Class / Patent application number | Description | Number of patent applications / Date published |
320167000 | For large capacitance (e.g., "super" capacitor, memory backup capacitor, etc.) | 69 |
20080246443 | System and Method for Boosting Battery Output - Electrical systems and methods are described. | 10-09-2008 |
20080303488 | SYSTEMS AND METHODS FOR CHARGING SUPER CAPACITORS - Systems and methods are provided for charging a super capacitor bank. One method provides for determining a charge voltage for the super capacitor bank, providing a charging current, limiting the charging current according to a corresponding worst case temperature within the super capacitor bank operating temperature range, limiting the charge voltage according to the worst case temperature, and turning off the charging current once the super capacitor bank is charged. One system provides a super capacitor bank for storing energy providing specified power demand to a circuit, a current charger providing charging current to the super capacitor bank, the charging current limited in accordance with a corresponding worst case temperature within the super capacitor bank operating temperature range, a voltage sense circuit to detect the super capacitor bank voltage, and a control to disconnect the current charger from the super capacitor bank once the super capacitor bank is charged. | 12-11-2008 |
20080309295 | Detachable Charge Control Circuit for Balancing the Voltage of Supercapacitors Connected in Series - A supercapacitors voltage balancing device ( | 12-18-2008 |
20090015211 | METHOD AND RELATED DEVICE FOR CHARGING AT THE SAME VOLTAGE TWO OR MORE CAPACITORS CONNECTED IN SERIES - A device, such as a pump capacitor or an energy storing inductor, is charged by coupling it to a voltage source. Thereafter, the device is connected in parallel to one of the capacitors or capacitance cells to be charged, and the charging of the device and successive connections of it in parallel to a selected capacitor of the series of capacitors for charging it are replicated for all the capacitors of the series. The sequence of different connections of the device to the charge voltage source and to the selected one of the capacitors of the series is actuated through a plurality of coordinately controlled switches that establish distinct current circulation paths, according to a switched-capacitor or switched inductor techniques driven by respective periodic control signals that may be generated from a master clock signal. | 01-15-2009 |
20090027014 | Capacitor save energy verification - A memory subsystem is configured to obtain power from an external system and from at least one power capacitors. The memory subsystem includes logic to verify the power delivery capability of the power capacitors. | 01-29-2009 |
20090058371 | AUXILIARY ELECTRIC POWER SUPPLY FOR VEHICLE AND CHARGER/DISCHARGER FOR VEHICLE - The auxiliary electric power supply for a vehicle has a first switch electrically connected to an I/O end; a capacitor bank; a discharge resistance; and a controller. The capacitor bank has series-connected electric double layer capacitors, and balanced resistances. Each of the balanced resistance is parallel-connected to each electric double layer capacitor, and has substantively the same resistance value. The capacitor bank and discharge resistance are connected to the first switch. The controller controls the first switch while monitoring the voltage of the capacitor bank and the operating state of the ignition key operating the ignition switch of the vehicle, so as to connect the capacitor bank to the discharge resistance when the ignition switch is turned off. | 03-05-2009 |
20090091302 | METHOD OF CHARGING AND DISCHARGING OF SUPERCAPACITORS WITHOUT THE USE OF CONVERTERS OR CHARGERS - An electrical power system may be provided with temporary power from a bank of supercapacitors connected to a bus of the power system. The supercapacitors may be charged from an output from a primary power source of the system during start-up of the power source. Output voltage of the primary power source may progressively increase and capacitor charging may occur at this progressively increasing voltage. Dedicated current-limiting devices are not required during charging. When temporary power is required the supercapacitors may be discharged sequentially in a series combination so that a high internal voltage of each capacitor is maintained and so that virtually all of the stored energy of the capacitor may be discharged to the bus at a usable voltage. | 04-09-2009 |
20090230926 | System and method for charging capacitors using automatic cell balancing - A circuit for charging a capacitor block including series-connected capacitive elements has an input node for receiving an input, an output node coupled to the capacitor block, a third capacitive element connectable to the input node and the output node, and first and second switching circuitries coupled to the third capacitive element. A voltage sensor determines a relationship between first voltage at the first capacitive element and second voltage at the second capacitive element to separately control switching of the first and second switching circuitries in accordance with the relationship between the voltages. | 09-17-2009 |
20090302807 | Motor Vehicle - A motor vehicle includes an on-board vehicle electric system, an electric consumer, whose resistance decreases with the decreasing voltage dropping at the consumer, an electric energy accumulator, and a switching arrangement. The switching arrangement is designed and is connected or connectable to the on-board vehicle electric system, the consumer and the energy accumulator such that in a first switching position, the energy accumulator, and in a second switching position, the switching arrangement, is connected in parallel to the on-board vehicle electric system. The energy accumulator in the second switching position is connected in series to the consumer, and the energy accumulator in the first switching position is not connected in series to the consumer. | 12-10-2009 |
