Conductive behaviour of lithium ions in polyacrylonitrile

• Published in: Journal of power sources Vol. 62; no. 1; pp. 89 - 93
• Main Authors: Yang, C.R., Perng, J.T., Wang, Y.Y., Wan, C.C.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.09.1996; Elsevier Sequoia
• Subjects: Applied sciences; Conductivity; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Lithium batteries; Solid polymer electrolytes; Conductivity; Lithium batteries; Solid polymer electrolytes; Lithium Perchlorates; Ionic conductivity; Temperature effect; Polymer solid electrolyte; Secondary cell; Diffraction pattern; Pressure effect; Acrylonitrile polymer; Transport coefficient; Battery; Concentration effect; Infrared spectrum; Lithium ion; Electrical characteristic
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/S0378-7753(96)02414-7

The conductivity of lithium ions in polyacrylonitrile (PAN) is examined. Using the d.c. polarization method, the electric transport coefficient was observed to be less than 0.05. X-ray diffraction analysis confirms that PAN-LiClO 4 has an amorphous structure. Fourier-transform infrared spectroscopy results indicate that Li + ions form bonds not only with the C≡N groups of the PAN, but also with CO groups of the dimethylformamide. The relationship between conductivity and temperature suggests that the conduction of Li + ions in PAN is achieved through the polymer backbone's segmental motion. Finally, the activation energy of PAN(LiClO 4) 0.2 is estimated to be 86 kJ/mol.