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← ScienceWhich phenomenon limits ionic conductivity in solid-state electrolytes as temperature decreases?
A)Increased grain boundary resistance
B)Decreased charge carrier concentration✓
C)Reduced lattice vibrational energy
D)Enhanced electronic polarization
💡 Explanation
As temperature decreases, thermal energy reduces, limiting ion mobility since ion transport relies on vacancies; this also reduces ionization in the electrolyte lattice. This reduces the charge carrier concentration impacting ionic conductivity. Therefore conductivity is reduced, rather than grain boundary, vibrational or polarization which require different thermal dynamics.
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