Abstract: A scale-like graphite and carbon material for a battery electrode which is suitable for use as an electrode material for an aqueous-electrolyte secondary battery, wherein the ratio IG/ID (G value) between the peak area (ID) in a range of 1300 to 1400 cm?1 and the peak area (IG) in a range of 1580 to 1620 cm?1 by Raman spectroscopy spectra, in which an edge surface of the particle of the scale-like graphite is measured with by a Raman microspectrometer, is 5.2 to 100 and the average interplanar spacing d002 of plane (d002) by the X-ray diffraction method is 0.337 nm or less and optical structures of the scale-like graphite have a specific shape; the method for producing the same; a carbon material for a battery electrode and a paste for an electrode containing the material; and a secondary battery having excellent charge/discharge cycle characteristics and high current load characteristics.

Abstract: A carbon negative electrode material for a lithium secondary battery includes: a core carbon material; and a coated layer covering the core carbon material and comprising a carbon coating material and carbon fiber.

Abstract: A carbon material containing boron atom in an amount of 0.001 to 0.5 mass %, in which the average interplanar spacing (d002) of plane (002) is 0.337 nm or less. By observing optical structures in cross-section of formed bodies made of the carbon material, when areas are accumulated from a smallest structure in an ascending order, SOP represents an area of an optical structure whose accumulated area corresponds to 60% of the total area of all optical structures; when the structures are counted from a structure of a smallest aspect ratio in an ascending order, AROP represents the aspect ratio of the structure which ranks at the position of 60% in total number of all the structures; and when D50 represents an average particle diameter; SOP, AROP and D50 satisfy the following relationship: 1.5?AROP?6 and 0.2×D50?(SOP×AROP)1/2<2×D50. Also disclosed is a secondary battery using the carbon material as an electrode material.

Abstract: A graphite material having pores which, when 200 rectangular regions of 6 ?m×8 ?m are randomly selected in a surface image of the graphite material observed by a scanning electron microscope, in the surface of the graphite material appearing in the regions, a pore appearing on the surface and having an aperture in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5 is visible in two regions or more. Also disclosed is a carbon material for battery electrodes, a paste for electrodes, an electrode and a lithium ion secondary battery including the graphite material.

Abstract: A carbon material containing boron atom in an amount of 0.001 to 0.5 mass %, in which the average interplanar spacing (d002) of plane (002) is 0.337 nm or less. By observing optical structures in cross-section of formed bodies made of the carbon material, when areas are accumulated from a smallest structure in an ascending order, SOP represents an area of an optical structure whose accumulated area corresponds to 60% of the total area of all optical structures; when the structures are counted from a structure of a smallest aspect ratio in an ascending order, AROP represents the aspect ratio of the structure which ranks at the position of 60% in total number of all the structures; and when D50 represents an average particle diameter; SOP, AROP and D50 satisfy the following relationship: 1.5?AROP?6 and 0.2×D50?(SOP×AROP)1/2<2×D50. Also disclosed is a secondary battery using the carbon material as an electrode material.

Abstract: A graphite carbon composite material including a graphite material having diversity in the sizes of optical anisotropic structure and optical isotropic structure, the ratio thereof, and crystal direction, and a carbon material on the way to a graphitized structure of easily-graphitizable carbon. Also disclosed is a carbon material for a battery electrode, a past for an electrode, an electrode, a battery, a lithium ion secondary battery and a method of producing the graphite carbon composite material.

Abstract: A graphite composite material obtained by mixing graphite material 1 having diversity in the sizes of optical anisotropic structure and optical isotropic structure, the ratio thereof, and crystal direction, and graphite material 2 having a rhombohedron structure, which is different from graphite material 1 and has an average interplanar spacing d002 of plane (002) of 0.3354 nm to 0.3370 nm measured by the powder X-ray diffraction method and Lc of 100 nm or more. Also disclosed is a carbon material for a battery electrode, a paste for an electrode, an electrode, a battery, a lithium ion secondary battery and a method of producing the graphite composite material.

Abstract: A scale-like carbon material and carbon material for a battery electrode suitable for use as an electrode material for an aqueous-electrolyte secondary battery, wherein the ratio IG/ID (G value) between the peak area (ID) in a range of 1300 to 1400 cm?1 and the peak area (IG) in a range of 1580 to 1620 cm?1 by Raman spectroscopy spectra when an edge surface of the particle of the scale-like carbon material is measured with by Raman microspectrometer is 5.2 to 100 and the average interplanar spacing d002 of plane (d002) by the X-ray diffraction method is 0.337 nm or less and optical structures of the carbon material have a specific shape; the method for producing the same; a carbon material for a battery electrode and a paste for an electrode containing the material; and a secondary battery having excellent charge/discharge cycle characteristics and high current load characteristics.

Abstract: A graphite material suitable as an electrode material for non-aqueous electrolytic secondary batteries; a method for producing the same and a carbon material for battery electrodes; and a secondary battery. The graphite material includes crystallite graphite particles wherein an oxygen amount (a) (mass %) in a region from a particle surface of the graphite material to a depth of 40 nm is within a range of 0.010?(a)?0.04 as determined by a peak intensity of O1s obtained by HAX-PES measurement using a hard X-ray of 7,940 eV.

Abstract: A graphite material having pores which, when 200 rectangular regions of 6 ?m×8 ?m are randomly selected in a surface image of the graphite material observed by a scanning electron microscope, in the surface of the graphite material appearing in the regions, a pore appearing on the surface and having an aperture in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5 is visible in two regions or more. Also disclosed is a carbon material for battery electrodes, a paste for electrodes, an electrode and a lithium ion secondary battery including the graphite material.

