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

Patent metadata

Field	Value
Publication number	US-9722240-B2
Application number	US-79260710-A
Country	US
Kind code	B2
Filing date	Jun 2, 2010
Priority date	Dec 2, 1997
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

The present invention is concerned with novel compounds derived from polyquinonic ionic compounds and their use in electrochemical generators.

First claim

What is claimed is:

1. A redox electrode material comprising in whole or in part, a redox compound having at least one oxidation state, wherein said redox compound is selected from the group consisting of:
a rufigallic acid salt represented by the formula (II):

an elagic acid salt represented by the 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 the formula (V);

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 (XIII):

a salt of formula (XV):

a salt of formula (XVI):

a salt of formula (XVII):

oxidation compounds of aforesaid salts of formulae (II) to (XI), (XIII) and (XV) to (XVII); being understood that:
in aforesaid formulae (II) to (XI), (XIII) and (XV) to (XVII) M + represents an alkaline metallic cation, an alkaline-earth cation, a transition metal cation, a rare earth cation, an organometallic cation, an organic “onium” cation, a repetitive unit of a cationic oxidized conjugated polymer, or a monomeric or polymeric cation optionally having a redox character; and M + satisfies with formula n/pM p+ where n is the above mentioned number of cation atoms or molecules given for aforesaid salts and p is the valency of the above mentioned cation atoms or molecules; and
in aforesaid formulae (II) to (XI), (XIII) and (XV) to (XVII) the oxygen atoms with a double bond can be replaced with a group —NCN or —C(CN) 2 and oxygen anion O − can be replaces with a group N − —CN or C − —(CN) 2 .

2. The material according to claim 1 , further comprising at least one electronic conductor and at least one binder.

3. The material according to claim 2 wherein the electronic conductor comprises carbon black or graphite powder, and the binder comprises polytetrafluoroethylene, co- or ter-polymer of ethylene, propylene or a diene.

4. The material according to claim 1 characterized in that it can be used as a source of lithium to compensate for the inherent losses caused by the formation of passivation layers by the electrodes.

5. The material according to claim 4 comprising derivatives corresponding to the following redox anion:

Assignees

• Armand Michel
• Michot Christophe
• Ravet Nathalie
• Acep Inc
• Scient (Cnrs)
• Centre Nat De La Rech
• Univ Montreal

Inventors

• Armand Michel
• Michot Christophe
• Ravet Nathalie

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M4/137 Primary

  Electrodes based on electro-active polymers · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M2004/028

  Positive electrodes · CPC title

• H01M4/608

  containing heterocyclic rings · CPC title