206results about How to "Balanced charging" patented technology

Systems and methods for blocking nerve impulses use an implanted electrode located on or around a nerve. A specific waveform is used that causes the nerve membrane to become incapable of transmitting an action potential. The membrane is only affected underneath the electrode, and the effect is immediately and completely reversible. The waveform has a low amplitude and can be charge balanced, with a high likelihood of being safe to the nerve for chronic conditions. It is possible to selectively block larger (motor) nerve fibers within a mixed nerve, while allowing sensory information to travel through unaffected nerve fibers.

An apparatus and method for charging a multiple-cell battery pack provides a balanced charge to each cell in a series by providing a cell charge monitor/regulator for (1) monitoring the charge (potential, for example) of each cell and, when a state is attained, defining a maximum cell charge, and (2) shunting further charge current to a next cell in the series via a shunt resistor that bridges the cell, and thereby bypasses further charging thereof, while directing shunted charge current to one or more next cells in the series as needed. Each of the cells is thereby charged to its fullest potential while the overall charging procedure is not unduly lengthened. The battery pack can be implanted as part of a life-saving system.

The invention discloses a vehicle-mounted lithium battery charging system, which comprises a battery management system and a charger, wherein the battery management system comprises a battery management module, a battery thermal management module, a high-voltage safety management module and a CAN bus communication interface, and is used for monitoring and controlling the charging and discharging processes of each battery module in a battery pack; and the charger comprises a charging port, an auxiliary power port and a power output port, is used for monitoring and controlling the charging current and the charging voltage of the battery pack. Therefore, each battery module in the battery pack and a battery monomer are charged according to an ideal charging curve. The vehicle-mounted lithium battery charging system reduces the cost, realizes the balanced and safe charge of the battery pack, and can prolong the service life of the battery.

The invention relates to an intelligent power lithium ion battery management system. The system comprises a microcontroller module, an acquisition module, a storage module, a safety protection module, a communication module, a charging and discharging control module and an equalization management module, wherein the acquisition module, the storage module, the safety protection module, the communication module, the charging and discharging control module and the equalization management module are connected to the microcontroller module. The charging method comprises the following steps that according to a single battery voltage collected by the acquisition module, a total voltage of a battery pack, a temperature, a current and other information, whether the battery allows to be charged is determined; if the battery allows to be charged, the battery management system automatically adjusts a charging mode to the battery pack; through CAN communication, an output current of an equalization power supply module is automatically adjusted; equalization charging is performed on a single battery with a low voltage till that differential voltages of all the single batteries are less than a threshold. By using the system and the method of the invention, according to data information of the battery pack, a charging mode can be automatically selected, a charging current is automatically matched, a charging protection function is possessed, charging efficiency of the battery pack can be increased and a circulation service life of the battery pack is prolonged.

The invention discloses a lithium ion power battery pack for an electric automobile and a manufacturing method of the lithium ion power battery pack. The lithium ion power battery pack for the electric automobile comprises a battery pack shell and a battery pack cover matched with the battery pack shell, wherein battery modules are arranged inside the battery pack shell; an insulating layer I is arranged between the battery modules and the battery pack cover; an insulating layer II is arranged between a battery pack shell surface opposite to the battery pack cover and the battery modules; quick connectors connected with the battery modules are arranged on the battery pack shell; and the adjacent battery modules inside the battery pack shell are clamped with each other. The manufacturing method of the lithium ion power battery pack for the electric automobile comprises the following steps of: (1) providing a single battery, and preprocessing; (2) making a plurality of single batteries connected in parallel with one another to form the battery modules; (3) making a plurality of battery modules connected in series with one another to form the battery pack; and (4) performing terminal treatment on the battery pack. By the manufacturing method, charging uniformity, high safety and long service life of the lithium ion power battery pack can be ensured.

The invention discloses an equalizing charge method and an equalizing charger. The equalizing charge method comprises the following steps: (1) connecting N (N is integer and is more than or equal to 2) single batteries in a battery pack in parallel; (2) independently and quickly charging the N single batteries at the same time; and (3) after the single batteries meet the charge requirement, finishing charging the battery pack. The equalizing charge method of the invention changes the series discharge mode of the single batteries of the battery pack into a parallel mode to independently charge the batteries of the battery pack, thus independently controlling the charge process of the single batteries to ensure equalizing charge for the single batteries. The charger of the invention uses a single chip control center as the core, and simply and precisely realizes independent charge and independent control of the single batteries.

The invention provides an aromatic amine compound containing 9,9'-spirobifluorene and dibenzothiophene and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. The compound has a simple preparation method, easily available raw materials, good hole transport capability and stability, can realize charge balance in a light-emitting layer, has a suitable highest occupied molecular orbital energy level, a high T1 value and a high refractive index, can remarkably improve the light emitting efficiency, the heat resistance and the servicelife of the device when applied to an OLED device, and can also effectively reduce the driving voltage of the device, thereby being an OLED material with excellent performance.

