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Abstract : The conducting polymers like CHx are very interesting materials for electrodes in electrochemical cells. We have combined such electrodes with solid electrolytes to build -all solid-state- batteries. The first prototypes using a silver anode and a silver conducting electrolyte have been working satisfactorily since two years. The performances have been tested with many batteries to study the electrical properties as well as the thermodynamical parameters. A number of cycles of charge-discharge have been recorded at various values of the current kept constant. This has allowed to determine the essential properties : voltage, current, current density, reliability, Faradaic and energetic efficiency

. The performances have also been investigated as a function of temperature, allowing to derive the enthalpy and the entropy of the electrochemical reaction. The kinetics of the discharge has been thorough-fully measured and compared to the mass transport data recently obtained in our laboratory by using radiotracers. This has given a clear explanation of the mechanism of mass transport inside the polymer.





Autor: F. Bénière D. Boils H. Cánepa J. Franco A. Le Corre J. Louboutin

Fuente: https://hal.archives-ouvertes.fr/



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