电解水制氢的电极组件结构及电解槽

By adopting a symmetrical structure with cathode components on both sides of the bipolar plate and a detachable connection method in the water electrolysis hydrogen production equipment, combined with the design of isolation gaskets and detachable electrode frames, the problems of uneven gas-liquid transmission and unstable electrolysis efficiency caused by uneven fixing of electrode components are solved, and the high efficiency, stable operation and safety improvement of the electrolyzer are achieved.

CN224513644UActive Publication Date: 2026-07-17WEIWEI AER (HANGZHOU) ENGINEERING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIWEI AER (HANGZHOU) ENGINEERING TECHNOLOGY CO LTD
Filing Date
2025-09-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing water electrolysis hydrogen production equipment, the way the electrode assembly is fixed leads to poor gas-liquid transmission, unstable electrolysis efficiency, and potential safety hazards. Furthermore, the unstable distance between the electrode and the diaphragm affects the voltage fluctuation of the electrolyzer.

Method used

The device employs a symmetrical structure with cathode assemblies on both sides of the bipolar plate. The cathode assemblies are detachably connected to the bipolar plate. It is equipped with isolation gaskets and cathode gaskets. Combined with the detachable electrode frame and diaphragm design, the stability and sealing of the electrode assembly are ensured.

Benefits of technology

It improves electrolysis efficiency and stability, reduces operating costs, enhances safety and sealing performance, extends the service life of electrodes and bipolar plates, and optimizes current distribution and gas discharge paths.

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Abstract

本实用新型公开了一种电解水制氢的电极组件结构及电解槽,采用双极板两侧均设置阴极组件的对称结构,提高了单位体积内的电极密度,增强了电解效率;阴极组件与双极板采用可拆卸连接方式,便于维护和更换,降低了使用成本;设置隔离垫片可有效防止双极板与阴极组件之间发生短路或电解液泄漏,提升安全性和密封性能,同时隔离垫片与两者紧密贴合,确保了良好的电接触和结构稳定性,将上述高性能电极组件应用于电解槽中,结合可拆卸连接的极框和隔膜结构,使得整个电解槽模块化程度高,便于组装、检修和部件更换;隔膜可拆卸设计便于清洗或更换,延长电解槽整体使用寿命;该电解槽结构紧凑、密封性好、运行稳定。
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Claims

1. An electrode assembly structure for hydrogen production by water electrolysis, characterized in that, The device includes a bipolar plate, with cathode assemblies on both sides of the bipolar plate. The cathode assemblies are detachably connected to the bipolar plate, and an isolation gasket is provided between the cathode assemblies and the bipolar plate. The isolation gasket is in contact with both the bipolar plate and the cathode assemblies.

2. The electrode assembly structure for hydrogen production by water electrolysis according to claim 1, wherein The cathode assembly includes a cathode plate, and a cathode gasket is disposed on the cathode plate, the cathode gasket being attached to the cathode plate.

3. The electrode assembly structure for hydrogen production by water electrolysis according to claim 2, wherein A cathode groove is provided on the cathode plate, and a cathode pad is disposed in the cathode groove.

4. The electrode assembly structure for hydrogen production by water electrolysis according to claim 3, wherein The bottom diameter of the cathode groove is smaller than the opening diameter of the cathode groove.

5. The electrode assembly structure for hydrogen production by water electrolysis according to claim 1, wherein A connecting sleeve is provided on the bipolar plate, and the connecting sleeve is fixedly connected to the bipolar plate.

6. The electrode assembly structure for hydrogen production by water electrolysis according to claim 5, wherein The cathode assembly is fixedly connected to the bipolar plate by screws and connecting sleeves.

7. An electrolyzer for hydrogen production by electrolysis of water, using the electrode assembly for hydrogen production by electrolysis of water according to any one of claims 1 to 6, characterized in that It includes an electrode frame, which is detachably connected to an electrode assembly, and a diaphragm is disposed on the electrode frame, which is detachably connected to the electrode frame.