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Journal of Materials Science

, Volume 30, Issue 14, pp 3612–3618 | Cite as

Transport property and battery discharge characteristic studies on 1−x(0.75Agl∶0.25AgCl)∶ xAl2O3 composite electrolyte system

  • R. C. Agrawal
  • R. K. Gupta
Papers

Abstract

Various experimental studies on a new fast Ag+ ion-conducting composite electrolyte system: (1−x) (0.75Agl∶0.25AgCl)∶xAl2O3 are reported. Undried Al2O3 particles of size <10 Μm were used. The conventional matrix material Agl has been replaced by a new mixed 0.75Agl∶0.25AgCl quenched and/or annealed host compound. Conductivity enhancements ∼10 from the annealed host and ∼3 times from the quenched host obtained for the composition 0.7(0.75Agl∶0.25AgCl)∶0.3Al2O3, can be explained on the basis of the space charge interface mechanism. Direct measurements of ionic mobility Μ as σ function of temperature together with the conductivity σ were carried out for the best composition. Subsequently, the mobile ion concentration n values were calculated from Μ and a data. The value of heat of ion transport q* obtained from the plot of thermoelectric power θ versus 1/T supports Rice and Roth's free ion theory for superionic conductors. Using the best composition as an electrolyte various solid state batteries were fabricated and studied at room temperature with different cathode preparations and load conditions.

Keywords

Al2O3 Ionic Mobility AgCl Thermoelectric Power Al2O3 Particle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • R. C. Agrawal
    • 1
  • R. K. Gupta
    • 1
  1. 1.Solid State Ionics Research Laboratory, School of Studies in PhysicsPt. Ravishankar Shukla UniversityRaipurIndia

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