US9190656B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9190656-B2 |
| Application number | US-201213348162-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 11, 2012 |
| Priority date | Oct 20, 2011 |
| Publication date | Nov 17, 2015 |
| Grant date | Nov 17, 2015 |
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Abstract
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Disclosed is a cathode current collector for an electrical energy storage device and a method for manufacturing the same, which improves adhesion between a current collector and an electrode material and provide a high reaction surface area, thereby improving the performance of the electrical energy storage. In particular, a first alumina film is formed on the surface of an aluminum foil using an anodic oxidation process. Next, the first alumina film formed on a surface of the aluminum foil is removed through etching and a second alumina film is formed on the surface of the aluminum foil, from which the first alumina film is removed, using the anodic oxidation process again. Subsequently, a carbon layer is coated on a surface of the aluminum foil on which the second alumina film is formed.
First claim
Opening claim text (preview).
What is claimed is: 1. A cathode current collector for an electrical energy storage device, the cathode current collector comprising: an aluminum foil layer on which an alumina film having a nanoporous structure is formed; and a conductive carbon layer coated on a surface of the aluminum foil layer, wherein the nanoporous structure is a nano-honeycomb structure, wherein the conductive carbon layer is comprised of a graphite. 2. A cathode for an electric…
Assignees
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Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
- H01M4/13Primary
Electricity · mapped topic
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US9190656B2 cover?
- Disclosed is a cathode current collector for an electrical energy storage device and a method for manufacturing the same, which improves adhesion between a current collector and an electrode material and provide a high reaction surface area, thereby improving the performance of the electrical energy storage. In particular, a first alumina film is formed on the surface of an aluminum foil using …
- Who is the assignee on this patent?
- Son Sam Ick, Ryu Hee Yeon, Jin Dae Gun, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01M4/13. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 17 2015 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).