Abstract:
Anisotropic graphite and an anisotropic graphite composite are provided, each having excellent heat transmission performance and excellent long-term reliability as a heat transmitting element, and a production method for the anisotropic graphite composite. A face of anisotropic graphite which face is perpendicular to crystal orientation planes of graphite layers of the anisotropic graphite may be subjected to surface treatment so as to obtain anisotropic graphite having a specific surface roughness. An anisotropic graphite composite may include anisotropic graphite having an interface that has a specific interface roughness; a titanium-containing metal layer; and an inorganic material layer.
Abstract:
Provided are (i) a heat transport structure which is excellent in heat transfer efficiency and (ii) a method of producing such a heat transport structure. The heat transport structure in accordance with an embodiment of the present invention includes: a first thermally conductive material in which through holes are formed; and second thermally conductive materials which are fitted in the respective through holes in a perpendicular direction which is a direction perpendicular to a surface direction, a thermal conductivity which the first thermally conductive material exhibits in the surface direction being higher than a thermal conductivity which the first thermally conductive material exhibits in the perpendicular direction, each of the second thermally conductive materials being held by an inner surface of a corresponding one of the through holes and having fitting strength of not less than 0.5 N/mm per unit circumference of the corresponding one of the through holes.
Abstract:
Anisotropic graphite and an anisotropic graphite composite are provided, each having excellent heat transmission performance and excellent long-term reliability as a heat transmitting element, and a production method for the anisotropic graphite composite. A face of anisotropic graphite which face is perpendicular to crystal orientation planes of graphite layers of the anisotropic graphite may be subjected to surface treatment so as to obtain anisotropic graphite having a specific surface roughness. An anisotropic graphite composite may include anisotropic graphite having an interface that has a specific interface roughness; a titanium-containing metal layer; and an inorganic material layer.
Abstract:
A current collector for a battery includes: a layer (1) formed from an electrically conductive material and at least one of (a) a polymer compound having an alicyclic structure, (b) a saturated hydrocarbon polymer compound having a hydroxyl group, (c) a phenoxy resin and an epoxy resin, and (d) an amine having an amine equivalent of 120 g/eq or less and an epoxy resin; a layer (2) which is formed on at least one surface of the layer (1); and a layer (3) formed from an electrically conductive material. The current collector for a battery has stability to an equilibrium potential environment in a negative electrode, a low electric resistance, a blocking property to solvent in electrolytic solution, and a blocking property to a component in an electrolyte. In addition, the current collector for a battery has a high capacity retention rate, and battery durability is improved.
Abstract:
In order to provide a thermal transport structure excellent in bendability, heat dissipation property, and lightweight property and also a thermal transport structure having a high reliability against vibrations and an excellent heat transport performance, used is a thermal transport structure (5, 201) including stacked graphite sheets (1, 213). This thermal transport structure (5, 201) includes a fixing portion (10, 202, 301) in which the stacked graphite sheets (1, 213) are fixed to each other; and a thermally conductive portion (11, 203) in which the stacked graphite sheets (1, 213) are not fixed to each other.
Abstract:
A film includes a film body including graphite, and at least one fragment including graphite and formed on one or more surfaces of the film body. The film has a water contact angle of 50 degrees or greater and a glossiness of 20 or lower.
Abstract:
Provided are (i) a heat transport structure which is excellent in heat transfer efficiency and (ii) a method of producing such a heat transport structure. The heat transport structure in accordance with an embodiment of the present invention includes: a first thermally conductive material in which through holes are formed; and second thermally conductive materials which are fitted in the respective through holes in a perpendicular direction which is a direction perpendicular to a surface direction, a thermal conductivity which the first thermally conductive material exhibits in the surface direction being higher than a thermal conductivity which the first thermally conductive material exhibits in the perpendicular direction, each of the second thermally conductive materials being held by an inner surface of a corresponding one of the through holes and having fitting strength of not less than 0.5 N/mm per unit circumference of the corresponding one of the through holes.
Abstract:
A film includes a film body including graphite, and at least one fragment including graphite and formed on one or more surfaces of the film body. The film has a water contact angle of 50 degrees or greater and a glossiness of 20 or lower.
Abstract:
A current collector for a battery includes: a layer (1) formed from an electrically conductive material and at least one of (a) a polymer compound having an alicyclic structure, (b) a saturated hydrocarbon polymer compound having a hydroxyl group, (c) a phenoxy resin and an epoxy resin, and (d) an amine having an amine equivalent of 120 g/eq or less and an epoxy resin; a layer (2) which is formed on at least one surface of the layer (1); and a layer (3) formed from an electrically conductive material. The current collector for a battery has stability to an equilibrium potential environment in a negative electrode, a low electric resistance, a blocking property to solvent in electrolytic solution, and a blocking property to a component in an electrolyte. In addition, the current collector for a battery has a high capacity retention rate, and battery durability is improved.
Abstract:
A collector for bipolar lithium ion secondary batteries including an electroconductive polyimide layer including a conductivity-imparting agent dispersed in a polyimide resin that is prepared by imidizing a polyamic acid that is obtained by reacting at least one tetracarboxylic dianhydride component of biphenyltetracarboxylic dianhydrides, 3,3′,4,4′-benzophenonetetracarboxylic dianhydride, pyromellitic dianhydride, and [isopropylidenebis(p-phenyleneoxy)]diphthalic dianhydrides with at least one diamine component of oxydianilines, phenylenediamines, and 2,2-bis[4-(4-aminophenoxy)phenyl]propane has excellent solvent barrier properties to an electrolytic solution, and can be used to give a highly reliable bipolar lithium ion secondary battery.