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2753 results about "Electrochemical cell" patented technology
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An electrochemical cell is a device capable of either generating electrical energy from chemical reactions or using electrical energy to cause chemical reactions. The electrochemical cells which generate an electric current are called voltaic cells or galvanic cells and those that generate chemical reactions, via electrolysis for example, are called electrolytic cells. A common example of a galvanic cell is a standard 1.5 volt cell meant for consumer use. A battery consists of one or more cells, connected either in parallel, series or series-and-parallel pattern.
Method and apparatus for controlling the voltage of electrochemical cells in a rechargeable battery
InactiveUS20040251874A1reduce voltageCharge equalisation circuitElectrical testingElectrical batteryPhysical chemistry
An apparatus is dedicated to controlling the voltage of a battery comprising at least two modules connected in series and each comprising at least one electrochemical cell, and each coupled to voltage balancing means. The apparatus comprises measurement means for determining first voltages across the terminals of each of the modules, calculation means for measuring a second voltage across the terminals of the battery and for determining a mean voltage per module representative of the second voltage divided by the number of modules, and processor means for comparing each measured first voltage with the mean voltage per module and for delivering to the balancing means signals representative of the result of the comparison whenever the first voltage of a module is greater than the mean voltage, such that the balancing means reduce the voltage across the terminals of the module.
Owner:SAFT GRP SA
Systems and methods for minimizing and preventing dendrite formation in electrochemical cells
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
Owner:24M TECHNOLOGIES INC
Systems, devices, and methods for providing heat to electrochemical cells and electrochemical cell stacks
PendingUS20250192188A1Batteries circuit arrangementsPhotovoltaicsChemical physicsConductive materials
The embodiments described herein involve electrochemical cells that have a heating element integrated into the electrochemical cell. In some aspects, an electrochemical cell comprises an anode current collector, an anode material disposed on the anode current collector, a cathode current collector, a cathode material disposed on a first side of the cathode current collector, a separator disposed between the anode material and the cathode material, and a heating element disposed on a second side of the cathode current collector, the second side opposite the first side. The heating element may include an electrically conductive material and a conductive material and disposed in an insulative material.
Owner:24M TECHNOLOGIES INC
Atmospheric carbon dioxide capture system
An atmospheric CO2 capture system includes a compartment housing a solid CO2 sorbent, an exchange fluid including a chemical component with selectivity towards CO2, and an electrochemical cell or mineralization reactor in fluid communication with the compartment, the system having a cycle including a first state of sorbing CO2 from incoming air onto the solid CO2 sorbent until a saturation point is reached; a second state of regenerating the sorbent by flooding the compartment with the exchange fluid to detach CO2 from the saturated sorbent and bind the detached CO2 to the chemical component; and a third state of regenerating the chemical component and utilizing the CO2 in the electrochemical cell or mineralization reactor.
Owner:ROBERT BOSCH GMBH
Atmospheric carbon dioxide capture system
An atmospheric CO2 capture system includes a compartment housing a solid CO2 sorbent, an exchange fluid including a chemical component with selectivity towards CO2, and an electrochemical cell or mineralization reactor in fluid communication with the compartment, the system having a cycle including a first state of sorbing CO2 from incoming air onto the solid CO2 sorbent until a saturation point is reached; a second state of regenerating the sorbent by flooding the compartment with the exchange fluid to detach CO2 from the saturated sorbent and bind the detached CO2 to the chemical component; and a third state of regenerating the chemical component and utilizing the CO2 in the electrochemical cell or mineralization reactor.
Owner:ROBERT BOSCH GMBH
Systems and methods for minimizing and preventing dendrite formation in electrochemical cells
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
Owner:24M TECHNOLOGIES INC
Method and device for testing intrinsic solid ion diffusion coefficient based on optical imaging
The invention provides an intrinsic solid-state ion diffusion coefficient test method and device based on optical imaging, and relates to the technical field of solid-state ion test.The method comprises the steps that a test sample is pretreated; carrying out a photoelectric test on the test sample; placing the electrochemical cell in an optical imaging system, connecting the electrochemical cell with an electrical testing system, applying a constant voltage deviating from a steady state to the monodisperse electrode plate, collecting the real-time change condition of the material under the modulation of the constant voltage in real time through an industrial camera, and outputting relational data of optical intensity and time; analyzing the diffusion path through in-situ characterization equipment, and obtaining an ion diffusion path corresponding to the to-be-detected ion battery electrode material particles in combination with dynamic information provided by an optical imaging system; and determining the characteristic time according to the relational data of the optical intensity and the time, and determining the intrinsic solid ion diffusion coefficient corresponding to the test sample by combining the characteristic time and the ion diffusion path corresponding to the to-be-tested ion battery electrode material particles.
