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255 results about "Electrical battery" patented technology

An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode.

Method for evaluating performance states of automotive power batteries

InactiveCN102914745AElectrical testingAutomotive batteryState of health
The invention belongs to the technical field of batteries, and particularly relates to a method for evaluating performance states of automotive power batteries. Through performing second-order equivalent circuit modeling on automotive power batteries (including lead-acid batteries, nickel-metal hydride batteries, lithium ion batteries, fuel batteries, super batteries and the like), the performance states of the batteries (a state of charge (SOC) and a state of health (SOH)) are transformed to parameters of an equivalent circuit model. An impulse charging-discharging experiment result of each automotive power battery is handled by using a second-order exponential damping fitting method in Origin software, so that the parameters of equivalent resistance and equivalent capacitance in the power batteries are obtained. A database of the power battery model parameters and the battery performance states is established as the basis of evaluating the performance states of the batteries in an operating process of an automobile, so that the power management can be optimized, problems can be found timely, and accidents are avoided.
Owner:BEIJING UNIV OF TECH

Non-aqueous solution aluminum ion secondary battery and preparation method thereof

Belonging to the technical field of batteries, the invention relates to a non-aqueous solution aluminum ion secondary battery and a preparation method thereof. The secondary battery can be widely applied in electronics, communication, electric vehicle and other fields. The aluminum ion battery provided by the invention contains a battery anode, a battery cathode, a diaphragm and an aluminum-containing non-aqueous solution electrolyte. Specifically, the cathode active material can be carbon, graphite, carbon nanotube, graphene, super carbon, WS2 and MoS2, V2O5, TiO2 and other materials having nano-layered, tubular, linear and other structures, and the anode is aluminum-containing metal or alloy. The non-aqueous solution aluminum ion secondary battery provided by the invention has the characteristics of high specific capacity, high coulomb efficiency, long service life and environmental protection, safety and reliability, stable cycle performance, and quick charging, etc.
Owner:BEIJING ALUMINUM ENERGY S&T

Power battery thermal management system with functions of efficient heat dissipation and efficient heating

InactiveCN106033827AEfficient dischargeAchieve temperature control effectSecondary cellsBatteriesAutomotive batteryElectrical battery
The invention discloses a power battery thermal management system with functions of efficient heat dissipation and efficient heating. The power battery thermal management system comprises a power battery case and a thermal management system, wherein a plurality of battery monomers are adjacently aligned to form a battery pack placed inside a battery case housing, a composite phase change material plate is sandwiched between the gap of the adjacent batteries and the surface of the outermost side battery in the battery pack width direction, the composite phase change material plates and thermal pipes are combined to form composite phase change material thermal pipe coupling components, the composite phase change material thermal pipe coupling components are additionally arranged on both sides of the battery pack, the thermal pipes extends from the through holes on the battery module housing, the extending ends are connected to heating devices and heat dissipation fans, and a programmable automatic temperature regulator treats the signal from a temperature sensor by programming so as to determine whether the fans and the heating devices are started. The power battery thermal management system of the present invention has advantages of simple and firm whole structure, high efficiency, stable operating, and the like. In addition, the battery pack can be subjected to direct, unified and uniform cooling and heating, such that the battery can work at the appropriate temperature range, and the electric vehicle battery thermal management system is improved.
Owner:广东万锦科技股份有限公司

Storage controller

InactiveUS20080148303A1Improve usabilityReduce maintenanceReducing temperature influence on carrierCarrier constructional parts dispositionElectrical batteryControl store
A storage controller of the present invention reduces maintenance work by the user by irreplaceably mounting the respective component parts inside an enclosure. A plurality of disk drives, which comprise a spare drive, and repair slots are arranged in close proximity in a matrix on the front side inside the enclosure. A backboard is disposed rearward of the respective disk drives. A plurality of control boards are arranged rearward of the backboard by being stacked one atop the other. A plurality of disk drives and a plurality of batteries respectively stacked one atop the other are arranged on the one side of the respective control boards. A plurality of power devices stacked one atop the other are arranged on the other side of the respective control boards. A plurality of cooling fans are arranged in the center part of the enclosure. The respective parts are affixed to the enclosure so as to be irreplaceable under normal circumstances.
Owner:HITACHI LTD

