Electrochemical behaviors of polyaniline/poly (aniline-2,5-disulfonic acid) composites

Polyaniline/anionic-polymer composites are important for battery applicatio ns due to the cation-inserting property. Electroactive poly-aniline-2,5-dis ulfonic acid (poly-ADSA) was used instead of conventional electroinactive s ulfonated polymer. Polyaniline/poly-ADSA composite was prepared by electroc hemical dopant exchange. The redox charge of resulting composite increased up to 120 % of the initial value. The specific capacity was determined to b e 98 Ah/kg in aqueous solution and 70 Ah/kg in propylene carbonate solution .