Owner:NANJING UNIV
Electrochemical cells with multiple separators, and methods of producing the same
Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.
Owner:24M TECHNOLOGIES INC
Electrochemical cells with multiple separators, and methods of producing the same
Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.
Owner:24M TECHNOLOGIES INC
Charge / discharge management in electrochemical cells, including partial cycle control
Electrochemical cell and battery management systems are generally provided. The systems can comprise an electrochemical cell and a controller. In some cases, the controller can be used to control various aspects of the charge and / or discharge of the electrochemical cell. In some cases, the system can comprise one or more strings of cells.
Owner:SION POWER CORP
Electrochemical monitoring system adjustment
In an example, an electrochemical monitoring system for determining one or more parameters of interest of an electrochemical cell can include measurement circuitry, which can be configured to obtain, for a plurality of specified alternating current (AC) frequencies: (1) a first AC voltage measurement across nodes which can be coupleable to the electrochemical cell, and (2) a second AC voltage measurement across a sensing impedance which can be elicited in response to the AC stimulus. The sensing impedance can be coupled in series with the electrochemical cell. The electrochemical monitoring system can also include a controller circuit, which can be configured to jointly estimate model parameters corresponding to an equivalent circuit model (ECM) of a combination of the electrochemical cell and the sensing impedance, such as using the first and second AC voltage measurements for the plurality of specified AC frequencies.
Owner:ANALOG DEVICES INC
Electrochemical cells with flame retardant mechanism and methods of producing the same
Apparatus, systems, and methods described herein relate to the manufacture and use of electrochemical cells with a flame retardant mechanism. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a first pouch, the first current collector having a first electrode material disposed thereon. The electrochemical cell further includes a second current collector coupled to a second portion of the first pouch, the second current collector having a second electrode material disposed thereon. The electrochemical cell further includes a separator disposed between the first electrode material and the second electrode material, the first portion of the first pouch coupled to the second portion of the first pouch to enclose the electrochemical cell. The electrochemical cell further includes a flame retardant material coated to the first pouch and a second pouch, the second pouch enclosing the first pouch and the flame retardant material.
Owner:24M TECHNOLOGIES INC
Single pouch battery cells and methods of manufacture
ActiveUS12347874B2Large-sized flat cells/batteriesFinal product manufactureElectrical batteryManufactured apparatus
Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.
Owner:KYOCERA CORP +1
Electrochemical cells with multiple separators, and methods of producing the same
Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.
Owner:24M TECHNOLOGIES INC
Apparatus and method for making coils, preferably for an electrochemical cell intended for battery production
PendingUS20260100402A1Assembling battery machinesFinal product manufactureElectrical batteryMechanical engineering
Owner:GD SPA
Systems and methods for minimizing and preventing dendrite formation in electrochemical cells
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
Owner:24M TECHNOLOGIES INC
Carbon dioxide recovery system
PendingUS20250170516A1Gas treatmentDispersed particle separationCarbon dioxide bindingElectrochemical cell
A carbon dioxide recovery system includes an electrochemical cell that includes a working electrode, a counter electrode, an insulating layer, and an electrolyte layer. The electrochemical cell is configured to repeat an adsorption mode and a desorption mode. In the adsorption mode, in a state where oxygen is supplied together with a gas to be treated that contains carbon dioxide to a portion of the electrolyte layer in a vicinity of the working electrode, a voltage is applied between the working electrode and the counter electrode to supply electrons to the working electrode so that the oxygen receives electrons to generate active oxygen, and the active oxygen combines with the carbon dioxide to absorb the carbon dioxide and generate a carbon dioxide adsorbed molecule.
