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Which process decreases current flow when applying increasing voltage across solid-state electrolyte in battery?

A)Space charge layer saturation
B)Electrode polarization reduction
C)Ohmic resistance minimization
D)Interfacial capacitance maximization

💡 Explanation

When increasing voltage is applied across the solid-state electrolyte, space charge layers form due to mobile ion depletion near the blocking electrodes because of ionic conductivity and charge accumulation, decreasing the number of mobile ions available. Therefore, space charge layer saturation results, rather than polarization reduction, resistance minimization or capacitance maximization which require changes within the bulk electrolyte or electrochemical interfaces.

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