Disclosed herein is a mother slurry comprising high aspect ratio carbonaceous material, a solvent, a dispersant agent comprising hydrogenated nitrile butadiene rubber (HNBR) and a cathode active material. A solvent free method of preparing an electrode slurry including a carbonaceous conductive material, a plasticizer, an active material, and a polymer binder to from an electrode slurry. The electrode slurry has a fluorine content of less than about 900 parts per million.
Disclosed herein is an apparatus comprising an electrode active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network and enmeshed in the network; and a surface treatment on the surface of the high aspect ratio carbon elements which promotes adhesion between the high aspect ratio carbon elements and the active material particles.
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
3.
ADVANCED ELECTROLYTE SYSTEMS AND THEIR USE IN ENERGY STORAGE DEVICES
An ultracapacitor that includes an energy storage cell immersed in an advanced electrolyte system and disposed within a hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about −40 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.
A solvent free method of preparing an electrode slurry including a carbonaceous conductive material, a plasticizer, an active material, and a polymer binder to from an electrode slurry. The electrode slurry has a fluorine content of less than about 900 parts per million.
Disclosed herein is a semi-dry method of preparing an electrode slurry comprising a carbonaceous conductive material, an active material, a polymer binder, and a solvent wherein the electrode slurry has a fluorine content of less than about 900 parts per million. A battery cell comprising a cathode comprising a cathode current collector and a cathode active layer and an anode comprising an anode current collector and an anode active layer, wherein the active layers comprise high aspect ratio carbon elements and have a fluorine content of less than about 900 parts per mission. An energy storage device comprising a housing, a separator, and a cathode and an anode where the cathode and the anode comprise a current collector and an active layer where the active layer has a fluorine content of less than 900 parts per million.
An electrode for an energy storage device is disclosed. The electrode includes an active layer. The active layer includes a network of high aspect ratio carbon elements defining void spaces within the network, a plurality of electrode active material particles disposed in the void spaces within the network, wherein the active material particles comprise silicon, and a polymeric additive, the polymeric additive being at least one of a polyolefin, a Poly(acrylic acid), and a styrene-butadiene rubber (SBR).
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/134 - Electrodes based on metals, Si or alloys
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
An energy storage device comprising two electrodes, and a separator located between and electrically separating the two electrodes wherein at least one of the electrodes comprises an active layer that comprises electrode active particles, an electrically conductive element, and an electrolyte. The active layer is characterized by one or more of the following: the volume of the active layer in the presence of the electrolyte is at least 10%, preferably at least 20%, larger than a volume of a combination of the electrode active particles and the electrically conductive element in the absence of the electrolyte; a volume during use at least 10%, preferably at least 20%, larger than an original volume; the electrically conductive element is in the form of a flexible network capable of expansion and/or compression; the active layer includes flexible binder which facilitates expansion and contraction of the active layer.
Disclosed herein is a method comprising mixing a first polymer binder with carbonaceous conductive materials to produce a first blend; adding to the first blend a second polymer binder in a first solvent to produce a second blend; mixing the second blend; adding to the second blend a third polymer binder in a second solvent to produce a third blend; mixing the third blend; adding to the third blend an active material to form an active material composition; and mixing the active material composition.
Disclosed herein is an anode comprising a current collector; an anode active layer disposed on the current collector, wherein the anode active layer comprises anode active particles, an anode electrically conducting material and an anode binder; wherein the anode binder comprises a copolymer that comprises a first repeat unit and a second repeat unit; where the first repeat unit is derived from the polymerization of a first monomer that comprises an ether linkage or comprises multiple hydroxyl groups and wherein the second repeat unit is derived from the polymerization of an ethylenically unsaturated monomer that comprises a hydrophilic pendant group.
Disclosed herein is an electrode comprising an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network; and a polymeric binder comprising a first polymer which is a polymer comprising an acid functional group or a salt of such acid functional group; a polyamide; or an acrylate polymer, and a second polymer
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
H01G 11/86 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
12.
