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Electrode unit, electrolytic bath provided with electrode unit, electrolysis device, and method of manufacturing electrode of electrode unit

A technology of electrode unit and manufacturing method, which is applied in the direction of electrodes, electrolytic components, electrolytic process, etc., and can solve problems such as easy concentration, easy deterioration of anion exchange membrane, and deterioration of diaphragm

Active Publication Date: 2017-05-10
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In a three-chamber electrolytic cell, the anion exchange membrane is easily deteriorated by chlorine and hypochlorous acid
In addition, when the electrode with a porous structure and the ion exchange membrane (electrolyte membrane) are brought into close contact, stress tends to concentrate at the edge of the hole of the electrode, and it is easy to deteriorate a diaphragm such as an electrolyte membrane that is thin and has low mechanical strength.

Method used

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  • Electrode unit, electrolytic bath provided with electrode unit, electrolysis device, and method of manufacturing electrode of electrode unit
  • Electrode unit, electrolytic bath provided with electrode unit, electrolysis device, and method of manufacturing electrode of electrode unit
  • Electrode unit, electrolytic bath provided with electrode unit, electrolysis device, and method of manufacturing electrode of electrode unit

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Experimental program
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no. 1 Embodiment approach

[0037] figure 1 It is a figure which schematically shows the electrolysis apparatus which concerns on 1st Embodiment. The electrolysis device 10 includes, for example, a two-chamber electrolytic cell 11 having an electrode unit 12 . The electrolytic cell 11 is formed in a flat rectangular box shape, and its interior is divided into two chambers, an anode chamber 16 and a cathode chamber 18 , by a partition wall 14 and an electrode unit 12 .

[0038] The electrode unit 12 has a first electrode (anode) 20 located in the anode chamber 16, a second electrode (counter electrode, cathode) 22 located in the cathode chamber 18, and a porous membrane provided between the first and second electrodes. twenty four.

[0039] The electrolysis device 10 includes a power supply 30 for applying a voltage to the first and second electrodes 20 and 22 of the electrode unit 12 , an ammeter 32 , a voltmeter 34 , and a control device 36 for controlling them. Liquid flow paths may also be provided...

no. 2 Embodiment approach

[0065] Figure 6 It is a cross-sectional view schematically showing the electrolysis device according to the second embodiment, Figure 7 is an exploded perspective view of the electrode unit, Figure 8 is a cross-sectional view of the electrode unit. According to the second embodiment, the first electrode 20 of the electrode unit 12 has a porous structure, and the through holes have different hole diameters on the first surface 21a side and the second surface 21b side.

[0066] Such as Figure 6 ~ Figure 8 As shown, the first electrode 20 has, for example, a porous structure in which a plurality of through holes are formed on a base material 21 made of a rectangular metal plate. The base material 21 has the 1st surface 21a and the 2nd surface 21b facing the 1st surface 21a substantially parallel. The distance between the first surface 21a and the second surface 21b, that is, the plate thickness is T1. The first surface 21 a faces the porous membrane 24 , and the second s...

no. 3 Embodiment approach

[0090] Figure 12 It is a sectional view showing the electrolysis device according to the third embodiment. In the third embodiment, the electrolytic cell 11 of the electrolytic device 10 is configured as a one-chamber electrolytic cell having a single electrolytic chamber 17 . The electrode unit 12 is arranged in the electrolysis chamber 17 . Pipes, pumps, etc. for supplying and discharging the electrolytic solution from the outside may be connected to the electrolytic chamber 17 .

[0091] In the single-compartment electrolytic cell 11, the second electrode (counter electrode) 22 of the electrode unit 12 preferably has a porous structure similarly to the first electrode 20. By forming a porous structure, the electrode area can be increased.

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Abstract

This electrode unit 12 of an electrolysis device is provided with: a first electrode 20 comprising a first surface 21a, a second surface 21b positioned opposite of the first surface, and multiple through-holes 13 each opening to the first surface and the second surface; a second electrode 22 provided opposite of the first surface of the first electrode; and a porous film 24 formed on the first surface of the first electrode, covering the first surface and the through-holes, and containing an inorganic oxide.

Description

technical field [0001] The embodiments described here relate to an electrode unit, an electrolytic cell including the electrode unit, an electrolysis device, and a method of manufacturing an electrode of the electrode unit. Background technique [0002] In recent years, electrolysis apparatuses that generate electrolyzed water having various functions such as alkaline ionized water, ozone water, or hypochlorous acid water by electrolyzing water have been provided. This electrolysis device includes an electrolytic cell and an electrode unit provided in the electrolytic cell. [0003] For example, an electrolysis device having a three-chamber electrolysis cell has been proposed. The interior of the electrolytic cell is divided into three chambers, namely, an intermediate chamber and an anode chamber and a cathode chamber located on both sides of the intermediate chamber, by the cation exchange membrane and the anion exchange membrane constituting the electrode unit. An anode...

Claims

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Application Information

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IPC IPC(8): C25B9/08C02F1/46C25B9/00C25B11/03C25B13/02C25B13/04C25B9/19
CPCC25B11/03C25B13/02C25B13/04C02F1/46109C02F1/4674C02F2001/46157C02F2001/46161C02F2201/46115C25B1/26C25B11/051C25B11/077C25B11/057C25B9/19
Inventor 内藤胜之吉永典裕梅武富松师浩八木亮介横田昌广太田英男
Owner KK TOSHIBA