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.

The disclosed technology relates generally to devices comprising conductive polymers and more particularly to electrochemical devices comprising self-compensating conductive polymers. In one aspect, electrochemical energy storage device comprises a negative electrode comprising an active material including a redox-active polymer. The device additionally comprises a positive electrode comprising an active material including a redox-active polymer. The device further comprises an electrolyte material interposed between the negative electrode and positive electrode and configured to conduct mobile counterions therethrough between the negative electrode and positive electrode. At least one of the negative electrode redox-active polymer and the positive electrode redox-active polymer comprises a zwitterionic polymer unit configured to reversibly switch between a zwitterionic state in which the zwitterionic polymer unit has first and second charge centers having opposite charge states that compensate each other, and a non-zwitterionic state in which the zwitterionic polymer unit has one of the first and second charge centers whose charge state is compensated by mobile counterions.

A ion-conductive fused-ring quinone polymer includes recurring units of formula (1) and/or (2) below ##STR00001##
wherein each X is independently a single bond or a divalent group, and A.sup.1 and A.sup.2 are each independently an aromatic hydrocarbon ring or an oxygen atom or sulfur atom-containing aromatic heterocycle that forms together with two carbon atoms on a benzoquinone skeleton. This polymer is a material having charge-storing properties which, when used as an electrode active material, is capable of providing a high-performance battery possessing high capacity, high rate characteristics and high cycle characteristics.

A polymer material for a lithium secondary battery having ionic conductivity and electronic conductivity at the same time, and a method for preparing the same. The polymer material includes a polythiophene-based polymer and a conductive polymer, and the polymer material may be formed by forming a polythiophene-based polymer, forming a conductive polymer, and heat-treating the polythiophene-based polymer and the conductive polymer.

The present disclosure relates to an all-solid-state battery having an anode layer including a solid electrolyte metal-organic framework; a solid electrolyte layer disposed on the anode layer; and a cathode layer disposed on the solid electrolyte layer. The all-solid-state battery may further include a lithium layer interposed between the anode layer and the solid electrolyte layer.

Organic redox-active polymer-based electrodes for electrochemical cells and electrochemical cells (e.g., aqueous electrochemical cells) comprising them are presented herein. Additionally, methods of preparation of the same are presented.

According to an embodiment of the present invention, the performance of a positive electrode host material for a lithium-sulfur battery can be optimized to solve the problems of low conductivity of sulfur as an energy storage material and volume expansion during charge and discharge, and as a negative electrode material, a transition metal phthalocyanine polymer can be coated on the surface of a carbon fiber current collector through polymerization, solving the low lithium ion affinity of the carbon fiber current collector.

The problem addressed was that of providing novel polymers which are preparable with a low level of complexity, with the possibility of controlled influence on the physicochemical properties thereof within wide limits in the course of synthesis, and which are usable as active media in electrical charge storage elements for high storage capacity, long lifetime and stable charging/discharging plateaus.

9,10-Bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene polymers consisting of an oligomeric or polymeric compound of the general formula I have been found.

##STR00001##

Provided is a polythiophene derivative including a repeating unit represented by general formula (1) below.

##STR00001##

In general formula (1), Z represents a group of atoms forming a 5- through 9-membered heterocycle containing a chalcogen element as a ring member. When the group of atoms contains a plurality of chalcogen elements, the kinds of the chalcogen elements may be the same or different. Ar represents an aromatic ring or aromatic heterocycle that may contain a substituent. n represents a natural number of 2 or greater. m represents 0 or a natural number of 2 or greater.

An electrolyte solution and a flow cell battery are included herein. The electrolyte solution generally includes a electrolyte solution including one or more class A quat halides. The flow cell battery includes an electrolyte solution including one or more class A quat halides.