Abstract
A new conducting polymer, poly- o-methylaniline, used as a cathode-active active material in rechargeable batteries, is very stable in aqueous solution. The cell, consisting of poly- o-methylaniline, Zn and 1.5 M ZnCl 2 (pH 2.68), had an open-circuit voltage of 1.3 V. The experimental capacity and energy density based on the weight of polymer employed in constructing the cell are 106.6 Ah kg −1 and 110.3 Wh kg −1 at a constant discharge current of 0.25 mA/cm 2 (average discharge voltage 1.04 V). The coulombic efficiency of poly- o-methylaniline is 100% at a constant current of 0.25 mA/cm 2.
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