New electrode materials derived from polyquinonic ionic compounds and their use in electrochemical generators

A redox compound having at least one state of oxidation state represented by the general formula:

• 18
• wherein
• M+ represents an alkaline metallic cation, an alkaline-earth cation, a transition metal cation, a rare earth cation, an organometallic cation, an organic cation of the “nium” type, a repetitive unit of a cationic oxidized conjugated polymer, or a monomeric or polymeric cation optionally having a redox character;
• X is oxygen, NCN, or C(CN)2;
• Z is C—Y or N;
• Y represents oxygen, sulfur, NCN, —C(CN)2, with the proviso that when Y is sulfur and n is ≦4, then X is oxygen;
• R1 is absent, O, S, NH, —(C═C)r—, —(W═W)r— wherein W is independently CR6 or N;
• r varies between 1 and 12;
• and R6 is H, halogen, CN, or C1-12 alkyl, C2-12 alkenyl or C6-14 aryl optionally having one or more substituents oxa, aza or thia;
• and wherein 2 R6 groups can be bonded to form a cycle comprising from 3 to 7 members;
• R2 and R3 are the same or different and are absent, a carbonated divalent radical, optionally substituted with aza, oxa or thia;
• q varies between 0 et p;
• p varies between 1 and 5;
• n varies between 1 and 104;
• and
• wherein two of R1, R2 and R3 can be bonded together to form a cycle comprising 3 to 7 members.