Patents by Inventor Igor P. Kovalev
Igor P. Kovalev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240113320Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.Type: ApplicationFiled: June 30, 2023Publication date: April 4, 2024Applicant: Sion Power CorporationInventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T.S. Campbell, John A. Martens
-
Publication number: 20230317959Abstract: Electrochemical cells, and more specifically, release systems for the fabrication of electrochemical cells are described. The release layers described herein may be conductive release layers. In particular, conductive release layer arrangements, assemblies, methods and compositions that facilitate the fabrication of electrochemical cell components, such as electrodes, are presented. In some embodiments, methods of fabricating an electrode involve the use of a release layer to separate portions of the electrode from a carrier substrate on which the electrode was fabricated. For example, an intermediate electrode assembly may include, in sequence, an electroactive layer, an optional current collector layer, a conductive release layer, and a carrier substrate.Type: ApplicationFiled: September 4, 2020Publication date: October 5, 2023Applicant: Sion Power CorporationInventors: Igor P. Kovalev, Alexis Sheffield
-
Patent number: 11735761Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.Type: GrantFiled: August 4, 2021Date of Patent: August 22, 2023Assignee: Sion Power CorporationInventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T. S. Campbell, John A. Martens
-
Publication number: 20230261182Abstract: Articles and methods related to electrochemical cells and/or electrochemical cell components (such as electrodes) comprising species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or reaction products of such species are generally provided. The electrochemical cell may comprise an electrode (e.g., a cathode) comprising a protective layer comprising a species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or a reaction product thereof.Type: ApplicationFiled: April 26, 2023Publication date: August 17, 2023Applicant: Sion Power CorporationInventors: Igor P. Kovalev, Yuriy V. Mikhaylik
-
Patent number: 11705554Abstract: Articles and methods related to electrochemical cells and/or electrochemical cell components (such as electrodes) comprising species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or reaction products of such species are generally provided. The electrochemical cell may comprise an electrode (e.g., a cathode) comprising a protective layer comprising a species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or a reaction product thereof.Type: GrantFiled: October 1, 2021Date of Patent: July 18, 2023Assignee: Sion Power CorporationInventors: Igor P. Kovalev, Yuriy V. Mikhaylik
-
Patent number: 11705555Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries.Type: GrantFiled: July 12, 2017Date of Patent: July 18, 2023Assignee: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev
-
Publication number: 20230120877Abstract: Articles and methods including additives in electrochemical cells, are generally provided. As described herein, such electrochemical cells may comprise an anode, a cathode, an electrolyte, and optionally a separator. In some embodiments, at least one of the anode, the cathode, the electrolyte, and/or the optional separator may comprise an additive and/or additive precursor. For instance, in some cases, the electrochemical cell comprises an electrolyte and an additive and/or additive precursor that is soluble with and/or is present in the electrolyte. In some embodiments, the additive precursor comprises a disulfide bond. In certain embodiments, the additive is a carbon disulfide salt. In some cases, the electrolyte may comprise a nitrate.Type: ApplicationFiled: December 21, 2022Publication date: April 20, 2023Applicant: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, Thomas Weiss
-
Patent number: 11569531Abstract: Articles and methods including additives in electrochemical cells, are generally provided. As described herein, such electrochemical cells may comprise an anode, a cathode, an electrolyte, and optionally a separator. In some embodiments, at least one of the anode, the cathode, the electrolyte, and/or the optional separator may comprise an additive and/or additive precursor. For instance, in some cases, the electrochemical cell comprises an electrolyte and an additive and/or additive precursor that is soluble with and/or is present in the electrolyte. In some embodiments, the additive precursor comprises a disulfide bond. In certain embodiments, the additive is a carbon disulfide salt. In some cases, the electrolyte may comprise a nitrate.Type: GrantFiled: July 2, 2021Date of Patent: January 31, 2023Assignee: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, Thomas Weiss
-
Patent number: 11557753Abstract: Articles and methods including composite layers for protection of electrodes in electrochemical cells are provided. In some embodiments, the composite layers comprise a polymeric material and a plurality of particles.Type: GrantFiled: October 21, 2015Date of Patent: January 17, 2023Assignee: Sion Power CorporationInventors: Igor P. Kovalev, Veronika G. Viner, David L. Coleman, Yuriy V. Mikhaylik, Christine Bunte
-
Publication number: 20220328880Abstract: Aspects of the present disclosure are directed towards increases in cycle life and stability of electrochemical cells. Electrolytes and electrochemical cells, including those for use in rechargeable lithium batteries, are generally provided. In some embodiments, the electrolytes and electrochemical cells comprise asymmetric sulfonamides. The electrolytes and electrochemical cells also comprise carbonates, according to some embodiments.Type: ApplicationFiled: April 4, 2022Publication date: October 13, 2022Applicant: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, Alexis Sheffield
-
Publication number: 20220181624Abstract: Electrodes and methods of preparing electrodes with a porous electroactive region are generally described herein.Type: ApplicationFiled: December 2, 2021Publication date: June 9, 2022Applicant: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, Chariclea Scordilis-Kelley, Urs Schoop
-