The invention provides a dual-pole polar plate lead-acid accumulator with long service life and high capacity used for an electric vehicle. A polar plate group consists of a dual-pole polar plate, an upper end polar plate, a lower end polar plate and a clapboard; the polar plate group is arranged in a battery frame which presses the polar plate group and gives a suitable pressure to active matter. The invention is technically characterized in that one surface of an anode of a baseplate of the dual-pole polar plate is provided with a conductive needle and one surface of a cathode is provided with a conductive column; furthermore, electrode modification is carried out for the baseplate and the conductive needle. After the modification, the specific capacity of the battery is 45-50Wh/kg, which is improved by 20%-30% compared with the existing normal battery. The design service life is 3-8 years, which is improved 2-3 times compared with the normal battery. The battery is mainly used for electric vehicles, electric bicycles, etc., as power supplies, and can be also used for all sites where the existing normal lead-acid batteries are applied.

The invention discloses a battery pack voltage equalization control circuit and battery management equipment. The battery pack voltage equalization control circuit comprises a storage battery pack, a master controller, a battery voltage detection circuit and a battery pack voltage equalization circuit, wherein the battery voltage detection circuit is connected with positive and negative electrodes of each storage battery and a main controller respectively, detects a voltage of each storage battery and outputs detected voltage signal to the main controller; the main controller compares the voltage signals, and outputs an equalization control signal to the battery pack voltage equalization circuit when a difference value between two voltage signal values is greater than a preset reference value; and the battery pack voltage equalization circuit is connected with the storage battery pack and the main controller respectively, and carries out charging equalization or discharging equalization on the storage batteries which require charging equalization or discharging equalization in the storage battery pack according to the equalization control signal. According to the battery pack voltage equalization control circuit, the consistency of the storage battery pack can be kept; the charging and discharging utilization efficiency of the storage battery pack is improved; and meanwhile, the service lifetime of the storage battery pack can be prolonged.

The invention discloses a device for equalizing charge of a battery and a method thereof. The device is used for the charge of the battery comprising at least one battery pack. The battery pack is connected with a plurality of battery cells in series. The device comprises a main power supply used for the integral charge of the battery, an auxiliary power supply used for the compensating charge ofthe battery pack, a charge gating circuit used for connecting the auxiliary power supply to each battery cell in the battery pack in a gating manner, and a collection control circuit. The collection control circuit is used for collecting the voltage value of each battery cell in the battery pack and determining a to-be-equalized battery cell group according to a collection result. The to-be-equalized battery cell group comprises a battery cell in the battery pack or comprises two or more adjacent battery cells in the battery pack, and is used for controlling the charge gating circuit to connect the auxiliary power supply with the to-be-equalized battery cell group and controlling to adjust the voltage value output by the auxiliary power supply to be the charging voltage needed by the to-be-equalized battery cell group so as to charge the to-be-equalized battery cell group. The invention has low charge energy consumption and quick equalizing speed.

The invention discloses an equalizing charge management system of a lithium ion power battery pack. The system comprises an external voltage alternating current converter, an MCU central processing unit, a voltage, current and temperature monitoring module used for monitoring battery information, a plurality of equalizing charge modules, a battery heat radiating module and a plurality of battery modules, wherein the voltage, current and temperature monitoring module feeds the monitored information back to the MCU; the MCU analyzes the information and sends a command to the equalizing charge modules and the battery heat radiating module to control charge equalization of every battery in the battery modules; each battery module is connected with one equalizing charge module; each equalizing charge module consists of a control switch, a spoiler and a transformer; the control switch is connected with the spoiler and the transformer respectively; the control switch is connected with the external voltage alternating current converter; the spoiler is connected in parallel with the battery modules; and the transformer is connected in parallel with the battery modules. The equalizing charge management system realizes high-current equalizing charge in a mode of early-constant current and later-disturbed flow.

The charging device includes charging socket, charger, charging plug, accumulators connected to each other in series. The charging device also includes convertor composed of DC relays. Number of DC relay is less than one of the numbers of accumulators. The DC relays possess dual sets of normal open and normal close contacts. Connection wire is built in the charging plug. Through connection wire built in the charging plug, winding in DC relay obtains power. When being electrified, relays attract accumulators so as to convert series connection to parallel connection. Features are: compact circuit design, very few electronic parts and components, safety and reliable so as to prolong service life of accumulators in use for electric motor cars more than one time.

