Patent application number | Description | Published |
20100009243 | ELECTROCHEMICAL ENERGY CELL SYSTEM - A metal halogen electrochemical energy cell system that generates an electrical potential. One embodiment of the system includes at least one cell including at least one positive electrode and at least one negative electrode, at least one electrolyte, a mixing venturi that mixes the electrolyte with a halogen reactant, and a circulation pump that conveys the electrolyte mixed with the halogen reactant through the positive electrode and across the metal electrode. Preferably, the positive electrode comprises porous carbonaceous material, the negative electrode comprises zinc, the metal comprises zinc, the halogen comprises chlorine, the electrolyte comprises an aqueous zinc-chloride electrolyte, and the halogen reactant comprises a chlorine reactant. Also, variations of the system and a method of operation for the systems. | 01-14-2010 |
20100021805 | Electrochemical energy generation system - An electrochemical energy generation system can include a sealed vessel that contains inside (i) at least one electrochemical cell, which has two electrodes and a reaction zone between them; (ii) a liquefied halogen reactant, such as a liquefied molecular chlorine; (iii) at least one metal halide electrolyte; and (iv) a flow circuit that can be used for delivering the halogen reactant and the electrolyte to the at least one cell. The sealed vessel can maintain an inside pressure above a liquefication pressure for the halogen reactant. Also disclosed are methods of using and methods of making for electrochemical energy generation systems. | 01-28-2010 |
20100136455 | Common Module Stack Component Design - A stack for use in a flow battery, the stack comprising an odd number of interior elements positioned between two end elements, the two end elements each including an electrode, and the odd number of interior elements including membrane elements alternating with electrode elements, wherein the membrane elements include an interior frame and a membrane, the electrode elements include the interior frame and an electrode, wherein the interior frame is rotated by 180° from the frame of the membrane elements. | 06-03-2010 |
20110070468 | ELECTROCHEMICAL ENERGY CELL SYSTEM - A metal halogen electrochemical energy cell system that generates an electrical potential. One embodiment of the system includes at least one cell including at least one positive electrode and at least one negative electrode, at least one electrolyte, a mixing venturi that mixes the electrolyte with a halogen reactant, and a circulation pump that conveys the electrolyte mixed with the halogen reactant through the positive electrode and across the metal electrode. Preferably, the positive electrode comprises porous carbonaceous material, the negative electrode comprises zinc, the metal comprises zinc, the halogen comprises chlorine, the electrolyte comprises an aqueous zinc-chloride electrolyte, and the halogen reactant comprises a chlorine reactant. Also, variations of the system and a method of operation for the systems. | 03-24-2011 |
20110074357 | CONTROL SYSTEM FOR A FLOW CELL BATTERY - A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state. | 03-31-2011 |
20110081562 | OPTICAL LEAK DETECTION SENSOR - A leak detection sensor for detecting a leakage of an electrolyte solution in a flow battery system is provided. The sensor includes a sensor housing, the sensor housing being at least partially surrounded by a fluid and having mounted therein at least one light source. The device also includes at least one light detector, wherein light emitted from at least one light source is incident on a portion of the housing in contact with a fluid and is at least partially refracted by an amount which is dependent on a refractive index of the refractor lens and the surrounding fluid, such that the amount of refraction at the refractor lens and the surrounding fluid causes a loss in a power of light detected by the at least one light detector, the light detector determines the intensity of the detected light, determines the composition of fluid surrounding the device housing based on the based on the difference between the measured light intensity and the intensity of light produced by the light source, and determines a leak if the composition of fluid is determined to be an electrolyte solution. | 04-07-2011 |
20110200853 | Shunt current interruption in electrochemical energy generation system - An electrochemical energy generation system includes plural electrochemical cells connected electrically in series that utilize a common electrolyte that can be delivered to each of the cells and/or collected from each of the cells using one or more manifolds. The system provides a possibility for reducing shunt currents by applying a shunt-current minimizing voltage to terminals of the manifolds from the terminal electrodes of the cells connected in series. | 08-18-2011 |
20110223451 | METAL ELECTRODE ASSEMBLY FOR FLOW BATTERIES - A flow battery electrode assembly with a first impermeable, substantially metal electrode, a second permeable, substantially metal electrode and at least one electrically conductive spacer. The electrically conductive spacer connects the first impermeable, substantially metal electrode and the second permeable, substantially metal electrode such that the first impermeable, substantially metal electrode and the second permeable, substantially metal electrode are spaced apart from each other by an electrolyte flow path. | 09-15-2011 |
