Use of thianthrene-containing polymers as a charge store

A redox-active electrode material for electrical charge storage, comprising:

• a polymer P which comprises n mutually joined repeat units of the chemical structure (I)
• wherein n is an integer ≥4,
• wherein m is an integer ≥0,
• wherein the repeat units of the chemical structure (I) within the polymer P are the same or at least partly different from one another,
• wherein the repeat units of the chemical structure (I) within the polymer P are joined to one another in such a way that the bond identified by “*” in a particular repeat unit is joined to the bond identified by “**” in an adjacent repeat unit,
• wherein RA, RB, RC, RD, RE, RF, RG, R1, R2, R3, R4, R5, R6 , R7 radicals are each independently selected from the group consisting of hydrogen, —NO2, —CN, -halogen, —COOR8, —C(═O)NHR9, —NR10R11, —OR12, —SR13, —OP(═O)(O−(Mz+)1/z)2, —OP(═O)(OR14)O−(Mz+)1/z, —OP(═O)(OR15)(OR16), —S(O)2O−(Mz+)1/z, —S(O)2OR17, substituted or unsubstituted (hetero)aromatic radical, and substituted or unsubstituted aliphatic radical optionally comprising at least one group selected from the group consisting of ether, thioether, amino ether, carbonyl, carboxylic ester, sulphonic ester, and phosphoric ester,
• wherein R8, R9, R10, R11, R12, R13, R14, R15, R16, R17 are each independently selected from the group consisting of hydrogen, substituted or unsubstituted (hetero)aromatic radical, and substituted or unsubstituted aliphatic radical optionally comprising at least one group selected from the group consisting of ether, thioether, amino ether, carbonyl, carboxylic ester, sulphonic ester, and phosphoric ester,
• wherein Mz+ is selected from the group consisting of metallic cation, and organic cation,
• wherein z indicates the number of positive charges of Mz+,
• wherein at least two radicals in ortho positions to one another among the R1, R2, R3 radicals and/or at least two radicals in ortho positions to one another among the R4, R5, R6, R7 radicals may each also be bridged by at least one substituted or unsubstituted (hetero)aromatic ring or by a substituted or unsubstituted aliphatic ring optionally comprising at least one group selected from the group consisting of ether, thioether, amino ether, carbonyl, carboxylic ester, sulphonic ester, and phosphoric ester,
• wherein X is selected from the group consisting of &-(X1)p1-[C═Y1]q1-(X2)p2-B -(X3)p3-[C═Y2]q2-(X4)p4-&&, &-(X5)p5-(C═Y3)q3-(X6)p6-&&, and direct bond,
• wherein,
• p1, q1, p2 are each 0 or 1, with the proviso that it is not simultaneously true that p1=p2=1 and q1=0,
• p3, q2, p4 are each 0 or 1, with the proviso that it is not simultaneously true that p3=p4=1 and q2=0,
• p5, q3, p6 are each 0 or 1, with the proviso that it is not simultaneously true that p5=p6=1 and q3=0, and that, when p5=1 and q3=0, p6=0, and that it is not true that p5=q3=p6=0,
• Y1, Y2, Y3 are each independently selected from O, and S,
• X1, X2, X3, X4, X5, X6 are each independently selected from —O—, —S—, —NH—, and —Nalkyl-,
• B is a divalent substituted or unsubstituted (hetero)aromatic radical or a divalent substituted or unsubstituted aliphatic radical optionally comprising at least one group selected from the group consisting of ether, thioether, amino ether, carbonyl, carboxylic ester, sulphonic ester, and phosphoric ester,
• “&” denotes the bond to the carbon atom joined to RA, and
• “&&” denotes the bond to a thianthrene ring.