The invention discloses an efficient photovoltaic charge control method for an independent photovoltaic generating system, comprising the three stages of MPPT (maximum power point tracking) charge, constant-voltage charge and floating charge: stage one: using an MPPT method to quickly charge a storage battery, carrying out once power judgment every other continuous five disturbances, and realizing the exact power tracking under the condition of quick changes of environment conditions; stage two: using lifting charge and equalizing charge to supplement the electric energy of the storage battery in the normal and overcharging states respectively; and stage three: maintaining the full electric energy of the storage battery. In the method, the charge states are managed effectively, the chargeefficiency is improved, and the service life of the storage battery is prolonged.

The invention provides a serially-connected lithium battery set power supply equalization management system comprising a battery set power supply module and a charging power supply module which is connected with the battery set power supply module through a DC power line. The battery set power supply module comprises a serially-connected lithium battery set, a voltage detection control circuit and a breaking serial-connection switching circuit. If the voltage detection control circuit detects when the serially-connected lithium battery set discharges, the difference value of a maximum voltage and a minimum voltage of each single string of battery surpasses a set threshold value, the voltage detection control circuit controls the breaking serial-connection switching circuit to break the single string of battery, of which the voltage is the lowest. If the voltage detection control circuit detects some single string of battery reaches saturation in advance during charging, the voltage detection control circuit controls the breaking serial-connection switching circuit to break the single string of battery reaching saturation in advance, and sends serial-connection number change information to the charging power supply module to adjust a charging voltage. The beneficial effects of the serially-connected lithium battery set power supply equalization management system are that the circuit is simple in structure, charging-discharging circle inside the battery set is prevented, and energy loss is small.

The invention discloses a charge-discharge equalization control circuit of a battery pack. The charge-discharge equalization control circuit comprises a charge-discharge circuit, a voltage detection circuit, a voltage comparator, a controller, a current-sharing circuit and a discharge switch. An input end of the charge-discharge circuit is connected with a power line, and an output end of the charge-discharge circuit is connected with at least two battery single bodies respectively. An input end of the voltage detection circuit is connected with at least two battery single bodies respectively. An input end of the voltage comparator is connected with an output end of the voltage detection circuit. An input end of the controller is connected with the voltage comparator, and an output end of the controller is connected with the charge-discharge circuit. The current-sharing circuit is connected with the charge-discharge circuit and the controller. The discharge switch is located in the charge-discharge circuit. The charge-discharge equalization control circuit can ensure charging equalization between the battery single bodies through a replacing mode and a current-sharing mode in the charging process, can control the high-voltage battery single bodies to charge the low-voltage battery single bodies, and further ensures the mutual equalization between the battery single bodies in the discharging process.

The invention discloses a charging balance method for a DC charging pile. The method comprises steps of controlling an A/DC change-over device to connecting AC output by an AC output end to a DC main charging loop or a vehicle charging machine by a central processor according to a charging type, acquiring electric quantity information of all batteries by a charging controller when the DC is connected to the AC main charging loop, determining a battery having the lowest electric quantity as a to-be-charged battery, determining an electric quantity grade of the to-be-charged battery, determining whether to charge the to-be-charged battery according to the electric quantity grade, if so, charging via corresponding charging currents, detecting whether to rise the electric quantity grade of the to-be-charged battery, if so, determining whether the to-be-charged battery is the battery having the lowest electric quantity, if so, circularly executing the above steps until the battery set is fully charged. The beneficial effects are that (1) the battery can be charged by the charging pile in a balance way; and (2) heat generation amount during the charging of the charging pile and the battery can be reduced.

The invention discloses a battery equilibrium charging and inspecting and repairing device comprising a power circuit, an electronic switching circuit, a detecting control circuit and a charging pending/detecting pending battery unit, wherein both ends of each battery in the battery unit are respectively connected to at least one electronic switch in the electronic switching circuit; each electronic switch is an NMOS logic circuit working in the switch status, and the logic control end of the NMOS logic circuit is connected to the grid electrode of a corresponding N-type field effect tube; and the logic control end of each electronic switch connected to the anode of each battery is also provided with a subcircuit connected to a negative power supply by a resistor. The battery equilibrium charging and inspecting and repairing device can realize charging autoadaptation and carries out any combination of equilibrium charging on each battery in the battery unit; the full N-type field effect tube is adopted, enabling the circuit to be simpler and more reliable; and linear isolation measurement and multiple safety isolation are adopted, thereby solving the problems of danger, low precision and virtual ground of measurement and control. The invention can also be used as a battery load on-line tester.

A hair-dyeing agent, which contains at least one compound represented by formula (1) or (2) as a dye:

wherein X₁ and X₂ each are an oxygen atom, nitrogen atom, sulfur atom, or dialkylmethylene group; R₁, R₂, R₃, R₄, R₅, R₆, R₇, and R₈ each independently are a hydrogen atom or substituent; M₁ and M₂ each are a counter ion to balance the charge of the molecule; and m₁ and m₂ each are a number of 0 or more necessary to neutralize the charge of the molecule.

