摘要:
To provide a heat insulation sheet for a battery pack that has a good shape retention property and can maintain an excellent heat insulation property even when vibration or pressure is applied, and a battery pack in which a heat insulation sheet for a battery pack is interposed between battery cells. A heat insulation sheet (10) of the present invention is a heat insulation sheet for a battery pack, the heat insulation sheet being interposed between battery cells in a battery pack in which a plurality of battery cells is connected in series or in parallel. The heat insulation sheet (10) includes: a first heat insulation material (21) containing a silica nanoparticle; and a second heat insulation material (22) containing a plate-shaped particle containing a silica component and having a curved surface.
摘要:
A heat transfer suppression sheet for a battery pack, the heat transfer suppression sheet being used in a battery pack in which battery cells are connected in series or in parallel, and being interposed between the battery cells, the heat transfer suppression sheet containing a heat-insulating material containing at least one of inorganic particles or inorganic fibers, and a covering material covering at least a part of the heat-insulating material, in which a gap is formed between the heat-insulating material and the covering material.
摘要:
Provided is a heat insulation sheet for battery pack that can achieve uniform heat insulation property and heat dissipation property, and can insulate heat between adjacent battery cells and quickly dissipate heat generated by the battery cells when thermal runaway occurs in the battery cells, and a battery pack in which a heat insulation sheet for battery pack is interposed between battery cells. A heat insulation sheet (10) for battery pack in which battery cells are connected in series or in parallel, the heat insulation sheet being interposed between the battery cells and containing: a first particle (21) that is uniformly dispersed and contains a silica nanoparticle; and an inorganic fiber (23) that is uniformly dispersed and oriented in one direction which is parallel to a main surface of the heat insulation sheet (10).
摘要:
A holding sealing material includes a laminate of a plurality of mats and a film. The plurality of mats each include inorganic fibers and have a rectangular shape in a plan view. The plurality of mats are arranged in an order of longitudinal length from a shortest longitudinal length to a longest longitudinal length. The film is provided around a longest mat having the longest longitudinal length among the plurality of mats. The longest mat has a first main surface and a second main surface which is on a side opposite to the first main surface and which is in contact with a second longest mat. The film is adhered to the first main surface and longitudinal side surfaces of the longest mat and is adhered to the second main surface to allow the second main surface to be partly exposed.
摘要:
A heat transfer suppression sheet for a battery pack, the heat transfer suppression sheet being used in a battery pack in which battery cells are connected in series or in parallel and being interposed between the battery cells, the heat transfer suppression sheet containing: a heat-insulating material containing at least one of inorganic particles or inorganic fibers; and a covering material covering at least a part of the heat-insulating material, in which a sealed gap is formed between the heat-insulating material and the covering material, and the covering material is configured such that a communication opening that allows the gap to communicate with the outside of the covering material is formed at a temperature of 60° C. or more.
摘要:
Provided are a heat transfer suppression sheet having an excellent heat transfer prevention effect and excellent retainability of inorganic particles and shape retainability at a high temperature, and a battery pack in which the heat transfer suppression sheet is interposed between battery cells. The heat transfer suppression sheet (10) includes inorganic particles (20), first inorganic fibers (30), and second inorganic fibers (31). An average fiber diameter of the first inorganic fibers (30) is larger than an average fiber diameter of the second inorganic fibers (31). The first inorganic fibers (30) have a linear shape or a needle shape, and the second inorganic fibers (31) have a dendritic shape or a crimped shape.
摘要:
A holding seal material made of a laminated mat configured by laminating a plurality of mats containing an inorganic fiber and having a rectangular planar shape so that longitudinal-direction lengths of the respective mats sequentially increase as the mats are laminated, in which the film is attached to a principal surface of the mat configuring the laminated mat and having a longest longitudinal-direction length on an opposite side to a side on which the mat having the longest longitudinal-direction length is in contact with other mats and longitudinal-direction side surfaces of the mat having the longest longitudinal-direction length, and the film is attached to a principal surface of the mat having the longest longitudinal-direction length on the side on which the mat having the longest longitudinal-direction length is in contact with other mats in a state in which a part of the principal surface is exposed.
摘要:
A heat transfer suppression sheet for a battery pack, the heat transfer suppression sheet being used in a battery pack in which battery cells are connected in series or in parallel and being interposed between the battery cells, the heat transfer suppression sheet containing: a heat-insulating material containing at least one of inorganic particles or inorganic fibers; and a covering material covering at least a part of the heat-insulating material, in which a gap is formed between the heat-insulating material and the covering material, and the gap communicates with the outside of the heat-insulating material and the covering material.
摘要:
Provided are a heat transfer suppression sheet having an excellent heat transfer prevention effect and excellent retainability of inorganic particles and shape retainability at a high temperature, and a battery pack in which the heat transfer suppression sheet is interposed between battery cells. The heat transfer suppression sheet (10) includes inorganic particles (20), first inorganic fibers (30), and second inorganic fibers (31). The first inorganic fibers (30) are amorphous fibers. The second inorganic fibers (31) contain at least one kind selected from amorphous fibers having a glass transition point higher than that of the first inorganic fibers (30) and crystalline fibers.
摘要:
A heat-insulating sheet for a battery pack is interposed between battery cells of the battery pack in which the battery cells are connected in series or in parallel. The heat-insulating sheet for the battery pack contains a first particle made from a silica nanoparticle and a second particle made from a metal oxide. A content of the first particle is 60 mass % or more and 95 mass % or less relative to a total mass of the first particle and the second particle.