The electrochemical performance of polythiophene synthesized by chemical method as the polymer battery electrode

Polythiophene (Pth) powder with chemical polymerization has been prepared and the electrochemical properties of Li//Pth cell with variable contents of conductor and applied currents are investigated. This system has a plateau region around redox peaks position and is increased and decreased sharply below ∼3 V during charge and discharge processes. The charge and discharge profiles of Li//Pth cell are similar with the case of transition metal oxide electrode. Although the specific capacity of Li//Pth system is relatively small, this system can be suitable in the power source device for high voltage since the average voltage is above ∼3.6 V.