Disclosed in the invention is an equalizing charging system for a liquid state metal battery. With the system, passive equalization of the liquid state metal battery under high temperatures is realized. According to the system, a non-linear resistor that is made of a SiC or GaN material and is resistant to the high temperature of 600 DEG C is used for being connected with the battery in parallel; the resistance value of the non-linear resistor is the largest when the voltages at the two ends of the resistor are less than a certain value; and almost no current flows through the branch where the resistor is located. When the battery is almost charged fully, the voltage of the battery rises rapidly, the resistance value of the non-linear resistor is reduced quickly, and most of charging currents flow through the resistor branch, thereby preventing an overcharging phenomenon of the battery. An external battery monitoring unit uses a series battery group as a unit to monitor the voltage and charging capacity of the battery group in real time; when any one of the two parameters exceeds a rated value, the charging loop is cut off instantly. According to the invention, the structure is simple and reliability is high; and equalizing charging of the liquid state metal battery can be realized well.

The invention relates to a multifunctional control system and a control method of a battery used in a substation, which is characterized in that the multifunctional control system comprises a currentacquisition module, an input end of the current acquisition module is connected with a current sensor, and an output end is connected with an input end of an A/D converter. The input end of the temperature acquisition module is connected with the temperature sensor, and the output end is connected with the input end of the A/D converter. The output of A/D converter is connected with CPU through I/O interface. The CPU is also connected with human-computer interaction module, discharge load and voltage balancing module through I/O interface, and the discharge load and voltage balancing module are electrically connected with each single battery respectively. The control method comprises the following steps of: balancing control of a battery pack; SOC estimation of battery pack; measurement ofinternal resistance of battery pack.

The invention relates to a method for realizing dynamic voltage balancing of a battery pack in a charging state by PWM shunting, which is characterized in that two ends of each battery in a serial battery pack are provided with a testing unit respectively; the inside of the testing unit is provided with a shunting branch circuit which consists of a switch tube and a shunting resistor in series; a switch control signal is provided for the switch tube by a PWM control circuit; a controlling mode of the PWM control circuit comprises that: in the charging state of the battery pack, a monitoring unit calls up each testing unit through a 485 bus to obtain terminal voltage of each single battery; and through comparison, the single battery which is higher than 1 percent of the average voltage of all the batteries is subjected to independent PWM shunting control. The method is used for realizing the real-time active regulation of the charging voltage of each single battery to allow the charging voltage of each single battery to be consistent.

The invention discloses a charging circuit for equalizing activation of a multi-section series lithium ion battery pack and a battery pack. The charging circuit is used for charging the battery pack formed by arranging m lithium ion batteries in series and comprises a power frequency transformer, m rectifier bridges, m voltage-measuring control circuits and (m+1) guide lines, wherein the power frequency transformer is used for transforming mains supply to output voltage of m secondary windings corresponding to charging batteries; the m rectifier bridges are used for performing full-wave rectification on alternating current to form a sine wave direct current; the m voltage-measuring control circuits are used for detecting the voltage of each section battery and turning off the charging circuit; and the (m+1) guide lines are used for connecting the voltage-measuring control circuits and the batteries to form a charging loop. By the charging circuit, equalizing charge of all batteries isrealized, the battery pack is maintained and preserved, uncharged application capacity of the battery pack is ensured, the service life of the battery pack is prolonged, and most of over-discharged batteries can be continuously available after being activated and charged. Moreover, the circuit is simple and reliable, low in cost, convenient to maintain, and easy for industrialized production.

An oil-electric combined charge long-distance all-electric ship with storage battery is disclosed, a pilothouse of a ship body is inside provided with a console, an electric propulsion device is arranged at stern, a battery pack is mounted at the bottom of the ship body, and the ship body is also provided with a thermoelectric generating set that is connected with a distribution board having a rectifier. By mounting the battery pack and the thermoelectric generating set on the ship, the invention can utilize two energies including shore power and high energy fuel, and can sufficiently utilize clean energy at locations where the shore power is present, in order to reduce smoke dust, noise, odor and oil/water pollution and to improve working environment on the ship. The invention regards the high energy fuel and the shore power as a composite energy to achieve energy balance, forms a ship electric station with the storage battery centered in a charging way in order to realize full-power propelling, and integrates the advantages of storage battery electric ship and traditional internal combustion engine ship with a view to double index of environment protection and energy conservation as well as endurance. The invention has the characteristics of accuracy control, high endurance, environment protection, energy conservation, and simple and convenient management and operation, and is the electric ship similar to oil-electric hybrid electric vehicle.