Method and apparatus for controlling the voltage of electrochemical cells in a rechargeable battery

InactiveUS20040251874A1Reduce voltageCharge equalisation circuitElectrical testingElectrical batteryCell voltage
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

Synergetic metal recycling method for nickel and cobalt containing waste batteries and copper containing electronic waste

InactiveCN107012332AHigh purityAvoid efficiencyPhotography auxillary processesWaste accumulators reclaimingElectrolysisElectrical battery
The invention provides a synergetic metal recycling method for nickel and cobalt containing waste batteries and copper containing electronic waste. The preliminarily smashed and metal element enriched waste batteries and the copper containing electronic waste are mixed, and a slag former and a reducing agent in a certain ratio are blended for an oxidative reducing reaction; relatively active metal iron, aluminum and the like in the reaction process form oxide to enter an upper layer slag phase; metal cobalt and nickel enter copper liquid on the bottom layer, and therefore the metal phase and a slag phase are separated, and metal containing copper, cobalt and nickel is obtained; and copper, cobalt, nickel and other high-purity metal are recycled through electrorefining. The method is short in flow, high-temperature thermometallurgy is adopted for synergetically recycling the valuable metal in the batteries and the electronic waste, and the problems that traditional waste battery wet recycling efficiency is low, the environment is polluted, a large amount of lixivium needs to be used, and a large amount of acid and alkaline is consumed are avoided; and an efficient novel recycling way is provided for waste ternary battery and electronic waste resource recycling, and good industrial application prospects are achieved.
Owner:SINO SCI PROCESS BEIJING SCI&TECH CO LTD

Solar cell module

The invention relates to a solar cell module. The solar cell module comprises at least two battery packs. The battery packs are connected in series. Each battery pack comprises at least two battery piece tandems which are connected in parallel. Each battery piece tandem comprises at least two battery pieces which are connected in series. In the same battery piece tandem, two adjacent battery units are overlapped and connected in series. By using the solar cell module, the adjacent battery pieces are overlapped and connected so that arrangement of the battery pieces in the battery piece tandem is tight and an area which does not generate power is small. Besides, the adjacent battery pieces are overlapped and connected so that a conductive contact area is large and resistor losses are reduced.
Owner:GCL SYST INTEGRATION TECH CO LTD +2

Cordless LED headlight and control thereof

ActiveUS9791138B1Minimizing shadow castProvide comfortMechanical apparatusLighting support devicesElectrical batteryEngineering
A wireless headlight assembly for attachment to an eyewear frame is disclosed. The wireless headlight assembly comprises a battery pod containing a battery connected to a lower housing element, which controls the application of power from the battery to an attached headlight assembly containing a headlight.
Owner:DESIGNS FOR VISION

Vehicle with switched supplemental energy storage system for engine cranking

ActiveUS6871625B1Muscle operated startersElectric motor startersBattery terminalElectrical battery
An engine cranking system includes an engine, a cranking motor coupled to the engine and a battery having first and second battery terminals. The first battery terminal is electrically coupled to the cranking motor and the second battery terminal is electrically coupled to a system ground. A capacitor includes first and second capacitor terminals. First and second electrical paths interconnect the first and second capacitor terminals, respectively, with the cranking motor and the system ground. First and second switches include first and second sets of switch terminals respectively. The first set of switch terminals is coupled between the first battery terminal and the cranking motor. A relay is included in one of the first and second electrical paths and has first and second control terminals. The second set of switch terminals is coupled between one of the first and second capacitor terminals and the second control terminal. The other of the first and second capacitor terminals is electrically coupled with the first control terminal. The relay is moveable between at least a closed-circuit position, in which the relay completes one of the first and second electrical paths, and an open-circuit condition, in which the relay interrupts one of the first and second electrical paths. In one embodiment, a running engine sensory component is coupled between one of the system ground and the first battery terminal and one of the first and second control terminals. The running engine sensory component maintains the relay in the closed-circuit position when the engine is running.
Owner:KOLD BAN INT

