Specific Energy Consumption and Cell Voltage

The cell voltage is a complex quantity which depends on the electrode potentials [Equations (17.5) and (17.6)], but also on the ohmic potential drops IR, which are related to the current flow through the electrochemical cell and the electric circuit (cables, current leads, etc.)  

Whereas the cell voltage is a global parameter, the electrode potentials and the ohmic drops are local parameters which are, of course, interdependent 

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