##  [Hydrogen Electrolyzer](/hydrogen-electrolyzer) 

  ##  [Hydrogen Electrolyzer](https://engineering.quantumdictionary.io/hydrogen-electrolyzer-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

An electrochemical device or plant that uses electrical energy to drive the water‑splitting reaction (electrolysis), producing hydrogen at the cathode and oxygen at the anode; electrolyzers are characterized by cell type (e.g., alkaline, PEM, solid‑oxide), input electricity characteristics, production rate (kg/h), and system integration for storage, transport or further chemical use.