20090322289 | SYSTEM AND METHOD FOR PERFORMING ULTRACAPACITOR CELL BALANCING - A circuit for balancing a sub-stack voltage in a stack of ultracapacitors includes a pair of electrical leads that are connectable across a first sub-stack of one or more ultracapacitors, wherein a stack includes N sub-stacks of ultracapacitors coupled to an electrical bus, a discharge device switchably connectable with the pair of electrical leads, the discharge device configured to discharge the sub-stack of ultracapacitors, a voltage sensing circuit coupled to the electrical bus and configured to sense and output a voltage of the stack of ultracapacitors after the first sub-stack of one or more ultracapacitors has been discharged to a given threshold, and a voltage amplifier coupled to the output of the voltage sensing circuit and coupled to the pair of electrical leads, the voltage amplifier configured to provide a re-charge voltage to the first sub-stack of one or more ultracapacitors. | 12-31-2009 |
20100019737 | METHOD AND DEVICE FOR CHARGING AN ELECTRICAL ENERGY STORAGE ELEMENT, IN PARTICULAR AN ULTRACAPACITOR - The device according to the invention for charging a first electrical energy storage element ( | 01-28-2010 |
20100039072 | EQUALIZING METHOD AND CIRCUIT FOR ULTRACAPACITORS - An equalizing method for ultracapacitor cell packs and/or series connected ultracapacitors. | 02-18-2010 |
20100141220 | SERIES ELECTRIC DOUBLE-LAYER CAPACITOR DEVICE - [Problems] To provide a series electric double-layer capacitor device having a simple structure eliminating nonuniform voltages induced among electric double-layer capacitors (C | 06-10-2010 |
20100156359 | SYSTEMS AND METHODS OF CHARGING SUPER-CAPACITORS - Systems and methods for charging a super-capacitor are disclosed. An exemplary method may include outputting a controllable signal, such as a pulse width modulated (PWM) signal, to control a charging circuit. The method may also include determining system voltage. The method may also include reducing a duty cycle of the controllable signal if the system voltage is in regulation, and increasing the duty cycle of the controllable signal if the system voltage is out of regulation to reduce brown-outs during charging of the super-capacitor. | 06-24-2010 |
20100225283 | FAST CHARGING ELECTRONIC SYSTEM - A fast charging electronic system includes an adapter having an interface module adapted to receive an input voltage from an external source, and an adapter port electrically connected to the interface module to output the input voltage. The fast charging electronic system further includes a wireless electronic device having a charging port removably and electrically connected to the adapter port of the adapter to receive the input voltage output therefrom, a charging module electrically connected to the charging port to receive the input voltage and convert the input voltage into a charge electrical energy, and a supercapacitor electrically connected to the charging module to receive the charge electrical energy therefrom for storage of an operating electrical energy, and outputting the operating electrical energy to enable operation of the wireless electronic device. | 09-09-2010 |
20100270983 | City Electric Bus Powered by Ultracapacitors - Described are a method and apparatus for charging an electric vehicle powered by ultracapacitors. The vehicle includes a current collector device for collecting power from an external power source, an electric motor module for providing a driving force to the vehicle, an ultracapacitor module, and a charger device. The ultracapacitor module includes one or more ultracapacitors. The ultracapacitor module is coupled to the current collector device for receiving power and is coupled to the electric motor module for providing power. The charger device is connected to the current collector, the ultracapacitor module, and to a temperature signal associated with one or more of the one or more ultracapacitors. The charger device is configured to adjust power supplied to the ultracapacitor module based on the temperature signal. | 10-28-2010 |
20100315046 | SYSTEM FOR ENERGY HARVESTING AND/OR GENERATION, STORAGE, AND DELIVERY - A device and method for harvesting, generating, storing, and delivering energy to a load, particularly for remote or inaccessible applications. The device preferably comprises one or more energy sources, at least one supercapacitor, at least one rechargeable battery, and a controller. The charging of the energy storage devices and the delivery of power to the load is preferably dynamically varied to maximize efficiency. A low power consumption charge pump circuit is preferably employed to collect power from low power energy sources while also enabling the delivery of higher voltage power to the load. The charging voltage is preferably programmable, enabling one device to be used for a wide range of specific applications. | 12-16-2010 |
