Abstract: A support body included in the solid electrolyte layer of the lithium ion secondary battery is constituted by a non-woven fabric having an air permeability in a range of 1 to 50 L/cm2/min, a thickness in a range of 5 to 30 ?m, and a density in a range of 0.15 to 0.45 g/cm3.

Abstract: A separator for aluminum electrolytic capacitors, the separator being formed of natural cellulose fibers and beaten regenerated cellulose fibers, and having excellent tear strength, short-circuit resistance and impedance characteristics. The separator for aluminum electrolytic capacitors is interposed between a positive electrode and a negative electrode of an aluminum electrolytic capacitor, and is formed of from 50% by mass to 90% by mass of natural cellulose fibers and from 50% by mass to 10% by mass of beaten regenerated cellulose fibers. The separator for aluminum electrolytic capacitors is configured to have a specific tear strength of from 20 to 100 mN·m2/g and a short-circuit rate of 10% or less during application of 500 V in separator dielectric breakdown testing.

Abstract: A separator for an aluminum electrolytic capacitor. The separator makes it possible to use inexpensive fibers and has excellent impedance characteristics and short-circuit resistance performance. When the separator for an aluminum electrolytic capacitor is interposed between a positive electrode and a negative electrode of an aluminum electrolytic capacitor and 500 V are applied during separator dielectric breakdown testing, the separator for an aluminum electrolytic capacitor has a short-circuit rate of no more than 10%.

Abstract: A resistance to short-circuiting of a separator to be used in an aluminum electrolytic capacitor having a conductive polymer is improved. A separator for an aluminum electrolytic capacitor, that is interposed between a pair of electrodes and is used in an aluminum electrolytic capacitor having a conductive polymer as a cathode material, is configured to include synthetic fibers and a binder and to have a bursting strength of 40-180 kPa and a burst index of 3.5-7.5 kPa/(g/m2).

Abstract: A separator for aluminum electrolytic capacitors, the separator being interposed between a pair of electrodes in an aluminum electrolytic capacitor that includes a conductive polymer as a cathode material, where: the separator is composed of fibrillated cellulose fibers and fibrillated synthetic fibers; and a tensile strength decrease rate as expressed by formula (1) with use of a tensile strength after 30-minute humidity control at 20° C. at 65% RH and a tensile strength after 20-minute heat treatment at 270° C. is from 10% to 90%: (X1?X2)/X1×100??Formula (1): X1: Tensile strength after 30-minute humidity control at 20° C. at 65% RH X2: Tensile strength after 20-minute heat treatment at 270° C.

Abstract: A heat-resistant separator for an electrochemical element in which the thickness of the separator is reduced while maintaining the balance between the short circuit resistance, resistance, electrolyte impregnation performance, and electrolyte retention performance of the separator. A separator for an electrochemical element includes beaten cellulose fibers, wherein the value obtained by dividing the average value for the distance between the center point of a cellulose stem fiber constituting part of the separator and the center point of another cellulose stem fiber nearest to said cellulose stem fiber by the thickness of the separator is 0.80 to 1.35.

Abstract: A thin separator for electrochemical elements, which has achieved chemical stability, while maintaining a good balance among short-circuit resistance, resistivity, electrolyte solution impregnability and electrolyte solution retainability of the separator. A separator for electrochemical elements, which is interposed between a pair of electrodes so as to separate the electrodes from each other, and which holds an electrolyte solution. This separator for electrochemical elements is composed of beaten cellulose fibers and thermoplastic synthetic fibers, and has a thickness of 5.0-30.0 ?m and a density of 0.50-0.75 g/cm3; and the thickness X (?m) and the air resistance Y (second/100 ml) of this separator for electrochemical elements satisfy formula 1: Y?0.01X2?0.6X+11.5.

Abstract: The purpose of the present invention is to provide a separator for an aluminum electrolytic capacitor and an aluminum electrolytic capacitor, with which it is possible to increase the uniformity of conductive polymers in solid electrolytic capacitors and hybrid electrolytic capacitors, and to achieve a further decrease in the ESR of the capacitor.

Abstract: A separator for alkaline batteries, which exhibits excellent strength, dimensional stability and chemical stability in an electrolyte solution, while having high shielding properties, high liquid holding properties and low resistance. A separator for alkaline batteries, which is used for the purpose of separating a positive electrode active material and a negative electrode active material from each other, and holding an electrolyte solution, and which is obtained by stacking and integrating a fiber layer A that has a density of 0.52-0.62 g/cm3 and a thickness of 25-35 ?m and a fiber layer B that has a density of 0.40-0.50 g/cm3 and a thickness of 25-35 ?m, so that the entirety of the separator has a density of 0.45-0.57 g/cm3 and a thickness of 50-70 ?m.

Abstract: A separator for an aluminum electrolytic capacitor. The separator makes it possible to use inexpensive fibers and has excellent impedance characteristics and short-circuit resistance performance. When the separator for an aluminum electrolytic capacitor is interposed between a positive electrode and a negative electrode of an aluminum electrolytic capacitor and 500 V are applied during separator dielectric breakdown testing, the separator for an aluminum electrolytic capacitor has a short-circuit rate of no more than 10%.

