Abstract
The secondary current distribution in a Hull cell is investigated by numerical calculation and experimental measurement. Theoretical calculations with the finite element method and the boundary element method are performed for linear kinetics, Tafel kinetics, and complete Butler‐Volmer kinetics as boundary conditions at the cathode. A dimensional analysis of the problem for Butler‐Volmer kinetics shows that the current distribution depends on three dimensionless parameters. Good agreement between the results obtained with the two numerical approaches is observed, and the calculations are verified experimentally for copper deposition from an acid copper sulfate electrolyte.
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