Owner:DENSO CORP
Systems and methods for minimizing and preventing dendrite formation in electrochemical cells
ActiveUS20250309368A1Batteries circuit arrangementsSmall-sized cells cases/jacketsChemical physicsGraphite
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms, and methods of producing and operating the same. In some aspects, an electrochemical cell can include an anode and a cathode material disposed on a cathode current collector, the cathode material and the cathode current collector forming a cathode. The electrochemical cell further includes a first separator disposed on the anode, a second separator disposed on the cathode, and an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material, the interlayer including a source of lithium ions, the lithium ions configured to migrate toward the anode upon a voltage difference between the interlayer and the anode exceeding a threshold value. In some embodiments, the anode can include an anode material disposed on an anode current collector. In some embodiments, the anode material can include graphite, silicon, and / or hard carbon.
Owner:24M TECHNOLOGIES INC
Electrochemical plant activity monitor
ActiveUS12399149B2Testing plants/treesMaterial electrochemical variablesSoil sciencePotential difference
A working electrode is inserted into the plant to monitor the health of the plant components or to detect physical, mechanical damage or environmental change in the soil or atmosphere. A standard electrode is inserted into soil surrounding the plant or in the plant itself. A data logger connects the working electrode and the standard electrode. The data logger measures the potential difference between the working electrode and the electrolyte to provide the ability to compare a measured potential difference with a predetermined critical potential difference for the plant. A second electrochemical cell can inject electrons and ions into the plant. The plant can be used as a sensor to monitor the environmental change in the soil or in the atmosphere.
Owner:AGRIGENICS INC
Solid additives for iron negative electrodes
PendingCN120188282AAlkaline accumulatorsElectrode thermal treatmentSulfide compoundElectrochemical cell
According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may comprise a powder of discrete particles comprising agglomerated particles comprising at least one metal sulfide.
Owner:FORM ENERGY INC
Electrochemical cells with flame retardant mechanism and methods of producing the same
Apparatus, systems, and methods described herein relate to the manufacture and use of electrochemical cells with a flame retardant mechanism. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a first pouch, the first current collector having a first electrode material disposed thereon. The electrochemical cell further includes a second current collector coupled to a second portion of the first pouch, the second current collector having a second electrode material disposed thereon. The electrochemical cell further includes a separator disposed between the first electrode material and the second electrode material, the first portion of the first pouch coupled to the second portion of the first pouch to enclose the electrochemical cell. The electrochemical cell further includes a flame retardant material coated to the first pouch and a second pouch, the second pouch enclosing the first pouch and the flame retardant material.
Owner:24M TECHNOLOGIES INC
Aluminum-based cathodes for lithium superoxide
A lithium oxygen electrochemical cell includes an anode that includes lithium metal, a porous oxygen cathode that includes a conductive carbon and aluminum, and an electrolyte.
Owner:UCHICAGO ARGONNE LLC
Liquid Electrolytes Comprising Ionic Liquids for Lithium-Metal Battery Modules
Described herein are lithium-metal rechargeable electrochemical cells comprising a lithium-metal negative electrode, a positive electrode, and a liquid electrolyte. The liquid electrolyte comprises a core mixture and a diluent. The diluent comprises a fluorinated ether. The core mixture comprises a set of salts and a set of solvents. The set of solvents comprises a pyrrolidinium-containing ionic liquid and a molecular solvent. The molecular solvent is a non-fluorinated ether, for example including but not limited to 1,2-dimethoxyethane. In some examples, the electrolyte further comprises an electrolyte additive, for example including but not limited to tris(trimethylsilyl)phosphate. In some examples, the set of salts comprises one or more imide-containing lithium salts. In some examples, the set of salts comprises lithium bis(fluorosulfonyl)imide and an additional salt and the mole fraction of lithium bis(fluorosulfonyl)imide in the set of salts is 0.5 or greater.