ELECTRODES FOR ENERGY STORAGE DEVICE COMPRISING COPOLYMERIC BINDER
An electrode useful in energy storage devices comprises a current collector and an active layer on the current collector, wherein the active layer comprises electrode active particles, electrically conducting material and a binder wherein the binder comprises a copolymer that comprises a first repeat unit and a second repeat unit; where the first repeat unit is derived from the polymerization of a first monomer which is ethylenically unsaturated monomer having a hydrophilic pendant group and the second repeat unit is derived from the polymerization of a second monomer having ethylenic unsaturation.
Disclosed herein is an anode comprising a current collector; an anode active layer disposed on the current collector, wherein the anode active layer comprises anode active particles, an anode electrically conducting material and an anode binder; wherein the anode binder comprises a copolymer that comprises a first repeat unit and a second repeat unit; where the first repeat unit is derived from the polymerization of a first monomer that comprises an ether linkage or comprises multiple hydroxyl groups and wherein the second repeat unit is derived from the polymerization of an ethylenically unsaturated monomer that comprises a hydrophilic pendant group.
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
H01G 11/50 - Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/134 - Electrodes based on metals, Si or alloys
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
14.
ELECTRODES FOR ENERGY STORAGE DEVICE COMPRISING BINDERS HAVING HYDROPHILIC FUNCTIONALITY
An electrode comprising a current collector and an active layer on the current collector, wherein the active layer comprises electrode active particles, electrically conducting material and a binder wherein the binder comprises a polymer selected from the group consisting of polyacrylamides, polymethacrylic acid, polyacrylic acid and salts thereof can be used in an energy storage device. The electrode can be made by providing a slurry comprising the electrically conductive elements, the binder and the electrode active material in water, alcohol or a combination thereof, and coating the slurry onto a current collector, and drying to remove the solvent.
Disclosed herein is an apparatus comprising an electrode active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network and enmeshed in the network; and a surface treatment on the surface of the high aspect ratio carbon elements which promotes adhesion between the high aspect ratio carbon elements and the active material particles.
Disclosed herein is an electrode, comprising an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network; and a first binder material comprising a water soluble styrene butadiene rubber. Disclosed herein too is a method of manufacturing an active layer comprising mixing together a water soluble styrene butadiene rubber, a plurality of high aspect ratio carbon elements, a plurality of electrode active material particles and a solvent to form a slurry; disposing the slurry on a surface of a metal foil; and drying the slurry to form an active layer.
Disclosed herein is an energy storage device that comprises a cathode and an anode, wherein at least one of the anode and cathode includes an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; and a plurality of electrode active material particles disposed in the void spaces within the network; and the network of high aspect ratio carbon elements has an intersection density of at least 0.1 per μm2
An electrode for an energy storage device is disclosed. The electrode includes an active layer. The active layer includes a network of high aspect ratio carbon elements defining void spaces within the network, a plurality of electrode active material particles disposed in the void spaces within the network, wherein the active material particles comprise silicon, and a polymeric additive, the polymeric additive being at least one of a polyolefin, a Poly(acrylic acid), and a styrene-butadiene rubber (SBR).
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
H01G 11/86 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
C01B 32/174 - DerivatisationSolubilisationDispersion in solvents
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
An electrode for an energy storage device is disclosed. The electrode includes an active layer. The active layer includes a network of high aspect ratio carbon elements defining void spaces within the network, a plurality of electrode active material particles disposed in the void spaces within the network, and a polymeric additive, the polymeric additive being at least one of (i) selected from a family of polyamides, or (ii) a modified polyamide or derivative of a polyamide.
Disclosed herein is an anode, comprising an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network, wherein the active material particles comprise silicon; and a polymeric additive, the polymeric additive being at least one of (i) selected from a family of polyamides, or (ii) a modified polyamide or derivative of a polyamide. Disclosed herein too is a cathode, comprising an active layer comprising a network of high aspect ratio carbon elements defining void spaces within the network; a plurality of electrode active material particles disposed in the void spaces within the network; and a polymeric additive, the polymeric additive being at least one of (i) selected from a family of polyamides, or (ii) a modified polyamide or derivative of a polyamide.