Abstract: A separator which is capable of reducing ESR and improving electrostatic capacity while maintaining high short-circuit resistance, a solid electrolytic capacitor using the separator, and a hybrid electrolytic capacitor. To achieve this, the present invention has, for example, the following configuration. This separator which is to be used in an aluminum electrolytic capacitor and which is interposed between a pair of electrodes of a capacitor is such that the separator contains synthetic fiber, for example, polyamide fiber and/or fibrillated polyamide fiber, the droplet elimination times for one surface and for the opposite surface are 10-350 seconds, the ratio of the droplet elimination times is 1.0-2.0, the airtightness is 10-350 sec./100 ml, and the average pore size is 0.1-15.0 ?m. Furthermore, the separator is characterized in that the synthetic fiber contains 20-80 mass % of fibrillated polyamide fiber and 20-80 mass % of fibrillated natural cellulose fiber.

Abstract: A non-aqueous electrolyte battery of the present invention includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, and the separator contains polyphenylenesulfide fibers, aramid fibers, and cellulose fibers at ratios of 50 to 85 mass %, 10 to 30 mass %, and 5 to 35 mass %, respectively. This makes it possible to provide a non-aqueous electrolyte battery with characteristics that are less likely to deteriorate under a high-temperature environment and in which few defects occur during assembly.

Abstract: A separator for an electrochemical element suitable extends the service life of an electrochemical element under high temperature conditions. This separator for an electrochemical element is disposed between a pair of electrodes and is for separating the two electrodes from each other and retaining an electrolytic solution, wherein the separator contains a cellulose-based fiber, and the limiting viscosity of the separator as measured by the measurement method specified in JIS P 8215 is in a range of 150-500 ml/g.

Abstract: Provided is a separator for an electrochemical element having exceptional strength and shielding performance, a small thickness, and low resistance. A separator for an electrochemical element interposed between a pair of electrodes and capable of holding an electrolytic solution containing an electrolyte, wherein the separator for an electrochemical element comprises a regenerated cellulose fiber having an average fiber length of 0.25-0.80 mm and an average fiber width of 3-35 ?m, and in which the value calculated by dividing the average fiber length by the average fiber width is 15-70.

Abstract: A separator for aluminum electrolytic capacitors interposed between paired electrodes contains a synthetic resin fiber, and has porosity within a range of 65 to 85%, average pore size within a range of 0.5 to 25.0 ?m, and Clark stiffness within a range of 1 to 10 cm3/100. Moreover, the separator is nonwovens including this structure. Furthermore, use of the separator in solid electrolytic capacitors and hybrid electrolytic capacitors allows reduction in initial ESR and short circuit defect rate, and improvement in reliability of being able to endure use over a long period of time in a severe environment. Yet further, the separator may be used in an aluminum electrolytic capacitor using a conductive polymer as a cathode material.

Abstract: Provided is a separator for aluminum electrolytic capacitors, in which the separator has both good short circuit resistance and good impedance characteristics. A separator for aluminum electrolytic capacitors is formed, in which the separator is interposed between a positive electrode and a negative electrode of an aluminum electrolytic capacitor, and the separator includes at least one layer that is formed from plant fibers and has a dielectric breakdown strength of greater than or equal to 20 kV/mm.

Abstract: A separator for an electrochemical element suitable extends the service life of an electrochemical element under high temperature conditions. This separator for an electrochemical element is disposed between a pair of electrodes and is for separating the two electrodes from each other and retaining an electrolytic solution, wherein the separator contains a cellulose-based fiber, and the limiting viscosity of the separator as measured by the measurement method specified in JIS P 8215 is in a range of 150-500 ml/g.

Abstract: A separator for an electrochemical element interposed between a pair of electrodes, capable of holding an organic electrolytic solution contains an electrolyte. The separator is a wet-laid nonwoven fabric containing 10-50 mass % of thermoplastic synthetic fibers and 50-90 mass % of beaten regenerated cellulose fibers having a mean fiber length of 0.2-2.0 mm, the separator has a thickness of 10-70 ?m and a density of 0.25-0.90 g/cm3, including two parts obtained by bisecting a cross-section of the separator in a thickness direction. Two A-parts with a small number of the thermoplastic synthetic fibers and B-part with a large number of the thermoplastic synthetic fibers, and the A and B parts are formed into a single layer in an integrated manner; a value obtained by dividing the number of thermoplastic synthetic fibers in the A part by the number of the thermoplastic synthetic fibers in the B part is 0.85 or less.

Abstract: The present invention provides a separator for alkaline batteries and an alkaline battery improving reliability of prevention in internal short-circuits, and having good liquid retention and shielding property. To achieve this, the separator for alkaline batteries is made from a wet nonwoven fabric which contains at least alkali-resistant cellulose fibers and alkali-resistant synthetic fibers bound using a binder component; wherein an average pore diameter of the wet nonwoven fabric is 1 to 10 ?m. Moreover, the separator for alkaline batteries uses the wet nonwoven fabric having a maximum pore diameter of 20 to 60 ?m, a liquid retention rate of 400 to 700% during immersion in a 40% by mass KOH solution, and a swelling ratio of 30 to 45% during immersion in a 40% by mass KOH solution.

Abstract: A thin separator for electrochemical elements, which has achieved chemical stability, while maintaining a good balance among short-circuit resistance, resistivity, electrolyte solution impregnatability and electrolyte solution retainability of the separator. A separator for electrochemical elements, which is interposed between a pair of electrodes so as to separate the electrodes from each other, and which holds an electrolyte solution. This separator for electrochemical elements is composed of beaten cellulose fibers and thermoplastic synthetic fibers, and has a thickness of 5.0-30.0 ?m and a density of 0.50-0.75 g/cm3; and the thickness X (?m) and the air resistance Y (second/100 ml) of this separator for electrochemical elements satisfy formula 1: Y?0.01X2?0.6X+11.5.