Smart car battery detector and vehicle network system

InactiveCN102288917AExtended service lifeAvoid excessive dischargeElectrical testingOn boardElectrical battery
The invention discloses a storage battery detector and a vehicle-mounted network system for an intelligent automobile. The storage battery detector of the intelligent automobile comprises an input terminal, a current sensor, a temperature sensor, a charging and discharging current detection circuit, a voltage detection circuit, a temperature detection circuit, a microprocessor and a bus communication module, wherein the input terminal is partitioned into two paths; one path is connected with the current sensor; the current sensor is connected with the charging and discharging current detection circuit; the other path is connected with the voltage detection circuit; the temperature sensor is connected with the temperature detection circuit; the charging and discharging current detection circuit, the voltage detection circuit and the temperature detection circuit are connected with the microprocessor; and the microprocessor is connected with the bus communication module. The storage battery detector for the intelligent automobile is used for monitoring the insufficient voltage status of a storage battery, the charging status health condition and the like, and can be connected to the vehicle-mounted network system for protecting the insufficient voltage status of the storage battery, so that the service life of the storage battery is prolonged.
Owner:BEIJING QIMING JINGHUA NEW TECH

Impact Features

ActiveUS20210001924A1Reduce the amount requiredHigh levelElectric propulsion mountingUnderstructuresElectrical batteryEnergy absorption
A vehicle platform with a variety of impact safety features including front and rear impact features as well as side impact features designed to protect the passenger compartment as well as the battery compartment and vehicle chassis components. Some features may include crumple zone components, deflectors and modular energy absorption units.
Owner:CANOO TECHNOLOGIES INC

Thermal runaway control system for lithium ion battery pack of new energy automobile, and battery pack

ActiveCN107069140ALarge specific heat capacityAbsorb moreCell temperature controlVehicular energy storageNew energyElectrical battery
The invention provides a thermal runaway control system for a lithium ion battery pack of a new energy automobile, and the battery pack. The control system comprises a water pump, a water tank and at least two groups of battery packs; each battery pack is matched with a three-way valve which is controlled and gated by a BMS; each battery pack liquid cooling plate is provided with a discharging valve which also can be controlled to be opened by the BMS; and a floating pipeline, which can be lowered along with a liquid surface and is connected with inlet water and outlet water of the water tank, is arranged in the water tank. By means of controlling the flow of the water pump and the flowing direction of an anti-freezing solution, the battery pack in thermal runaway can be full by the anti-freezing solution within 10s; when battery pack thermal runaway occurs in certain several packs, the liquid cooling plate valve in the battery pack in thermal runaway is controlled to be opened, and meanwhile, the three-way valves of other packs are controlled to be connected with the water tank; and therefore, spreading of heat to other battery packs can be blocked by means of controlling the thermal runway of a single battery pack or a few battery packs.
Owner:TIANJIN ENERGIES

LiAlO2 coated LiNi1-xCoxO2 lithium-ion battery positive electrode material and preparation method thereof

The present invention belongs to the field of lithium-ion batteries, and provide a modified lithium-ion battery positive electrode material LiNi1-xCoxO2@LiAlO2 with high thermal-stability LiAlO2 coated on the LiNi1-xCoxO2 surface, and a preparation method thereof. A purpose of the present invention is to overcome the disadvantages of overcharging intolerance and pool thermal-stability of the lithium-ion battery LiNi1-xCoxO2 (x is more than 0 and is less than or equal to 0.5) positive electrode material. According to the present invention, the positive electrode material of the present invention has characteristics of good thermal-stability, good discharge specific capacity and excellent cycle stability compared with the LiNi1-xCoxO2 positive electrode material, can meet the large rate charge and discharge requirements, and is especially suitable for the positive electrode material of the electric vehicle power battery; and the product prepared through the preparation method has characteristics of high purity, high chemical uniformity, good coating effect, high crystal quality, fine particle, uniform distribution, excellent electrochemical performance and low manufacturing cost.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Method for treating lithium metal with fluoroethylene carbonate and application of lithium metal in solid-state batteries

