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US-12165808-B2 · Dec 10, 2024 · US
Electrode active material, electrode and electrical storage device
US9424996B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9424996-B2 |
| Application number | US-201313871373-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 26, 2013 |
| Priority date | May 18, 2012 |
| Publication date | Aug 23, 2016 |
| Grant date | Aug 23, 2016 |
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- Title
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- Abstract
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Abstract
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The electrode active material includes a carbon material having a volume of macropores with 50 to 400 nm pore diameters of 0.05 to 0.40 cc/g. The carbon material may be a composite carbon material that contains a carbon material forming a core, and a coating carbon material covering at least part of the core-forming carbon material.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrode active material comprising a carbon material, wherein a volume of micropores having a pore diameter of 50 to 400 nm in the carbon material is 0.05 to 0.40 cc/g as measured by a nitrogen absorption method. 2. The electrode active material according to claim 1 , wherein the carbon material is a composite carbon material that contains a carbon material forming a core, and a coating carbon material covering at least part of the core-forming carbon material. 3. The electrode active material according to claim 2 , wherein the coating carbon material comprises a carbon black. 4. The electrode active material according to claim 1 , wherein the carbon material has a 50% volume cumulative diameter D50 of 1.0 to 10.0 μm. 5. An electrode comprising the electrode active material according to claim 1 . 6. An electrical storage device comprising the electrode according to claim 5 as a negative electrode. 7. A lithium ion capacitor comprising the electrode according to claim 5 as a negative electrode. 8. A lithium ion secondary battery comprising the electrode according to claim 5 as a negative electrode. 9. The electrode active material according to claim 1 , wherein the carbon material has a 50% volume cumulative diameter D50 of 1.0 to 5.0 μm. 10. The electrode active material according to claim 2 , wherein the coating carbon material comprises a calcined mixture of a carbon black and a pitch or a calcined mixture of a carbon black and a thermoplastic resin.
Assignees
Inventors
Classifications
Powders or particles, e.g. composition thereof · CPC title
Energy storage/generating using nanostructure, e.g. fuel cell, battery · CPC title
characterised by carbonisation or activation of carbon · CPC title
- H01G11/24Primary
characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor · CPC title
specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation · CPC title
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- What does patent US9424996B2 cover?
- The electrode active material includes a carbon material having a volume of macropores with 50 to 400 nm pore diameters of 0.05 to 0.40 cc/g. The carbon material may be a composite carbon material that contains a carbon material forming a core, and a coating carbon material covering at least part of the core-forming carbon material.
- Who is the assignee on this patent?
- Jsr Corp, Jm Energy Corp
- What technology area does this patent fall under?
- Primary CPC classification H01G11/24. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 23 2016 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).