Alkaline electrolytic cell equipment

The alkaline electrolyzer apparatus addresses the inefficiency of surface area utilization in large-scale installations by vertically stacking electrolyzer units, enhancing capacity and reducing costs.

JP7725735B2Active Publication Date: 2025-08-19ABB (SCHWEIZ) AG
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Patent Information

Application Number
JP2024533911
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-12-16
Filing Date
2022-12-07
Publication Date
2025-08-19
Estimated Expiration
2042-12-07

AI Technical Summary

Technical Problem

Existing alkaline electrolyzers face challenges in efficiently utilizing surface area for hydrogen production, particularly in large-scale installations, leading to high costs and inefficiencies.

Method used

An alkaline electrolyzer apparatus comprising a first and second alkaline electrolyzer unit, with the second unit positioned vertically above the first and supported by a load-bearing surface, allowing for increased capacity per surface area through vertical stacking of electrolyzer cells.

Benefits of technology

Enhances the capacity of the electrolyzer device per surface area, improving efficiency and reducing installation costs by optimizing the use of available space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an alkaline electrolyzer apparatus (10, 40, 70, 310) for producing hydrogen gas. The apparatus comprises a first alkaline electrolyzer unit (11, 41, 71, 311) and a second alkaline electrolyzer unit (21, 51, 81, 321), each of the first alkaline electrolyzer unit and the second alkaline electrolyzer unit comprising a first end plate (13, 23, 43, 53, 73, 83, 313, 323), a second end plate (15, 25, 45, 55, 75, 85, 315, 325) and a plurality of electrolyzer cells (19, 29, 49, 59) forming a cell stack (17, 27, 47, 57, 77, 87, 117, 317, 327) arranged between the first and second end plates. The alkaline electrolytic cell apparatus further comprises a load-bearing surface (30, 30', 60, 90, 330) disposed between the first alkaline electrolytic cell unit and the second alkaline electrolytic cell unit, whereby the second alkaline electrolytic cell unit is disposed vertically above the first alkaline electrolytic cell unit and is supported by the load-bearing surface.
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Citation Information

Patent Citations

  • Modular assembly for coupling electrochemical units

    US20140251796A1

  • Efficient treatment of wastewater using electrochemical cell

    US20150298998A1