Ionic conduction in (PEO)nKCuxI1 + x complexes

✍ Scribed by S. Atchia; J.-P. Petit; J.-Y. Sanchez; M. Armand; D. Deroo

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 234 KB
• Volume: 37
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(92)80119-7

✦ Synopsis

We introduce a new family of solid polymer electrolytes where the Cu+ cation is coordinated with an anionic ligand I-, resulting in a complex carrying at least one negative charge. In the PEO,KCu,I, +* electrolyte, potassium iodide acts as a supporting electrolyte where copper cations Cu+ are carried as CuIi complex anions. The transport of Cu+ thus occurs via a vehicular mechanism. The conductivity of these. electrolytes is around 5 x 10e6 R-' cm-' at 40°C and the transference number of copper component has been found to be 0.4. Key work polymer electrolytes, conductivity, copper(I) complex, transference number.