The invention relates to a method for treating the surface of lithium metal with fluoroethylene carbonate and an application of the lithium metal in solid-state batteries, and belongs to the technicalfield of preparation of negative electrode materials for lithium batteries. The method comprises that a lithium negative electrode is immersed in fluoroethylene carbonate, and then taken out and subjected to drying treatment to volatilize a residual liquid on the surface. The method is simple and easy to operate and easy to control, has obvious effect on solving the problems of poor compatibilityof lithium metal / solid electrolyte interfaces and lithium dendrite growth in conventional solid-state batteries, and is suitable for large-scale commercialized production.
Owner:SHANDONG UNIV

Heating circuit of battery

PendingCN107845840ADoes not affect the normal charging functionRealize low temperature heating functionBatteries circuit arrangementsSecondary cells charging/dischargingElectrical batteryInternal resistance
The invention discloses a heating circuit of a battery. The heating circuit comprises a temperature sensor, a battery management device and a charging circuit. The temperature sensor is mounted in a battery pack; the temperature sensor detects the real-time temperature of the battery pack and sends a temperature signal. The battery management device is connected with the temperature sensor; the battery management device receives the temperature signal sent by the temperature sensor. The charging circuit is connected with the battery management device, wherein the battery management device compares the temperature signal with a critical temperature; when the temperature signal is lower than or equal to the critical temperature, the battery management device controls the charging circuit towork in a high-frequency heating mode and the charging circuit heats the battery pack; when the temperature signal is higher than the critical temperature, the battery management device controls the charging circuit to work in a charging mode and the charging circuit charges the battery pack. The heating circuit of the battery is used for realizing heating the battery through the high-frequency charging and discharging to the battery by utilizing the properties that the battery is high in internal resistance at a low temperature and generates much heat, and the influence cannot be generated tothe safety of the battery by high-frequency alternating-current charging and heating.
Owner:SAIC VOLKSWAGEN AUTOMOTIVE CO LTD

Portable rechargeable direct-current electric welding machine

InactiveCN102205455AArc welding apparatusCurrent meterElectrical battery
The invention relates to a portable rechargeable direct-current electric welding machine. A battery pack is connected to the outside of a shell and comprises a positive main wire, a positive sub-wire, a negative main wire and a negative sub-wire, wherein the positive main wire of the battery pack is connected with a weld handle connection terminal; the weld handle connection terminal is connected with a switch; the switch is connected with a voltage stabilizer; the voltage stabilizer is connected with a control panel; the control panel is connected with the voltage regulator; the voltage regulator is connected with the current regulator; the current regulator is connected with a contactor; the contactor is connected with a welding voltage meter; the welding voltage meter is connected with a welding current meter; the welding current meter is connected with the weld handle; the negative main wire of the battery pack is connected with a ground wire terminal; and the negative sub-wire of the battery pack is connected with the voltage stabilizer, the control panel, the voltage regulator, the current regulator, the contactor, the welding voltage meter and the welding current meter respectively. The portable rechargeable direct-current electric welding machine has low cost, is convenient to assemble, disassemble and carry, is not limited by a power supply, can work anytime and anywhere.
Owner:王军翔

Intelligent energy management system of power battery pack

InactiveCN107425572ASafeguard and improve reliabilityImprove reliabilityCharging managementSecondary cells charging/dischargingPower batteryElectrical battery
The invention discloses an intelligent energy management system of a power battery pack. The intelligent energy management system comprises a main controller and a plurality of single battery intelligent management modules, wherein single batteries in the power battery pack are divided into a plurality of groups, each group is corresponding to each single battery intelligent management module and comprises at least one single battery, each single battery intelligent management module is used for monitoring a state of the single battery in the group, the abnormal single battery (group) is isolated when a monitoring result is abnormal, communication of the power battery pack is maintained, and the main controller is used for performing voltage regulation on total output voltage after control of each single battery intelligent management module and continuously outputting a preset stable current and total voltage. A failure battery is intelligently and automatically removed on line, the battery pack is enabled to still continuously and stably output a normal voltage and a normal current when the batteries in the whole group do not exceed a plurality of failure batteries in a certain proportion, so that the reliability and the availability of the power battery pack within planned backup time are guaranteed and improved, and the service lifetime of the battery pack is prolonged.
Owner:BEIJING SHENGFENG HELI SYST TECH CO LTD