20110012569 | POWER DEVICE OF CLEAN REMOCON - Provided is a power device of a clean remote control that is designed to instantly and fully charge voltage required for driving the clean remote by supplying a commercial alternating current power using a super capacitor as a voltage storage unit. The clean remote control includes a key matrix, a controller, and a transceiver. The electric device includes a plug connected to a socket outlet supplying a commercial alternating current power, a rectification/constant-voltage unit for converting the commercial alternating current voltage supplied from the plug into a direct current voltage by rectifying the commercial alternating current power and for constantly maintaining the direct current voltage, a charging unit that is instantly and fully charged with the direct current voltage supplied from the rectification/constant-voltage, a controller for controlling an instant charge of the charging unit, and an over-voltage protection unit for preventing an excessive charge/discharge of the charging unit by monitoring the charging unit. | 01-20-2011 |
20110121793 | FAST CHARGER FOR SUPER CAPACITOR - This invention proposes a novel charging method for improving the efficiency of charging a super capacitor. The method comprises the steps of: charging the super capacitor with a first current; measuring a voltage of the super capacitor; stopping the supply of the first current when the measured voltage reaches a pre-defined voltage value; monitoring a voltage variation of the super capacitor; charging the super capacitor with a second current when the monitored voltage variation exceeds a pre-defined threshold within a pre-defined period. By using said two-phase charging, especially when using two different charging currents, it is easier to improve the charging efficiency without degrading the charging speed. | 05-26-2011 |
20110175579 | SYSTEM AND METHOD FOR PROVIDING AUXILIARY POWER BY REGENERATION POWER MANAGEMENT IN MOBILE MINING EQUIPMENT - A method for operating an ultracapacitor system used in a mining excavator powered by an electrical power source. The method includes the step of detecting whether a line power from the electrical power source is present. Next, a voltage level of the ultracapacitor system is measured if the line power is not present. The measured voltage level is then compared with a minimum voltage level for the ultracapacitor system. If the measured voltage level is more than the minimum voltage level, auxiliary power is supplied from the ultracapacitor system to operate mining excavator systems. The auxiliary power may be used to power electronic systems and components such as computers, displays, control systems, gas insulated switchgear and lighting systems. | 07-21-2011 |
20110248685 | INDUCTIVE CHARGING OF ELECTRICAL ENERGY STORAGE COMPONENTS - According to aspects of the present invention, systems and methods are provided for faster charging of electrical energy storage components such as supercapacitors while maintaining the safety limits. In one or more exemplary embodiments, a flyback transformer is used to provide constant energy charging to the supercapacitor several times faster than in conventional systems or methods, due to the high frequency output of the flyback transformer, while not exceeding the power output rating of the power supply. According to one embodiment, a cycle-by-cycle energy transfer limit is used to charge one or more supercapacitors. | 10-13-2011 |
20110254515 | CHARGE CONTROL DEVICE - A charge control device of the disclosure including a charger to perform a constant current charge control to maintain a charge current to an electric double-layer capacitor as a predetermined charge current value for a constant current charge period after a beginning of a charge of the electric double-layer capacitor. | 10-20-2011 |
20110267011 | Super Conducting Super Capacitor - A super conducting super capacitor and method forming massive embedded capacitors connected in parallel over a very wide radius that can vary from a few square feet to hundreds or thousands of square miles, and more, is disclosed. The super conducting super capacitor is formed within a water proof vacuum housing to keep out water and humidity by depositing a plurality of alternating layers of dielectric material between each layer of conducting material, whereby one or more electrodes are situated on each dielectric layer, thus forming a super conducting super capacitor having at least one probe electrode exuding from said housing, and connected to the one or more electrodes, for receiving electric charge from a lightning source for example. One can contemplate many dielectric layers separating many conductor layers from a few layers to thousands, and possibly even millions or more layers delineated, for example, to define a multilayer capacitive structure capable of providing electric power to supplement or replace other sources of electric power that harm the environment. | 11-03-2011 |
20110304305 | APPARATUS AND METHOD FOR A CAPACITIVE ELEMENT IN A STRUCTURE - In accordance with an example embodiment of the present invention, an apparatus is provided, comprising first and second circuit boards, and an electrolyte, the first and second circuit boards each comprising a capacitive element, the apparatus being configured such that a chamber is defined between the first and second circuit boards with the capacitive elements contained therein and facing one another, the chamber comprising the electrolyte, the apparatus being configured to store electrical charge when a potential difference is applied between the capacitive elements, and the apparatus further comprising an electrical connector between the first and second circuit boards, the electrical connector configured to enable a flow of electrical charge from the capacitive elements to provide power to one or more electrical components when the apparatus discharges. | 12-15-2011 |
