Kabushiki Kaisha Toshiba

Hiroyasu Sumino

Akihiro Horiguchi

Fumio Ueno

Mitsuo Kasori

Satoshi Mikoshiba

Maki Yonetsu

Shuji Hayase

Shinji Murai

Masahiro Takashita

Taishi Fukazawa

Masato Akita

Kazuo Kimura

Katsuyoshi Oh-Ishi

Jun Monma

Tsuyoshi Kobayashi

Masatoshi Sakurai

Katsuyuki Naito

Yoshihiko Nakano

Yoshihiro Akasaka

Wu Mei

Hirohisa Miyamoto

Hiroyuki Hasebe

Norihiro Tomimatsu

Nobuo Shibuya

Kazuhiro Yasuda

Ryosuke Yagi

Hirotaka Sakai

Itsuko Mizutani

A direct methanol fuel cell includes a cathode catalyst layer; an electrolyte membrane; an anode catalyst layer; a first fuel control layer that is water-repellent and conductive and that has pores; a second fuel control layer that is water-repellent and conductive and that has larger pores than the those of the first fuel control layer; a third fuel control layer that is water-repellent and conductive and that has smaller porous than those of the first fuel control layer and those of the second fuel control layer; and an anode GDL layer that is water-repellent and conductive, wherein the membrane and the layers above are arranged in the above order.

Direct methanol fuel cell

The present invention provides a dye sensitized solar cell comprising an n-type semiconductor electrode containing a dye, an opposed electrode, and a gel electrolyte arranged between the n-type semiconductor and the opposed electrode and containing a gelling agent and an electrolyte that contains iodine, wherein the gelling agent contains a compound including an N-containing group and at least one atomic group selected from a group consisting of a sulfonic group and a carboxylic group.

Dye sensitized solar cell and method for manufacturing dye sensitized solar cell

The present invention provides a catalyst having high activity and excellent stability, a process for preparation of the catalyst, a membrane electrode assembly, and a fuel cell. The catalyst of the present invention comprises an electronically conductive support and catalyst fine particles. The catalyst fine particles are supported on the support and are represented by the formula (1): PtRuGeT(1). In the formula, u, x, y and z mean 30 to 60 atm %, 20 to 50 atm %, 0.5 to 20 atm % and 0.5 to 40 atm %, respectively. When the element represented by T is Al, Si, Ni, W, Mo, V or C, the content of the T-element's atoms connected with oxygen bonds is not more than four times as large as that of the T-element's atoms connected with metal bonds on the basis of X-ray photoelectron spectrum (XPS) analysis. When the T-element is Ti, Hf, Sn, Ta, Zr or Nb, the content of the T-element's atoms connected with metal bonds is not more than twice as large as that of the T-element's atoms connected with oxygen bonds on the basis of XPS analysis.

Fuel cell catalyst, process for preparation of the same, and membrane electrode assembly and fuel cell employing the catalyst

The invention provides a fuel cartridge for supplying methanol aqueous solution to a direct methanol fuel cell system, comprising a memory which stores at least a concentration of the methanol aqueous solution.

Direct methanol fuel cell system, fuel cartridge, and memory for fuel cartridge

Disclosed is a fuel cell comprising a fuel cell body (stacked body) including a unit cell having an electromotive section in which an electrolyte membrane is sandwiched between a fuel electrode and an oxidant electrode, and a liquid fuel tank for storing a liquid fuel that is to be supplied to the fuel cell body and connected to the fuel cell body. The liquid fuel is introduced by the capillary action into the unit cell included in the fuel cell body and vaporized within the unit cell so as to be supplied to the fuel electrode, thereby generating an electric power. The liquid fuel tank is provided with a pressure adjusting mechanism for introducing a required amount of the liquid fuel from a liquid outlet port into the unit cell.

Liquid fuel-housing tank for fuel cell and fuel cell

Disclosed is a dye-sensitized solar cell comprising a gel electrolyte that contains a gelling agent and an electrolyte, wherein the gelling agent contains at least one kind of a polymer selected from the group consisting of a first polymer in which polysulfonic acid is crosslinked by a metal ion having a valency of not less than two, a second polymer in which polycarboxylic acid is crosslinked by a metal ion having a valency of not less than two, a third polymer in which a quaternary ammonium salt of polysulfonic acid is crosslinked by a metal ion having a valency of not less than two and a fourth polymer in which a quaternary ammonium salt of polycarboxylic acid is crosslinked by a metal ion having a valency of not less than two.

