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Scientific
activities of the Solid State Ionics Division:
The main area of scientific activity of the division
is physics of superionic conductors, i.e. solid materials exhibiting
high ionic conductivity approaching 0,1 S/cm. Electrical properties of superionic conductors
and their correlations with composition, crystal structure and other
physical properties are investigated. Prospects of applications of these materials
in electrochemical cells for energy conversion and storage or
in chemical sensors is studied. The scope of th research includes also preparation technologies of new superionic conductors under study.
The division consists of two scientific groups:
- Crystalline Superionic Conductors Group (W. Bogusz,
F. Krok, J.R.Dygas, P.Kurek, M. Malys, M.Marzantowicz, W.Wróbel and PhD students:M.Holdynski, A.Łasińska, M.Struzik) has investigated such crystalline materials
as cationic lithium and sodium and anionic, oxygen ion conductors based on Bi2O3
- mainly BIMEVOXes. Another topic of interest is polymer electrolytes based on PEO. The studies are focused on the relation between
ionic transport and crystal and defect structure of those materials.
- Amorphous Superionic Conductors Group (W. Jakubowski, J.E.Garbarczyk,
M. Wasiucionek, J. L. Nowiński, B. Wnętrzewski and P. Jóźwiak)
investigates highly conductive glassy, composite, glassy-nanocrystalline and gel materials. Among
investigated conductors there are silver superionic glasses of
the AgI-Ag2O-V2O5 system, proton
conducting glasses of
H-UO2-IO6-H2O system, mixed ionic-electronic
conducting glasses of the AgI-Ag2O-V2O5-P2O5
system, lithium conductive gels based on SiO2.
The both groups investigate also intercalated compounds
with mixed electronic-ionic conductivity.
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