Sumitomo Electric Industries, Limited

Kenichiro Miyatake

Takashi Kanno

Hiroki Inoue

Ryoji Harada

Munetsugu Ueyama

Ryusuke Nakai

Kousuke Shiraki

Yuta Ochi

Isao Ozawa

A redox flow battery cell includes: an electrode to which an electrolyte solution is supplied; and a bipolar plate with which the electrode is arranged, wherein the bipolar plate has at least one groove portion through which the electrolyte solution flows, on a face on the electrode side, the electrode is made of a carbon fiber aggregate containing carbon fibers, and has a buried portion that is pressed toward the bipolar plate side and buried into the groove portion, and an amount of burial of the buried portion is not less than 0.2 mm and not more than 1.4 mm.

Redox flow battery cell and redox flow battery

An electrode for redox flow batteries, the electrode being formed of a carbon fiber aggregate including a plurality of carbon fibers. Each of the carbon fibers has a plurality of pleats formed in the surface thereof. The ratio of Lto L, that is, L/L, is more than 1, where Lis the peripheral length of a cross section of the carbon fibers and Lis the peripheral length of a virtual rectangle circumscribing the cross section of the carbon fibers.

Electrode for redox flow batteries, redox flow battery cell, and redox flow battery

A ballast water treatment apparatus includes a filtering device including a filter for filtering seawater, an ultraviolet irradiation device that irradiates the seawater filtered by the filter with ultraviolet light, a first path for supplying the seawater filtered by the filtering device to the ultraviolet irradiation device, a discharge water path for discharging the seawater remaining in the filtering device, a first valve provided in the first path, a second path for supplying the seawater flowing from the ultraviolet irradiation device to a ballast tank, and a control device that closes the first valve and cleans the filter by using the seawater introduced into the filtering device before the seawater filtered by the filtering device is supplied to the ultraviolet irradiation device.

Ballast water treatment apparatus and ballast water management system

Provided are a system and a method for treating ballast water for a ship, the system including a rotary filtration apparatus including a filter that is cylindrically formed so as to surround an axis, that is rotatable around the axis, and that has a pleated shape that is folded in a cylinder radial direction; and an electric motor for rotating the filter. A distance between the cleaning nozzle and a recess of the filter is 120 mm or less. The system and the method are configured to perform a steady-state operation that satisfies the following conditions a to d:

Ballast water treatment system for ship

A ballast water treatment apparatus includes a discharge path for discharging ballast water from a ballast tank that stores the ballast water, an ultraviolet irradiation device that includes an ultraviolet lamp and that irradiates the ballast water passing through the discharge path with ultraviolet light, a circulation path formed so that the ballast water circulates therethrough and is irradiated with ultraviolet light emitted from the ultraviolet lamp, a switching portion for switching a path through which the ballast water flows between the circulation path and the discharge path, and a control device that controls the switching portion so that the ballast water flows through the circulation path during a switching-on process of the ultraviolet lamp and controls the switching portion so that the ballast water flows through the discharge path when the switching on of the ultraviolet lamp is completed.

Growing community of inventors

Osaka, Japan

Kenichiro Miyatake