20110318619 | Metal Halogen Electrochemical Cell System - A metal halogen electrochemical energy cell system that generates an electrical potential. One embodiment of the system includes at least one cell including at least one positive electrode and at least one negative electrode, at least one electrolyte, a mixing venturi that mixes the electrolyte with a halogen reactant, and a circulation pump that conveys the electrolyte mixed with the halogen reactant through the positive electrode and across the metal electrode. Preferably, the positive electrode comprises porous carbonaceous material, the negative electrode comprises zinc, the metal comprises zinc, the halogen comprises chlorine, the electrolyte comprises an aqueous zinc-chloride electrolyte, and the halogen reactant comprises a chlorine reactant. Also, variations of the system and a method of operation for the systems. | 12-29-2011 |
20120028096 | ELECTROCHEMICAL ENERGY GENERATION SYSTEM - An electrochemical energy generation system can include a sealed vessel that contains inside (i) at least one electrochemical cell, which has two electrodes and a reaction zone between them; (ii) a liquefied halogen reactant, such as a liquefied molecular chlorine; (iii) at least one metal halide electrolyte; and (iv) a flow circuit that can be used for delivering the halogen reactant and the electrolyte to the at least one cell. The sealed vessel can maintain an inside pressure above a liquefication pressure for the halogen reactant. Also disclosed are methods of using and methods of making for electrochemical energy generation systems. | 02-02-2012 |
20120058370 | Flow Battery With Radial Electrolyte Distribution - An electrochemical flow cell includes a permeable electrode, an impermeable electrode located adjacent to and spaced apart from the permeable electrode and a reaction zone electrolyte flow channel located between a first side of the permeable electrode and a first side of the impermeable electrode. The electrochemical flow cell also includes at least one electrolyte flow channel located adjacent to a second side of the permeable electrode, at least one central electrolyte flow conduit extending through a central portion of the permeable electrode and through a central portion of the impermeable electrode and at least one peripheral electrolyte flow inlet/outlet located in a peripheral portion of the electrochemical cell above or below the permeable electrode. | 03-08-2012 |
20120129021 | Electrochemical Energy System - An electrochemical energy generation system can include a sealed vessel that contains inside (i) at least one electrochemical cell, which has two electrodes and a reaction zone between them; (ii) a liquefied halogen reactant, such as a liquefied molecular chlorine; (iii) at least one metal halide electrolyte; and (iv) a flow circuit that can be used for delivering the halogen reactant and the electrolyte to the at least one cell. The sealed vessel can maintain an inside pressure above a liquefication pressure for the halogen reactant. Also disclosed are methods of using and methods of making for electrochemical energy generation systems. | 05-24-2012 |
20120219832 | High Temperature Metal-Halogen Flow Battery with Non-Aqueous Molten Salt Electrolyte - An apparatus including at least one electrochemical flow cell in which the electrochemical flow cell includes an anode electrode, a cathode electrode and a reaction zone between the anode and the cathode. The electrochemical flow cell also includes an electrolyte storage reservoir configured to hold a molten salt electrolyte and a gas generated during charging of the at least one electrochemical flow cell and at least one conduit configured to supply the molten salt electrolyte and the gas from the storage reservoir to the at least one electrochemical flow cell. The electrochemical flow cell also includes at least one pump configured to pump the molten salt electrolyte from the storage reservoir to the reaction zone. | 08-30-2012 |
20120282501 | Metal Electrode Assembly for Flow Batteries - A flow battery electrode assembly including a first impermeable, substantially metal electrode consisting essentially of a metal and a second permeable electrode. The assembly also includes at least one electrically conductive spacer connecting the first impermeable, substantially metal electrode and the second permeable electrode such that the first impermeable, substantially metal electrode and the second permeable electrode are spaced apart from each other by an electrolyte flow path. At least one electrically conductive spacer includes a plurality of electrically conductive spacers which mechanically and electrically connect adjacent first impermeable, substantially metal and second permeable electrodes. | 11-08-2012 |
20120328910 | Electrolyte Flow Configuration for a Metal-Halogen Flow Battery - A flow battery and method of operating a flow battery. The flow battery includes a first electrode, a second electrode and a reaction zone located between the first electrode and the second electrode. The flow battery is configured with a first electrolyte flow configuration in charge mode and a second flow configuration in discharge mode. The first electrolyte flow configuration is at least partially different from the second electrolyte flow configuration. | 12-27-2012 |
