A process for the production of a first electrode in a lithium-sulfur electrochemical cell, - wherein a substrate is superimposed with a liquid composition comprising a) at least one cationic polythiophene; b) at least one polymeric counterion; c) elemental sulfur; d) at least one solvent having a boiling point of 80° or more, wherein the at least one solvent d) is water; e) at least one conductivity improving agent selected from the group consisting of a monoalkylene glycol, a dialkylene glykol, a trialkylene glycol, a tetraalkylene glycol, a mono- or diether of these mono-, di-, tri- oder tetraalkylene glycols, a lactone group-comprising compound, a amide group- or lactam group-comprising compound, a sulphone or sulphoxide, a sugar or sugar derivative, a sugar alcohol or a furan derivative, glycerol, diglycerol, triglycerol, tetraglycerol or a mixture of at least two thereof; 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; - and wherein subsequently at least a part of solvent d) is removed, thereby obtaining a substrate that is superimposed with an electrically conductive layer; wherein the liquid composition comprises less than 5 wt.-%, based on the total weight of the liquid composition, of a particulate material based on elemental carbon. - wherein a substrate is superimposed with a liquid composition comprising a) at least one cationic polythiophene; b) at least one polymeric counterion; c) elemental sulfur; d) at least one solvent having a boiling point of 80° or more, wherein the at least one solvent d) is water; e) at least one conductivity improving agent selected from the group consisting of a monoalkylene glycol, a dialkylene glykol, a trialkylene glycol, a tetraalkylene glycol, a mono- or diether of these mono-, di-, tri- oder tetraalkylene glycols, a lactone group-comprising compound, a amide group- or lactam group-comprising compound, a sulphone or sulphoxide, a sugar or sugar derivative, a sugar alcohol or a furan derivative, glycerol, diglycerol, triglycerol, tetraglycerol or a mixture of at least two thereof; 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; a) at least one cationic polythiophene; b) at least one polymeric counterion; c) elemental sulfur; d) at least one solvent having a boiling point of 80° or more, wherein the at least one solvent d) is water; e) at least one conductivity improving agent selected from the group consisting of a monoalkylene glycol, a dialkylene glykol, a trialkylene glycol, a tetraalkylene glycol, a mono- or diether of these mono-, di-, tri- oder tetraalkylene glycols, a lactone group-comprising compound, a amide group- or lactam group-comprising compound, a sulphone or sulphoxide, a sugar or sugar derivative, a sugar alcohol or a furan derivative, glycerol, diglycerol, triglycerol, tetraglycerol or a mixture of at least two thereof; - and wherein subsequently at least a part of solvent d) is removed, thereby obtaining a substrate that is superimposed with an electrically conductive layer;