20120038328 | Systems and Methods for Charging Super Capacitors - Systems and methods are provided for charging a super capacitor bank. One method provides for determining a charge voltage for the super capacitor bank, providing a charging current, limiting the charging current according to a corresponding worst case temperature within the super capacitor bank operating temperature range, limiting the charge voltage according to the worst case temperature, and turning off the charging current once the super capacitor bank is charged. One system provides a super capacitor bank for storing energy providing specified power demand to a circuit, a current charger providing charging current to the super capacitor bank, the charging current limited in accordance with a corresponding worst case temperature within the super capacitor bank operating temperature range, a voltage sense circuit to detect the super capacitor bank voltage, and a control to disconnect the current charger from the super capacitor bank once the super capacitor bank is charged. | 02-16-2012 |
20120043945 | APPARATUS FOR EQUALIZING VOLTAGE USING TIME SWITCH - There is provided an apparatus for equalizing voltage using a time switch. The apparatus for equalizing voltage includes a plurality of energy storage unit cells connected in series; a single first balance capacitor connected with each energy storage unit cell in parallel through the first switch module for equally charging voltage between the plurality of energy storage unit cells; and a first switch module including a plurality of switches disposed between each energy storage unit cell and the first balance capacitor to sequentially open and close the connection between each energy storage unit cell and the first balance capacitor, whereby the voltage unbalance between the energy storage unit cells can be prevented at low cost. | 02-23-2012 |
20120056600 | CAPACITOR VEHICLE HAVING HIGH SPEED CHARGING ABILITY AND METHOD OF OPERATING A CAPACITOR VEHICLE - A vehicle is provided that includes a capacitor situated on the vehicle adapted to be charged by a source separate from the vehicle. The capacitor is adapted to be charged at a rate faster than a maximum charge rate of a battery of the vehicle. The vehicle also includes a charging circuit coupled to the capacitor and adapted to receive electrical charge from the capacitor and regulate the flow of electrical charge below the maximum charge rate of the battery. The vehicle also includes the battery coupled to the charging circuit and adapted to be charged by electrical charge flowing from the capacitor through the charging circuit, and an electric motor adapted to be energized by the battery to propel the vehicle. A method for operating a vehicle is provided that includes charging a capacitor arranged in the vehicle from a source separate from the vehicle. | 03-08-2012 |
20120062186 | METHOD OF CONTROLLING AN ENERGY STORAGE UNIT IN A VEHICLE MICRO-HYBRID SYSTEM - A method of controlling a supercapacitor energy storage unit ( | 03-15-2012 |
20120062187 | AUXILIARY POWER DEVICE, MEMORY SYSTEM HAVING THE SAME, AND CELL BALANCING METHOD THEREOF - An auxiliary power device includes an auxiliary power source having first and second charging cells connected in series, a cell balance circuit configured to sense a charging voltage between the first and second charging cells, generate a balance voltage based on the sensed charging voltage, and applies the generated balance voltage between the first and second charging cells, and a microprocessor configured to diagnose the first and second charging cells based on the sensed charging cells and control the cell balance circuit. | 03-15-2012 |
20120068669 | System for Energy Harvesting and/or Generation, Storage, and Delivery - A device and method for harvesting, generating, storing, and delivering energy to a load, particularly for remote or inaccessible applications. The device preferably comprises one or more energy sources, at least one supercapacitor, at least one rechargeable battery, and a controller. The charging of the energy storage devices and the delivery of power to the load is preferably dynamically varied to maximize efficiency. A low power consumption charge pump circuit is preferably employed to collect power from low power energy sources while also enabling the delivery of higher voltage power to the load. The charging voltage is preferably programmable, enabling one device to be used for a wide range of specific applications. | 03-22-2012 |
20120119710 | Charging Circuit for a Charge Accumulator and Method for Charging the Same - In one embodiment, a charging circuit for a charge accumulator comprises a first terminal (A | 05-17-2012 |
20120126757 | CIRCUIT FOR STORING ELECTRICAL ENERGY - A circuit for storing electrical energy, in particular for installation within a motor vehicle, comprises at least one capacitor and a temperature-dependent resistor by means of which the at least one capacitor can be charged. The circuit may be included in a motor vehicle. Alternatively, a motor vehicle may be retrofit to include the circuit. | 05-24-2012 |
20120161721 | POWER HARVESTING SYSTEMS - A power harvesting system for providing energy to operate a coupled electrical device. The power harvesting system comprises a charging device and a wireless switching device operably coupled to the charging device. The charging device is configured for charging the wireless switching device and comprises a first RF transceiver for communicating with the wireless switching device and a power transmitter for imparting power to the wireless switching device. The wireless switching device comprises a second RF transceiver for communicating with the charging device, a power receiver operably coupled to the power transmitter, the power receiver configured for receiving power from the power transmitter, a rectifier circuit coupled to the power receiver, the rectifier circuit configured for converting the received power into DC energy and at least one ultra-capacitor electrically coupled to the rectifier circuit, the ultra-capacitor configured for storing the DC energy. | 06-28-2012 |
