Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Takuma Asari

Shigeo Hayashi

Yasuhiro Hashimoto

Hironori Kumagai

Toshiya Yokogawa

Takashi Okada

Takahiro Kawashima

Naoki Yoshikawa

Yasuyuki Ito

Nao Matsumura

Kiyohiro Isii

Daniel Hogan

Chiho Nobumori

A method for manufacturing an electrochemical device includes the following steps: a step of preparing a positive electrode, the positive electrode including a first current collector and a positive electrode layer containing a conductive polymer; a step of preparing a negative electrode, the negative electrode including a second current collector and a negative electrode layer; and a step of sealing the positive electrode, the negative electrode, and an electrolytic solution in an exterior body. The step of preparing the positive electrode includes a step of holding the positive electrode in depressurized atmosphere and then introducing gas containing COas a primary component into the depressurized atmosphere.

Method for manufacturing electrochemical device, and electrochemical device

The present invention provides a highly reliable energy storage device capable of preventing a reaction current from flowing in a carbon nanotube electrode by ionizing a catalyst metal or a substrate metal to cause the metal to flow out to an electrolytic solution. An energy storage device of the present invention includes: at least a pair of electrode bodies that are a cathode and an anode; and an electrolytic solution. At least one of the electrode bodies is configured such that a layer of carbon nanotubes is formed on an electric conductor. A coupling region where one ends of the carbon nanotubes are coupled to and electrically connected to the electric conductor and a non-coupling region where ends of the carbon nanotubes are not coupled to the electric conductor are formed on a surface of the electric conductor. The carbon nanotubes having one ends connected to the coupling region are toppled to cover a surface of the non-coupling region.

Energy storage device, method for manufacturing the same, and apparatus including the same

Disclosed herein is an electrode for energy devices such as electric double layer capacitors, which includes conductive fibers made of carbon, such as carbon nanotubes, as an electrode active material and has a high capacitance. The electrode for energy devices includes a current collector and a plurality of conductive fibers (e.g., carbon nanotubes) provided to stand on a surface of the current collector so that their one ends are electrically connected to the surface of the current collector, wherein the conductive fibers are made of carbon and have carboxyl group-containing functional groups or oxo group-containing functional groups and hydroxyl group-containing functional groups attached thereto. The conductive fibers preferably carry a quinone group-containing compound.

Electrode, method for producing electrode, and energy device, electronic device, and transportation device including electrode

The present invention provides a nanostructure on an upper surface of which a small-diameter carbon nanotube (CNT) is formed and which improves an adhesive strength between a substrate and the CNT while controlling an orientation of the CNT, and a method for manufacturing the nanostructure. The nanostructure includes a substrate, a porous layerformed on the substrateto have a fine pore, a fine pore diameter control layerformed on the porous layer, and a carbon nanotubeformed to extend from the fine pore defined by the fine pore diameter control layer, and one end of the carbon nanotube is fixed by the fine pore diameter control layer. It is preferable that the substrateand the fine pore diameter control layerbe electrically conductive. It is preferable that the porous layerbe an anode oxide film. It is preferable that a melting point of the fine pore diameter control layerbe 600&#xb0; C. or higher.

Nanostructure and method for manufacturing the same

Provided are a substrate on which carbon nanotubes each having one end connected to the substrate can be formed at a high synthetic rate and from which the carbon nanotubes are less likely to be peeled off. The substrate is a substrate for forming the carbon nanotubes and includes a buffer layerformed on at least one of surfaces of a substrate main bodyand containing aluminum atoms and fluorine atoms. The carbon nanotube complex includes the substrate and a plurality of carbon nanotubeseach having one end connected to a surface of the buffer layer

Carbon nanotube forming substrate, carbon nanotube complex, energy device, method for manufacturing energy device, and apparatus including energy device

An electric double layer capacitoris configured such that a positive electrode, a separator, and a negative electrodestacked in this order are contained in a container, and a portion between the positive electrodeand the negative electrodeis filled with an electrolytic solution. A polar plate of one or each of the positive electrodeand the negative electrodeincludes a current collectorand a plurality of electrically-conductive fine fibersformed and standing on a surface of the current collector such that one end of each of the fine fibers is electrically connected to the surface of the current collector. A surface of the polar plate is covered with the separator, the surface corresponding to the surface of the current collector. The polar plate and the separatorare pressure bonded to be integrated with each other. In the electric double layer capacitor using the electrically-conductive fine fiber, such as a carbon nanotube, as an active material, energy density can be increased by densely compressing the active material.

Electric double layer capacitor and method for manufacturing the same

The present invention provides an energy device including a carbon nanotube electrode which prevents a carbon nanotube from peeling from an electric conductor. The energy device includes rolled electrode bodies, wherein at least one of the electrode bodies is formed such that a carbon nanotube layer is formed on the electric conductor, and concave regions are formed in a stripe shape on the carbon nanotube layer so as to extend in a direction parallel to a roll axis.

Energy device, method for manufacturing the same, and apparatus including the same

The present invention provides cells which are capable of transmitting both optical information and electrical signals when connected with each other, and a packaging system in which these cells are connected. A first connector and a second connector are formed on each cell. These two connectors are configured complementary to each other. When two cells are pressed against each other with the first connector of one of the cells facing the second connector of the other, electrical connectors engage with each other, whereby the cells are connected electrically and mechanically. A first optical device and a second optical device are also disposed in complementary positions. When the cells are connected electrically and mechanically, the tip of the first optical device and the tip of the second optical device are brought into contact with each other, allowing an optical signal to be transmitted.

Growing community of inventors

Hyogo, Japan

Takuma Asari