Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

The Doshisha

Gang Xie

Takeshi Kamizono

Harumi Hashiguchi

Tomoya Tagami

Takashi Nakamura

Hiroyuki Kishi

Tomio Yasuda

Shinji Nezu

Michio Asukabe

Minoru Inaba

Seiichi Sumiya

Yoshito Endo

Naoki Ito

Yosuke Oyabe

Atsushi Tomita

Yosuke Koike

Eiji Nakashima

Atsushi Kurita

Saeki Yamamuro

Naoyuki Aratani

Takashi Nishikawa

Kotaro Mizuma

Norio Nakaya

Tsukasa Yamaguchi

Michihiro Asai

Kazuhiko Ida

Mitsuru Nishikawa

A method of manufacturing a carbon nanotube composite includes: a laminate forming step of forming, on a conductive base material made of a first metal having conductivity, a buffer layer made of a second metal capable of mutual diffusion with the first metal, and forming, on the buffer layer, a catalyst layer made of seed catalyst particles which catalyze formation of carbon nanotubes; a buffer layer diffusion step of performing heat treatment on the laminate; and a carbon nanotube layer forming step of forming the carbon nanotubes on the catalyst layer of the laminate by a chemical vapor deposition method, wherein the heat treatment is performed so as to form a solid phase diffusion region where the first metal and the second metal are solid-phase diffused from a surface of the conductive base material to a predetermined depth selected from depths of 850 nm or more.

Method of manufacturing carbon nanotube composite and laminate

A nonaqueous liquid electrolyte for an energy storage device that utilizes at least one of an oxidation reaction and a reduction reaction of magnesium, the nonaqueous liquid electrolyte includes an ether solvent, magnesium halide serving as an electrolyte, and aluminum halide serving as an additive, the magnesium halide and the aluminum halide being dissolved in the ether solvent.

Nonaqueous liquid electrolyte

The present invention provides an aligned carbon nanotube assembly constituted of carbon nanotubes each having a defective pore on its side surface, a method of manufacturing the aligned carbon nanotube assembly, a carbon-based electrode, and a power storage device. The aligned carbon nanotube assembly is formed by aggregating a large number of carbon nanotubes aligned in parallel along the same direction and having parallel orientation. In such a state that the aligned carbon nanotube assembly remains grown, the carbon nanotube constituting the aligned carbon nanotube assembly has a defective pore on its side surface. In a raman spectrum of the aligned carbon nanotube assembly in a Raman spectrometric method, when intensity of scattered light in D-band is represented by Iand intensity of scattered light in G-band is represented by I, an I/Iratio is not less than 0.80.

Aligned carbon nanotube assembly, carbon-based electrode, power storage device, and method of manufacturing aligned carbon nanotube assembly

A method of manufacturing a ferrous oxide nanoparticle includes a water removing step raising temperature of a solution containing an iron oxide, an organic acid dissolving the iron oxide, and a first solvent to a first temperature and removing water in the solution, a second temperature maintaining step raising the first temperature to a second temperature and maintaining the second temperature, and a particle extracting step extracting the ferrous oxide nanoparticle from the solution after the second temperature maintaining step.

Method of manufacturing ferrous oxide nanoparticle, method of forming carbon nanotube, and ferrous oxide nanoparticle

An opening and closing apparatus includes: a drive unit provided in an opening and closing body which is openably and closeably attached to a main body, and opening and closing the opening and closing body with respect to the main body by driving the opening and closing body using electric power; a secondary energy storage device provided in the opening and closing body and electrically connected to the drive unit in such a manner that the secondary energy storage device can be inductively charged and can supply electric power to the drive unit; and an electric power receiving coil provided in the opening and closing body so as to be capable of facing an electric power transmitting coil which is provided on the main body, and is electrically connected to a primary energy storage device installed on the main body, and electrically connected to the secondary energy storage device.

Opening and closing apparatus

An electrochemical device includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution, wherein the negative electrode contains a magnesium element, and wherein the nonaqueous electrolytic solution is one obtained after dipping metallic lithium for a predetermined time period.

Electrochemical device using magnesium element-containing negative electrode

A producing method includes a preparing step of preparing a chemical compound having at least one of elements of alkali metals and alkali earth metals along with platinum, and a reducing step of reducing the prepared chemical compound with a reducing agent to form platinum nanoparticles.