20120161722 | SYSTEM AND METHOD FOR CHARGING CAPACITORS USING AUTOMATIC CELL BALANCING - A circuit for charging a capacitor block including series-connected capacitive elements has an input node for receiving an input, an output node coupled to the capacitor block, a third capacitive element connectable to the input node and the output node, and first and second switching circuitries coupled to the third capacitive element. A voltage sensor determines a relationship between first voltage at the first capacitive element and second voltage at the second capacitive element to separately control switching of the first and second switching circuitries in accordance with the relationship between the voltages. | 06-28-2012 |
20120200267 | System for Storing Electric Energy - The invention concerns a system for storing electric energy, which comprises a plurality of storage cells, which have each an operating voltage. An electrical load as well as a switching element are arranged in series with the load in parallel to a storage cell. The switching element is closed when reaching or exceeding a threshold voltage. The system includes a control device, which is arranged in order to control the switching element in such a way that the storage cell is discharged via the electrical load. The invention moreover concerns a storage cell for storing electric energy. | 08-09-2012 |
20120229101 | ELECTRICAL ENERGY BUFFERING SYSTEM - Electrical energy buffering system, comprising an energy source for delivering electrical energy, an energy buffer for buffering electrical energy delivered from the energy source, the energy buffer comprising a plurality of supercapacitors, and control logic for controlling the operation of the energy buffer by selectively switching the supercapacitors, wherein the plurality of supercapacitors are switchably connected in parallel to each other in a circuit comprising the energy source and an electrical power output, and the control logic comprises a buffer monitor for monitoring a parameter representing the charge or discharge state, respectively, of each of the supercapacitors and is adapted to sequentially switch single supercapacitors or groups of supercapacitors on, responsive to the detection of a first predetermined charge or discharge state, respectively, and to switch them off, responsive to the detection of a second predetermined charge or discharge state, respectively. | 09-13-2012 |
20120249089 | Nickel-Cobalt Supercapacitors and Methods of Making Same - Improved capacitors containing novel electrodes are described. One electrode composition comprises mixed metal oxides of the transition metals nickel and cobalt in a molar ratio of 0.5:1 or greater, and optionally containing a binder and carbon nanotubes. The resulting capacitors can be characterized by superior properties including higher specific capacitance values at higher voltage scan rates than the prior art. Methods of forming the electrodes that produce superior results are also described. | 10-04-2012 |
20120262127 | FLOW ULTRACAPACITOR - The present application is generally directed towards electrochemical energy storage devices. The devices comprise electrode material suspended in an appropriate electrolyte. Such devices are capable of achieving economical $/kWh(cycle) values and will enable much higher power and cycle life than currently used devices. | 10-18-2012 |
20120268080 | AUXILIARY POWER SUPPLY AND USER DEVICE INCLUDING THE AUXILIARY POWER SUPPLY - Auxiliary power supplies include a capacitor (e.g., super capacitor) and a capacitor charging circuit, which is configured to provide a charging current to a first terminal of the capacitor. Enhanced failure detection is provided by a capacitor monitoring circuit, which may be electrically coupled to at least one terminal of the capacitor. The capacitor monitoring circuit is configured to detect when the capacitor is malfunctioning in an open condition as well as when the capacitor is malfunctioning in a short condition. | 10-25-2012 |
20130069603 | METHOD TO MONITOR SAFE OPERATION OF AN ULTRACAPACITOR - A container of an electrochemical double-layer capacitor for holding electrodes and electrolyte includes a housing having a cavity and a cap portion coupled to the housing forming a fluid-tight reservoir with the cavity. The container also includes a plurality of terminals incorporated into one or more of the housing or the cap portion, where the plurality of terminals adapted to be electrically coupled to the electrodes, and a pressure-compliant membrane incorporated into one of the housing or the cap portion. A pressure monitoring system that monitors the pressure inside the container includes a displacement measuring device adapted to measure a deflection of the pressure-compliant membrane. | 03-21-2013 |
20130113440 | ELECTRIC ACTUATOR - A most recent electrostatic capacitance value for a backup capacitor is measured periodically. Each time the most recent electrostatic capacitance value is measured, a charging voltage (a required charging voltage) that is required in order to cause a return operation of a valve from the setting opening at that time to an emergency opening/closing position (for example, the fully closed position) is calculated based on the electrostatic capacitance value that has been measured, and the terminal voltage of the backup capacitor is adjusted so as to become equal to the calculated required charging voltage. | 05-09-2013 |