20130029185 | Electrochemical System Having a System for Determining a State of Charge - An electrochemical system, such as a flow battery, includes a vessel. The vessel contains at least one cell that includes a first electrode, a second electrode and a reaction zone between the first and second electrodes. The vessel also contains a flow circuit configured to deliver a fluid comprising a liquefied halogen reactant and at least one metal halide electrolyte to the at least one cell, and at least one sensor configured to measure a property of the electrochemical system indicative of a state of charge (SOC) of the electrochemical system. | 01-31-2013 |
20130045399 | Flow Battery with Reactant Separation - An embodiment relates an electrochemical system. The system includes (a) at least one cell that comprises a first electrode, a second electrode and a reaction zone between the first and second electrode. The system also includes (b) a liquefied halogen reactant (c) at least one metal halide electrolyte and (d) a flow circuit configured to deliver the halogen reactant and the at least one metal-halide electrolyte to the at least one cell. The flow circuit includes an electrolyte reservoir and a halogen reactant/electrolyte separation device comprising a halophilic material. | 02-21-2013 |
20130188190 | OPTICAL LEAK DETECTION SENSOR - A leak detection sensor for detecting a leakage of an electrolyte solution in a flow battery system is provided. The sensor includes a sensor housing, the sensor housing being at least partially surrounded by a fluid and having mounted therein at least one light source. The device also includes at least one light detector, wherein light emitted from at least one light source is incident on a portion of the housing in contact with a fluid and is at least partially refracted by an amount which is dependent on a refractive index of the refractor lens and the surrounding fluid, such that the amount of refraction at the refractor lens and the surrounding fluid causes a loss in a power of light detected by the at least one light detector, the light detector determines the intensity of the detected light, determines the composition of fluid surrounding the device housing based on the based on the difference between the measured light intensity and the intensity of light produced by the light source, and determines a leak if the composition of fluid is determined to be an electrolyte solution. | 07-25-2013 |
20130266829 | Fluidic Architecture for Metal-Halogen Flow Battery - A metal-halogen flow battery system includes a stack of flow cells, an electrolyte reservoir and one or more of a concentrated halogen return line fluidly connecting the stack to the reservoir, a venturi, a mixer, a concentrated halogen pump, or a concentrated halogen line heater. | 10-10-2013 |
20130280629 | METAL HALOGEN ELECTROCHEMICAL CELL SYSTEM - A metal halogen electrochemical energy cell system that generates an electrical potential. One embodiment of the system includes at least one cell including at least one positive electrode and at least one negative electrode, at least one electrolyte, a mixing venturi that mixes the electrolyte with a halogen reactant, and a circulation pump that conveys the electrolyte mixed with the halogen reactant through the positive electrode and across the metal electrode. Preferably, the positive electrode comprises porous carbonaceous material, the negative electrode comprises zinc, the metal comprises zinc, the halogen comprises halogen, the electrolyte comprises an aqueous zinc-halide electrolyte, and the halogen reactant comprises a halogen reactant. Also, variations of the system and a method of operation for the systems. | 10-24-2013 |
20140028249 | PULSE CHARGING OF A GRID INTERACTIVE BATTERY SYSTEM - A system for pulse charging a battery includes a battery module, an inverter, and a pulse apparatus connected to the inverter and the battery module and configured to pulse charge the battery module by modulating a power output from the inverter. A method of pulse charging a battery module includes the steps of converting AC power output from a power grid to constant DC power, modulating the constant DC power to produce modulated power, and providing the modulated power to the battery module to pulse charge the battery module. | 01-30-2014 |
20140093804 | METAL-HALOGEN FLOW BATTERY WITH SHUNT CURRENT INTERRUPTION AND SEALING FEATURES - A flow battery includes a stack of flow cells, a stack of cell frames supporting the stack of cells, stack level and cell level flow manifolds located in the stack of cell frames, and at least one sealing or shunt current mitigation feature. | 04-03-2014 |
20140139190 | CONTROL SYSTEM FOR A FLOW CELL BATTERY - A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state. | 05-22-2014 |
20140287335 | SYSTEMS AND METHODS FOR SHUNT CURRENT AND MECHANICAL LOSS MITIGATION IN ELECTROCHEMICAL SYSTEMS - Systems and methods for shunt current and mechanical loss mitigation in electrochemical systems include a conduit providing at least a portion of an electrically conductive pathway between the first and second electrochemical cells, wherein the conduit includes at least one shunt current suppression device configured as a loop, and/or a connector assembly for maintaining first and second connecting portions in adjacent positioning. | 09-25-2014 |
20140308547 | Fluidic Architecture for Metal-Halogen Flow Battery - A metal-halogen flow battery system includes a stack of flow cells, an electrolyte reservoir and one or more of a concentrated halogen return line fluidly connecting the stack to the reservoir, a venturi, a mixer, a concentrated halogen pump, or a concentrated halogen line heater. | 10-16-2014 |