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← ScienceWhich outcome occurs when applying excessive voltage to electrolyte in aluminum electrolytic capacitor fabrication?
A)Ionic bond disruption leading to dielectric breakdown✓
B)Increased capacitance due to surface area growth
C)Electrode oxidation improving conductivity
D)Polymer cross-linking increasing ESR
💡 Explanation
When excessive voltage is applied, the strong electric field causes migration and forceful impact of ionic species, disrupting the intended ionic bonds within resulting in an electrolytic process causing dielectric breakdown. Therefore, bond disruption leads to failure, rather than capacitance increase, electrode improvement, or polymer cross-linking requiring different bias or annealing conditions.
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