ELECTROCHEMISTRY OF LIQUIDS VS SOLIDS - POLYMER ELECTROLYTES

The electrochemistry of polymers is reviewed, in comparison with solid or liquid electrolytes. It is shown that the coordination chemistry l eading to the formation of conductive complexes is very general with s pecific interactions (e.g. transition metal-nitrogen). While the trans ference numbers are still the subject of controversies, a coordination chemistry akin to that of water for PEO or ammonia with PEI exists. A lso, the possibility of redox conduction, through microphase separatio n leads to mixed conductivity (ions + electrons).