The present disclosure relates to an aerogel composite and an insulation member including the same, wherein the aerogel composite may maintain insulation constant without significant degradation even when exposed to a pressurization environment. The aerogel composite includes a substrate including a plurality of discrete fibers and voids between the fibers; and silica aerogel including a plurality of aerogel particles positioned on the fiber and in the voids between the fibers, and having a network structure including one or more pores, wherein when a pressure of 150 N/cm.sup.2 is applied in a thickness direction with respect to the aerogel composite, a volume ratio of aerogel including pores and voids between discrete fibers per unit volume of the aerogel composite is 0.85 times to 1 time compared to before the pressure was applied.

A metal composite hydroxide represented by a general formula (1): Ni.sub.1xyCo.sub.xMn.sub.yM.sub.z(OH).sub.2+ (where 0.02x0.3, 0.02y0.3, 0z0.05, and 0.50.5 are satisfied and M is at least one element selected from the group consisting of Mg, Ca, Al, Si, Fe, Cr, V, Mo, W, Nb, Ti, and Zr), in which the metal composite hydroxide contains a first particle having a core portion inside the particle and a shell portion formed around the core portion and [(D90D10)/MV] is less than 0.80.

A composition is provided comprising one or more of alpha lead oxide, beta lead oxide, metallic lead. Pb.sub.2O.sub.3 and Pb.sub.3O.sub.4, the composition comprising particles comprising sub-particles, the sub-particles having a mean greatest dimension of from 10 to 300 nm. Methods of making such a composition are also described.

A nickel manganese cobalt composite hydroxide, which is a precursor of positive electrode active material, and composed of secondary particles wherein primary particles containing nickel, manganese, and cobalt are aggregated, or composed of primary and secondary particles, wherein sodium content contained in nickel manganese cobalt composite hydroxide is less than 0.0005% by mass, and void ratio of particles of nickel manganese cobalt composite hydroxide is 20% to 50%. Also, ratio of average particle size of lithium nickel manganese cobalt composite oxide divided by average particle size of nickel manganese cobalt composite hydroxide, which is a precursor, is 0.95 to 1.05, and further, when observing 100 or more particles of lithium nickel manganese cobalt composite oxide selected randomly by scanning electron microscope, number that aggregation of secondary particles is observed is 5% or less with respect to total number of observed secondary particles.

The solid electrolyte material of the present disclosure is a solid electrolyte material made of Li, Ca, Y, Gd, X, and O, where X is at least one selected from the group consisting of F, Cl, Br, and I; the molar ratio of O to the sum of Y and Gd in the entire solid electrolyte material is greater than 0 and 0.42 or less; and O is present in a surface region of the solid electrolyte material.

A carbon composite channel (10) and method of manufacturing a carbon composite channel. The method entails applying layers of carbon fiber alternatingly in a circumferential and an axial direction, applying liquid carbon, a liquid carbon-containing solution, or a liquid pre-cursor for glassy carbon to one or more layers of carbon fiber before applying the next layer of carbon fiber, and subsequently curing the pre-cursor by exposure to a heat treatment at a temperature below 1200 C.

A solid electrolyte material of the present disclosure includes: Li; Zr; Fe; O; and X. The X is at least one selected from the group consisting of F, Cl, Br, and I. In an X-ray diffraction pattern obtained by X-ray diffraction measurement using a Cu-K ray, a first peak is present within a range of a diffraction angle 2 from 14.7 to 15.1, a second peak is present within a range of the diffraction angle 2 from 29.9 to 30.7, and a third peak is present within a range of the diffraction angle 2 from 34.1 to 34.8.

The present disclosure relates to an aerogel composite and an insulation member including the same, wherein the aerogel composite may maintain insulation constant without significant degradation even when exposed to a pressurization environment. The aerogel composite includes a substrate including a plurality of discrete fibers and voids between the fibers; and silica aerogel including a plurality of aerogel particles positioned on the fiber and in the voids between the fibers, and having a network structure including one or more pores, wherein when a pressure of 150 N/cm.sup.2 is applied in a thickness direction with respect to the aerogel composite, a volume ratio of aerogel including pores and voids between discrete fibers per unit volume of the aerogel composite is 0.85 times to 1 time compared to before the pressure was applied.