| Entries |
| Document | Title | Date |
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| 20090015200 | METHOD AND ARRANGEMENT FOR MODIFYING THE STATE OF CHARGE (SOC) AND STATE OF HEALTH (SOH) OF A BATTERY - A high state of charge results in reduced ageing and less wear of and to a rechargeable battery. Furthermore, acid stratification occurs in rechargeable batteries, primarily as a result of the influence of the force of gravity on the electrolyte, leading to a significant reduction in the performance of the rechargeable battery. The subject matter of the invention describes a method and an arrangement for varying the state of charge and state of health of rechargeable batteries, in which a separate electric current (i) is applied individually to at least one cell (Z) in the multicell rechargeable battery (1), this current (i) being superimposed on a working current (i | 01-15-2009 |
| 20090015201 | Hybrid Vehicle and Control Method Therefor - An HV-ECU executes refresh-discharging of a battery before the battery is charged from a commercial power source using an AC/DC converter. After the battery is refresh-discharged, the HV-ECU outputs a control signal to the AC/DC converter such that the battery is charged from the commercial power source by the drive of the AC/DC converter. | 01-15-2009 |
| 20090140695 | Method of regenerating lead battery cells and regenerative agent for performing of this method - The electrochemical regeneration of lead battery cells during which, after the treatment of the battery by some of the regeneration additives on the basis of an aqueous solution of hydrogen peroxide and after the basic charging, they are alternately or intermittently charged and discharged. Above the limit located above the level of the full charge it is charged with a current of 1.1%-4% and discharged with a current of 0%-5% related to the nominal value of the capacity of the cell or storage battery, or else the charging is carried out in two phases or by a constant current. Under the limit located below the level of the permitted discharging it is discharged with a current of 1% to 4% and subsequently charged with a current of 3%-10% related to the value of the capacity of the battery to a decrease in the voltage to 1.6 V of the cell or any of the battery's cells. Then the battery supplies 10%-15% of its nominal capacity and this entire procedure is repeated 2-5 times. The regenerative agent contains, for each liter of aqueous solution 40% of hydrogen peroxide, 1 ml to 70 ml of sulfuric acid with a density of 1 to 1.32 g.cm | 06-04-2009 |
| 20100052616 | SECONDARY CELL REPLACING METHOD - In a pre-replacement process, a replacement battery module is provided with a memory effect before being dispatched, by performing at least one of the process of performing a cyclic charge/discharge operation on the replacement battery module while limiting the width of SOC change to an intermediate range, and the process of setting an initial SOC and then letting the replacement battery module stand for a predetermined time in an environment of temperature above normal temperature. This pre-replacement process substantially eliminates the difference between the voltage characteristic of the replacement battery module yet to be used and the voltage characteristic of a battery module having a history of use, thereby achieving a uniform voltage characteristic of a battery pack as a whole. | 03-04-2010 |
| 20100079110 | NON-AQUEOUS ELECTROLYTIC SOLUTION AND LITHIUM SECONDARY BATTERY - A non-aqueous electrolytic solution favorably employable for a lithium secondary battery employs a non-aqueous electrolytic solution which comprises a non-aqueous solvent and an electrolyte which further contains 0.001 to 0.8 weight % of a biphenyl derivative having the formula: | 04-01-2010 |
| 20120043940 | ELECTRODE PROTECTION IN BOTH AQUEOUS AND NON-AQUEOUS ELECTROCHEMICAL CELLS, INCLUDING RECHARGEABLE LITHIUM BATTERIES - Electrode protection in electrochemical cells, and more specifically, electrode protection in both aqueous and non-aqueous electrochemical cells, including rechargeable lithium batteries, are presented. In one embodiment, an electrochemical cell includes an anode comprising lithium and a multi-layered structure positioned between the anode and an electrolyte of the cell. A multi-layered structure can include at least a first single-ion conductive material layer (e.g., a lithiated metal layer), and at least a first polymeric layer positioned between the anode and the single-ion conductive material. The invention also can provide an electrode stabilization layer positioned within the electrode, i.e., between one portion and another portion of an electrode, to control depletion and re-plating of electrode material upon charge and discharge of a battery. Advantageously, electrochemical cells comprising combinations of structures described herein are not only compatible with environments that are typically unsuitable for lithium, but the cells may be also capable of displaying long cycle life, high lithium cycling efficiency, and high energy density. | 02-23-2012 |
