Anti-corrosion salt-resistant diaphragm-free electrolytic cell with separation effect

By designing a corrosion-resistant and salt-resistant diaphragm-free electrolyzer with built-in separation effect, and using a double "U"-shaped flow channel structure and corrosion-resistant materials, the diaphragm limitation problem in the electrolysis of high-salinity water was solved, achieving efficient production of high-purity hydrogen and reducing costs.

CN122081972APending Publication Date: 2026-05-26ZHIZHENG CHANGXIN INTELLIGENT MANUFACTURING TECHNOLOGY (SICHUAN) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHIZHENG CHANGXIN INTELLIGENT MANUFACTURING TECHNOLOGY (SICHUAN) CO LTD
Filing Date
2026-03-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing electrolyzers are limited by diaphragms when electrolyzing high-salinity water, resulting in high manufacturing and maintenance costs, and making it difficult to efficiently produce high-purity hydrogen.

Method used

Design a corrosion-resistant and salt-resistant diaphragm-free electrolytic cell with self-separation effect. It adopts a double "U"-shaped flow channel structure composed of components such as upper flow channel core, cathode mesh, anode mesh, conductive column and sealing ring to achieve the separation and purification of electrolyte. Corrosion-resistant materials such as polytetrafluoroethylene or titanium are used to ensure uniform current distribution and controllable electrode spacing.

Benefits of technology

It enables the direct electrolysis of high-salinity water to produce high-purity hydrogen, reducing manufacturing and maintenance costs while ensuring hydrogen purity ≥99%.

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Abstract

The invention discloses an anti-corrosion salt-resistant diaphragm-free electrolytic cell with a separation effect. The anti-corrosion salt-resistant diaphragm-free electrolytic cell comprises an upper runner core, an anode net, a cathode net, an anode conductive column, a cathode conductive column, an upper runner sealing ring, an outer shell, a fastening bolt, a lower runner sealing ring and a lower runner body which are sequentially arranged, the upper flow channel core comprises an upper flow channel core head, an upper flow channel core plate surface, an upper flow channel core sealing groove, an upper flow channel fastening hole, an upper flow channel core anode limiting groove, an upper flow channel core cathode limiting groove, an upper flow channel core anode conductive column threaded hole, an upper flow channel core cathode conductive column threaded hole, a flow dividing cavity, a flow dividing channel, a flow discharging opening and a flow hole; the lower runner body mainly comprises a lower runner end face, a lower runner bottom end face, a lower runner fastening hole, a lower runner anode limiting groove and a lower runner cathode limiting groove; and an electrolyte inlet, a cathode outlet I, a cathode outlet II, an anode outlet I, an anode outlet II, a cathode cleaning liquid inlet, an anode cleaning liquid inlet, an anode liquid outlet and a cathode liquid outlet are further formed.
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