Carbon material and electricity storage device
US9186680B2 · kind B2 · utility
1Cited by
2References
4Claims
0Family size
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Key dates
| Filing date | May 15, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Achieved is an electricity storage device having a low internal resistance and a high energy density. In a pore distribution, which is obtained for a carbon material using a BJH method and is plotted on a graph with a pore diameter D on the abscissa and a derivative ΔV/ΔD of a pore volume per unit mass or unit volume with respect to the pore diameter D on the ordinate, a ratio M1/M2 of the maximum value M1 of the derivative ΔV/ΔD in an interval of the pore diameter D from 10 to 100 nm with respect to the maximum value M2 of the derivative ΔV/ΔD in an interval of the pore diameter D from 2 to 10 nm is 1.5 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.