Patent application number | Description | Published |
20090237860 | FEEDSTOCK COMPOSITION AND RAW COKE FOR ELECTRICITY STORAGE CARBON MATERIAL AND NEEDLE COKE - The present invention provides feedstock compositions for use of the production of an activated carbon for electric double layer capacitor electrodes or the production of needle coke, comprising a first heavy oil with an initial boiling point of 300° C. or higher, an asphalten content of 12 percent by mass or less, a saturate content of 50 percent by mass or more and a sulfur content of 0.3 percent by mass or less, produced as a residue resulting from vacuum-distillation of a petroleum-based oil and a second heavy oil with an initial boiling point of 150° C. or higher and a sulfur content of 0.5 percent by mass or less, produced by subjecting a hydrocarbon oil to fluidized catalytic cracking. | 09-24-2009 |
20090268375 | RAW COKE FOR ELECTRICITY STORAGE CARBON MATERIAL AND NEEDLE COKE - The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke. | 10-29-2009 |
20100209331 | ARTIFICIAL GRAPHITE FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PRODUCTION THEREOF - The artificial graphite for the negative electrode of a lithium ion secondary battery according to the invention has a crystallite size Lc of 60-120 nm in the c-axial direction according to X-ray diffraction, and a crystallite size Lc of 150 nm or greater when subjected to graphitizing at a temperature of 3000° C. in an inert gas atmosphere. | 08-19-2010 |
20100214722 | PROCESS OF PRODUCING ACTIVATED CARBON FOR ELECTRIC DOUBLE LAYER CAPACITOR ELECTRODE - The present invention provides a process of producing an activated carbon for an electric double layer capacitor, which can produce easily and inexpensively an activated carbon free from fusing of carbon particles during activation and having a small diameter, a uniform particle diameter, and a relatively large specific surface area on a commercial scale. The process comprises the steps of calcining an easily graphitizable carbon material so that the reduction rates of the hydrogen/carbon atomic ratio (H/C) and the volatile components in the carbon material are 4 percent or more and 5 percent or more, respectively after calcination and activating the carbon material thereby producing an activated carbon for an electric double layer capacitor, having an average particle diameter of 0.5 to 7 μm and a BET specific surface area of 1500 to 3000 m | 08-26-2010 |
20100215567 | AMORPHOUS CARBON MATERIAL FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - The amorphous carbon material for the negative electrode of a lithium ion secondary battery of the invention has a true density of 1.800-2.165 g/cm | 08-26-2010 |
20110253593 | RAW COKE FOR ELECTRICITY STORAGE CARBON MATERIAL AND NEEDLE COKE - The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke. | 10-20-2011 |
20110267737 | RAW COKE FOR ELECTRICITY STORAGE CARBON MATERIAL AND NEEDLE COKE - The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the ( | 11-03-2011 |
20120121987 | AMORPHOUS CARBON MATERIAL FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - The amorphous carbon material for the negative electrode of a lithium ion secondary battery of the invention has a true density of 1.800-2.165 g/cm | 05-17-2012 |