20130113441 | ELECTRIC ACTUATOR - A most recent electrostatic capacitance value for a backup capacitor is measured periodically. Each time the most recent electrostatic capacitance value is measured, a charging voltage (a required charging voltage) that is required in order to cause a return operation of a valve from the setting opening at that time to an emergency opening/closing position (for example, the fully closed position) is calculated based on the electrostatic capacitance value that has been measured. If the required charging voltage that has been calculated is higher than the terminal voltage that has been detected, then a value for a charging current value is determined based on the actual degree of opening and the setting opening of the valve, and the backup capacitor is charged until the terminal voltage reaches the required charging voltage. | 05-09-2013 |
20130147441 | Automatic Tuning Method for Energy Storage System of Railway Vehicle - An automatic tuning method is developed for an energy storage system of the railway vehicle. The method comprises; an optimal tracking for voltage fluctuation in the overhead line voltage varying with hourly-basis, the voltage variation of the substation and railway vehicle operating pattern. The railway vehicle is automatically performed the tuning to maximize the energy storing efficiency. The railway vehicle can achieve the optimum operation for saving energy effectively by bidirectional DC/DC converter using regenerative energy of DC. The railway vehicle stably operates under the overhead line voltage fluctuation. The energy efficiency is maximized by charging/discharging energy while the power is tracking unstable, which is generated by utilizing natural energies such as wind or solar energy, in real time by applying an automatic tuning algorithm to an energy storage system which is applied to a smart grid or a micro grid that uses renewable energy as a primary energy source. | 06-13-2013 |
20130154581 | AUDIENCE RESPONSE SYSTEM WITH BATTERYLESS RESPONSE UNITS - A wireless response system and method of receiving user input selections at a base station includes distributing a plurality of response units to users. The response units wirelessly communicate with the base station in order to retrieve user responses received by the response units. Each of the response units has a user input device that is configured to receiving user input selections, a controller that is responsive to the user input device to process user inputs and to communicate responses wirelessly to the base station and a power supply having a super capacitor. The super capacitor is charged with a wireless-charging circuit and current is supplied from the super capacitor to the controller. Current supplied to the controller is controlled. | 06-20-2013 |
20130200860 | CHARGE CONTROL METHOD AND DISCHARGE CONTROL METHOD FOR ELECTRIC STORAGE APPARATUS - According to the charge control method of the present invention, as an electric storage means, a group of capacitors is used that include 2n (where n is an integer of 2 or more) electric double layer capacitors, from first to 2n-th electric double layer capacitors, having an equal electrostatic capacity, and that is configured such that adjacent electric double layer capacitors are connected either in series or in parallel by a switch and the 2n-th electric double layer capacitor and the first electric double layer capacitor are connected in parallel by a switch. Among the 2n capacitors Ci constituting the electric storage unit | 08-08-2013 |
20130271090 | DEVICES AND METHODS INCLUDING POLYACETYLENES - Embodiments described herein relate to compositions, devices, and methods for storage of energy (e.g., electrical energy). In some cases, devices including polyacetylene-containing polymers are provided. | 10-17-2013 |
20130271091 | Ultra-Capacitor Based Energy Storage in a Battery Form Factor - An ultra-capacitor based energy source may replace rechargeable and conventional batteries. It may have the form factor of a conventional battery and may emulate the discharge characteristics of the replaced battery. | 10-17-2013 |
20130271092 | Ultra-Capacitor Based Energy Storage for Appliances - An ultra-capacitor may replace a rechargeable battery in consumer applications where the appliance usage is not prolonged. That is, if the usage is intermittent, the ultra-capacitor can quickly recharge between consecutive uses. Especially for those applications where an appliance spends most of the time on a charging cradle ultra-capacitor may efficiently replace batteries in appliances. | 10-17-2013 |
20130278227 | Method for Balancing Ultracapacitor Cells | 10-24-2013 |
20130314055 | ELECTRICAL CHARGER FOR CHARGING RECHARGEABLE POWER TOOLS - A capacitor-based (supercapacitor, ultracapacitor or pseudocapacitor) electrical charger, rechargeable device and energy storage pack for use with a rechargeable power tool. The rechargeable device includes a storage capacitor. The electrical charger includes a supply capacitor electrically connected to an electrical contact, the supply capacitor being charged when the electrical charger is connected to a power source. While in use, any charge in the supply capacitor is rapidly distributed between the supply capacitor and the storage capacitor when the rechargeable device is mounted in the receiver of the electrical charger. The electrical charger includes a safety interlock switch which only supplies power to the electrical contact of the charger after electrical terminal of the rechargeable device have engaged the electrical contact. | 11-28-2013 |
