Electrolyzer and electrolytic device thereof

Patent metadata

Field	Value
Publication number	US-2025215592-A1
Application number	US-202418972661-A
Country	US
Kind code	A1
Filing date	Dec 6, 2024
Priority date	Dec 29, 2023
Publication date	Jul 3, 2025
Grant date	—

Abstract

An electrolyzer includes a casing and an electrolytic device. The casing includes two side plates. The electrolytic device is disposed between the two side plates, and the electrolytic device includes a plurality of porous layers, a plurality of current collector plates, a plurality of membranes and a plurality of heating units. The current collector plates are arranged in an alternating manner with the porous layers. The membranes are disposed corresponding to the porous layers. The heating units are respectively disposed on at least some of the current collector plates.

First claim

What is claimed is:

1 . An electrolyzer comprising:
a casing comprising two side plates; and an electrolytic device disposed between the two side plates, and the electrolytic device comprising:
a plurality of porous layers;
a plurality of current collector plates arranged in an alternating manner with the plurality of porous layers;
a plurality of membranes disposed corresponding to the plurality of porous layers; and
a plurality of heating units respectively disposed on at least some of the plurality of current collector plates.

2 . The electrolyzer according to claim 1 , wherein each of the plurality of current collector plates comprises a tab, and the plurality of heating units are respectively disposed on at least some of the tabs.

3 . The electrolyzer according to claim 2 , wherein the plurality of heating units are respectively disposed on each of the tabs of the plurality of current collector plates.

4 . The electrolyzer according to claim 2 , wherein the plurality of current collector plates comprises two first current collector plates and a second current collector plate, the second current collector plate is located between the two first current collector plates, each of the two first current collector plates is provided with one of the plurality of heating units, and the second current collector plate is not provided with any of the plurality of heating units.

5 . The electrolyzer according to claim 1 , wherein two or more of the plurality of heating units are disposed on one of the plurality of current collector plates.

6 . The electrolyzer according to claim 1 , further comprising a temperature sensor and a control unit, wherein the control unit is in signal communication with the temperature sensor and the plurality of heating units, the temperature sensor is configured to sense a temperature of an electrolyte, the plurality of porous layers, or the plurality of current collector plates to obtain a temperature value, and the control unit is configured to control an operation of the plurality of heating units based on the temperature value.

7 . The electrolyzer according to claim 1 , wherein each of the plurality of membranes comprises a catalyst material.

8 . The electrolyzer according to claim 1 , wherein each of the plurality of membranes is an anion exchange membrane.

9 . An electrolytic device comprising:
two porous layers; two current collector plates, wherein the two porous layers are disposed between the two current collector plates; a membrane disposed between the two porous layers; at least one first heating unit disposed on one of the two current collector plates; and at least one second heating unit disposed on other of the two current collector plates.

10 . The electrolytic device according to claim 9 , wherein each of the two current collector plates comprises a tab, and the at least one first heating unit and the at least one second heating unit are respectively disposed on the tabs of the two current collector plates.

11 . The electrolytic device according to claim 10 , wherein the tabs extend beyond an edge of each of the two porous layers.

12 . The electrolytic device according to claim 9 , wherein the at least one first heating unit comprises a plurality of first heating units, the at least one second heating unit comprises a plurality of second heating units, the plurality of first heating units are arranged, spaced apart from each other, in a circumferential direction of one of the two current collector plates, and the plurality of second heating units are arranged, spaced apart from each other, in a circumferential direction of other of the two current collector plates.

13 . The electrolytic device according to claim 9 , wherein the membrane is an anion exchange membrane.

14 . The electrolytic device according to claim 9 , wherein the membrane comprises a catalyst material.

Assignees

• Ind Tech Res Inst

Inventors

• Su Po-Jen
• Chang Wen-Sheng
• Lee Chia-Hsin
• Yang Cheng-Hao
• Chen Chia-Hao

Classifications

• C25B15/027

  Temperature · CPC title

• C25B1/04

  by electrolysis of water · CPC title

• C25B9/67 Primary

  Heating or cooling means · CPC title

• C25B15/021 Primary

  of heating or cooling · CPC title

• C25B9/77

  having diaphragms · CPC title