COMPOSITE MATERIAL, ELECTRODE, METHOD TO PRODUCE THE MATERIAL AND THE ELECTRODE AND ELECTROCHEMICAL CELL COMPRISING THE ELECTRODE

Disclosed is a composite material comprising an electrochemically active organic material and an electrochemically active inorganic material. The organic material contains or is composed of subunits according to general formulaes (I) and/or (II) wherein in these structures (I) and (II) n is an integer not smaller than 2, Y represents an amide group (-NH-CO- or -CO-NH-), an ester group (-O-CO- or -CO-O-) or a urethane group (-NH-CO-O- or -O-CO-NH-), R 1 , R 2 , R 3 and R 4 each independently represent H, alkyl (preferably-CH 3 , -C 2 H 5 ), alkoxy-(preferably -OCH 3 , -OC 2 H 5 ), -halogen or -CN, Ar 1 and Ar 4 independently represent a bridging aryl group, Ar 2 and Ar 3 independently represent a non-bridging aryl group, and R 5 is a bridging alkyl, alkene or aryl group. The inorganic particulate material comprises or consists of particles of a carbon material, a metal oxide, or a mixture comprising or consisting of these particles. Further, an electrode and an electrochemical element comprising the electrode are disclosed, as well as methods to produce the composite material and the electrode.