Abstract: An electrode material, an electrode, and a lithium ion battery in which it is possible to improve not only the amount of gas generated in the battery during charge and discharge but also the deterioration of battery components without reducing the charge and discharge capacity are provided. The electrode material is an electrode material including carbonaceous electrode active material complex particles which include a carbonaceous material on surfaces of electrode active material particles, in which an oxygen content rate in the carbonaceous material is 5.0% by mass or less, and a coating ratio of the carbonaceous material on the surfaces of the carbonaceous electrode active material complex particles is 60% or more.

Abstract: An electrode material is provided in which a coating of a carbonaceous material is formed efficiently, uniformly and strongly on the surfaces of electrode active material particles, and therefore electron conductivity and the charge and discharge capacity of batteries are improved. The electrode material includes composite particles, which includes a carbonaceous substance and an electrode active material, wherein a carbonaceous material is provided on surfaces of electrode active material particles, and a standard rate constant of a redox reaction of ferrocene occurring on the surfaces of the composite particles is 1×10?5 cm/s or more.

Abstract: An electrode material includes an electrode active material having a carbonaceous film formed on a surface is used and which is capable of suppressing voltage drop when high-speed charge and discharge is carried out in a low-temperature environment. The electrode material has a particulate shape and is formed a carbonaceous film on surfaces of electrode active material particles. An average of discharge capacity ratios between a 35C discharge capacity at ?10° C. of a single particle of the electrode material and a 1C discharge capacity at ?10° C. of a single particle of the electrode material is 0.50 or more.

Abstract: A carbon-coated active material composite, an electrode and a lithium ion battery capable of improving electron conductivity and lithium ion conductivity when an electrode active material having a carbonaceous film formed on the surface is used as an electrode material are provided. In the carbon-coated active material composite, charge migration of lithium ions occurs at an interface between a carbonaceous film and an electrode active material, an activation energy of an insertion and removal reaction of lithium ions at an interface between the carbon-coated active material composite and an electrolytic solution is 45 kJ/mol to 85 kJ/mol, a value of a carbon supported amount to a specific surface area of particles of an electrode active material is 0.01 to 0.5, and the activation energy is measured using an electrolyte solution obtained by mixing ethylene carbonate and diethyl carbonate at a 1:1 ratio.

Abstract: An electrode material is provided in which a coating of a carbonaceous material is formed efficiently, uniformly and strongly on the surfaces of electrode active material particles, and therefore electron conductivity and the charge and discharge capacity of batteries are improved. The electrode material includes composite particles, which includes a carbonaceous substance and an electrode active material, wherein a carbonaceous material is provided on surfaces of electrode active material particles, and a standard rate constant of a redox reaction of ferrocene occurring on the surfaces of the composite particles is 1×10?5 cm/s or more.

Abstract: An electrode material for which an electrode active material having a carbonaceous film formed on a surface is used and which is capable of suppressing voltage drop when high-speed charge and discharge is carried out in a low-temperature environment is provided. A electrode material, wherein the electrode material have a particulate shape, the electrode material is formed a carbonaceous film on surfaces of electrode active material particles, and an average of discharge capacity ratios between a 35 C discharge capacity at ?10° C. of a single particle of the electrode material and a 1 C discharge capacity at ?10° C. of a single particle of the electrode material is 0.50 or more.

Abstract: An electrode material in which an electrode active material having a carbonaceous film formed on the surface is used and which is capable of suppressing a voltage drop when high-speed charge and discharge is carried out in a low-temperature environment is provided. A electrode material, wherein the electrode material have a particulate shape, the electrode material is formed a carbonaceous film on surfaces of electrode active material particles, and the carbonaceous film is constituted randomly stacking graphene layers. Preferably, an inflection ratio of a lithium ion migration path in the carbonaceous film in the electrode material is in a range of 1.1 to 100.

Abstract: A carbon-coated active material composite, an electrode and a lithium ion battery capable of improving electron conductivity and lithium ion conductivity when an electrode active material having a carbonaceous film formed on the surface is used as an electrode material are provided. In the carbon-coated active material composite, charge migration of lithium ions occurs at an interface between a carbonaceous film and an electrode active material, an activation energy of an insertion and removal reaction of lithium ions at an interface between the carbon-coated active material composite and an electrolytic solution is 45 kJ/mol to 85 kJ/mol, a value of a carbon supported amount to a specific surface area of particles of an electrode active material is 0.01 to 0.5, and the activation energy is measured using an electrolyte solution obtained by mixing ethylene carbonate and diethyl carbonate at a 1:1 ratio.

Abstract: An electrode material, an electrode, and a lithium ion battery in which it is possible to improve not only the amount of gas generated in the battery during charge and discharge but also the deterioration of battery components without reducing the charge and discharge capacity are provided. The electrode material is an electrode material including carbonaceous electrode active material complex particles which include a carbonaceous material on surfaces of electrode active material particles, in which an oxygen content rate in the carbonaceous material is 5.0% by mass or less, and a coating ratio of the carbonaceous material on the surfaces of the carbonaceous electrode active material complex particles is 60% or more.