Abstract: The positive electrode mixture layer of this nonaqueous electrolyte secondary battery positive electrode, which is one exemplary embodiment, contains a first lithium-transition-metal composite oxide represented by general formula LixNi1-y-zCoyMzO2 (in the formula. 0.8?x?1.2, 0?y?0.2, 0<z?0.5, and M is at least one metal element excluding Li, Ni, and Co), a second lithium-transition-metal composite oxide represented by general formula LiaNi2-a-bMebO2 (in the formula, 0<a?0.5, 0?b?0.5, and Me is at least one metal element excluding Li and Ni), and a carbon nanotube.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode includes a silicon-containing carbon material. The silicon-containing carbon material includes an amorphous carbon phase, and silicon phases dispersed in the amorphous carbon phase. The nonaqueous electrolyte contains a nonaqueous solvent, and a salt dissolved in the nonaqueous solvent. The nonaqueous solvent contains fluoroethylene carbonate and a fluorine-containing carboxylic acid ester.

Abstract: This conductive material liquid dispersion which is an example of an embodiment contains a conductive material, a dispersant, and an aprotic polar solvent. The conductive material has carbon nanotubes as a main component, and the dispersant contains nitrile rubber. The volume-based median diameter of the conductive material in a state dispersed in the polar solvent is less than 3 ?m.

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery according to one exemplary embodiment comprises: a first lithium transition metal composite oxide represented by general formula LiaNibM11-bO2 (in the formula, 1.5?a?2.5, 0.95?b?1.00, and M1 is at least one metal element excluding Li and Ni); and a second lithium transition metal composite oxide represented by general formula LicNi2-c-dM2dO2 (in the formula, 0<c?0.5, 0?d?0.5, and M2 is at least one metal element excluding Li and Ni).

Abstract: An object of the present disclosure is to provide a first access point, a communication system, a method, and a program that enable a wireless terminal to seamlessly roam to an access point in a communication system including a plurality of access points and the wireless terminal. A first access point according to the present disclosure includes a first transmission unit that transmits, to a second access point among a plurality of wireless links, key information that is necessary for using a first wireless link among the plurality of wireless links and can be used in common in a second wireless link, and association information of a wireless terminal, and a second transmission unit that transmits, to the wireless terminal, identification information for connecting to the second access point using the second wireless link.

Abstract: A disclosed conductive material dispersion liquid includes a conductive material including carbon nanotubes, dispersants, and a polar aprotic solvent. The dispersants include a polyvinylpyrrolidone-based compound and a cellulose derivative.

Abstract: A disclosed positive electrode for a nonaqueous electrolyte secondary battery includes a positive-electrode current collector and a positive-electrode mixture layer on a surface of the positive-electrode current collector. The positive-electrode mixture layer includes a positive-electrode active material, a conductive material, and binders. The binders include a polyvinylpyrrolidone-based compound and a cellulose derivative.

Abstract: A disclosed conductive material dispersion liquid includes a conductive material including carbon nanotubes, dispersants, and a polar aprotic solvent. The dispersants include a polyvinylpyrrolidone-based compound and a cellulose derivative.

Abstract: A lithium secondary battery, including: a positive electrode; a negative electrode; a non-aqueous electrolyte having lithium ion conductivity; and a separator interposed between the positive electrode and the negative electrode. The positive electrode includes a positive electrode mixture layer containing a positive electrode active material, and a positive electrode current collector. The positive electrode active material includes a composite oxide containing lithium and a transition metal. A molar ratio: MLi/MTM of a total lithium amount per unit area MLi in the positive electrode and the negative electrode to a transition metal amount per unit area MTM in the positive electrode is 1.1 or less. The negative electrode includes a negative electrode current collector, and a plurality of porous films laminated on the negative electrode current collector and having electrically insulating properties.

Abstract: A lithium secondary battery with a positive electrode active material including a composite oxide containing lithium and a transition metal. A molar ratio: MLi/MTM of a total lithium amount per unit area MLi in a positive electrode and a negative electrode to a transition metal amount per unit area MTM in the positive electrode is 1.1 or less. The negative electrode includes a negative electrode current collector larger in area than the positive electrode mixture layer. In the wound electrode group in an unwound state, center lines dividing the positive electrode mixture layer and the negative electrode current collector along their winding direction into two halves are not on the same straight line. The negative electrode lead is connected at its one end to a non-facing region not facing the positive electrode mixture layer of the negative electrode current collector.

Abstract: This positive electrode for a secondary battery is characterized in that: the positive electrode for a secondary battery comprises a positive electrode current collector, and a positive electrode mixture layer which is disposed on the positive electrode current collector and which includes a positive electrode active substance and a binder; the binder contains a polymer binder having a three-dimensional mesh structure; and if the positive electrode mixture layer is divided into two equal parts in the thickness direction, with the lower half on the positive electrode current collector side set as a first region and the upper half on the side of surface of the positive electrode mixture layer set as a second region, the first region contains more of the polymer binder having a three-dimensional mesh structure than the second region.