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
21.
MANUFACTURE OF ELECTRODES FOR ENERGY STORAGE DEVICES
A method for fabricating an electrode for an energy storage device is provided. The method includes heating a mixture of solvent and materials for use as energy storage media; adding active material to the mixture; adding dispersant to the mixture to provide a slurry; coating a current collector with the slurry; and calendering the coating of slurry on the current collector to provide the electrode.
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
H01G 11/42 - Powders or particles, e.g. composition thereof
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
42 - Scientific, technological and industrial services, research and design
Goods & Services
Software as a service (SAAS) services featuring software for battery design optimization by use of Artificial Intelligence (AI) to compile data, manufacturing processes, and long-running tests
42 - Scientific, technological and industrial services, research and design
Goods & Services
Software as a service (SAAS) services featuring software for battery design optimization by use of Artificial Intelligence (AI) to compile data, manufacturing processes, and long-running tests for battery design optimization
25.
MANUFACTURE OF SILICON-CARBON ELECTRODES FOR ENERGY STORAGE DEVICES
A method for fabricating an electrode for an energy storage device is provided. The method includes heating a mixture of solvent and materials for use as energy storage media; adding active material to the mixture; adding dispersant to the mixture to provide a slurry; coating a current collector with the slurry; and calendering the coating of slurry on the current collector to provide the electrode.
A lithium ion capacitor includes binder free positive and negative electrode active layers. The capacitor exhibits high energy density, power density and cycle life and provides a good compromise in performance between an electric double layer capacitor and a lithium ion battery.
A method for fabricating an electrode for an energy storage device is provided. The method includes heating a mixture of solvent and materials for use as energy storage media; adding active material to the mixture; adding dispersant to the mixture to provide a slurry; coating a current collector with the slurry; and calendaring the coating of slurry on the current collector to provide the electrode.
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
Disclosed herein is an apparatus comprising an active layer substantially free of binding agents, the active layer comprising a network of carbon nanotubes defining void spaces, the network of carbon nanotubes making up less than 10% by weight of the active layer; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes; wherein the active layer is configured to provide energy storage.
Disclosed herein is an apparatus comprising an active layer substantially free of binding agents, the active layer comprising a network of carbon nanotubes defining void spaces, the network of carbon nanotubes making up less than 10% by weight of the active layer; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes; wherein the active layer is configured to provide energy storage.
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
C01B 32/174 - DerivatisationSolubilisationDispersion in solvents
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
An energy storage apparatus for mounting on a printed circuit board using a solder reflow process includes: a sealed housing body including a positive internal contact and a negative internal contact disposed within the body and in electrical communication with respective external contacts. An electric double layer capacitor energy storage cell is disposed within the body Methods of manufacture are disclosed.
H01G 11/14 - Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
H01G 11/30 - Electrodes characterised by their material
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
Disclosed herein is an energy storage apparatus suitable for mounting on a printed circuit board using a solder reflow process, the apparatus comprising a sealed housing body comprising a positive internal contact and a negative internal contact each disposed within the body and each respectively in electrical communication with a positive external contact and a negative external contact, each of the external contacts providing electrical communication to the exterior of the body; an electric double layer capacitor (EDLC) energy storage cell disposed within a cavity in the body comprising a stack of alternating electrode layers and electrically insulating separator layers; an electrolyte disposed within the cavity and wetting the electrode layers; a positive lead electrically connecting a first group of one or more of the electrode layers to the positive internal contact.
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
Disclosed herein is a composition comprising a shell that is substantially carbon encapsulating a volume that contains a nanoform of silicon and a void space. Disclosed herein too is a method of fabricating a composition comprising combining a nanoform of silicon with a carbon precursor and sintering the combination with a laser.
An electrolyte includes a lithium salt dissolved in a solvent mixture. The solvent mixture may include a first solvent component including an organic solvent having no carbonate groups; a second solvent component configured to improve the electrochemical properties of the first solvent at low temperatures; a third solvent compound configured to promote formation of a passivating SEI layer between the electrolyte and an electrode layer; and a fourth solvent compound configured to stabilize a lithium salt at high temperatures.