Raw material kit for electrolytic composition, electrolytic composition, and dye-sensitized solar cell

The present invention provides an electrolyte composition, comprising an electrolyte containing at least one kind of an imidazolium salt selected from the group consisting of 1-methyl-3-propyl imidazolium iodide, 1-methyl-3-isopropyl imidazolium iodide, 1-methyl-3-butyl imidazolium iodide, 1-methyl-3-isobutyl imidazolium iodide and 1-methyl-3-sec-butyl imidazolium iodide, a halogen-containing compound dissolved in the electrolyte, and a compound dissolved in the electrolyte and containing at least one element selected from the group consisting of N, P and S, the compound being capable of forming an onium salt together with the halogen-containing compound.

Electrolyte composition, photosensitized solar cell using said electrolyte composition, and method of manufacturing photosensitized solar cell

A photovoltaic conversion element comprising, a first transparent electrode, a transparent semiconductor layer disposed on the first transparent electrode, a sensitizing dye adsorption portion which is disposed on the surface of the transparent semiconductor layer, a carrier transport layer formed on the sensitizing dye adsorption portion, and a second transparent electrode disposed on the carrier transport layer, wherein the sensitizing dye adsorption portion comprises sensitizing dyes of plural kinds of color, which are adsorbed on a plurality of surface regions of the semiconductor layer.

Photovoltaic conversion element and a dye-sensitizing photovoltaic cell

Disclosed are a circuit substrate which comprises a silicon nitride ceramic plate 1 having a thermal conductivity at room temperature of 80 W/mK or more and a metal plate 2 joined to the silicon nitride ceramic plate 1 through a glass layer 3, and a semiconductor device in which the circuit substrate is mounted.

Silicon nitride ceramic circuit substrate and semiconductor device using

Disclosed is a silicon nitride circuit substrate, a manufacturing procee thereof, and a semiconductor device therewith. The circuit substrate comprises: a silicon nitride substrate; a metal circuit plate; and a intermediate layer being interposed between the silicon nitride board and the metal circuit plate for joining the silicon nitride substrate and the metal circuit plate, and having a compound containing an aluminum oxide component. The concentration of the aluminum oxide component in the intermediate layer is higher in the side of the metal circuit plate than in the side of the silicon nitride board.

Silicon nitride circuit substrate and semiconductor device containing

Disclosed are a high thermal conductivity silicon nitride circuit substrate which comprises a silicon nitride ceramic plate having a thermal conductivity at 25.degree. C. of 60 W/m.multidot.K or more and a metal circuit plate joined to the silicon nitride ceramic plate through an intermediate layer containing oxygen and at least one element selected from the group consisting of titanium, zirconium, hafnium, niobium and aluminum, and a semiconductor device using the same.

High thermal conductivity silicon nitride circuit substrate and

A circuit board having at least one insulator layer and at least one conductor layer which includes at least one of the whole insulator layers in a sintered body containing .beta.-Si.sub.3 N.sub.4 as a main component and at least one element selected from the group consisting of a rare earth element and an alkaline earth element, and at least one of the whole conductor layers contains at least one element selected from the group of IVb, Vb and VIb group of the periodic table, and at least one element selected from the group of a rare earth element and an alkaline earth element, and a Si element.

Circuit board with high strength and high reliability and process for

Disclosed is a sintered aluminum nitride composition and a circuit substrate for use in semiconductor device. The sintered aluminum nitride composition comprises: aluminum nitride; a first component given by a compound containing an element which is selected from the group consisting of alkaline earth elements and group IIIa elements of the periodic table; a second component made of either a simple silicon or a silicon-containig compound; and a third component made of either a simple manganese or a manganese-containing compound. The circuit substrate has an insulating layer which is compoesd of the above-described sintered aluminum nitride composition, and an electrically conductive layer containing an electrically conductive material and the same components as those of the insulating layer.

Growing community of inventors

Tokyo, Japan

Hiroyasu Sumino