US 12,571,115 B2Granted

Electrolyzer, and method for producing electrolyzer

AssigneeAsahi Kasei Kabushiki Kaisha

InventorsShujiro Shimizu, Mamoru Matsuoka, Akiyasu Funakawa, Yoshifumi Kado

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Abstract

An electrolyzer containing: an anode, a cathode that is opposed to the anode, a membrane that is arranged between the anode and the cathode; a first elastic body that presses the cathode in a direction toward the anode, a first electrode for electrolysis that is arranged between the membrane and the cathode; and a second elastic body that is arranged between the first electrode for electrolysis and the cathode and presses the first electrode for electrolysis in the direction toward the anode, wherein the first electrode for electrolysis serves as a cathode electrode, and the first electrode for electrolysis, the second elastic body, the cathode, and the first elastic body are electrically connected.

Claims17

Dependent claims

An electrolyzer comprising:

an anode,
a cathode that is opposed to the anode,
a membrane that is arranged between the anode and the cathode;
a first elastic body that presses the cathode in a direction toward the anode,
a first electrode for electrolysis that is arranged between the membrane and the cathode;
a second elastic body that is arranged between the first electrode for electrolysis and the cathode and presses the first electrode for electrolysis in the direction toward the anode,
a collector that is arranged on a first surface of the first elastic body, the first surface being an opposite side of the cathode,
a support that is arranged on a second surface of the collector, the second surface being an opposite side of the first elastic body, and
a partition wall that is arranged on a third surface of the support, the third surface being an opposite side of the collector, wherein
the first electrode for electrolysis serves as a cathode electrode, and
the first electrode for electrolysis, the second elastic body, the cathode, and the first elastic body are electrically connected.

8 more elements

An electrolyzer comprising:

an anode,
a cathode that is opposed to the anode,
a membrane that is arranged between the anode and the cathode,
a first electrode for electrolysis that is arranged between the membrane and the cathode,
a second electrode for electrolysis that is arranged between the anode and the membrane,
an elastic body that is arranged between the first electrode for electrolysis and the cathode and presses the first electrode for electrolysis in a direction toward the anode, and
a support that directly supports the cathode, wherein
the first electrode for electrolysis serves as a cathode electrode,
the second electrode for electrolysis serves as an anode electrode,
a thickness of the first electrode for electrolysis is 120 μm or less,
the first electrode for electrolysis is one that is configured such that it can be in the form of a wound body before it is arranged in the electrolyzer in an unwound state,
the first electrode for electrolysis, the elastic body, the cathode, and the support are electrically connected, and
the second electrode for electrolysis and the anode are electrically connected.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/801,976Filed 26 Feb 2021
Priority: JP 2020-03076826 Feb 2020
Published: US 2023/0140700 A14 May 2023
Granted: 10 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

C25B 9/63
Constructional parts of cells: holders for electrodes; Positioning of the electrodes
C25B 9/23
With diaphragms: comprising ion-exchange membranes in or on which electrode material is embedded
C25B 9/60
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies;…:…
C25B 9/77
Of the filter-press type: having diaphragms