Abstract: The invention includes, as a positive electrode material, active material particles comprising a lithium-containing manganese oxide represented by the general formula: Li1+aMn2?x?aMxO4+y where M is a transition metal element other than Mn, 0<x?0.5, ?0.2?y?0.5, and 0?a?0.33. The molar ratio A of M to the total of Mn and M in the surface of the active material particles and the molar ratio B of M to the total of Mn and M in the whole active material particles satisfy the relations: A/B>1.0 and A?0.3. In an X-ray diffraction analysis using CuKa radiation as an X-ray source, the intensity ratio of the largest peak of peaks attributed to an oxide of the transition metal element M to a peak around 2?=36.4° is 0.25 or less.

Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material that comprises a lithium-containing manganese oxide, and the negative electrode includes a negative electrode active material that comprises silicon and a transition metal element. When the battery voltage is 0 V, the positive electrode and the negative electrode have a potential of 1.8 V or higher relative to lithium metal (Li/Li+). Since the deterioration of the positive and negative electrode active materials is suppressed, this non-aqueous electrolyte secondary battery has both high capacity and excellent deep discharge cycle life.

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery including a manganese oxide having a spinel structure, wherein the manganese oxide is represented by the general formula: Li1+aMn2?x?aMxO4+y, where M is a transition metal element having an oxidation number of 2 or greater, M?Mn, 0.17?x?0.5, ?0.2?y?0.5 and 0?a?0.2.

Abstract: The invention includes, as a positive electrode material, active material particles comprising a lithium-containing manganese oxide represented by the general formula: Li1+aMn2?x?aMxO4+y where M is a transition metal element other than Mn, 0<x?0.5, ?0.2?y?0.5, and 0?a?0.33. The molar ratio A of M to the total of Mn and M in the surface of the active material particles and the molar ratio B of M to the total of Mn and M in the whole active material particles satisfy the relations: A/B>1.0 and A?0.3. In an X-ray diffraction analysis using CuKa radiation as an X-ray source, the intensity ratio of the largest peak of peaks attributed to an oxide of the transition metal element M to a peak around 2?=36.4° is 0.25 or less.

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery including a manganese oxide having a spinel structure, wherein the manganese oxide is represented by the general formula: Li1+aMn2?x?aMxO4+y, where M is a transition metal element having an oxidation number of 2 or greater, M?Mn, 0.17?x?0.5, ?0.2?y??0.5 and 0?a?0.2.

Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material that comprises a lithium-containing manganese oxide, and the negative electrode includes a negative electrode active material that comprises silicon and a transition metal element. When the battery voltage is 0 V, the positive electrode and the negative electrode have a potential of 1.8 V or higher relative to lithium metal (Li/Li+). Since the deterioration of the positive and negative electrode active materials is suppressed, this non-aqueous electrolyte secondary battery has both high capacity and excellent deep discharge cycle life.

Abstract: Manganese dioxide of this invention comprises monocrystalline particles with a ?-type crystal structure. The use of such manganese dioxide as an active material of a battery makes it possible to improve the discharge characteristics and long-term reliability of the battery.

Abstract: The present invention relates to an organic electrolyte battery configured by sealing power generating elements comprising an organic electrolyte by a positive can, a negative can and a gasket, wherein said organic electrolyte includes a lithium salt containing a sulfonic acid group as a solute and at least one selected from a group consisting of sulfolane, 3-methyl sulfolane and Tetraglyme as a solvent. The aim of the invention is to provide an organic electrolyte battery having an excellent discharge performance in a low temperature environment and a superior reliability during long term storage, as well as a high temperature resistance which enables the battery to be mounted onto a substrate according to the Reflow method.