Abstract: A room-temperature-curable organopolysiloxane composition for an oil seal, wherein an organosilane compound containing a specific organo-oxymethyl group and represented by formula (1) below and/or a partial hydrolysis condensate of said compound is used as a curing agent (crosslinking agent), and an organic compound having a guanidine skeleton is added in combination as a curing catalyst. In the formula, each R1 is independently a C1-12 unsubstituted or substituted monovalent hydrocarbon group, R2 is a C1-12 unsubstituted or substituted monovalent hydrocarbon group, Y is a hydrolyzable group, and n is 0, 1 or 2.

Abstract: A positive electrode active material for an alkaline storage battery having excellent over-discharge tolerance and high-temperature tolerance, and a method for producing the positive electrode active material. A positive electrode active material for an alkaline storage battery, containing a hydroxide particle containing at least nickel and solid-solubilized cobalt, and a covering layer containing cobalt, the covering layer covering the hydroxide particle, in which cobalt contained in the covering layer and cobalt contained in the hydroxide particle each have a diffraction peak between diffraction angles of 65° and 66°, the diffraction angles each represented by 2? in a diffraction pattern obtained by X-ray diffraction measurement.

Abstract: The nickel composite hydroxide that is a precursor of a positive electrode active material of a non-aqueous electrolyte secondary battery, comprising Ni, Co, and one or more additive metal elements M selected from the group consisting of Mn, Al, Fe, and Ti, wherein when a peak intensity of a diffraction peak appearing in a range of 2?=8.0±2.0° in powder X-ray diffraction measurement using CuK? rays is defined as ?, and a peak intensity of a diffraction peak appearing in a range of 2?=19.0±2.0° in powder X-ray diffraction measurement using CuK? rays is defined as ?, of the nickel composite hydroxide having a secondary particle diameter having a cumulative volume percentage of 90% by volume (D90) or more, a value of ?/? is 13.0 or less.

Abstract: The present disclosure provides a precursor of a positive electrode active material, capable of obtaining the positive electrode active material that can exhibit a high discharge capacity and high charge/discharge efficiency, by being mounted on a secondary battery using a non-aqueous electrolyte, and the positive electrode active material obtained from the precursor, as well as a method for producing the positive electrode active material. The nickel composite hydroxide particles that are precursors of a positive electrode active material of a non-aqueous electrolyte secondary battery, having a void ratio of 45.0% or more and 55.0% or less.

Abstract: A positive electrode active material includes a composite particle. The composite particle includes a core particle and a covering layer. The core particle includes a nickel composite hydroxide. The nickel composite hydroxide is represented by the following formula: Nix1Zn1-x1-y1Coy1(OH)2 (where x1 and y1 satisfy 0.90?x1<1.00, 0?y1?0.01, and 0<(1?x1?y1)). The covering layer covers at least a part of a surface of the core particle. The covering layer includes a cobalt compound. In an X-ray absorption fine structure obtainable through measurement by a total electron yield method with soft X-ray, cobalt L3 absorption edge has a peak top in a range not less than 780.5 eV.

Abstract: A positive electrode active material for an alkaline storage battery having excellent over-discharge tolerance and high-temperature tolerance, and a method for producing the positive electrode active material. A positive electrode active material for an alkaline storage battery, containing a hydroxide particle containing at least nickel and solid-solubilized cobalt, and a covering layer containing cobalt, the covering layer covering the hydroxide particle, in which cobalt contained in the covering layer and cobalt contained in the hydroxide particle each have a diffraction peak between diffraction angles of 65° and 66°, the diffraction angles each represented by 2? in a diffraction pattern obtained by X-ray diffraction measurement.

Abstract: To provide a positive electrode active material for an alkaline storage battery having an excellent utilization factor even under a high-temperature condition. A positive electrode active material for an alkaline storage battery, having a hydroxide particle containing nickel, the hydroxide particle containing solid-solubilized cobalt, and a covering layer containing cobalt, the covering layer covering the hydroxide particle, in which the positive electrode active material has a diffraction peak between diffraction angles of 65° and 66°, the diffraction angles represented by 2? in a diffraction pattern obtained by X-ray diffraction measurement, a content by percentage of trivalent cobalt in the solid-solubilized cobalt is 30% by mass or more, a ratio of a content by percentage of the solid-solubilized trivalent cobalt in positive electrode active material particles for an alkaline storage battery, the particles having a secondary particle diameter (?D10) where a cumulative volume percentage is 10.

Abstract: An objective of the present invention is to provide a positive electrode active material that can inhibit the capacity changes associated with temperature variations, and an alkaline battery that contains this positive electrode active material. Aluminum and ytterbium are at least partially solid-dissolved in nickel hydroxide in the nickel composite hydroxide present in the positive electrode active material of the present invention.

Abstract: The present disclosure provides a positive electrode active material for sodium ion secondary batteries which has an excellent charge/discharge capacity and can reduce production costs The positive electrode active material for sodium ion secondary batteries comprises an oxyhydroxide containing: Ni or Ni and at least one transition metal element selected from the group consisting of Mg, Mn, Zn, Co and Al; Na; and S.

Abstract: An objective of the present invention is to provide a positive electrode active material that can inhibit the capacity changes associated with temperature variations, and an alkaline battery that contains this positive electrode active material. Aluminum and ytterbium are at least partially solid-dissolved in nickel hydroxide in the nickel composite hydroxide present in the positive electrode active material of the present invention.

Abstract: A lithium-rich lithium metal complex oxide contains at least 50 mol % of Mn with respect to a total amount of metals other than lithium, and at least one other metal. The lithium metal complex oxide has a tapped density in a range of 1.0 g/ml to 2.0 g/ml.