| 20120056590 | Very Long Cycling of Lithium Ion Batteries with Lithium Rich Cathode Materials - Lithium ion batteries can be activated and then cycled to exploit a moderate fraction of the discharge cycling capacity such that the discharge capacity and average discharge voltage stay within initial values for thousands of cycles. The superior cycling performance has been achieved at relatively high discharge rates and for practical battery formats. Lithium ion battery performance can also be achieved with superior cycling performance with partially activated batteries such that good discharge capacities can be exploited for many thousands of cycles before the discharge capacity and average discharge voltage drops more than 20% from initial values. The positive electrode active material can be a lithium rich metal oxide. The activation of the battery can comprise phase changes of the active materials. As described herein, the phase changes can be manipulated to exploit a reasonable fraction of the available high capacity of the material while providing outstanding cycling stability. | 03-08-2012 |
| 20120200263 | BATTERY TEMPERATURE CONTROL SYSTEM - A battery temperature control system, in temperature rise control, sets a maximum chargeable current and a maximum dischargeable current based on detection values of current, voltage, and temperature of a high-voltage battery, and controls charging/discharging power so that the current of the high-voltage battery does not exceed the maximum chargeable current or the maximum dischargeable current. For this reason, it is possible to prevent the high-voltage battery from abnormal heating and promptly raise its temperature according to change in the internal state of the high-voltage battery. In this control, a plurality of electrical equipment is selectively used. The amplitude of charging/discharging is controlled to reduce vibration noise and driving force fluctuation. | 08-09-2012 |
| 20120268074 | POWER SYSTEM FOR HIGH TEMPERATURE APPLICATIONS WITH RECHARGEABLE ENERGY STORAGE - A power system adapted for supplying power in a high temperature environment is disclosed. The power system includes a rechargeable energy storage that is operable in a temperature range of between about seventy degrees Celsius and about two hundred and fifty degrees Celsius coupled to a circuit for at least one of supplying power from the energy storage and charging the energy storage; wherein the energy storage is configured to store between about one one hundredth (0.01) of a joule and about one hundred megajoules of energy, and to provide peak power of between about one one hundredth (0.01) of a watt and about one hundred megawatts, for at least two charge-discharge cycles. Methods of use and fabrication are provided. Embodiments of additional features of the power supply are included. | 10-25-2012 |
| 20130119937 | SYSTEM AND METHOD FOR COOLING AND CYCLING A BATTERY PACK - A system and a method for cooling and cycling a battery pack is provided. The system includes an air supplying device that outputs pressurized air. The system further includes a vortex tube that receives the pressurized air and outputs cooled air at a first temperature level utilizing the pressurized air. The system further includes at least one heat exchanger disposed in the battery pack that receives the cooled air from the vortex tube and cools the battery pack. The system further includes a battery cycling device configured to charge and discharge the battery pack when the battery pack is being cooled. | 05-16-2013 |
| 20130141050 | AQUEOUS ELECTROLYTE LITHIUM SULFUR BATTERIES - Provided are lithium sulfur battery cells that use water as an electrolyte solvent. In various embodiments the water solvent enhances one or more of the following cell attributes: energy density, power density and cycle life. Significant cost reduction can also be realized by using an aqueous electrolyte in combination with a sulfur cathode. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage. | 06-06-2013 |
| 20130162216 | Stacks of internally connected surface-mediated cells and methods of operating same - An energy storage stack of at least two surface-mediated cells (SMCs) internally connected in parallel or in series. The stack includes: (A) At least two SMC cells, each consisting of (i) a cathode comprising a porous cathode current collector and a cathode active material; (ii) a porous anode current collector; and (iii) a porous separator disposed between the cathode and the anode; (B) A lithium-containing electrolyte in physical contact with all the electrodes, wherein the cathode active material has a specific surface area no less than 100 m | 06-27-2013 |
