Electrically conductive composition and elements containing solubilized polyaniline complex and solvent mixture

An electrically conductive coating composition comprising a solution of:

• a) a complex of a polymeric polyaniline and a protonic acid that has a counter-ion that imparts conductivity to said composition,
• said complex being dissolved in a first solvent, that has a Hansen polar solubility parameter of from 13 to about 17 MPa.sup.1/2, and a Hansen hydrogen bonding solubility parameter of from about 5 to about 14 MPa.sup.1/2, and
• b) a film-forming binder dissolved in a second solvent, wherein said first and second solvents are different,
• provided that the total solids in said composition is less than or equal to about 10 weight % of the total composition, and the weight ratio of said binder to said complex is at least about 2:1,
• wherein said first solvent is dimethylsoulfoxide, a .gamma.-butyrolactone/lower alcohol blend, a propylene carbonate/lower alcohol blend, an ethylene carbonate/lower alcohol blend, a propylene carbonate/ethylene carbonate/lower alcohol blend, or a mixture thereof, wherein said lower alcohol has up to 4 carbon atoms,
• said second solvent is water, a chlorinated solvent, or a mixture of a chlorinated solvent with a lower alcohol or acetone, wherein said lower alcohol has up to 4 carbon atoms,
• the weight ratio of said second solvent to said first solvent is from about 5:1 to about 19:1, and
• said composition provides a dried conductive layer having a resistivity of less than or equal to 10.9 log ohms/square.