Evonik Degussa Gmbh

Evonik Operations Gmbh

Bernhard Haeupler

Ulrich Sigmar Schubert

Andreas Wild

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. These secondary batteries are especially notable for high cell voltages, and simple and scalable processing and production methods (for example by means of screen printing).

Use of certain polymers as a charge store

The present invention relates to polymers and to the use thereof in the form of active electrode material or in an electrode slurry as electrical charge storage means, the electrical charge storage means especially being secondary batteries. The secondary batteries are especially notable for high cell voltages, a small drop in capacity even on undergoing several charging and discharging cycles, and simple and scalable processing and production methods (for example by means of screen printing).

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. 

9,10-Bis(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene polymers and use thereof

Disclosed is an oligomeric or polymeric compound comprising at least two structural units of formula (I) wherein Ar is a carbocyclic aromatic radical or a heterocyclic aromatic radical with the two carbonyl carbon atoms being attached to two ring carbon atoms of the Ar group forming together with the imide-nitrogen atom a five-membered or a six-membered ring X is a divalent group selected from &#x2014;CRR&#x2014;, &#x2014;CO&#x2014;, &#x2014;SiRR&#x2014;, &#x2014;P(O)R&#x2014;, &#x2014;P(O)(OR)&#x2014;, &#x2014;PR&#x2014;, &#x2014;P(OR)&#x2014;, &#x2014;S(O)&#x2014; or &#x2014;S(O)&#x2014;. Rto Rindependently of one another are hydrogen, alkyl, cycloalkyl, aryl or heteroaryl groups, Ris a divalent hydrocarbon group or a covalent bond, and R, Rand Rindependently of one another are hydrogen or C-Calkyl or Rand Ror Rand Rtogether with the carbon atoms to which they are attached form a cycloaliphatic ring or a bicyclic aliphatic system The oligomeric or polymeric compound comprising units of formula (I) of the invention can be used as redox-active material in storage means for electric energy, for example in batteries, redox-flow cells, fuel cells or capacitors. 

Electroactive polymers, manufacturing process thereof, electrode and use thereof

Novel tetracyanoanthraquinodimethane polymers and use thereof. 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. Tetracyanoanthraquinodimethane polymers consisting of an oligomeric or polymeric compound of the general formula I have been found. 

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Erlangen, Germany

Bernhard Haeupler