University of Michigan

Vinazene, Inc.

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Paul G Rasmussen

Richard Graham Lawton

Sarah E Reybuck

David M Johnson

Levi T Thompson

Saemin Choi

Gunnar Walther

Binay Prasad

Nagash A Clarke

Burghardt Kloeden

Taeseok Jang

In accordance with an embodiment of the disclosure, an asymmetric supercapacitor includes a first active material with a high hydrogen over-potential and a second active material with a high oxygen over-potential. The first active material is based on a nitride, an oxynitride, a carbide, an oxycarbide, a boride, or an oxyboride of a metal selected from Groups III, IV, V, VI, and VII of the Periodic Table.

High performance transition metal carbide and nitride and boride based asymmetric supercapacitors

This invention discloses an electrochemical device having a multilayer structure and methods for making such a device. Specifically, this invention discloses a multilayer electrochemical device having nano-sized cobalt oxyhydroxide conductive agents and/or active materials within the polymer layers.

Electrochemical device electrode including cobalt oxyhydroxide

In accordance with an embodiment of the disclosure, a method of making a supercapacitor includes impregnating a foam electrode substrate with an active material precursor, wherein the foam electrode substrate includes a plurality of pores and the active material precursor is dispersed into the pores. The method further includes reacting the active material precursor infiltrated foam substrate with a reductant under conditions sufficient to convert the active material precursor to an active material, wherein the active material is based on a nitride, an oxynitride, a carbide, or an oxycarbide of a metal selected from Groups III, IV, V, VI, or VII of the Periodic Table.

Transition metal carbide or nitride or boride based supercapacitors with metal foam electrode substrate

A process to manufacture substituted tetracyano-hexaazatricyclics with the substitutions occurring at the 9 and 10 hydrogens. The process begins with 2,3-dichloro-5,6-dicyanopyrazine, which is reacted to form the desired tetracyano-hexaazatricyclic. Different process embodiments enable different reaction paths to the desired tetracyano-hexaazatricyclic. Different tetracyano-hexaazatricyclic embodiments include bis(2-methoxyethyl)-2,3,6,7-tetracyano-1,4,5,8,9,10-hexazaanthracene and bis(2-methoxyethoxyethyl)-2,3,6,7-tetracyano-1,4,5,8,9,10-hexazaanthracene.

Process for manufacturing bis(2-methoxyethyl)-2,3,6,7-tetracyano-1,4,5,8,9,10-hexazaanthracene

An electrical storage device utilizing a pyrazine-based cyanoazacarbon or pyrazine-based cyanoazacarbon polymer as a redox active material which can undergo both oxidation and reduction. The device has an ion selective barrier with a cathode side and an anode side; a cathode compartment which is functionally attached to the cathode side of the ion selective barrier and contains a mixture of pyrazine-based cyanoazacarbons, solvent, and positive ions of pyrazine-based cyanoazacarbons; an anode compartment which is functionally attached to the anode side of the ion selective barrier and contains a mixture of pyrazine-based cyanoazacarbons, solvent, and negative ions of pyrazine-based cyanoazacarbons; a cathode which is electrically connected to the cathode compartment; and an anode which is electrically connected to the anode compartment. In one embodiment, the electrical storage device has an electrolyte reservoir which uses an asymmetric membrane design to transfer electrical charge between an anode section and cathode section. For slow redox, the electrical storage device functions as a rechargeable battery. For rapid redox, the electrical storage device functions as a supercapacitor.

Electrical storage device utilizing pyrazine-based cyanoazacarbons and polymers derived therefrom

A copolymer comprising imidazole ring units having nitrogen at the 1 and 3 positions of the ring; a carbon at each of the 2, 4 and 5 positions of the ring; and radical substituents G1 and G2 carried at the 4 and 5 positions together with a non-imidazole monomer capable of undergoing addition polymerization. In the imidazole, G1 and G2 are each independently selected from cyano, substituents derived from cyano, and substituents which replace cyano. The invention also provides a method for using the co-polymers as a coupling/activator for synthon synthesis.

Copolymers derived from vinyl dicyanoimidazoles and other monomers

In one embodiment, the invention provides a polymer comprising imidazole ring units having nitrogen at the 1 and 3 positions of the ring; a carbon at each of the 2, 4 and 5 positions of the ring; and radical substituents G1 and G2 carried at the 4 and 5 positions. G1 and G2 are each independently selected from cyano, substituents derived from cyano, and substituents which replace cyano. The polymers formed by at least two of the cyclic imidazole units. In another embodiment, the invention provides new imidazole compounds usable as monomers to form the polymers. In still another embodiment, the invention provides a method for using the polymers as a coupling/activator for synthon synthesis.

Imidazole containing compounds having relatively low hydrogen content and relatively high nitrogen content and polymers and copolymers formed therefrom

Cyclic imidazole compounds having relatively low hydrogen content and relatively high nitrogen content and polymers and copolymers formed therefrom

Cylic imidazole compounds having relatively low hydrogen content and

The invention provides a compound having conjugated double bonds in an acyclic structure formed by Schiff base reaction between an unsaturated aldehyde (RCHO) and diaminomaleonitrile (DE). The compound is a monoalkylated DAMN derivative having one unit of diaminomaleonitrile for every unit of alkyl (RC) derived from the unsaturated aldehyde. The invention also provides a polymer having an acyclic structure and containing monomeric units formed by Schiff base reaction between an unsaturated aldehyde and a diaminomaleonitrile.

Growing community of inventors

Ann Arbor, MI, United States of America

Paul G Rasmussen