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Carbon material for nonaqueous secondary battery, negative electrode using carbon material and nonaqueous secondary battery
US8936876B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936876-B2 |
| Application number | US-201314079212-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2013 |
| Priority date | May 13, 2011 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
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This invention aims to provide a carbon material for a nonaqueous secondary battery having a high capacity and excellent charging/discharging load characteristics, which is used as a negative electrode material for a nonaqueous secondary battery. This invention relates to a carbon material for a nonaqueous secondary battery, which has a specific (1) Raman R value, (2) N atom concentration/C atom concentration ratio, and (3) S atom concentration/C atom concentration ratio.
First claim
Opening claim text (preview).
The invention claimed is: 1. A carbon material for a nonaqueous secondary battery, which satisfies the following conditions (1) to (3): (1) the Raman R value represented by the following formula 1 is from 0.01 to 1: Raman R value=Intensity I B of peak P B at 1360 cm −1 in Raman spectrum analysis/Intensity I A of peak P A at 1580 cm −1 in Raman spectrum analysis; (2) the N/C represented by the following formula 2 is from 0.05% to 2%: N/C (%)=[N atom co…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
- H01M4/366Primary
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US8936876B2 cover?
- This invention aims to provide a carbon material for a nonaqueous secondary battery having a high capacity and excellent charging/discharging load characteristics, which is used as a negative electrode material for a nonaqueous secondary battery. This invention relates to a carbon material for a nonaqueous secondary battery, which has a specific (1) Raman R value, (2) N atom concentration/C ato…
- Who is the assignee on this patent?
- Mitsubishi Chem 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 Tue Jan 20 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).