Owner:CUBERG INC
Electrochemical cell, electrochemical cell device, module, and module storage device
PCT designated stage expiredWO2025143244A1Fuel cell auxillariesSolid electrolyte fuel cellsEngineeringElectrochemical cell
An electrochemical cell according to the present invention comprises a metal plate and an element part. The metal plate has a first surface, a second surface, and a plurality of through holes which include at least one first hole. The second surface is located on the opposite side from the first surface. The plurality of through holes each have a first opening which is located on the first surface. The element part has a first layer which faces the first surface, a solid electrolyte layer, and a first electrode which is located on the opposite side of the solid electrolyte layer from the first layer. The first layer has a protrusion part which extends into the first hole. The protrusion part covers the edge of the first opening of the first hole and at least a portion of the wall surface of the first hole.
Owner:KYOCERA CORP
Current interrupt devices using shape memory materials
Embodiments described herein relate to current interrupt devices (CIDs) for electrochemical cells that use a thermal trigger (e.g., shape memory and / or bi-metallic materials) to open an electrical circuit just prior to a thermal runaway or during short-circuit event to prevent catastrophic failure of the electrochemical cell. Embodiments include CIDs comprising a housing, a bus bar coupled to the housing, and a thermal trigger operably coupled to the bus bar. In some embodiments, the bus bar can include an engineered fracture site. In some embodiments, the thermal trigger is dimensioned and configured to deform at a predetermined temperature to break the bus bar at the engineered fracture site. In some embodiments, a portion of the bus bar travels about a hinge, opening the electrical circuit and preventing overcharging, thermal runaway, and / or other catastrophic failure events.
Owner:24M TECHNOLOGIES INC
Catalyst system for electrochemical reduction of carbon dioxide
PCT designated stageWO2025229144A1CellsElectrolytic organic productionElectrochemical responsePtru catalyst
Catalyst system for catalyzed electrochemical reactions comprising an electrically conductive support and a catalyst comprising indium and bismuth and zinc wherein the amount of zinc is 1- 50 wt.% based on the total amount of indium and bismuth and zinc, and gas-diffusion electrode comprising such catalyst system, electrochemical cell containing said gas-diffusion electrode and method for the electrochemical reduction of carbon dioxide with the help of such catalyst system.
Owner:AVANTIUM KNOWLEDGE CENT BV
Electrochemical cells with multiple separators, and methods of producing the same
Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.
Owner:24M TECHNOLOGIES INC
Niobium metal oxide
The present invention relates to a niobium metal oxide, niobium metal oxide secondary particles and a method for preparing the same, and a working electrode and an electrochemical cell comprising the niobium metal oxide secondary particles. The niobium metal oxide has the formula (I): NbxMyOz, where M is a metal selected from the group consisting of Ti, Zr, V, Cr, W and Mo, x is 2 to 18, z is 2.5 x + 3y and x / y is 1 to 3, and the crystal structure of the niobium metal oxide is a tetragonal tungsten bronze structure having four or eight pentagonal channels per cell, and a portion of the pentagonal channels is filled with-Nb-O-Nb-O-chains, and the remainder of the pentagonal channel is optionally embedded with lithium.
Owner:NYOBOLT LTD
Compression clamps for electrochemical stacks
The following disclosure relates to a compression tool for compressing a substack of electrochemical cells having a first plate, a second plate, and a plurality of electrochemical cells positioned between the first plate and the second plate. The compression tool is configured to be maintain on the substack after the substack is added to the electrochemical stack assembly and the electrochemical stack assembly commences operation of an electrolysis reaction.
Owner:ELECTRIC HYDROGEN CO
Electrochemical cells with multiple separators, and methods of producing the same
Embodiments described herein relate to electrochemical cells with multiple separators, and methods of producing the same. A method of producing an electrochemical cell can include disposing an anode material onto an anode current collector, disposing a first separator on the anode material, disposing a cathode material onto a cathode current collector, disposing a second separator onto the cathode material, and disposing the first separator on the second separator to form the electrochemical cell. The anode material and / or the cathode material can be a semi-solid electrode material including an active material, a conductive material, and a volume of liquid electrolyte. In some embodiments, less than about 10% by volume of the liquid electrolyte evaporates during the forming of the electrochemical cell. In some embodiments, the method can further include wetting the first separator and / or the second separator with an electrolyte solution prior to coupling the first separator to the second separator.
Owner:24M TECHNOLOGIES INC