Abstract: Disclosed are a negative electrode for lithium secondary batteries, containing an active material (A) capable of absorbing/desorbing lithium ions and a binder (B), wherein the active material (A) is a carbon-based material obtained from at least one starting material selected from a group consisting of petroleum cokes and coal cokes and having a mean particle size of from 1 to 30 and a true density of from 1.90 to 2.00 g/cm3 and its use; and a method for producing a carbon-based negative electrode active material having a mean particle size of from 1 to 30 ?m and a true density of from 1.90 to 2.00 g/cm3, the method comprising (a) a step of grinding at least one selected from a group consisting of petroleum cokes and coal cokes, (b) a step of controlling the particle size, and (c) a step of heat-treating in an inert gas atmosphere at 900 to 1900° C.

Abstract: A graphite material suitable as an electrode material for non-aqueous electrolytic secondary batteries; a method for producing the same and a carbon material for battery electrodes; and a secondary battery. The graphite material includes crystallite graphite particles wherein an oxygen amount (a) (mass %) in a region from a particle surface of the graphite material to a depth of 40 nm is within a range of 0.010?(a)?0.04 as determined by a peak intensity of O1s obtained by HAX-PES measurement using a hard X-ray of 7,940 eV.

Abstract: A carbon raw material such as a green coke in which loss on heat when it is heated from 300 to 1200° C. under an inert atmosphere is no less than 5% by mass and no more than 20% by mass is pulverized and then the pulverized carbon raw material is graphitized to obtain a graphite material suitable for a carbon material for anode in a lithium-ion secondary battery or the like that enables to make electrodes having a high-energy density and a large-current load characteristic since it has a small specific surface area and a small average particle diameter while maintaining high beginning efficiency and a high discharge capacity in the first round of charging and discharging. And an electrode for batteries are obtained using the graphite material.

Abstract: A graphite composite material obtained by mixing graphite material 1 having diversity in the sizes of optical anisotropic structure and optical isotropic structure, the ratio thereof, and crystal direction, and graphite material 2 having a rhombohedron structure, which is different from graphite material 1 and has an average interplanar spacing d002 of plane (002) of 0.3354 nm to 0.3370 nm measured by the powder X-ray diffraction method and Lc of 100 nm or more. Also disclosed is a carbon material for a battery electrode, a paste for an electrode, an electrode, a battery, a lithium ion secondary battery and a method of producing the graphite composite material.

Abstract: A graphite carbon composite material including a graphite material having diversity in the sizes of optical anisotropic structure and optical isotropic structure, the ratio thereof, and crystal direction, and a carbon material on the way to a graphitized structure of easily-graphitizable carbon. Also disclosed is a carbon material for a battery electrode, a past for an electrode, an electrode, a battery, a lithium ion secondary battery and a method of producing the graphite carbon composite material.

Abstract: Provided are a graphite material suitable as an electrode material for nonaqueous electrolyte secondary batteries, a carbonaceous material for battery electrodes, and secondary batteries which exhibit excellent charge-discharge cycle characteristics and excellent severe-current-load characteristics. A graphite material which has specific sizes of optically anisotropic and isotropic structures, a specific content ratio between both structures, and various orientation of crystallization; and a carbonaceous material for battery electrodes which is made using the graphite material and which exhibits a large discharge capacity and a small irreversible capacity with the severe-current-load characteristics and cycle characteristics being kept at high levels.

Abstract: A carbon negative electrode material for a lithium secondary battery includes: a core carbon material; and a coated layer covering the core carbon material and comprising a carbon coating material and carbon fiber.

Abstract: The present invention provides composite graphite particles, which are useful for a negative electrode in a secondary battery having high capacitance, good charge-discharge characteristics and good charge-discharge cycle characteristics; and a paste for negative electrode, a negative electrode and a lithium secondary battery which use the composite graphite particles. The composite graphite particles of the present invention comprises a core material consisting of graphite having a interlayer distance d(002) of 0.337 nm or less in which the intensity ratio ID/IG (R value) between the peak intensity (ID) in a range of 1300 to 1400 cm?1 and the peak intensity (IG) in a range of 1580 to 1620 cm?1 as measured by Raman spectroscopy spectra is from 0.01 to 0.1 and a carbonaceous surface layer in which the intensity ratio ID/IG(R value) between the peak intensity (ID) in a range of 1300 to 1400 cm?1 and the peak intensity (IG) in a range of 1580 to 1620 cm?1 as measured by Raman scattering spectroscopy is 0.

Abstract: Provided are a graphite material suitable as an electrode material for nonaqueous electrolyte secondary batteries, a carbonaceous material for battery electrodes, and secondary batteries which exhibit excellent charge-discharge cycle characteristics and excellent severe-current-load characteristics. A graphite material which has specific sizes of optically anisotropic and isotropic structures, a specific content ratio between both structures, and various orientation of crystallization; and a carbonaceous material for battery electrodes which is made using the graphite material and which exhibits a large discharge capacity and a small irreversible capacity with the severe-current-load characteristics and cycle characteristics being kept at high levels.

Abstract: A graphite material is provided wherein D50% is 2 to 9 ?m in particle diameter distribution based on volume as measured by laser diffraction, a specific surface area is 2 to 6 m2/g and no coating layer is substantially included in a surface of the particle. Also provided is a graphite material comprising substantially single-composition particles having an isotropic crystal structure, wherein D50% is 2 to 9 ?m in particle diameter distribution based on volume as measured by laser diffraction, and a specific surface area is 2 to 6 m2/g.