Patent number: 11316204Abstract: Methods and articles relating to separation of electrolyte compositions within lithium batteries are provided. The lithium batteries described herein may include an anode having lithium as the active anode species and a cathode having sulfur as the active cathode species. Suitable electrolytes for the lithium batteries can comprise a heterogeneous electrolyte including a first electrolyte solvent (e.g., dioxolane (DOL)) that partitions towards the anode and is favorable towards the anode (referred to herein as an “anode-side electrolyte solvent”) and a second electrolyte solvent (e.g., 1,2-dimethoxyethane (DME)) that partitions towards the cathode and is favorable towards the cathode (and referred to herein as an “cathode-side electrolyte solvent”).Type: GrantFiled: April 17, 2020Date of Patent: April 26, 2022Assignee: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Chariclea Scordilis-Kelley, Igor P. Kovalev, Cathie Burgess
-
Publication number: 20220115715Abstract: Electrolytes, articles, and methods for reducing gases produced during the operation of an electrochemical cell are generally described. The inclusion of silylated sulfonic acid esters can reduce the amount of gases produced in an electrochemical cell (e.g., a battery).Type: ApplicationFiled: September 20, 2021Publication date: April 14, 2022Applicant: Sion Power CorporationInventors: Igor P. Kovalev, Alexis Sheffield, Yuriy V. Mikhaylik
-
Publication number: 20220115704Abstract: The present invention relates generally to lithium batteries, and more specifically, to electrolyte compositions within lithium batteries. Some aspects of the invention are related to an electrolyte for a lithium battery. In some embodiments, the electrolyte comprises a lithium salt, an organic solvent, and an aromatic hydrocarbon solvent that is different from the organic solvent. The aromatic hydrocarbon solvent may have limited solubility in the organic solvent and/or a limited solubility for lithium salt, e.g., such that the aromatic hydrocarbon solvent is capable of inducing phase separation of the electrolyte when present in a certain amount. In one set of embodiments, an electrolyte comprising one or more aromatic hydrocarbon may lead to an enhanced battery cycle life, reduced rate of electrolyte degradation, and improved low temperature performance. The subject matter disclosed herein involves, in some cases, the use of the electrolyte in a lithium battery.Type: ApplicationFiled: September 24, 2021Publication date: April 14, 2022Applicant: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, Alexis Sheffield
-
Publication number: 20220115705Abstract: Articles and methods related to electrochemical cells and/or electrochemical cell components comprising species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or reaction products of such species are generally provided. The electrochemical cell may comprise an electrolyte comprising a species comprising a conjugated, negatively-charged ring comprising a nitrogen atom, which may further comprise a species comprising a labile halogen atom. In some embodiments, the electrochemical cell comprises an electrode comprising lithium metal. In some embodiments, the electrochemical cell comprises a protective layer comprising a species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or a reaction product thereof.Type: ApplicationFiled: October 1, 2021Publication date: April 14, 2022Applicant: Sion Power CorporationInventors: Igor P. Kovalev, Yuriy V. Mikhaylik
-
Publication number: 20220115649Abstract: Articles and methods related to electrochemical cells and/or electrochemical cell components (such as electrodes) comprising species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or reaction products of such species are generally provided. The electrochemical cell may comprise an electrode (e.g., a cathode) comprising a protective layer comprising a species comprising a conjugated, negatively-charged ring comprising a nitrogen atom and/or a reaction product thereof.Type: ApplicationFiled: October 1, 2021Publication date: April 14, 2022Applicant: Sion Power CorporationInventors: Igor P. Kovalev, Yuriy V. Mikhaylik
-
Publication number: 20220029191Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.Type: ApplicationFiled: August 4, 2021Publication date: January 27, 2022Applicant: Sion Power CorporationInventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T. S. Campbell, John A. Martens
-
Patent number: 11233243Abstract: Electrochemical cells, and more specifically, release systems for the fabrication of electrochemical cells are described. In particular, release layer arrangements, assemblies, methods and compositions that facilitate the fabrication of electrochemical cell components, such as electrodes, are presented. In some embodiments, methods of fabricating an electrode involve the use of a release layer to separate portions of the electrode from a carrier substrate on which the electrode was fabricated. For example, an intermediate electrode assembly may include, in sequence, an electroactive material layer, a current collector layer, a release layer, and a carrier substrate. The carrier substrate can facilitate handling of the electrode during fabrication and/or assembly, but may be released from the electrode prior to commercial use.Type: GrantFiled: May 9, 2019Date of Patent: January 25, 2022Assignee: Sion Power CorporationInventors: John D. Affinito, John A. Martens, Ang Xiao, Christopher T. S. Campbell, Yuriy V. Mikhaylik, Igor P. Kovalev, Ashley H. Bulldis, Zhesheng Xu
-
Publication number: 20210408598Abstract: Articles and methods including additives in electrochemical cells, are generally provided. As described herein, such electrochemical cells may comprise an anode, a cathode, an electrolyte, and optionally a separator. In some embodiments, at least one of the anode, the cathode, the electrolyte, and/or the optional separator may comprise an additive and/or additive precursor. For instance, in some cases, the electrochemical cell comprises an electrolyte and an additive and/or additive precursor that is soluble with and/or is present in the electrolyte. In some embodiments, the additive precursor comprises a disulfide bond. In certain embodiments, the additive is a carbon disulfide salt. In some cases, the electrolyte may comprise a nitrate.Type: ApplicationFiled: July 2, 2021Publication date: December 30, 2021Applicant: Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor P. Kovalev, Thomas Weiss
-
Patent number: 11121397Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.Type: GrantFiled: November 25, 2019Date of Patent: September 14, 2021Assignee: Sion Power CorporationInventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T. S. Campbell, John A. Martens