20140035540 | ENERGY STORAGE DEVICE AND METHODS - In one aspect, energy storage devices and methods are disclosed that include (preferably in order): a cationic electrode cover layer, a cationic electrode, a cationic exchange polymer electrolyte layer, a separation dielectric layer, an anionic exchange polymer electrolyte layer, an anionic electrode, and an anionic electrode cover layer. In certain embodiments, the device is configured to be initially placed in an ionized state, and optionally, can be configured to be further charged to store energy in an electrostatic mode. In another aspect, ionic solid dielectric materials, energy storage devices including ionic solid dielectric materials, and methods of making and using such materials and devices are disclosed herein. | 02-06-2014 |
20140042988 | 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. | 02-13-2014 |
20140042989 | ELECTROCHEMICAL FLOW CAPACITORS - The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. Embodiments of this invention provide energy storage devices comprising: a positive electrode current collector, a negative electrode current collector, and an ion-permeable separator separating the positive and negative electrode current collectors; a positive electrode disposed between the positive electrode current collector and the ion-permeable separator; a negative electrode disposed between the negative electrode current collector and the ion-permeable separator; wherein at least one of the positive and negative electrodes comprises a non-stationary (including moveable or flowable, relative to the current collectors) solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent; and wherein the electrolytic solvent is substantially free of electrochemically oxidizable or reducible species. In some embodiments, the electrodes are in electrical communication with at least a portion of the respective electrode current collector. | 02-13-2014 |
20140055101 | CHARGING SCHEME - Mobile devices have limited power sources. In some cases, such as camera flash operations in cell phones or digital cameras, the power required to provide bright illumination is significant and exceeding the battery voltage level. In order to supply burst power or continuous high power to light sources, such as white LEDs (light emitting diodes), mobile devices typically employ charge storage functioning as energy reservoir that can supply the required power. One such charge storage is a supercapacitor that can supply the needed power repeatedly by discharging and recharging. Various embodiments of the present invention include devices and methods for providing the charge energy and controlling the charge and discharge operations. | 02-27-2014 |
20140077771 | VEHICLE CONTROL DEVICE - [Problem] To enable effectively utilizing electrical energy of a vehicle and effectively preventing early deterioration of the second electricity storage unit. [Solution] Provided is a vehicle control device for supplying electricity to an electrical load component of a vehicle. The vehicle control device comprises: a first electricity storage unit ( | 03-20-2014 |
20140239920 | Supercapacitor with Metal Cyanometallate Anode and Carbonaceous Cathode - A method is provided for charging a supercapacitor. The method initially provides a supercapacitor with a metal cyanometallate (MCM) particle anode, an electrolyte including a salt (DB) made up of cations (D+) anions (B−), and a cathode including carbonaceous materials (□). The method connects an external charging device between the anode and cathode, and the charging device supplies electrons to the anode and accepting electrons from the cathode. In response to the charging device, cations are inserted into the anode while anions are absorbed on the surface of the cathode. A supercapacitor device is also presented. | 08-28-2014 |
20140266075 | Methods Of Enhancing Electrochemical Double Layer Capacitor (EDLC) Performance And EDLC Devices Formed Therefrom - The invention broadly encompasses energy storage devices or systems and more specifically relates to methods of enhancing the performance of electrochemical double layer capacitors (EDLCs), or supercapacitors or ultracapacitors, and devices formed therefrom. In some embodiments, the invention relates generally to energy storage devices, such as EDLCs that use phosphonium-based electrolytes and methods for treating such devices to enhance their performance and operation. Embodiments of the invention further encompass phosphonium-based electrolytes comprised of phosphonium ionic liquids, salts, and compositions employed in such EDLCs. | 09-18-2014 |
20140292284 | ELECTRICAL CAPACITOR, ELECTRICAL CAPACITOR MODULE, FABRICATION METHOD OF THE ELECTRICAL CAPACITOR, AND FABRICATION METHOD OF THE ELECTRICAL CAPACITOR MODULE - An electrical capacitor includes: a band-shaped coating foil for positive electrode having a non-coated part of which an edge of one longitudinal side is not coated with an active material; a band-shaped coating foil for negative electrode having a non-coated part of which an edge of one longitudinal side is not coated with an active material; and a band-shaped separators through which an electrolysis solution and ions can pass. The coating foil for positive electrode and the coating foil for negative electrode are flatly wound via the separators so that the non-coated part in the side of the coating foil for positive electrode and the non-coated part in the side of the coating foil for negative electrode are exposed in opposite sides to each other, and the electrode group of the non-coated parts exposed to both sides are bonded. | 10-02-2014 |
20140300327 | THIN-FILM CAPACITOR DEVICE - The present invention provides a thin-film capacitor device having a charging circuit and a discharge circuit and capable of stably producing a constant voltage during discharging a thin-film capacitor by an inexpensive configuration. | 10-09-2014 |
