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Which process limits charge carrier mobility in solid electrolytes?

A)Ionic hopping between lattice defects
B)Electronic band structure formation
C)Phonon scattering becomes negligible
D)Space charge layer destabilization

💡 Explanation

Ionic conductivity depends on ion movement; the mechanism is ionic hopping. Temperature and defects facilitate hopping; ionic movement is limited by lattice defects because ions must have nearby vacancies to hop, therefore lattice imperfections limit movement, rather than other options for electrical conductivity.

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