Asahi Kasei Kabushiki Kaisha

Nikon Corporation

Junya Yamashita

Atsushi Suzuki

Yuka Kanada

Shozo Takada

Kazuya Kai

Hiroko Kamochi

Kiyoshige Shibazaki

Keiichi Nitta

Takaaki Hashimoto

Hirofumi Hidari

Satomi Fukunaga

Yasunobu Nakagawa

An object of the present invention is to provide a membrane for a redox flow battery which is prevented from being curled and exhibits high power efficiency, a membrane electrode assembly for a redox flow battery, a cell for a redox flow battery, and a redox flow battery. The object can be attained by a membrane for a redox flow battery, comprising a first ion-exchange resin layer, an anion-exchange resin layer containing an anion-exchange compound, and a second ion-exchange resin layer in the presented order, wherein a value obtained by dividing a thickness of the first ion-exchange resin layer by a thickness of the second ion-exchange resin layer is 0.7 or more and 1.3 or less, and a thickness of the anion-exchange resin layer is 0.02 μm or larger and 3 μm or smaller.

Membrane for redox flow battery, method for producing membrane for redox flow battery, membrane electrode assembly for redox flow battery, cell for redox flow battery, and redox flow battery

The present invention provides an electrolyte membrane for a redox flow battery, comprising a perfluorocarbon polymer having an ion-exchange group, wherein the perfluorocarbon polymer has equivalent weight EW of the ion-exchange group of 600 g/eq or more and 2000 g/eq or less, a craze area ratio of the electrolyte membrane is 1.5% or less, and a relative dimension of the electrolyte membrane in at least one of a X direction and a Y direction is 80% or more and less than 100% in the following relative dimension by dipping in 2 M aqueous sulfuric acid solution.

Electrolyte membrane for redox flow battery, redox flow battery, and method for producing electrolyte membrane

A carbon foam formed of carbon fibers, where, at 90% or more of any 20 locations, the carbon fibers have a fiber diameter that is within &#xb1;20% of an average fiber diameter.

Carbon foam, assembly and manufacturing method

A carbon foam comprising linear portions and node portions joining the linear portions, wherein the linear portions have a diameter of 0.1 &#x3bc;m or more and 10.0 &#x3bc;m or less, and the carbon foam has a surface with an area of 100 cmor more.

Carbon foam and manufacturing method thereof

It is an object of the present disclosure to provide a thin-film carbon foam and a method of manufacture the same. It is another object of the present disclosure to provide a stack carbon foam having fewer through holes and a method of manufacturing the same. The carbon foam of the present disclosure is, for example, a stack carbon foam being a stack of at least two monolayer carbon foams stacked one another, each monolayer carbon foam comprising linear portions and node portions joining the linear portions, or a carbon foam comprising linear portions and node portions joining the linear portions, wherein the ratio of the number of large through holes having a diameter of 1 mm or more to the surface area of the carbon foam is 0.0003/mmor less.

Carbon foam, stack carbon foam, and method of manufacturing stack carbon foam

Provided is a carbon foam and a membrane electrode assembly having linear portions and node portions joining the linear portions; and a carbon foam and a membrane electrode assembly having linear portions and node portions joining the linear portions, where the carbon content is 51 mass % or more, and the mean deviation of coefficient of friction by the Kawabata evaluation system method is 0.006 or less.

Carbon foam and membrane electrode assembly

A camera of the type in which a rotary filter having color filter sections formed for three different colors is rotated between an image pickup and an object and the image pickup repeatedly stores one frame of a video signal therein. The camera comprising a rotation controller, a memory and an output controller. The rotation controller controls the rotation of the rotary filter in such manner that the image pickup scans by at least two frames of the video signal for a certain residence time during which each of the color filter sections is disposed between the image pickup and the object. The output controller controls the outputting of the video signal from the image pickup into the memory. The output controller inhibits the image pickup from outputting into the memory the first frame of the video signal during residence time.

Growing community of inventors

Tokyo, Japan

Junya Yamashita