Abstract: This positive electrode for secondary batteries is characterized by comprising: a positive electrode current collector; and a positive electrode mixture layer that contains a positive electrode active material. The positive electrode for secondary batteries is characterized in that: when the positive electrode mixture layer is divided into two in the thickness direction, and the lower half on the positive electrode current collector side is denoted as a first region and the upper half on the surface side of the positive electrode current collector is denoted as a second region, the first region and the second region contain the same kind of electrical conductive material; and the D-band/G-band ratio (X) of the Raman spectrum obtained by the electrical conductive material in the first region is larger than the D-band/G-band ratio (Y) of the Raman spectrum obtained by the electrical conductive material in the second region.

Abstract: A secondary battery including a positive electrode including a positive electrode active material capable of electrochemically absorbing and releasing lithium ions, a negative electrode including a negative electrode active material capable of electrochemically absorbing and releasing lithium ions, a separator interposed between the positive and negative electrodes, and a non-aqueous electrolyte. The positive electrode includes a positive electrode material mixture containing the positive electrode active material and a positive electrode additive. The positive electrode additive includes a compound represented by LiaFexMyOz, where 0?a?5, 0?x?5, 0?y?1, and 0?z?4, with at least two of a, x, y and z being more than 0, and M includes at least one kind selected from the group consisting of Mn, Zn, Al, Ga, Ge, Ti, Si, Sn, Ce, Y, Zr, S, and Na.

Abstract: A disclosed conductive material dispersion liquid includes a conductive material including carbon nanotubes, dispersants, and a polar aprotic solvent. The dispersants include a polyvinylpyrrolidone-based compound and a cellulose derivative.

Abstract: A disclosed positive electrode for a nonaqueous electrolyte secondary battery includes a positive-electrode current collector and a positive-electrode mixture layer on a surface of the positive-electrode current collector. The positive-electrode mixture layer includes a positive-electrode active material, a conductive material, and binders. The binders include a polyvinylpyrrolidone-based compound and a cellulose derivative.

Abstract: A piezoelectric ceramic containing no lead as a constituent element is provided. Coefficient of variation C.V. of grain size of grains contained in the piezoelectric ceramic is 35% or less, and an image quality (IQ) image obtained by analyzing a cross section of the piezoelectric ceramic by an electron backscatter diffraction (EBSD) method shows that at least one of the grains has a grain size of 3 ?m to 5 ?m and an area ratio of a domain in said at least one of the grains is 85% or more.

Abstract: This non-aqueous electrolyte secondary battery, which is one example of an embodiment, comprises: a positive electrode that has a positive electrode mixture layer; a negative electrode; a separator that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode mixture layer contains a first lithium-and-transition-metal composite oxide represented by general formula LixNi1?y?zCoyMzO2 (in the formula, 0.8?x?1.2, 0?y?0.2, 0<z?0.5, and M is at least one metal element excluding Li, Ni, and Co), and a second lithium-and-transition-metal composite oxide represented by general formula LiaNi2?a?bMebO2 (in the formula, 0<a?0.5, 0?b?0.5, and Me is at least one metal element excluding Li and Ni). The separator has: a base material; and a surface layer that includes inorganic particles and a binder, and is formed on the surface of the base material facing toward the positive electrode.

Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present invention contains: a first lithium transition metal composite oxide that is represented by general formula LixNi1-y-zCoyMzO2 (wherein 0.8?x?1.2, 0?y?0.2, 0<z?0.5, and M represents at least one metal element excluding Li, Ni and Co); and a second lithium transition metal composite oxide that has at least one diffraction peak which has a peak top at a diffraction angle (2?) of from 21.40° to 21.65° in radiation X-ray diffraction (with a light energy of 16 keV).

Abstract: The positive electrode mixture layer of this nonaqueous electrolyte secondary battery positive electrode, which is one exemplary embodiment, contains a first lithium-transition-metal composite oxide represented by general formula LixNi1?y?zCoyMzO2 (in the formula. 0.8?x?1.2, 0?y?0.2, 0<z?0.5, and M is at least one metal element excluding Li, Ni, and Co), a second lithium-transition-metal composite oxide represented by general formula LiaNi2?a?bMebO2 (in the formula, 0<a?0.5, 0?b?0.5, and Me is at least one metal element excluding Li and Ni), and a carbon nanotube.

Abstract: This non-aqueous electrolyte secondary battery, which is one example of an embodiment, comprises: a positive electrode that has a positive electrode mixture layer; a negative electrode; and a non-aqueous electrolyte. The positive electrode mixture layer contains a first lithium-and-transition-metal composite oxide represented by general formula LixNi1-y-zCoyMzO2 (in the formula, 0.8?x?1.2, 0?y?0.2, 0<z?0.5, and M is at least one metal element excluding Li, Ni, and Co), and a second lithium-and-transition-metal composite oxide represented by general formula LiaNi2-a-bMebO2 (in the formula, 0<a?0.5, 0?b?0.5, and Me is at least one metal element excluding Li and Ni). The non-aqueous electrolyte contains a sulfonyl imide salt.