Anode for lithium metal battery, and electrochemical device comprising same
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Negative active material, method of preparing the negative active material, electrode including the negative active material, and lithium battery including the electrode
US9048486B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9048486-B2 |
| Application number | US-201213431610-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2012 |
| Priority date | Nov 8, 2011 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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A negative active material including: a composite including a matrix comprising silicon oxide, silicon carbide, and carbon and silicon particles dispersed in the matrix; and a carbon coating film formed on a surface of the composite, wherein an intensity ratio of a SiC peak to a Si peak in an X-ray diffraction spectrum is 1 or more, a method of preparing the negative active material, a negative electrode including the negative active material, and a lithium battery including the electrode.
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What is claimed is: 1. A negative active material comprising: a composite of SiOxCy, wherein x is from about 0.1 to about 1.2, y is from about 0.01 to 0.2 comprising, a matrix comprising silicon oxide, silicon carbide, and carbon; and silicon particles dispersed in the matrix; and a carbon coating film formed on a surface of the composite, wherein the intensity ratio of a SiC peak to a Si (111) peak in an X-ray diffraction spectrum is about 1 or more, wherein the amount o…
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- What does patent US9048486B2 cover?
- A negative active material including: a composite including a matrix comprising silicon oxide, silicon carbide, and carbon and silicon particles dispersed in the matrix; and a carbon coating film formed on a surface of the composite, wherein an intensity ratio of a SiC peak to a Si peak in an X-ray diffraction spectrum is 1 or more, a method of preparing the negative active material, a negative…
- Who is the assignee on this patent?
- Kim Deok-Hyun, Kim Jae-Myung, Joo Kyu-Nam, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H01M4/134. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 02 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).