Patent application number | Description | Published |
20100092865 | CARBON COMPOSITE MATERIALS AND PROCESS FOR PRODUCTION THEREOF - The invention provides materials capable of giving electrodes having the smaller rate of the capacity loss due to an irreversible capacity in the initial cycle in the charge and discharge cycle test as compared with electrodes comprising conventional materials; and a process for the production thereof. A carbon composite material comprising a carbon material and a metal oxide coating on the surface of the carbon material, wherein the metal oxide is an Fe-containing metal oxide; a carbon composite material, wherein the above-described carbon material is mesoporous carbon; a carbon composite material, wherein the above-described Fe-containing metal oxide is Fe | 04-15-2010 |
20110059363 | LITHIUM MIXED METAL OXIDE - A lithium mixed metal oxide containing Li, Mn and M (M represents at least one metal element, and is free from Li or Mn), and having a peak around 1.5 Å (peak A), a peak around 2.5 Å (peak B), and the value of I | 03-10-2011 |
20120301390 | METHOD FOR MANUFACTURING A LITHIUM COMPLEX METAL OXIDE - A method for producing a lithium mixed metal oxide, which includes mixing a lithium compound, metallic Ni or a compound thereof, and one or more transition metals selected from the group consisting of Mn, Co, Ti, Cr and Fe or a compound thereof; and calcining the obtained raw material mixture under an atmosphere of the concentration of carbon dioxide of from 1% by volume to 15% by volume at 630° C. or higher. | 11-29-2012 |
Patent application number | Description | Published |
20090104526 | POWDER FOR POSITIVE ELECTRODE AND POSITIVE ELECTRODE MIX - The powder for a positive electrode of the present invention comprises a positive electrode active material powder comprising primary particles and aggregated particles of primary particles, 90% or more of particles out of primary particles and aggregated particles of primary particles in the powder having a particle diameter of 0.01 μm or more and 5 μm or less, and comprises a graphite powder comprising graphite particles, 90% or more of particles out of graphite particles in the powder having a particle diameter of 0.1 μm or more and 10 μm or less as a maximum particle diameter. When the powder for a positive electrode is used for a nonaqueous electrolyte secondary battery, it becomes possible to exhibit a high discharge capacity and also exhibit a high output at a high current rate. | 04-23-2009 |
20090104531 | POSITIVE ELECTRODE ACTIVE MATERIAL POWDER - The positive electrode active material powder of the present invention is a positive electrode active material powder, including primary particles and aggregated particles of primary particles, wherein an average particle diameter of primary particles and aggregated particles of primary particles in the powder is 0.1 μm or more and 3 μm or less on a volume basis, the percentage of [volumetric sum of particles having a particle diameter of 5 μm or more]/[volumetric sum of entire particles] is 10% or less, and a BET specific surface area of the powder is more than 2 m | 04-23-2009 |
20090280412 | LITHIUM COMPOSITE METAL OXIDE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a lithium composite metal oxide containing Li and at least one transition metal element, wherein at least one lithium composite metal oxide particle constituting the lithium composite metal oxide has both hexagonal and monoclinic crystal structures. Further, the present invention also provides a lithium composite metal oxide containing Li, Ni and M (where, M represents one or more kinds of transition metal elements selected from the group consisting of Mn, Co and Fe), having a diffraction peak (diffraction peak A) at an angle 2θ in a range from 20° to 23° in a powder X-ray diffraction pattern of a lithium composite metal oxide which is obtained by powder X-ray diffraction measurement made in the condition that CuKα is used as a radiation source and the measurement range of diffraction angle 2θ is in a range from 10° to 90°. | 11-12-2009 |
20090309062 | LITHIUM COMPOSITE METAL OXIDE - Provided is a lithium composite metal oxide containing Li, Ni and M (wherein, M is Mn and/or Co), characterized by exhibiting Signal B below in a spectrum at a rotational speed of 10 kHz among the solid-state nuclear magnetic resonance spectra of | 12-17-2009 |
20100047691 | LITHIUM SECONDARY BATTERY - The present invention provides a lithium secondary battery having a positive electrode, a negative electrode, and a solid electrolyte and characterized in that the positive electrode contains positive electrode active material particles made of particles of a material capable of doping/dedoping lithium ion and an element M-containing compound (herein, the element M-containing compound is a compound containing one or more elements selected from B, Al, Mg, Co, Cr, Mn, and Fe as the element M) disposed on the surfaces of the particles as particles or in a layered state. | 02-25-2010 |