50results about How to "Fast charging" patented technology

The utility model provides a battery pack charging system, and belongs to the technical field of battery pack charging. The battery pack charging system comprises a reference voltage module, a comparison module, a charging mode switching module, a charging control module and a voltage detection module, the reference end of the comparison module is connected with the reference voltage module, the output end of the comparison module is connected with the input end of the charging mode switching module, the output end of the charging mode switching module is connected with the control end of the charging control module, and the output end of the charging control module is connected with the battery pack; the input end of the voltage detection module is connected with the feedback end of the charging control module. The output end of the voltage detection module is connected with the input end of the comparison module. And the charging mode switching module is configured to switch the charging mode of the battery pack according to the electric signal output by the comparison module. The charging efficiency of the battery pack can be improved.

The present disclosure relates to a battery structure and an electronic device. The battery structure comprises a battery circuit board and two battery modules. The two battery modules are symmetrically arranged on both sides of the battery circuit board and connected with the battery circuit board. The first end of each flexible circuit board is connected with the battery circuit board, and the second end of each flexible circuit board is arranged to be connected with the mainboard of the electronic device. The first heat dissipation member is located between the two battery modules and is connected with the battery circuit board and the middle frame assembly of the electronic device. In the present disclosure, the plurality of flexible circuit boards are connected with the battery circuit board, and the plurality of flexible circuit boards simultaneously charge the battery modules to realize a fast charging mode, reduce the impedance of each flexible circuit board, and effectively reduce the heat generated by each flexible circuit board. The first heat dissipation member is connected with the battery circuit board and the middle frame assembly of the electronic device, respectively, conducts the heat in the battery circuit board to the middle frame assembly, and further dissipates heat for the battery structure.

The utility model discloses an integrated charging socket for overlarge current, which relates to the field of alternating current and direct current charging sockets and comprises a panel, a rear cover mounted on the panel, a direct current charging module and an alternating current charging module integrated on the panel on the rear cover, and the alternating current charging module comprises a plurality of cable lead-in terminals and loop terminals. The cable lead-in terminal is connected with an external lead-in cable, the cable lead-in terminal comprises a copper pipe and an insulating cap, the insulating cap is injection-molded in the copper pipe to form a rubber coating integrated structure, the direct current charging module comprises a direct current charging shell, an aluminum bar and a direct current terminal, the direct current terminal is arranged in the direct current charging shell, the direct current charging shell is connected with a panel, and the panel is connected with the aluminum bar. The direct current charging shell is provided with a plurality of aluminum bars, the aluminum bars are longitudinally installed, the aluminum bars are connected with the direct current terminals one by one, the loop terminals and the direct current terminals are all of a rubber coating integrated structure, larger current can pass through the direct current charging shell, the charging speed is increased, the structural strength of the terminals is improved, and the risk that a split type insulation cap is broken and falls off in the assembling process is avoided.

This utility model discloses an aluminum busbar integrated charging socket, relating to the field of AC / DC charging sockets. It includes a panel with a back cover. A DC charging module and an AC charging module are integrated on the back cover. The DC charging module includes a DC charging housing, aluminum busbars, and DC terminals. The DC terminals are disposed within the DC charging housing, which is connected to the panel. Multiple aluminum busbars are disposed on the DC charging housing, installed horizontally, and each busbar is connected to a DC terminal. Charging new energy vehicles via the aluminum busbars allows for the transmission of a larger current, thus increasing the charging speed.

