##  [Coulombic Efficiency](/coulombic-efficiency) 

  ##  [Coulombic Efficiency](https://engineering.quantumdictionary.io/coulombic-efficiency-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

For an electrochemical cell or battery, the ratio of the total electric charge extracted during a discharge to the total charge supplied during the preceding charge, usually expressed as a percentage; the measure is based on charge (coulombs or ampere‑hours) and does not include voltage‑dependent energy differences.