USE OF PEDOT/PSS IN A CATHODE OF A LITHIUM-SULFUR ELECTROCHEMICAL CELL

摘要

The present invention relates to a liquid composition comprising
a) at least one cationic polythiophene;
b) at least one polymeric counterion;
c) sulfur;
d) at least one solvent having a boiling point of 80°C or more;
e) at least one conductivity improving agent;
wherein the liquid composition comprises less than 10 wt.-% of components having a boiling point of less than 80°C, based on the total weight of the liquid composition, and wherein the boiling point in each case is determined at a pressure of 1013 mbar. The present invention also relates to a powdered composition comprising components a), b) and c), wherein the cationic polythiophene and the at least one polymeric counterion are present in the form of a cationic polythiophene : polymeric counterion-complex, to a process for preparing a liquid or powdered composition, a liquid or powdered composition obtainable by this process, to a lithium sulfur electrochemical cell and to the use of the liquid or the powdered composition.