Patent ID: 7879492
Filing Date: 2011-02-01
Classification: H01M,Y02E

Abstract:
1. A redox compound having at least one state of oxidation, wherein said compound is selected from the group consisting of: a rhodizonic acid salt represented by formula (I): a rufigallic acid salt represented by formula (II): an elagic acid salt represented by formula (III): a salt of 1,2-dimercaptocyclobytenedione (dithiosquarique) acid represented by formula (IV); a salt of 1,5 dihydropyrimido[5,4d]pyrimidine 2,4,6,8(3H,7H)tetrone represented by formula (V): a salt of a dicarboxylic acid comprising groups linked with conjugated segments corresponding to formula (VI): wherein L is independently CR a salt of formula (VII): a salt of formula (VIII): a salt of formula (IX): a salt of formula (X): a salt of formula (XI) : a salt of formula (XII): a salt of formula (XIII): a salt of formula (XIV): a salt of formula (XV) : a salt of formula (XVI) : a salt of formula (XVII) : oxidation compounds of aforesaid salts of formulae (I) to (XVII); being understood that: in aforesaid formulae (I) to (XVII), the oxygen atoms with a double bond can be replaced with a group —NCN or —C(CN) wherein the compound is used as a negative electrode component in electrochemical generators when redox couples are comprised between 0.1 and 2V vs. Li