The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2018
Filed:
Apr. 30, 2015
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Atsuo Ikeuchi, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Abstract
A redox flow battery includes a battery unit, a positive electrode electrolyte tank, a negative electrode electrolyte tank, and a pressure adjustment mechanism. The battery unit includes a positive electrode, a negative electrode, and a membrane. The positive electrode electrolyte tank stores a positive electrode electrolyte to be supplied to the battery unit. The negative electrode electrolyte tank stores a negative electrode electrolyte to be supplied to the battery unit. The pressure adjustment mechanism is attached to at least one of the electrolyte tanks and adjusts the pressure of a gas phase inside the electrolyte tank. The pressure adjustment mechanism is provided with a water sealed valve which includes a storage container that stores a pressure adjusting liquid, a first exhaust tube that extends from the gas phase inside the electrolyte tank, extends through a gas phase inside the storage container, and is open to a liquid phase inside the storage container, and a second exhaust tube whose one end is open to the gas phase inside the storage container and whose other end is open to the atmosphere. The pressure adjusting liquid is a non-volatile liquid at normal temperature and normal pressure.