| 20130193928 | CHARGE MANAGEMENT FOR ENERGY STORAGE TEMPERATURE CONTROL - Charging and discharging an energy storage device (ESD) generates heat and may prevent its temperature from dropping to unsafe levels. By monitoring and managing the charge and discharge of an ESD with respect to the periods of time in which demand charges are determined, the heating will have minimal adverse effect on demand charges. ESDs may also exchange energy in a controlled manner for heating purposes and reduce reliance on utility grid-based energy sources. ESD heating may also be made more efficient by offsetting the heating with load shedding during charging periods. Precharging the ESD while heating or preheating the ESD by charging and discharging can prevent new maximum demand levels from appearing and thereby limit increases in demand charges. | 08-01-2013 |
| 20130229153 | SYSTEMS AND METHODS FOR EQUIVALENT RAPID CHARGING WITH DIFFERENT ENERGY STORAGE CONFIGURATIONS - The invention provides for an energy storage system that has a first plurality of battery cells that each are capable of a first C-rate. The plurality of battery cells can be charged at an equivalent rate on a kWh/minute basis as a second plurality of battery cells that each are capable of second C-rate, with the second C-rate being higher than the first C-rate. The first plurality of battery cells may have an energy storage capacity which is approximately twice the energy storage capacity for the second plurality of cells. | 09-05-2013 |
| 20130278219 | Battery Testing System and Control Method for Battery Testing System - Embodiments of the invention provide a battery testing system. The battery testing system includes a charger, a discharging unit, and a switch board. The switch board receives a first control signal from the control unit and controls the charger according to the first control signal, receives a first monitoring signal from the charger indicating a charging status of the battery and controls the control unit according to the first monitoring signal, receives a second control signal from the control unit and controls the discharging unit according to the control signal, and receives a second monitoring signal from the discharging unit indicating a discharging status of the battery and controls the control unit according to the second monitoring signal. The control unit is electrically isolated from the discharging unit and the charger by the switch board. Different charging/discharging equipments can be employed to test the battery. | 10-24-2013 |
| 20130307485 | CYCLING METHOD FOR SULFUR COMPOSITE LITHIUM ION BATTERY - A method for cycling a sulfur composite lithium ion battery includes a step of charging and discharging the sulfur composite lithium ion battery at a first voltage range between a predetermined highest voltage and a predetermined lowest voltage. The lithium ion battery includes an electrode active material. The electrode active material includes a sulfur composite. The step of charging and discharging satisfies at least one conditions of (1) and (2): (1) the predetermined lowest voltage of the first voltage range is larger than a discharge cutoff voltage of the sulfur composite; and (2) the predetermined highest voltage of the first voltage range is smaller than a charge cutoff voltage of the sulfur composite. A method for using a sulfur composite as an electrode active material of a lithium ion battery is also disclosed. | 11-21-2013 |
| 20140042976 | CHARGING METHOD FOR ADJUSTING CHARGING CURRENT - Disclosed herein is a charging method for adjusting the charging current. The charging method includes the following steps: reading a present number of times of charging/discharging cycle and a rated number of times of charging/discharging cycle by a charging system; computing a charging/discharging ratio between the present number of times of charging/discharging cycle and the rated number of times of charging/discharging cycle by the charging system; generating a current drop ratio from a function of the charging/discharging ratio and a percent charging current by the charging system, wherein the current drop ratio is in a range of 0 to 1; and the charging system adjusting the charging current of a rechargeable battery based on the current drop ratio. | 02-13-2014 |
| 20140132221 | COMPOSITION, ENERGY STORAGE DEVICE, AND RELATED PROCESS - A positive electrode composition is provided. The positive electrode composition includes at least one electroactive metal selected from the group consisting of titanium, vanadium, niobium, molybdenum, nickel, iron, cobalt, chromium, manganese, silver, antimony, cadmium, tin, lead, copper, zinc, and combination thereof, an alkali metal halide, and aluminum, present in an amount of at least 0.5 weight percent, based on the weight of the positive electrode composition. Optionally, an amount of sodium iodide of up to about 1.0 weight percent, based on the weight of the sodium halide in the positive electrode composition, is included. The composition may be included in a positive electrode with a molten electrolyte salt comprising the reaction product of an alkali metal halide and an aluminum halide. An energy storage device including the composition is provided, as well as a method of operating the device. | 05-15-2014 |
