Abstract: A non-aqueous electrolyte secondary battery including positive and negative electrodes, a non-aqueous electrolytic solution, and a separator, in which: an active material of the positive electrode is a lithium-containing transition metal oxide represented by LixMyOz, where M is at least one element selected from the group consisting of Ni, Co, Mn, Al, Mg, and Mo, and a composition ratio satisfies 0.8?x?1.3, 0.5?y?2, and 1?z?4; an active material of the negative electrode contains one or more compounds of a C-based compound, a Si-based compound, a Sn-based compound, and metal lithium; the non-aqueous electrolytic solution contains two solvents, is separated by the separator, and has a composition of the non-aqueous electrolytic solution in contact with a negative electrode side and a composition of the non-aqueous electrolytic solution in contact with a positive electrode side different from each other.

Abstract: A porous film includes a porous substrate, and a porous layer laminated on at least one surface of the porous substrate. The porous layer contains an organic resin different from a resin constituting the porous substrate. A height of a projection of the porous layer in an interface between the porous substrate and the porous layer is 200 nm or more, and a distance between projections is 1 ?m or more.

Abstract: At low cost, a porous film has high thermal film rupture resistance and outstanding battery characteristics. The porous film has a porous layer on at least one surface of a porous substrate, and if the surface porosity of the porous layer is defined as ? and the cross-sectional void ratio of the porous layer is defined as ?, then ?/? does not exceed 90%.

Abstract: A porous film includes a porous substrate, and a porous layer provided on at least one surface of the porous substrate. The porous layer includes the following resin A and resin B, and satisfies that ?/? is less than 1.0, where ? is a surface opening ratio of the porous layer and ? is a cross-sectional porosity of the porous layer. The resin A is a resin having a melting point of 150° C. or higher, or a resin having no substantial melting point. The resin B is a resin having a melting point of lower than 150° C., or an amorphous resin.

Abstract: A porous film includes: a porous substrate; and a porous layer provided on at least one surface of the porous substrate. The porous layer includes a first porous layer containing the following resin A, and a second porous layer containing the following resin B on the first porous layer, and a mixed-layer thickness (HC) of the first porous layer and the second porous layer is 0.1 ?m or more and 1.0 ?m or less: resin A: a resin having a melting point of 150° C. or higher, or a resin having no substantial melting point; and resin B: a resin having a melting point of lower than 150° C., or an amorphous resin.

Abstract: A porous film includes a porous substrate, and a porous layer laminated on at least one surface of the porous substrate. The porous layer contains an organic resin different from a resin constituting the porous substrate. A height of a projection of the porous layer in an interface between the porous substrate and the porous layer is 200 nm or more, and a distance between projections is 1 ?m or more.

Abstract: A porous film includes a porous substrate, and a porous layer provided on at least one surface of the porous substrate. The porous layer includes the following resin A and resin B, and satisfies that ?/? is less than 1.0, where ? is a surface opening ratio of the porous layer and ? is a cross-sectional porosity of the porous layer. The resin A is a resin having a melting point of 150° C. or higher, or a resin having no substantial melting point. The resin B is a resin having a melting point of lower than 150° C., or an amorphous resin.

Abstract: At low cost, a porous film has high thermal film rupture resistance and outstanding battery characteristics. The porous film has a porous layer on at least one surface of a porous substrate, and if the surface porosity of the porous layer is defined as ? and the cross-sectional void ratio of the porous layer is defined as ?, then ?/? does not exceed 90%.

Abstract: A porous film has a porous layer containing inorganic particles and a heat-resistant resin on at least one surface of a porous substrate, and wherein the heat-resistant resin is (A) a resin that has a melting point of 200° C. or higher or (B) a resin that has no melting point. This porous film has an area thermal shrinkage of 25% or less at 140° C., while having a variation in light transmittance at a wavelength of 800 nm of 15% or less in the length direction as measured at intervals of 5 m.

Abstract: A porous film is excellent in barrier properties such as blood barrier property and viral barrier property, puncture strength, and moisture permeability. A waterproof and moisture-permeable material that uses the porous film, and reduces the stuffy feeling that a person feels when wearing it and is excellent in the wearing comfortableness. The porous film has a degree of moisture permeability greater than or equal to 150 g/m2·h, a puncture strength is greater than or equal to 100 N/mm, and a blood barrier property is class 4 or higher.

Abstract: A porous film has an absorbing height of an electrolysis solution of 10 to 60 mm in at least one direction of the film's machine direction or transverse direction, wherein the absorbing height being measured after 30 minutes from the start of the absorption of the electrolysis solution, and a tensile strength at break in the machine direction of not less than 65 MPa. The porous film provides a porous film that has excellent absorption properties for an electrolysis solution and, when used as a separator, exhibits excellent battery properties and workability.

Abstract: A porous polypropylene film has a number of portions where the quantity of light transmitted through each portion is not smaller than 5 times the average quantity of light transmitted through the film is 0.5 portion or less per 1 m2. The porous polypropylene film has a high porosity and excellent production characteristics, and when used as a separator in an electrical storage device, has excellent quality and few defects that could negatively impact battery performance.

Abstract: A power storage device separator includes a polyolefin based porous film laminated on at least one side with a particle-containing layer containing cellulose based resin, inorganic particles, and thermoplastic resin particles with a melting point of 100-140° C.

Abstract: A negative electrode plate of a nickel hydrogen storage battery includes a nonaqueous polymer binder and has an effective surface area per unit capacity of 70 cm2/Ah or more. The density of the first and second separators between positive and negative electrode plates ranges from 450 kg/m3 to 600 kg/m3. The nonwoven fabrics of the separators are formed by combining microfibers and compound fibers through melting portions of the compound fibers. The fibers have a virtually circular cross-section. The microfibers and the compound fibers have a diameter ranging from 1 ?m to less than 5 ?m and a diameter ranging from 5 ?m to 15 ?m, respectively. The proportion of the microfibers to whole fibers ranges from 10 percent by mass to 20 percent by mass. At least one of the nonwoven fabrics of the separators is subjected to sulfonation treatment.

Abstract: A negative electrode plate of a nickel hydrogen storage battery includes a nonaqueous polymer binder and has an effective surface area per unit capacity of 70 cm2/Ah or more. The density of the first and second separators between positive and negative electrode plates ranges from 450 kg/m3 to 600 kg/m3. The nonwoven fabrics of the separators are formed by combining microfibers and compound fibers through melting portions of the compound fibers. The fibers have a virtually circular cross-section. The microfibers and the compound fibers have a diameter ranging from 1 ?m to less than 5 ?m and a diameter ranging from 5 ?m to 15 ?m, respectively. The proportion of the microfibers to whole fibers ranges from 10 percent by mass to 20 percent by mass. At least one of the nonwoven fabrics of the separators is subjected to sulfonation treatment.