20150130425 | POWER SUPPLY - Embodiments of the invention provide a power supply including a transformer comprising a single output terminal on a secondary side, a first output unit comprising a first capacitor and connected to the single output terminal to output a first output voltage, a second output unit comprising a second capacitor having a larger capacity than the first capacitor and connected to the single output terminal to output a second output voltage, and a controller configured to control the first output voltage to be output until power is applied and charging of the second capacitor is started. | 05-14-2015 |
20150340882 | ADJUSTMENT OF A CAPACITOR CHARGE VOLTAGE - A method, a system, and a control unit for adjusting a charge voltage of a capacitor which is used as a power backup in a system having a required energy level. The method includes adjusting the charge voltage of the capacitor based on a received capacitance value and a received value of the required energy level. The energy level stored in the capacitor is kept essentially constant. The method and system are advantageous in that they extends the lifetime of the capacitor | 11-26-2015 |
20160035500 | IONIC ELECTRON CONDUCTIVE POLYMER CAPACITOR - Technologies are generally described for an electron conductive polymer capacitor may incorporate a conductive polymer mixture embedded with carbon nanoparticles between electrodes to rapidly charge and store large amounts of charge compared to conventional electrolytic capacitors. Such a capacitor may be constructed with a laminate sheet including layers of inner and outer electrodes, an electrolyte mixture between the electrodes, a conductive polymer mixture, and a composite mixture of carbon nanoparticles embedded in the conductive polymer between the inner electrodes. The laminate sheet may be wound into a roll and the inner and outer electrodes are coupled electrically. When an electric field is applied, cations within the electrolyte mixture move towards the outer electrodes and anions towards the inner electrodes. Further, the inner conductive polymer layer is ionized causing electrons to move toward the inner electrodes to be deposited onto high surface area carbon nanoparticles where charge is stored. | 02-04-2016 |
20160072333 | ELECTRICAL ENERGY BUFFERING SYSTEM - Electrical energy buffering system, comprising an energy source for delivering electrical energy, an energy buffer for buffering electrical energy delivered from the energy source, the energy buffer comprising a plurality of supercapacitors, and control logic for controlling the operation of the energy buffer by selectively switching the supercapacitors, wherein the plurality of supercapacitors are switchably connected in parallel to each other in a circuit comprising the energy source and an electrical power output, and the control logic comprises a buffer monitor for monitoring a parameter representing the charge or discharge state, respectively, of each of the supercapacitors and is adapted to sequentially switch single supercapacitors or groups of supercapacitors on, responsive to the detection of a first predetermined charge or discharge state, respectively, and to switch them off, responsive to the detection of a second predetermined charge or discharge state, respectively. | 03-10-2016 |
20160111228 | LITHIUM ION CAPACITOR AND METHOD FOR CHARGING AND DISCHARGING SAME - A lithium ion capacitor includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and a lithium ion conductive electrolyte. The electrolyte contains a lithium salt and an ionic liquid. The lithium salt is a salt of a lithium ion serving as a first cation and a first anion, and the ionic liquid is a molten salt of a second cation and a second anion. The first anion and the second anion are the same. | 04-21-2016 |
20160118199 | CAPACITOR AND METHOD FOR CHARGING AND DISCHARGING THE SAME - Provided is a capacitor in which, even in the case of a high maximum charging voltage, decomposition of the electrolyte can be suppressed and charging and discharging can be performed with stability. The capacitor includes a positive electrode containing a positive-electrode active material, a negative electrode containing a negative-electrode active material, a separator disposed between the positive electrode and the negative electrode, and an electrolyte, wherein the positive-electrode active material contains a porous carbon material, in a volume-based pore size distribution of the porous carbon material, a cumulative volume of pores having a pore size of 1 nm or less accounts for 85% or more of a total pore volume, the porous carbon material has a crystallite size of 1 to 10 nm, the porous carbon material contains an oxygen-containing functional group, and a content of the oxygen-containing functional group is 3.3 mol % or less. | 04-28-2016 |
20160164309 | CHARGE/DISCHARGE DEVICE FOR A PACK OF SUPERCAPACITORS - A charge/discharge device composed of low cost passive component, which allows charge/discharge a pack of supercapacitors for automotive applications without any risk for operators and without danger of damaging neighboring devices, materials and supercapacitors is disclosed. It contains an inner electric charge line connected to a supply terminal of the device; an inner electric ground discharge line connected to a ground terminal of the device; an inner electric output line connected to an output terminal of the device; an on-off-on toggle switch, and a passive bipolar resistive circuit having an overall resistance comprised between 0.1 Ohms and 10 Ohms and inserted in the inner electric output line, having a power resistor installed on a heat sink. | 06-09-2016 |
20160172872 | BATTERY CHARGING APPARATUS USING ULTRA CAPACITOR | 06-16-2016 |
20180026453 | CHARGING DISCHARGING APPARATUS FOR SUPER CAPACITOR MODULES | 01-25-2018 |
20180026466 | CHARGING DISCHARGING APPARATUS FOR SUPER CAPACITOR MODULES | 01-25-2018 |