Abstract: The safety of an assembled battery is improved. An insulating sheet 10 is to be interposed between battery cells 20 having planar surfaces 34 facing each other and is formed of a resin composition containing an inorganic filler. An assembled battery 50 includes a plurality of battery cells 20 having planar surfaces 34 and the insulating sheet 10. The insulating sheet 10 is interposed in at least one facing section 36 of the plurality of battery cells 20 whose planar surfaces 34 are arranged to face each other.

Abstract: The safety of an assembled battery is improved. An insulating sheet 10 is to be interposed between battery cells 20 having planar surfaces 34 facing each other and is formed of a resin composition containing an inorganic filler. An assembled battery 50 includes a plurality of battery cells 20 having planar surfaces 34 and the insulating sheet 10. The insulating sheet 10 is interposed in at least one facing section 36 of the plurality of battery cells 20 whose planar surfaces 34 are arranged to face each other.

Abstract: A high-quality battery pack is efficiently produced without using any potting material. A battery cover sheet 10 is a sheet member formed of a resin composition containing an inorganic filler, and has flexibility enough to cover, along the shape of the outer surface of a battery (such as a cylindrical lithium-ion battery 20A), at least partially the outer surface. For example, of the outer surface of the cylindrical lithium-ion battery 20A except for both end surfaces, the outer peripheral surface is covered with the battery cover sheet 10 and a seam 10a is fixed with a fixing member such as an adhesive tape 11, to thereby form a sheet-covered battery 30A. In this case, the battery cover sheet 10 forms a battery holder.

Abstract: Provided are a battery holder that enables efficient production of a high-quality battery pack, and a battery pack using the battery holder. A battery holder 10 at least includes a tubular body having a through-space (battery-housing portion 10a) for housing a battery such as a lithium-ion battery 20. This tubular body includes a fibrous substrate 11 and a resin composition 12 containing an inorganic filler.

Abstract: Provided are a battery holder that enables efficient production of a battery pack of excellent quality, and a battery pack using the battery holder. A battery holder 10 includes at least a tubular body having a through-space (battery storage portion 10a) for storing a battery, such as a lithium-ion battery 20, inside. This tubular body is formed of a resin composition containing an inorganic filler.

Abstract: Polyurethane resin compositions are used to seal objects such as electrical and electronic components in order to provide protection from condensation and contamination. Such polyurethane resin compositions are often used in high-temperature environments. Thus, a polyurethane resin composition having high heat resistance is provided. The polyurethane resin composition is obtained by reacting a hydroxyl-group-containing compound (A) with an isocyanate-group-containing compound (B) and contains an antioxidant (C) having an alkylthio group.