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Which outcome is likely inside solid-state battery electrolytes undergoing overcharge?

A)Lithium dendrite formation accelerates quickly.
B)Organic solvent oxidation reduces impedance.
C)Electrolyte's ionic conductivity spikes rapidly.
D)Polymer binder mechanical strength increases.

💡 Explanation

Prolonged high voltage causes lithium ions to preferentially deposit at defects via electromigration; this is called lithium plating. Plating leads to dendrite formation because the electrical field concentrates at dendrite tips. Therefore dendrites penetrate, rather than conductivity increases, during overcharging.

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