Anion doped modified lithium ion battery (4:4:2) type ternary cathode material and preparing method thereof

InactiveCN103943841AUniform particle size distributionHigh crystallinityCell electrodesSecondary cellsLithium electrodeCathode material
The invention relates to an anion doped modified lithium ion battery (4:4:2) type ternary cathode material and a preparing method thereof, and belongs to the field of lithium ion batteries. The general chemical formula of the cathode material is LiNi<0.4>Co<0.2>Mn<0.4>O<2-z>Xz, wherein the X is F, Cl or Br; and the Z is more than 0 and not more than 0.15. The method includes steps of: weighing a soluble lithium salt, a nickel salt, a manganese slat, a cobalt salt and an X salt according to a molar ratio, dissolving the weighed compounds separately with deionized water, adding a citric acid solution and mixing and stirring uniformly, adjusting the pH value by utilization of concentrated ammonia liquor, heating and evaporating to obtain gel, heating and drying the gel, and performing two times of firing and grinding to obtain the anion doped modified lithium ion battery (4:4:2) type ternary cathode material. Particles of the lithium ion battery cathode material are fine and uniform and reach the nanometer level, so that the cathode material has characteristics of high discharge capacity, excellent cyclic stability and rate capacity, capability of maintaining the properties at high or low temperature conditions, convenience for large-scale industrial production, and high practical degree.
Owner:JIANGNAN UNIV

Charging method

ActiveCN106207296ACause damageImprove charging efficiencySecondary cells charging/dischargingElectrical batteryCritical voltage
The invention provides a charging method, which comprises the steps that a mobile terminal is provided, wherein the mobile terminal comprises a first circuit board, a first charging chip arranged on the first circuit board, a second circuit board, a second charging chip arranged on the second circuit board and a battery; the second charging chip is connected to the first charging chip in parallel; the battery is connected to the first charging chip and the second charging chip; the mobile terminal is connected to a charging power supply for charging the battery and simultaneously adjusting the charging state according to voltage of the battery; when the voltage of the battery is lower than second critical voltage, the battery enters a pre-charging state; when the voltage of the battery is greater than or equal to second critical voltage and smaller than third critical voltage, the battery enters a fast charging state; when the voltage of the battery is greater than or equal to the third critical voltage, the battery enters a constant-voltage charging state; and when charging current is smaller than or equal to cutoff current, charging is ended. By the charging method, the charging efficiency can be improved.
Owner:SHANGHAI TRANSSION CO LTD

Light-operated multiple energies natural lamp

InactiveCN101033830ATake advantage ofIncrease dynamic beautyWind energy with electric storageEnergy storageElectricityElectrical battery
A kind of illuminate device light controls multiple functions natural lamp with the natural wind energy and the solar energy generating electricity. It is at the outside of hollow hexangular base circular holder pipe makes the four-groove vertical revolving tray, inner gear mission, pillow, 100W DC generator, hexangular surface shape big lamp screen, solar energy battery plate, steady flow voltage regulator, charging bomb, light controller, and the energy-saving bulb connected in sequence assemble. The charging bomb inlet wire positive and negative electrode connect with the output positive and negative electrode line of the 100W DC generator and the solar energy battery plate and the charging bomb's output positive and negative electrode line connects with the energy-saving lamp supplying electricity among of them connecting the light controller in series. When there is the wind and the solar the 100W DC generator and the solar energy battery plate supply the electricity for the charging bomb at the same time; when there is no wind and solar the charging bomb supplies the electricity for the energy-saving lamp supplying electricity circuit. Among them it connects the light controller in series and the ray of light is strong so the light controller cuts the energy-saving lamp supplying electricity circuit automatically; at night there is no light so the light controller will turn on the energy-saving lamp supplying electricity circuit automatically.
Owner:高玉生
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