An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
C01B 32/174 - DerivatisationSolubilisationDispersion in solvents
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
An apparatus is disclosed that includes an active storage layer including: a network of carbon nanotubes defining void spaces; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes. In some cases, the active layer provides energy storage, e.g., in an ultracapacitor device.
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
An apparatus is disclosed that includes an active storage layer including: a network of carbon nanotubes defining void spaces; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes. In some cases, the active layer provides energy storage, e.g., in an ultracapacitor device.
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
An energy storage- apparatus suitable for mounting on a printed circuit board, using a solder reflow process is disclosed.In some embodiments, the apparatus includes: a sealed housing body (e.g., a lower body with a lid attached thereto) including a positive internal contact and a negative internal contact (e.g., metallic contact pads). disposed within the body and each respectively in electrical communication with a positive external contact and a negative external contact. Each of the external contacts provide electrical communication to the exterior of the body, and may be disposed on an external surface of the body. An electric double layer capacitor (EDLC) (also referred to herein as an "ultracapacitor" or "supercapacitor") energy storage cell is disposed within a cavity in the body including a stack of alternating electrode layers and electrically insulating separator layers. An electrolyte is disposed within the cavity and wets the electrode layers. A positive lead electrically connects: a. first group of one of more of the electrode layers to the positive internal contact; and a negative lead electrically connects a second group of one or more of the electrode layers to the negative internal contact.
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
An apparatus is disclosed that includes an active storage layer including: a network of carbon nanotubes defining void spaces; and a carbonaceous material located in the void spaces and bound by the network of carbon nanotubes. In some cases, the active layer provides energy storage, e.g., in an ultracapacitor device.
Electric double layer capacitor devices are disclosed. The devices may be suitable for operation of wide temperature ranges. In some cases, the capacitor features a solid state electrolyte that includes an ionic liquid doped polymer matrix.
In one embodiment, an electrode is provided. The electrode includes a current collector comprising aluminum with an aluminum carbide layer on at least one surface, on which at least one layer of carbon nanotubes (CNTs) is disposed. The electrode may comprise vertically-aligned, horizontally-aligned, or nonaligned (e.g., tangled or clustered) CNTs. The electrode may comprise compressed CNTs. The electrode may comprise single-walled, double-walled, or multiwalled CNTs. The electrode may comprise multiple layers of CNTs.
H01G 11/28 - Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collectorLayers or phases between electrodes and current collectors, e.g. adhesives
H01G 11/36 - Nanostructures, e.g. nanofibres, nanotubes or fullerenes
H01G 11/68 - Current collectors characterised by their material
H01G 11/70 - Current collectors characterised by their structure
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/134 - Electrodes based on metals, Si or alloys
B82Y 99/00 - Subject matter not provided for in other groups of this subclass
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
In one aspect, an apparatus is disclosed including: a power supply and a rotary mud pulse telemetry device. The rotary mud pulse telemetry device includes a drive motor configured to be powered by the power supply and a rotating actuator configured to be driven by the drive motor to modulate the flow of fluid through a borehole to encode information from a down hole location. In some embodiments, the power suppiy and drive motor are configured to cooperate to drive the rotating actuator with a high torque.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
G01V 3/18 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging
An electric double layer capacitor (EDLC) is disclosed including: a first electrode including a first current collector and first plurality of carbon nanotubes (CNTs) disposed substantially directly upon the first current collector; a second electrode comprising a second current collector and second plurality of CNTs disposed substantially directly upon the second current collector; and an electrolyte disposed between and in contact with (e.g., wetting) the first and second electrodes. In some embodiments, the EDLC is configured to have a capacitive frequency window comprising about 1 Hz to about 50 Hz.
H01G 11/10 - Multiple hybrid or EDL capacitors, e.g. arrays or modules
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
48.