Method for producing platinum nanoparticles

A membrane electrode assembly includes an ion conducting membrane; an anode catalyst layer arranged on one side of the ion conducting membrane; a cathode catalyst layer arranged on the other side of the ion conducting membrane; an anode diffusion layer arranged on an outer side of the anode catalyst layer; and a cathode diffusion layer arranged on an outer side of the cathode catalyst layer. Only in the anode catalyst layer, the density of a first catalyst layer portion located close to the anode diffusion layer is smaller than the density of a second catalyst layer portion located close to the ion conducting membrane.

Membrane electrode assembly for fuel cell, fuel cell, and fuel cell system

By using a fuel cell having a membrane electrode assembly having and electrolyte membraneformed by a polymer electrolyte membrane, and an anodeand a cathodecarrying a catalytic metal and sandwiching electrolyte membrane. The anodeand the cathodeare in electrical connection, and an activation treatment is carried out for opening an active site of catalytic metal of the cathode. This provides an activation method of a polymer electrolyte fuel cell which is advantageous to activation and raises cell voltage.

Method for activating solid polymer fuel cell

A fuel cell includes a proton-conducting solid electrolyte, a fuel electrode provided on one side of the solid electrolyte, and an oxidant electrode provided on the other side of the solid electrolyte. The solid electrolyte includes at least one internal electrode therein. The fuel cell further includes a polarizing means for electrochemically polarizing the at least one internal electrode for oxidizing, or reducing, a fuel, or an oxidant, passing through an inside of the solid electrolyte.

Fuel cell

In a method for operating a fuel cell including an electrolyte membrane sandwiched by a fuel electrode and an oxidizing agent electrode, the method includes a hydrogen feedback process either before starting operation of the fuel cell or after stopping operation of the fuel cell. The hydrogen feedback process includes the processes of a process for electrically connecting a positive electrode of an external electric power source to the oxidizing agent electrode of the fuel cell, a process for electrically connecting a negative electrode of the external electric power source to the fuel electrode of the fuel cell, a process for oxidizing hydrogen remaining in the oxidizing agent electrode to generate protons, the hydrogen contained in the fuel, and a process for reducing the protons, transferred to the fuel electrode from the oxidizing agent electrode through the electrolyte membrane, into hydrogen.

Method for operating fuel cell

A method for manufacturing a membrane electrode assembly comprises a process for preparing a electrolyte membrane and two gas diffusion layers, and a bonding process for forming the membrane electrode assembly by pressing a layered unit in which the electrolyte membrane is sandwiched between each of the two gas diffusion layers in such a way that provided catalyst layers locate in the interfaces between the electrolyte membrane and the two gas diffusion layers, wherein the bonding process is undertaken in a condition in which the surfaces of the electrolyte membrane are temporarily liquefied or softened.

Method for manufacturing membrane electrode assembly

In a solid polymer electrolyte membrane with an ion exchangeability employed in a solid polymer electrolyte fuel cell, an anion group is partially combined with the solid polymer membrane.

Solid polymer electrolyte membrane of a fuel cell and method for producing the same

The fuel cell with excellent power generation performance and high reliability and a manufacturing method of a fuel cell electrode by which the flooding phenomenon is hard to be caused at a contact portion with a separator because of small contact resistance with the separator. According to the manufacturing method of the fuel cell electrode, a first application process for applying an electrically conductive water repellent material including electrically conductive particles and water repellent particles on one side of a gas diffusion substrate having the gas permeability, a first sintering process for sintering the applied electrically conductive water repellent material, and a catalyst support process for supporting a catalyst on the other side of the gas diffusion substrate are provided. The fuel cell manufacture in the foregoing manner is provided with a joint body of an electrolyte, an oxidant electrode, and a fuel electrode in which the electrolyte is sandwiched by the oxidant electrode and the fuel electrode. At least the oxidant electrode out of the oxidant electrode and the fuel electrode is the fuel cell electrode.

Manufacturing method of fuel cell electrode and fuel cell using thereof

In a fuel cell, the fuel cell electrode includes an electrode structure having electrical conductivity and gas permeability and a catalyst carried on the electrode structure in direct fashion. The fuel cell includes a high molecular weight electrolyte membrane held between a pair of the foregoing electrode structures to constitute an MEA and a pair of separators between which the MEA is sandwiched, such that at adjusting surface is formed between the MEA and each of the separators a gas passage. Thus, the fuel cell has less internal resistance and an excellent gas/water dispersion property.

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Anjo, Japan

Gang Xie