Sharp Kabushiki Kaisha Corporation

Hironori Kambara

Toshiyuki Fujita

Tomohisa Yoshie

Masashi Muraoka

Ryoji Matsui

Masayoshi Ozaki

Yukiya Higuchi

Provided is a fuel cell stack having reduced thickness and weight and an improved output density. The fuel cell stack according to the present invention includes two or more stacked fuel cell layers, and is characterized in that at least one of the fuel cell layers is formed by arranging two or more composite unit cells in an identical plane with a gap provided therebetween, that the composite unit cell includes a plurality of unit cells and a fuel supply portion for supplying fuel to anode electrodes of the unit cells, and that the anode electrodes of the plurality of unit cells are arranged to face the fuel supply portion.

Fuel cell stack and electronic device provided with the same

There is provided a contactless electricity-supplying device that can safely and efficiently supply power to a load. A contactless electricity-supplying device includes a plurality of electricity-supplying coils; a DC/AC converter that converts an output voltage from a DC supplying unit into an AC voltage to be applied to each electricity-supplying coils; a plurality of electricity-receiving coils selectively and detachably mounted on positions where the electricity-receiving coils are electromagnetically coupled to the electricity-supplying coils to receive AC voltages from the corresponding electricity-supplying coils in a contactless manner; a plurality of rectifying/smooth units that each convert an AC voltage output from each electricity-receiving coil into a DC voltage and smooth the DC voltage; a switching device that connects the DC voltages output from the rectifying/smoothing units to a single load; an electricity-reception detection sensor for detecting that the electricity-receiving coils receive the AC voltages from the corresponding electricity-supplying coils; and a control unit that turns on the switching device when it is detected that all of the electricity-receiving coils receive the AC voltages from the corresponding electricity-supplying coils.

Contactless electricity-supplying device

A control device includes a storage device storing reference power, basic device point information showing a control priority representing a degree for determining a control order of a plurality of devices, and room information showing a priority of each room in which the plurality of devices are disposed; an acquisition unit acquiring power usage of the plurality of devices; a changing unit changing the basic device point information based on the room information; a determination unit determining whether or not the acquired power usage has exceeded the reference power; and a transmitting unit transmitting, to a device of the plurality of devices that is relatively high in control priority after change, an instruction to reduce the power usage of this device, based on determination that the acquired power usage has exceeded the reference power.

Control device, power usage control system and control method

A fuel cell stack formed by stacking two or more fuel cell layers each constituted of one or more unit cell and a fuel cell system including the same are provided. Any two fuel cell layers adjacent to each other each have one or more gap region. At least a part of the gap region in one fuel cell layer of any two fuel cell layers adjacent to each other is in contact with a unit cell constituting the other fuel cell layer. The gap region in one fuel cell layer and the gap region in the other fuel cell layer communicate with each other. The fuel cell stack is excellent in fuel or oxidizing agent supply performance and it realizes high power density.

Fuel cell stack and fuel cell system

A fuel cell including an anode conductive layer, an anode catalyst layer, an electrolyte membrane, a cathode catalyst layer, a cathode conductive layer, and a cathode diffusion layer stacked in this order, in which the cathode diffusion layer has a fabric structure in which a water-swellable fiber and a non-water-swellable fiber are arranged. Preferably, in the fabric structure, the water-swellable fiber is arranged in either one of a warp and a weft. Preferably, gas permeability of the cathode diffusion layer increases as the water absorption amount of the water-swellable fiber increases.

Growing community of inventors

Osaka, Japan

Hironori Kambara