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Electroconductivity of Solid Electrolytes in the Systems K3–2x M x PO4 (M = Ca, Sr, Ba)

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Abstract

Solid electrolytes K3 – 2x M x PO4 (M = Ca, Sr, Ba) are synthesized and the temperature and concentration dependences of their electroconductivity are studied. Adding calcium and strontium stabilizes the high-temperature β-form of K3PO4 at room temperature, while barium-containing solid electrolytes undergo an eutectoid decomposition below 430°C. Maximum electroconductivity is exhibited by K3 – 2x Sr x PO4 (7.1 × 10–3 and 1.25 × 10–1 S cm–1 at 300 and 700°C).

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Authors and Affiliations

  1. Institute of High-Temperature Electrochemistry, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 22, Yekaterinburg, 620219, Russia

    E. I. Burmakin & G. Sh. Shekhtman

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  1. E. I. Burmakin
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  2. G. Sh. Shekhtman
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Burmakin, E.I., Shekhtman, G.S. Electroconductivity of Solid Electrolytes in the Systems K3–2x M x PO4 (M = Ca, Sr, Ba). Russian Journal of Electrochemistry 40, 208–211 (2004). https://doi.org/10.1023/B:RUEL.0000016337.25964.86

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  • DOI: https://doi.org/10.1023/B:RUEL.0000016337.25964.86

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