摘要:
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/cm3, but has a true density of 2.255 g/cm3 or greater when subjected to graphitizing in an inert gas atmosphere at a temperature of 3000° C.
摘要翻译:本发明的锂离子二次电池用负极的无定形碳材料的真密度为1.800-2.165g / cm 3,当在惰性气体气氛中进行石墨化时,其真密度为2.255g / cm 3以上 在3000℃的温度下
摘要:
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.
摘要:
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.
摘要:
Provided is a stock oil composition for a carbonaceous material for a negative electrode of a lithium-ion secondary battery which composition is useful for achieving excellent high-speed charge and discharge characteristics. The stock oil composition for a carbonaceous material for a negative electrode of a lithium-ion secondary battery uses a bottom oil of residue fluid catalytic cracking apparatus as a raw material. The stock oil composition comprises, of a saturated component, an aromatic component, a resin component and an asphaltene component detectable by development of the stock oil composition using thin-layer chromatography, the saturated component ranging from 30 to 50% by weight and the aromatic component ranging from 50 to 70% by weight; and has an average molecular weight of from 400 to 600.
摘要:
To provide a negative electrode carbon material capable of suppressing capacity degradation which will occur due to repetition of a charge/discharge cycle, storage under a charged state, float charging, or the like. An artificial graphite for a negative electrode of a lithium secondary battery having a c-axis crystallite size L (112) of from 2.0 to 4.2 nm as calculated from a (112) diffraction line obtained by X-ray wide-angle diffractometry and having a half-value width ΔνG of from 15 to 19 cm−1 for a peak appearing in a wavelength region of from 1580 cm−1±100 cm−1 in the Raman spectroscopy using an argon ion laser light having a wavelength of 5145 angstrom.
摘要:
A non-transitory computer-readable recording medium stores therein a design support program that causes a computer capable of accessing a database, which stores therein respective starting point and ending point coordinates of line segments included in a wiring path of a circuit-under-test, to execute a process that includes dividing a layout area of the circuit-under-test, by a predetermined width, into a grid pattern to divide the layout area into plural mesh areas, using a predetermined coordinate within the layout area as an origin coordinate; determining whether a line segment selected from among the line segments in the database passes through a vertex of a mesh area obtained at the dividing; and outputting a determination result obtained at the determining.