Oxygen reduction device and refrigerator

Abstract

PROBLEM TO BE SOLVED: To provide an oxygen decreasing device which can control performance deterioration due to cathode flooding phenomena and impurity ions and can also control the deterioration of durability resulting from the exfoliation between an anode and an electrolyte film.SOLUTION: The oxygen decreasing device includes an oxygen decreasing cell, an electrode assembly, and cathode current-collecting layer. The oxygen decreasing cell includes an anode in which a catalyst which oxidizes the water vapor supplied is contained, a cathode which has the cathode catalyst layer in which the catalyst which reduces the oxygen is contained, and an electrolyte film held between the anode and the cathode. The electrolyte film has proton conductivity. The electrode assembly is arranged across the anode between the electrolyte film. The electrode assembly includes the anode current-collecting layer and a vaporizing layer to which water is supplied. The vaporizing layer is arranged at least on one surface of both surfaces of anode current-collecting layer. The vaporizing layer evaporates the water supplied to the layer to water vapor in order to supply to the anode. It is characterized to arrange the cathode current-collecting layer across the cathode between the electrolyte film.

Description

[0001] References to related applications

[0002] This application is based on Japanese Patent Application No. 2012-246192 (filing date: November 8, 2012), and enjoys the priority of this application. This application incorporates the entire contents of this application by reference thereto. technical field

[0003] Embodiments of the present invention relate to an oxygen reduction device for reducing oxygen concentration and a refrigerator including the device. Background technique

[0004] In order to improve the preservation property of foodstuffs, etc., an oxygen reduction device that reduces the oxygen concentration in a storage space (oxygen reduction space) by using an electrochemical reaction using an electrolyte membrane has been proposed.

[0005] This device includes an oxygen reduction cell (cell) in which a polymer electrolyte membrane having proton (proton) conductivity is sandwiched between an anode (anode) and a cathode (cathode). This unit is arranged so ...

Images