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Carbon-based negative electrode material and secondary battery including negative electrode material
US8993156B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993156-B2 |
| Application number | US-201213586952-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2012 |
| Priority date | Aug 31, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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To provide a carbon-based negative electrode material which can be used with an electrolyte containing PC as a main ingredient, a carbon-based negative electrode material having a graphene layer structure is crystalline and has pores. That is, the crystal structure of the carbon-based negative electrode material is distorted more significantly than that of graphite. Accordingly, the carbon-based negative electrode material has a larger interlayer distance between graphenes than graphite. It has been shown that such a negative electrode material can be used for a secondary battery which contains an electrolyte containing PC as a main ingredient.
First claim
Opening claim text (preview).
What is claimed is: 1. A secondary battery comprising: a negative electrode including a carbon-based material having a graphene layer structure; and an electrolyte, wherein the solvent of the electrolyte consists essentially of propylene carbonate, and wherein the carbon-based material has crystallinity and pores. 2. The secondary battery according to claim 1 , wherein diameters of the pores of the carbon-based material range from 2 nm to 4 nm.…
Assignees
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Classifications
Electricity · mapped topic
Operations & Transport · mapped topic
- H01M10/0525Primary
Electricity · mapped topic
Electricity · mapped topic
- H01M4/587Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8993156B2 cover?
- To provide a carbon-based negative electrode material which can be used with an electrolyte containing PC as a main ingredient, a carbon-based negative electrode material having a graphene layer structure is crystalline and has pores. That is, the crystal structure of the carbon-based negative electrode material is distorted more significantly than that of graphite. Accordingly, the carbon-base…
- Who is the assignee on this patent?
- Inoue Nobuhiro, Momo Junpei, Todoriki Hiroatsu, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 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).