Alkaline ion-absorbing/desorbing carbon material electrode material for secondary battery using the carbon material and lithium secondary battery using the electron material
US5725968A · kind A · utility
20Cited by
5References
27Claims
0Family size
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Key dates
| Filing date | Jan 24, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An alkali ion-absorbing/desorbing carbon material excellent in absorption and desorption of alkali ions and useful for an electrode material for a secondary battery or an anode material of a lithium battery is obtained by heat treatment at 300.degree. to 1000.degree. C. of an organic polymer having an aromatic structure, wherein the monomers of the aromatic organic polymer are linked together by o-bonding or m-bonding, or wherein the aromatic organic polymer has a branched structure or a crosslinked structure. The carbon material has a randomly stacked, condensed aromatic ring structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.