Hybrid polymer/inorganic solid chloride ion conductors
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Perovskite materials were synthesized using an autoclave melting method and then investigated using powder X-ray diffraction and electrochemical impedance spectroscopy. Promising conductivity of up to 10-4 S cm-1 at room temperature in CsSnCl3 and 10-5 S cm-1 at room temperature in CsPbCl3 was observed, in accordance with literature. Then, hybrid solid polymer electrolytes were made using a solution casting method. The effect of the concentration of both perovskites in the hybrid films was found to be small as no increase in conductivity was found compared to polymer films containing no perovskite. However, these samples exhibited favourable flexibility and softness, even compared to purely organic films. These materials are promising candidates for chloride solid-state batteries and could enable a simple, continuous assembly-line production process, although further investigation is necessary.