Abstract: A carbon material for a non-aqueous secondary battery containing a graphite capable of occluding and releasing lithium ions, and having a cumulative pore volume at pore diameters in a range of 0.01 ?m to 1 ?m of 0.08 mL/g or more, a roundness, as determined by flow-type particle image analysis, of 0.88 or greater, and a pore diameter to particle diameter ratio (PD/d50 (%)) of 1.8 or less, the ratio being given by equation (1A): PD/d50 (%)=mode pore diameter (PD) in a pore diameter range of 0.01 ?m to 1 ?m in a pore distribution determined by mercury intrusion/volume-based average particle diameter (d50)×100 is provided.

Abstract: A method for producing a carbon material may include: granulating a raw carbon material by applying mechanical energy comprising impact, compression, friction, and/or shear force. The granulating may be carried out in the presence of a granulating agent. The granulating agent may be liquid during the granulating of the raw carbon material. Alternatively or in addition, the granulating agent may include no organic solvent, an organic solvent having no flash point, or no organic solvent having a flash point of 5° C. or higher.

Abstract: An object of the present invention is to provide a carbon material for negative electrodes of non-aqueous secondary batteries having a high capacity, a high output, excellent cycle characteristics and a low irreversible capacity. The present invention relates to a carbon material for negative electrodes of non-aqueous secondary batteries, the carbon material comprising: (1) a composite carbon particles (A) containing elemental silicon, and (2) amorphous composite graphite particles (B) in which graphite particles (C) and amorphous carbon are composited.

Abstract: An object of the present invention is to provide a carbon material for negative electrodes of non-aqueous secondary batteries having a high capacity, a high output, excellent cycle characteristics and a low irreversible capacity. The present invention relates to a carbon material for negative electrodes of non-aqueous secondary batteries, the carbon material comprising: (1) a composite carbon particles (A) containing elemental silicon, and (2) amorphous composite graphite particles (B) in which graphite particles (C) and amorphous carbon are composited.

Abstract: A carbon material may include granulated particles satisfying (1L) and (2L): (1L) the granulated particles are made of a carbonaceous material; and (2L) the granulated particles satisfy the relationship |X1?X|/X1?0.2, wherein X is a volume-based average particle diameter determined by laser diffraction, and X1 is an equivalent circular diameter as determined from a cross-sectional SEM image, provided that the cross-sectional SEM image is a reflected electron image acquired at an acceleration voltage of 10 kV, wherein the carbon material has an average box-counting dimension relative to void regions of 30 particles of 1.55 or greater, as calculated from images obtained by randomly selecting 30 granulated particles from a cross-sectional SEM image of the carbon material, dividing the cross-sectional SEM image of each granulated particle into void regions and non-void regions, and binarizing the image. Such carbon material may be used in electrodes and batteries.

Abstract: A carbon material may include granulated particles made of a carbonaceous material and satisfying (2L): ? X 1 - X ? / X 1 ? 0.2 , ( 2 ? L ) wherein X is a volume-based average particle diameter determined by laser diffraction, and X1 is an equivalent circular diameter determined from a cross-sectional SEM image, which is a reflected electron image acquired at an acceleration voltage of 10 kV, wherein X and X1 are determined from a cross-sectional SEM image, by drawing grid lines to split the minor axis and the major axis of a target granulated particle each into 20 parts to obtain a grid, and using cells in the grid, compartmentalizing the target granulated particle in a compartment.

Abstract: A carbon material may include granulated particles made of a carbonaceous material and satisfying (2L), ? X 1 - X ? / X 1 ? 0.2 , ( 2 ? L ) wherein X is a volume-based average particle diameter determined by laser diffraction, and X1 is an equivalent circular diameter determined from a cross-sectional SEM image, which is a reflected electron image acquired at 10 kV, wherein the carbon material has an average inter-void distance Z of 30 granulated particles randomly selected from a cross-sectional SEM image of the carbon material, as Zave, and wherein the carbon material has volume-based average particle diameter X determined by laser diffraction in a Zave/X ratio of 0.060 or less.

Abstract: A carbon material may satisfying inequality (1K): 10.914 > 5 ? x k - y k - 0.0087 ? a , ( 1 ? K ) wherein a is a volume-based average particle diameter in um of the carbon material, xk is a true density in g/cm3 of the carbon material, and yk is a value determined by equation (2K): y k = D 100 - D T , ( 2 ? K ) wherein D100 is density in g/cm3 of carbon material under uniaxial load of 100 kgf/3.14 cm2, and DT is tap density of carbon material in g/cm3. Such carbon materials may be used in electrodes and batteries.

Abstract: An objet of the invention is to provide a non-aqueous electrolyte secondary battery superior in input-output characteristics even at a low temperature. To achieve the object, hybrid particles (carbon material) satisfying certain conditions, and composed of graphite particles and carbon particles with a primary particle size from 3 nm to 500 nm, preferably as well as amorphous carbon, are used as a negative electrode active material for a non-aqueous electrolyte secondary battery, so that the input-output characteristics of a non-aqueous electrolyte secondary battery at a low temperature can be improved remarkably.

Abstract: Provided is a method to manufacture a composite carbon material capable of obtaining a non-aqueous secondary battery, which has high capacity, initial efficiency, and low charging resistance and is excellent in productivity. As a result thereof, a high-performance non-aqueous secondary battery is stably provided with efficiency. A composite carbon material for a non-aqueous secondary battery is provided, which contains at least a bulk mesophase artificial graphite particle (A) and graphite particle (B) having an aspect ratio of 5 or greater, and which is capable of absorbing and releasing lithium ions. A graphite crystal layered structure of the graphite particle (B) is arranged in the same direction as a direction of an outer peripheral surface of the bulk mesophase artificial graphite particle (A) at a part of a surface of the bulk mesophase artificial graphite particle (A), and an average circularity of the composite carbon material is 0.9 or greater.