ADVANCED ELECTROLYTES FOR HIGH TEMPERATURE ENERGY STORAGE DEVICE
An ultracapacitor that includes an energy storage cell immersed in an electrolyte and disposed within an hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor has a gel or polymer based electrolyte and is configured to output electrical energy at temperatures between about -40 °C and about 250 °C. Methods of fabrication and use are provided.
In one aspect, an electromagnetic (EM) telemetry device is disclosed including an EM telemetry circuit capable of transmitting a pulsed high power EM telemetry signal, wherein the high power EM telemetry signal has a peak or average pulse power of about 20 W to about 2000 W.
G01V 11/00 - Prospecting or detecting by methods combining techniques covered by two or more of main groups
E21B 41/00 - Equipment or details not covered by groups
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
Systems and methods directed to providing power to instruments in a downhole environment are generally described. A dynamics monitoring system (DMS) for downhole drilling applications is disclosed, the DMS including at least one rotational sensor, where the DMS is capable of operating at temperatures throughout an operating temperature range comprising about 175 °C to about 210 °C.
A downhole power system is provided that includes an energy storage adapted to operate at high temperatures, and a modular signal interface device that serves to control the energy storage component as well as offer a means of data logging at high temperatures. The controller is fabricated from pre-assembled components that may be selected for various combinations to provide desired functionality. The energy storage may include at least one ultracapacitor.
A downhole power supply is provided that includes an energy storage adapted to operate at high temperatures, and a rotational inertial energy generator to capture the shock energy and vibrational energy of downhole movement of the drill string. The energy storage may include at least one ultracapacitor. As people and companies continue to search for and extract oil, the quest for hydrocarbons has grown increasingly complex. For example, it is well known that the "easy oil" is generally gone, and exploration now requires searching to greater depths than ever before by drilling a wellbore deep into the Earth.
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
53.
MODULAR SIGNAL INTERFACE DEVICES AND RELATED DOWNHOLE POWER AND DATA SYSTEMS
A downhole power system is provided that includes an energy storage adapted to operate at high temperatures, and a modular signal interface device that serves to control the energy storage component as well as offer a means of data logging at high temperatures. The controller is fabricated from pre-assembled components that may be selected for various combinations to provide desired functionality. The energy storage may include at least one ultracapacitor.
An ultracapacitor that includes an energy storage cell immersed in an advanced electrolyte system and disposed within a hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about -40 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.
A logging system and method for operating a logging system are typically used in a wellbore. The logging system may include a logging instrument including a rechargeable energy storage and logging electronics, and a cable configured to trickle charge the rechargeable energy storage. The rechargeable energy storage may include an ultracapacitor. The rechargeable energy storage may be trickle charged through the cable from a remote power source.
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
In one embodiment, a power supply that is adapted for supplying power to a downhole tool is disclosed. The power supply includes an energy source coupled to a control circuit and a rechargeable energy storage that is configured to operate at a temperature within a temperature range between about 80 degrees Celsius to about 210 degrees Celsius. The source may include at least one of a battery, a connection to an external supply of electrical energy and a generator that is configured for translating energy experienced by the downhole tool into the electrical energy. The control circuit may be configured for receiving electrical energy from the source and storing the electrical energy in the energy storage.
An ultracapacitor that includes an energy storage cell immersed in an electrolyte and disposed within an hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about 80 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.
An ultracapacitor includes at least one electrode that includes carbon nanotubes. The carbon nanotubes may be applied in a variety of ways, and a plurality of layers may be included. Methods of fabrication of carbon nanotubes and ultracapacitors are provided.
A power system adapted for supplying power in a high temperature environment is disclosed. The power system includes a rechargeable energy storage that is operable in a temperature range of between about seventy degrees Celsius and about two hundred and fifty degrees Celsius coupled to a circuit for at least one of supplying power from the energy storage and charging the energy storage; wherein the energy storage is configured to store between about one one hundredth (0.01) of a joule and about one hundred megajoules of energy, and to provide peak power of between about one one hundredth (0.01) of a watt and about one hundred megawatts, for at least two charge-discharge cycles. Methods of use and fabrication are provided. Embodiments of additional features of the power supply are included.
