Ion exchange membrane electrolyzer and elastic body

Patent metadata

Field	Value
Publication number	US-10208388-B2
Application number	US-201414916974-A
Country	US
Kind code	B2
Filing date	Oct 23, 2014
Priority date	Nov 6, 2013
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

Abstract

An ion exchange membrane electrolyzer includes an elastic body configured to press on a second electrode so as to bring an ion exchange membrane into close contact with electrodes. The elastic body includes a fixed part fixed to one of a base part and the second electrode, and an elastic part that extends from the fixed part, and is configured to press on the second electrode by elastic deformation. The elastic part is formed so as to be plate-like and formed so as to be corrugated along a direction in which it extends, such that a top part on one side is in contact with the base part and a top part on the other side is in contact with the second electrode.

First claim

What is claimed is:

1. An ion exchange membrane electrolyzer, comprising:
a first electrode;
a base part fixed with respect to and spaced from the first electrode;
a second electrode disposed between the first electrode and the base part;
an ion exchange membrane disposed between the first electrode and the second electrode; and
an elastic body disposed between the base part and the second electrode in an elastically deformable manner, and configured to press on the second electrode so as to bring the ion exchange membrane into close contact with the electrodes, wherein
the elastic body includes: an elongate-shaped fixed part extending in a longitudinal direction and having two longitudinal outer sides, said fixed part being fixed to one of the base part and the second electrode; and a plurality of elastic parts, wherein a first group of the plurality of elastic parts are attached to a first of said two sides and extend in a cross-wise direction beyond said first side, and a second group of the plurality of elastic parts are attached to a second of said two sides and extend in a cross-wise direction beyond said second side, and wherein each of the plurality of elastic parts is configured to press on the other of the base part and the second electrode by elastic deformation, and
each of the plurality of elastic parts is formed so as to be corrugated along a direction in which it extends, such that a crest part on a first side of said elastic part is in contact with the base part and a trough part on a second side of said elastic part is in contact with the second electrode.

2. The ion exchange membrane electrolyzer according to claim 1 , wherein
at least one of the crest part on the first side or the trough part on the second side of each of the plurality of elastic parts is formed in a curved shape.

3. The ion exchange membrane electrolyzer according to claim 1 , wherein
at least one of the crest part on the first side or the trough part on the second side of each of the plurality of elastic parts is formed in a planar shape.

4. An elastic body comprising:
an elongate-shaped fixed part extending in a longitudinal direction and having two longitudinal outer sides; and
a plurality of elastic parts, wherein a first group of the plurality of elastic parts are attached to a first of said two sides and extend in a cross-wise direction beyond said first side, and a second group of the plurality of elastic parts are attached to a second of said two sides and extend in a cross-wise direction beyond said second side, and wherein each of the plurality of elastic parts is configured to press on either a base part or a second electrode by elastic deformation,
wherein:
the elastic body is configured to be disposed in an elastically deformable manner between the base part, which is fixed with respect to and spaced from a first electrode, and the second electrode, which is disposed between the first electrode and the base part, and
wherein each of the plurality of elastic parts is formed so as to be corrugated along a direction in which it extends, such that a crest part is formed on a first side of each of the plurality of elastic parts and a trough part is formed on a second side of each of the plurality of elastic parts.

5. The elastic body according to claim 4 , wherein
at least one of the crest part on the first side or the trough part on the second side of each of the plurality of elastic parts is formed in a curved shape.

6. The elastic body according to claim 4 , wherein
at least one of the crest part on the first side or the trough part on the second side of each of the plurality of elastic parts is formed in a planar shape.

Assignees

• Osaka Soda Co Ltd

Inventors

• Hatano Satoshi
• Nagase Manabu
• Weitao Li

Classifications

• C25B13/08

  based on organic materials · CPC title

• C25B9/73

  of the filter-press type · CPC title

• C25B13/02

  characterised by shape or form · CPC title

• C25B9/23 Primary

  comprising ion-exchange membranes in or on which electrode material is embedded · CPC title

• C25B9/206

  Chemistry & Metallurgy · mapped topic