| 20140159668 | Composite Anode Structure for Aqueous Electrolyte Energy Storage and Device Containing Same - An anode electrode for an energy storage device includes both an ion intercalation material and a pseudocapacitive material. The ion intercalation material may be a NASICON material, such as NaTi | 06-12-2014 |
| 20140167699 | BATTERY CYCLING AND MANAGEMENT - An aspect provides a method, including: setting a battery pack, in an information handling device having two or more battery packs, as a priority battery pack; discharging the priority battery pack and maintaining one or more other battery packs in an idle state; ascertaining if the priority battery pack satisfies one or more conditions; and in response to the priority battery pack satisfying the one or more conditions, setting one of the one or more other battery packs to be the priority battery pack and maintaining the remaining battery packs in an idle state; wherein the priority battery pack is prioritized in terms of charging. Other aspects are described and claimed. | 06-19-2014 |
| 20140210417 | SYSTEM AND METHOD OF BATTERY TEMPERATURE CONTROL - A temperature control system for a battery in an energy storage system is disclosed. In one aspect, the temperature control system includes a circuit configured to determine that the temperature of the battery has been maintained below a normal operation temperature for a predetermined duration. The circuit is further configured to alternatingly repeat charging and discharging operations using a winding in a primary side of an inverter to generate reactive current to flow in opposite directions through the battery until the temperature of the battery is restored to the normal operation temperature. | 07-31-2014 |
| 20140217985 | PROCESS FOR FORMING A BATTERY CONTAINING AN IRON ELECTRODE - Provided is a process for activating a battery comprising an iron electrode. The process comprises providing a battery comprising a cathode and an iron anode. The battery further comprises an electrolyte comprising NaOH, LiOH and a sulfide. The battery is then cycled to equalize the state-of-charge of the cathode and iron anode. | 08-07-2014 |
| 20140266058 | APPARATUS AND METHOD FOR USE IN STORING ENERGY - Some embodiments provide energy storage systems that comprise: a first electrode; a second electrode; an electrolyte; the first electrode, the second electrode and the electrolyte are positioned such that the electrolyte is in contact with at least the first electrode; and a polarity reversal system electrically coupled with the first electrode and the second electrode, wherein the polarity reversal system is configured to allow the energy storage system to operate while a first polarity to charge and discharge electrical energy while operating in the first polarity, and the polarity reversal system is configured to reverse the voltage polarity across the first and second electrodes to a second polarity to allow the energy storage system to continue to operate while the second polarity is established across the first electrode and the second electrode to continue to charge and discharge electrical energy while operating in the second polarity. | 09-18-2014 |
| 20140285155 | POWER CONVERSION DEVICE HAVING BATTERY HEATING FUNCTION - A power conversion device includes a sensor and a controller, The sensor detects a predetermined condition. The controller controls heating of a battery when the predetermined condition is detected by the sensor. The controller controls heating of the battery based on at least one of a battery charging operation or a battery discharging operation. | 09-25-2014 |
| 20150311503 | Secondary Zinc-Manganese Dioxide Batteries for High Power Applications - In an embodiment, a secondary Zn—MnO | 10-29-2015 |
| 20150326049 | POWER SYSTEM FOR HIGH TEMPERATURE APPLICATIONS WITH RECHARGEABLE ENERGY STORAGE - A power system adapted for supplying power in a high temperature environment is disclosed. The power system includes a rechargeable energy storage that is operable in a temperature range of between about seventy degrees Celsius and about two hundred and fifty degrees Celsius coupled to a circuit for at least one of supplying power from the energy storage and charging the energy storage; wherein the energy storage is configured to store between about one one hundredth (0.01) of a joule and about one hundred megajoules of energy, and to provide peak power of between about one one hundredth (0.01) of a watt and about one hundred megawatts, for at least two charge-discharge cycles. Methods of use and fabrication are provided. Embodiments of additional features of the power supply are included. | 11-12-2015 |
| 20150380720 | METHOD FOR PRODUCING ANODIC COMPOSITE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING ELECTRODE USING SAME, AND METHOD FOR CHARGING ANDDISCHARGING ELECTRODE - This disclosure synthesizes an anodic composite material Li(Li | 12-31-2015 |
| 20160172886 | MECHANISM FOR EXTENDING CYCLE LIFE OF A BATTERY | 06-16-2016 |
