Electroactive high storage capacity polyacetylene-co-polysulfur materials and electrolytic cells containing same
AssigneeMoltech Corporation
InventorsTerje A. Skotheim, Boris Trofimov, Anastasiya Grigorevna Malkina, Igor P. Kovaley
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Abstract
The present invention relates to novel electroactive energy storing organic polymers, which organic polymers, in their oxidized or fully charged state, comprise polysulfur components. Also provided are electrochemical cells comprising composite cathodes utilizing such polymers, and methods of making such composite cathodes and cells.
Claims125
An electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein m is the same or different at each occurrence and is an integer greater than 2, and one or more conjugated polymer backbone segments;
- and
- wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer.
An electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2.
An electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2.
An electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer.
An electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer.
An electric current producing cell comprising:
- (a) an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IIA of the Periodic Table of elements;
- (b) a cathode comprising an electrochemically active organic polymer having carbon and sulfur atoms, which polymer in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein m is the same or different at each occurrence and is an integer greater than 2, and one or more conjugated polymer backbone segments;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer;
- and
- (c) an electrolyte.
An electric current producing cell comprising:
- (a) an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IIA of the Periodic Table of elements;
- (b) a cathode comprising an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and
- (c) an electrolyte.
An electric current producing cell comprising:
- (a) an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IA of the Periodic Table of elements;
- (b) a cathode comprising an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and
- (c) an electrolyte.
An electric current producing cell comprising:
- (a) an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IIA of the Periodic Table of elements;
- (b) a cathode comprising an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer;
- and
- (c) an electrolyte.
An electric current producing cell comprising:
- (a) an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IIA of the Periodic Table of elements;
- (b) a cathode comprising an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise a structural moiety of formula:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer;
- and
- (c) an electrolyte.
A method of forming a composite cathode, which method comprises the step of:
- coating a substrate with a mixture comprising an amount of an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties —Sm—, wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer.
A method of forming a composite cathode, which method comprises the step of:
- coating a substrate with a mixture comprising an amount of an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise one or more structural moieties of formulae:
- wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer.
A method of forming an electric current producing cell, said method comprising the steps of:
- (a) providing an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IIA of the Periodic Table of the elements;
- (b) providing a cathode comprising of an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer;
- and
- (c) enclosing an electrolyte between said anode and said cathode.
A method of forming an electric current producing cell, said method comprising the steps of:
- (a) providing an anode comprising a metal selected from the group consisting of metals belonging to Group IA and Group IIA of the Periodic Table of the elements;
- (b) providing a cathode comprising of an electrochemically active organic polymer having carbon and sulfur atoms, which polymer, in its oxidized or fully charged state, comprises one or more polysulfur moieties, —Sm—, wherein one or more of said polysulfur moieties comprise one or more structural moieties of formulae:
- and wherein m is the same or different at each occurrence and is an integer greater than 2;
- and wherein said one or more polysulfur moieties are covalently bonded by both terminal sulfur atoms to said polymer;
- and
- (c) enclosing an electrolyte between said anode and said cathode.
Dependencies are inferred from the claim text.