Powermers Inc.

Powermers Smart Industries Inc.

Mikhail Pavlovich Karushev

Semyon Kogan

Irina Anatolievna Chepurnaya

Svetlana A Belous

Alexander Mikhailovich Timonov

Tatyana S Lavrova

Alexandr Mikhailovich Timonov

Yulia Alexandrovna Polozhentseva

Darya Olegovna Savenko

Evgenia Alexandrovna Smirnova

Tatiana S Lavrova

Irina A Chepurnaia

Aleksandr M Timonov

Evgenia Alexandrovna Smimova

Irina Anatolievna Chepumaya

Irina A Chepurnaya

The invention is related to a metal-air current source and to its cathode. The cathode includes a base made of porous current-conducting material, permeable for molecular oxygen, to whose operating surface is applied a polymer complex compound of transition metal with the Schiff base, having a stack structure, in which the separate fragments of the said polymer compound are connected to each other through the donor-acceptor interaction, for example the compound of poly-[M(R,R'-Salen)], poly-[M(R,R′-Saltmen)] or poly-[M(R,R′-Salphen)] type.

Cathode for metal-air current sources and metal-air current source with such cathode

The invention relates to electrochemical current sources, more particularly to metal-air current sources, and even more particularly to lithium-air current sources and their electrodes. A cathode comprises a base made of a porous electrically conducting material that is permeable to molecular oxygen, the working surface of which has a copolymer applied thereto, which is produced by the copolymerization of a monomeric transition metal coordination complex having a Schiff base and a thiophene group monomer. The monomeric transition metal coordination complex having a Schiff base can be, for example, a compound of the [M(R,R-Salen)], [M(R,R-Saltmen)] or [M(R,R-Salphen)] type, and the thiophene group monomer can be a compound selected from a thiophene group consisting of 3-alkylthiophenes, 3,4-dialkylthiophenes, 3,4-ethylenedioxythiophene or combinations thereof. A current source comprises the described cathode and an anode made from an active metal, in particular lithium, wherein the cathode and the anode are separated by an electrolyte containing ions of the metal from which the anode is made. It has been established that in this system, the copolymer exhibits the properties of an effective catalyst. The technical result is an increase in the specific energy, specific power and number of charge and discharge cycles of a metal-air current source.

Cathode for metal-air current sources metal-air current sources containing the same

A method for creating a metal-carbon composite. In one embodiment, the method includes the steps of providing a polymer Schiff base transition metalfilmcomplexprecursorfilmhaving a chemical structure of the formula [M(Schiff)]and a recurring unit and a transition metal selected from the group consisting of nickel, palladium, platinum, cobalt, copper, iron; Schiff is a tetradentate Schiff base ligand selected from the group consisting of Salen (residue of bis(salicylaldehyde)-ethylenediamine), Saltmen (residue of bis(salicylaldehyde)-tetramethylethylenediamine, Salphen (residue of bis-(salicylaldehyde)-o-phenylenediamine), a substituent in a Schiff base is selected from the group consisting of H&#x2014;, and carbon-containing substituents, preferably CH&#x2014;, CH&#x2014;, CHO&#x2014;, CHO&#x2014;, and Y is a bridge in a Schiff base depositing the polymer Schiff base transition metal precursor film onto a support substrate; and heating the polymer Schiff base transition metalcomplexprecursor film and support substrate in a furnace in an inert atmosphere.

Method of producing porous metal-carbon materials

The invention relates to electrochemical current sources, more particularly to metal-air current sources, and even more particularly to lithium-air current sources and their electrodes. A cathode comprises a base made of a porous electrically conducting material that is permeable to molecular oxygen, the working surface of which has a copolymer applied thereto, which is produced by the copolymerization of a monomeric transition metal coordination complex having a Schiff base and a thiophene group monomer. The monomeric transition metal coordination complex having a Schiff base can be, for example, a compound of the [M(R,R'-Salen)], [M(R,R&#x2032;-Saltmen)] or [M(R,R&#x2032;-Salphen)] type, and the thiophene group monomer can be a compound selected from a thiophene group consisting of 3-alkylthiophenes, 3,4-dialkylthiophenes, 3,4-ethylenedioxythiophene or combinations thereof. A current source comprises the described cathode and an anode made from an active metal, in particular lithium, wherein the cathode and the anode are separated by an electrolyte containing ions of the metal from which the anode is made. It has been established that in this system, the copolymer exhibits the properties of an effective catalyst. The technical result is an increase in the specific energy, specific power and number of charge and discharge cycles of a metal-air current source.

A method for creating a metal-carbon composite. In one embodiment, the method includes the steps of providing a polymer Schiff base transition metal film precursor having a chemical structure of the formula [M(Schiff)]and a recurring unit and a transition metal selected from the group consisting of nickel, palladium, platinum, cobalt, copper, iron; Schiff is a tetradentate Schiff base ligand selected from the group consisting of Salen (residue of bis(salicylaldehyde)-ethylenediamine), Saltmen (residue of bis(salicylaldehyde)-tetramethylethylenediamine, Salphen (residue of bis-(salicylaldehyde)-o-phenylenediamine), a substituent in a Schiff base is selected from the group consisting of H&#x2014;, and carbon-containing substituents, preferably CH&#x2014;, CH&#x2014;, CHO&#x2014;, CHO&#x2014;, and Y is a bridge in a Schiff base depositing the polymer Schiff base transition metal precursor film onto a support substrate; and heating the polymer Schiff base transition metal precursor film and support substrate in a furnace in an inert atmosphere.

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St. Petersburg, Russia

Mikhail Pavlovich Karushev