Abstract: Provided is a carbon material capable of obtaining a non-aqueous secondary battery, which has high capacity, initial efficiency, and low charging resistance and is excellent in productivity. As a result thereof, a high-performance non-aqueous secondary battery is stably provided with efficiency. A composite carbon material for a non-aqueous secondary battery is provided, which contains at least a bulk mesophase artificial graphite particle (A) and graphite particle (B) having an aspect ratio of 5 or greater, and which is capable of absorbing and releasing lithium ions. A graphite crystal layered structure of the graphite particle (B) is arranged in the same direction as a direction of an outer peripheral surface of the bulk mesophase artificial graphite particle (A) at a part of a surface of the bulk mesophase artificial graphite particle (A), and an average circularity of the composite carbon material is 0.9 or greater.

Abstract: A carbon material for a non-aqueous secondary battery containing a graphite capable of occluding and releasing lithium ions, and having a cumulative pore volume at pore diameters in a range of 0.01 ?m to 1 ?m of 0.08 mL/g or more, a roundness, as determined by flow-type particle image analysis, of 0.88 or greater, and a pore diameter to particle diameter ratio (PD/d50 (%)) of 1.8 or less, the ratio being given by equation (1A): PD/d50 (%)=mode pore diameter (PD) in a pore diameter range of 0.01 ?m to 1 ?m in a pore distribution determined by mercury intrusion/volume-based average particle diameter (d50)×100 is provided.

Abstract: An object of the present invention is to provide a carbon material for negative electrodes of non-aqueous secondary batteries having a high capacity, a high output, excellent cycle characteristics and a low irreversible capacity. The present invention relates to a carbon material for negative electrodes of non-aqueous secondary batteries, the carbon material comprising: (1) a composite carbon particles (A) containing elemental silicon, and (2) amorphous composite graphite particles (B) in which graphite particles (C) and amorphous carbon are composited.

Abstract: The present invention resolves the problem by using a multilayer-structured carbon material, as a nonaqueous electrolytic solution secondary battery negative electrode, which satisfies the following (a) and (b): (a) (Void fraction calculated from DBP oil absorption)/(Void fraction calculated from tapping density) is less than 1.01; and (b) Surface oxygen content (O/C) determined by X-ray photoelectron spectroscopy is 1.5 atomic % or more.

Abstract: An objet of the invention is to provide a non-aqueous electrolyte secondary battery superior in input-output characteristics even at a low temperature. To achieve the object, hybrid particles (carbon material) satisfying certain conditions, and composed of graphite particles and carbon particles with a primary particle size from 3 nm to 500 nm, preferably as well as amorphous carbon, are used as a negative electrode active material for a non-aqueous electrolyte secondary battery, so that the input-output characteristics of a non-aqueous electrolyte secondary battery at a low temperature can be improved remarkably.

Abstract: An object of the invention is to provide composite graphite particles (C) for nonaqueous-secondary-battery negative electrode, wherein metallic particle (B) capable of alloying with Li are present in inner parts thereof in a large amount. The invention relates to a composite graphite particle (C) for nonaqueous-secondary-battery negative electrode, the composite graphite particle (C) comprising a graphite (A) and a metallic particle (B) capable of alloying with Li, wherein when a section of the composite graphite particle (C) is examined with a scanning electron microscope, a folded structure of the graphite (A) is observed and a presence ratio of the metallic particle (B) in the composite graphite particle (C), as calculated by a specific measuring method, is 0.2 or higher.

Abstract: This invention aims to provide a carbon material for a nonaqueous secondary battery having a high capacity and excellent charging/discharging load characteristics, which is used as a negative electrode material for a nonaqueous secondary battery. This invention relates to a carbon material for a nonaqueous secondary battery, which has a specific (1) Raman R value, (2) N atom concentration/C atom concentration ratio, and (3) S atom concentration/C atom concentration ratio.

Abstract: This invention aims to provide a carbon material for a nonaqueous secondary battery having a high capacity and excellent charging/discharging load characteristics, which is used as a negative electrode material for a nonaqueous secondary battery. This invention relates to a carbon material for a nonaqueous secondary battery, which has a specific (1) Raman R value, (2) N atom concentration/C atom concentration ratio, and (3) S atom concentration/C atom concentration ratio.

Abstract: A negative-electrode material is provided that can be produced at a low cost and yields a lithium secondary battery with an excellent balance of various battery characteristics even when used in high electrode densities. It has a graphite powder with a tap density of 0.80 g/cm3 or higher and 1.35 g/cm3 or lower, an amount of surface functional groups, O/C value, of 0 or larger and 0.01 or smaller, a BET specific surface area of 2.5 m2/g or larger and 70 m2/g or smaller, a Raman R value of 0.02 or larger and 0.05 or smaller.

Abstract: The present invention resolves the problem by using a multilayer-structured carbon material, as a nonaqueous electrolytic solution secondary battery negative electrode, which satisfies the following (a) and (b): (a) (Void fraction calculated from DBP oil absorption)/(Void fraction calculated from tapping density) is less than 1.01; and (b) Surface oxygen content (O/C) determined by X-ray photoelectron spectroscopy is 1.5 atomic % or more.