Eur. Phys. J. E (2006) 19: 471-476
https://doi.org/10.1140/epje/i2005-10076-8

Regular Article

Preparation and characterization of (PVP + NaClO₄) electrolytes for battery applications

Institute of Materials Science and Engineering, Wuhan University of Technology, 430-070, Wuhan, PRC

^* e-mail: chenw@mail.wut.edu.cn;

Received: 28 June 2005
Accepted: 11 February 2006
Published online: 10 April 2006

Abstract

A sodium ion-conducting polymer electrolyte based on polyvinyl pyrrolidone (PVP) complexed with NaClO₄ was prepared using the solution-cast technique. The cathode film of V₂O₅ xerogel modified with polyvinyl pyrrolidone was prepared using the sol-gel method. Investigations were conducted using X-ray diffractometry (XRD), Fourier transformation infrared (FT-IR) spectroscopy. The ionic conductivity and transference number measurements were performed to characterize the polymer electrolyte for battery applications. The transference number data indicated that the conducting species in these electrolytes are the anions. Using the electrolyte, electrochemical cells with a configuration Na/(PVP + NaClO₄)/V₂O₅ modified by (PVP) were fabricated and their discharge profiles studied.