Kaneka Corporation

Nissan Motor Company Limited

Satoshi Oku

Masahiro Kojima

Yusuke Kato

Takashi Kikuchi

Makoto Kutsumizu

Takashi Ito

Yasuyuki Tanaka

Yasushi Nishikawa

Yoshio Shimoida

Norihisa Waki

Shiho Inoue

Akiko Waki

Yuji Muroya

Masato Kusakabe

Shigeo Ibuka

Ryutaro Mukai

Hiroyuki Ogino

Masami Yanagida

Gentaro Kano

Kazuki Miyatake

Keisuke Wakabayashi

Kensuke Murashima

Kohei Ogawa

Seiji Ishimoto

Tomohisa Matsuno

Katsuhiro Chikuba

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.

Anisotropic graphite, anisotropic graphite composite, and method for producing same

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 () including stacked graphite sheets (). This thermal transport structure () includes a fixing portion () in which the stacked graphite sheets () are fixed to each other; and a thermally conductive portion () in which the stacked graphite sheets () are not fixed to each other.

Heat transport structure and manufacturing method thereof

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.

Heat transfer structure and manufacturing method therefore

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.

Graphite film, laminate film, method for producing same, and electrode material

A current collector for a battery includes: a layer () 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 () which is formed on at least one surface of the layer (); and a layer () 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.

Current collector for battery and battery using same

A conductive film includes a layer 1 formed by a conductive material 1 that includes a polymer material 1 containing any of (1) an amine and an epoxy resin (where the epoxy resin and the amine are mixed in a ratio of 1.0 or more in terms of the ratio of the number of active hydrogen atoms in the amine with respect to the number of functional groups in the epoxy resin), (2) a phenoxy resin and an epoxy resin, (3) a saturated hydrocarbon polymer having a hydroxyl group, and (4) a curable resin and an elastomer and conductive particles 1. The conductive film has excellent stability in an equilibrium potential environment in a negative electrode and low electric resistance per unit area in the thickness direction. A multilayer conductive film including the conductive film achieves excellent interlayer adhesion, and using them as a current collector enables the production of a battery satisfying both weight reduction and durability.

Conductive film, current collector using same, battery and bipolar battery

A multilayer conductive film includes a layerincluding a conductive material containing a polymer materialhaving an alicyclic structure and conductive particlesand a layerincluding a material having durability against positive electrode potential. The multilayer conductive film has stability in an equilibrium potential environment in a negative electrode and stability in an equilibrium potential environment in a positive electrode, has low electric resistance per unit area in the thickness direction, and has excellent barrier properties for a solvent of an electrolytic solution. A battery including a current collector employing the multilayer conductive film can achieve both weight reduction and durability.

Multilayer conductive film, current collector using same, battery and bipolar battery

A collector for bipolar lithium ion secondary batteries comprises a first conductive layer that is obtained by adding a conductive filler to a base that contains an imide group-containing resin, and a second conductive layer that has a function of blocking lithium ions. The second conductive layer comprises a blocking resin layer that is obtained by adding a conductive filler to a base that contains a resin which contains no imide group, and a metal layer. This collector for bipolar lithium ion secondary batteries is used in such a manner that the first conductive layer is on the positive electrode active material layer side with respect to the second conductive layer.

Collector for bipolar lithium ion secondary batteries

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Settsu, Japan

Satoshi Oku