Abstract: A positive electrode for a rechargeable lithium ion battery includes a mixture layer including a positive-electrode active material, a conducting agent, and a binder and a collector having the mixture layer formed on the surface thereof. The positive-electrode active material is a composite oxide having an olivine structure expressed by a formula LiaMxPO4 (where M represents a transition metal including at least one of Fe and Mn and a and x satisfy 0<a?1.1 and 0.9?x?1.1). The conducting agent includes fibrous carbon. A carbon coating layer is formed on the surface of the collector. A part of the positive-electrode active material and a part of the fibrous carbon enter pits formed in the carbon coating layer.

Abstract: A positive electrode for a rechargeable lithium ion battery includes a mixture layer including a positive-electrode active material, a conducting agent, and a binder and a collector having the mixture layer formed on the surface thereof. The positive-electrode active material is a composite oxide having an olivine structure expressed by a formula LiaMxPO4 (where M represents a transition metal including at least one of Fe and Mn and a and x satisfy 0<a?1.1 and 0.9?x?1.1). The conducting agent includes fibrous carbon. A carbon coating layer is formed on the surface of the collector. A part of the positive-electrode active material and a part of the fibrous carbon enter pits formed in the carbon coating layer.

Abstract: The present invention provides a high-output lithium secondary battery. A cathode for lithium ion secondary battery of the present invention is used for a lithium secondary battery including a non-aqueous electrolyte solution. The cathode includes a complex oxide having an olivine structure represented by a chemical formula LiaMxPO4 (0<a?1.2, 0.9?x?1.1, and M is a transition metal including Fe or Mn), where a peak intensity ratio (I(020)/I(101)) between (020) and (101) of the cathode measured by X-ray diffraction using Cu—K? radiation is 3.5 or more and 4.2 or less, and is preferably 3.8 or more and 4.2 or less. Preferably, the cathode material has a primary particle diameter of between 20 nm and 200 nm, and a specific surface area of between 10 m2/g and 30 m2/g.

Abstract: A positive electrode material for lithium secondary battery having high electron conductivity even at very low temperatures and a lithium secondary battery with the use of the positive electrode material are provided. The positive electrode material for lithium secondary battery has secondary particles formed of primary particles made of lithium complex oxides composited with ultrathin carbon fibers having lengths equal to or smaller than the diameters of the secondary particles of the positive electrode active material. The ultrathin carbon fibers have opposite ends from which an electrolytic solution moves in and out.

Abstract: A positive electrode material for a lithium secondary battery according to the invention includes a positive electrode active material containing lithium oxide and a carbon composite obtained by dispersing carbon fiber and a clamped shape carbon material, and the positive electrode active material is combined with the carbon composite. In the positive electrode material for a lithium secondary battery constructed as described above, a conductive network between primary particles is formed by the carbon composite while the positive electrode active material (primary particles) are condensed to form secondary particles.

Abstract: Disclosed herein are a cathode material for a lithium secondary battery capable of attaining high power and high capacitance simultaneously, and a lithium secondary battery using the same. A cathode material for a lithium secondary battery in which a primary particle constituting a secondary particle of a cathode active material comprises a particle mainly having a particle size of more than 0.1 ?m and less than 0.5 ?m, a specific surface area of the secondary particle is 1.1 m2/g or more and 1.6 m2/g or less, and the narrowest diameter for through pores of the secondary particle as measured by a Perm Porometry is more than 0.1 ?m and less than 0.3 ?m.

Abstract: The present invention provides a lithium secondary battery small in the volume variation caused by charge-discharge and excellent in cycle performance. The lithium secondary battery includes a cathode capable of storing and releasing lithium and an anode capable of storing and releasing lithium, the cathode including a lithium-nickel-manganese-cobalt compound oxide having a layered crystal structure and a lithium-manganese compound oxide having a layered crystal structure distributed in the lithium-nickel-manganese-cobalt compound oxide.

Abstract: An electromagnetic wave absorber for use in the high frequency range above 1 Ghz and a composite member are characterized by the fact that magnetic metal grains are covered with ceramic above 20 volume %. Further, a method of manufacturing the electromagnetic absorber and the composite member is characterized by the fact that composite magnetic particles, in which a plurality of magnetic metal grains and ceramic are unified, are formed through a mechanical alloying method applied to a composite powder composed of magnetic metal powder and ceramic powder. The electromagnetic wave absorber can be used in a semiconductor device, an optical sending module, an optical receiving module, an optical sending and receiving module, an automatic tollgate in which erroneous operation due to electromagnetic wave disturbance is provided by use of the electromagnetic wave absorber.

Abstract: A positive electrode material for lithium secondary battery having high electron conductivity even at very low temperatures, a production method thereof, and a lithium secondary battery with the use of the positive electrode material are provided. The characteristic feature of this positive electrode material for lithium secondary battery is that a positive electrode active material having secondary particles formed of primary particles made of lithium complex oxides and ultrathin carbon fibers having lengths equal to or smaller than the diameters of the secondary particles of the positive electrode active material are composited.

Abstract: An electromagnetic wave absorber for use in the high frequency range above 1 Ghz and a composite member are characterized by the fact that magnetic metal grains are covered with ceramic above 20 volume %. Further, a method of manufacturing the electromagnetic absorber and the composite member is characterized by the fact that composite magnetic particles, in which a plurality of magnetic metal grains and ceramic are unified, are formed through a mechanical alloying method applied to a composite powder composed of magnetic metal powder and ceramic powder. The electromagnetic wave absorber can be used in a semiconductor device, an optical sending module, an optical receiving module, an optical sending and receiving module, an automatic tollgate in which erroneous operation due to electromagnetic wave disturbance is provided by use of the electromagnetic wave absorber.

Abstract: An electromagnetic wave absorber for use in the high frequency range above 1 Ghz and a composite member are characterized by the fact that magnetic metal grains are covered with ceramic above 20 volume %. Further, a method of manufacturing the electromagnetic absorber and the composite member is characterized by the fact that composite magnetic particles, in which a plurality of magnetic metal grains and ceramic are unified, are formed through a mechanical alloying method applied to a composite powder composed of magnetic metal powder and ceramic powder. The electromagnetic wave absorber can be used in a semiconductor device, an optical sending module, an optical receiving module, an optical sending and receiving module, an automatic tollgate in which erroneous operation due to electromagnetic wave disturbance is provided by use of the electromagnetic wave absorber.

Abstract: An object of the present invention is to provide an electromagnetic wave absorber which is excellent in the electromagnetic wave absorbing characteristics in the high frequency range above 1 GHz, and to provide a method of manufacturing the electromagnetic wave absorber and appliances using the electromagnetic wave absorber.

Abstract: A heat and oxidation resistive high strength material utilized in structural body parts subject to bleaching in high temperature/oxidative atmosphere, the body structure of a space vehicle, a combustor, the combustor for a gas turbine, a turbine blade, and a turbine nozzle, is presented. A method for producing this heat and oxidation resistive high strength material is also explained.

Abstract: The disclosure is concerned with a thermal land machine which comprises a heat resistant wall for confining a chamber; a heat resistant composite structure disposed in the chamber and in contact with a hot flowing gas; and an apparatus for introducing the hot gas toward the surface of the composite structure. The composite structure including a heat resistant substrate and a continuous refractory coating formed on the substrate and made of a ceramic material. The refractory coating includes at least two layers in a laminated structure each having fine cracks substantially extended in the direction of the thickness of each of the layers and filled with a refractory material in such a manner that the filled cracks in one layer are disconnected with the filled cracks in the adjacent layer. Therefore, the hot gas cannot permeate into the surface of the substrate.