The utility model discloses an alternating current and direct current charging socket with overlarge current, which relates to the field of alternating current and direct current charging sockets and comprises a panel, a direct current module and an alternating current module, the direct current module and the alternating current module are mounted on the panel, an aluminum row assembly is arranged on the direct current module, and the direct current module comprises a direct current charging socket mounting plate and an aluminum row male plug. A mounting space is formed between the direct current charging socket mounting plate and the panel, the aluminum bar male plug is arranged in the mounting space, the aluminum bar assembly comprises an aluminum bar mounting shell and aluminum bars, the aluminum bar mounting shell is fixed on the direct current charging socket mounting plate, one end of the aluminum bar mounting shell is provided with a plurality of aluminum bars, and the aluminum bars are fixed on the aluminum bar mounting shell. The aluminum row is longitudinally installed and connected with the aluminum row male plug, the panel is provided with an aluminum row female socket, the aluminum row female socket is matched with the aluminum row male plug in an inserted mode, a new energy automobile is charged through power transmission of the aluminum row, larger current can pass through, and the charging speed is improved.

The utility model discloses a 3D honeycomb novel structure of metal ion battery solves battery energy density and quick charge and discharge technical problem, including the positive plate and negative plate of battery are equipped with the ear and base body on, be equipped with a plurality of chambers on the base body, the chamber is regular hexagonal prism cavity structure, and one end is regular hexagon opening, the other end is regular hexagon seal; the base body of positive plate and negative plate the inner chamber wall surface of chamber is adhered to the positive and negative surface active material and constitutes the positive and negative; all the chamber symmetrical two -dimensional topology arrangement constitutes 3D honeycomb structure, the chamber of setting on the base body is single -sided or double -sided chamber structure.

An energy storage system according to embodiments disclosed in the present document can include an interface configured to receive charging information of a battery and a power supply request from a plurality of charging devices, and a controller configured to control power supply to a target battery connected to a target charging device among the plurality of charging devices based on the power supply request received from the target charging device, and perform a process for reallocating power supplied to the target battery to a battery connected to at least one charging device other than the target charging device among the plurality of charging devices based on the charging information of the target battery connected to the target charging device.

The application discloses a kind of mobile power supply devices and control methods supporting double-path wireless fast charging, the device includes: input-output module, bidirectional DCDC module, control module, wireless charging module and battery module;The node 1 of bidirectional DCDC module is connected to input-output module via first switch, node 3 is connected to battery module via third switch;The node 2 of wireless charging module is connected to node 1 via second switch, is connected to battery module via fourth switch and third switch;Control module carries out on-off control to first switch, second switch, third switch and fourth switch.Thereby, corresponding charging and discharging path is planned for different charging and discharging modes, other paths are turned off when supplying wireless charging by external power supply, wireless charging module is stably supplied with accurate voltage, to ensure that wireless fast charging can be realized in the case of plugging and not plugging, eliminate the phenomenon that charging is slower after plugging, significantly improve user experience.

The invention relates to an electronic equipment protection shell, electronic equipment, an electronic accessory and a charging method, relates to the technical field of electronic equipment, and aims to improve the charging stability of the electronic accessory. The electronic equipment protection shell comprises a protection shell body, a first connection contact, a second connection contact and an energy processor. The energy processor is arranged in the protection shell body and is coupled with the first connection contact and the second connection contact. The energy processor is configured to generate a first current in response to an external magnetic field. The first connecting contacts and the second connecting contacts are arranged at intervals; the first connecting contact and the second connecting contact are exposed out of the outer surface of the protective shell body so as to transmit the first current to the outside of the protective shell body.

The invention relates to the technical field of battery management, and discloses a dynamic fast charging intelligent control method and system for a lithium battery, and the method comprises the steps: monitoring the relaxation behavior of the battery voltage and the surface pressure change of the lithium battery, and obtaining relaxation data and pressure differential data; analyzing the voltage change curve of the relaxation data and the change trend of the pressure differential data to obtain a state evaluation report; analyzing the battery internal resistance characteristic, the polarization voltage parameter and the pressure change rate of the state evaluation report, and mapping to a preset charging strategy library to obtain a composite charging strategy; performing instruction coding on stage parameters of the composite charging strategy, and performing protocol packaging to obtain a current adjustment instruction sequence; performing signal regulation on the current adjustment instruction sequence, and obtaining a control signal through multi-mode driving signal synthesis; executing the control signal, and completing a rapid charging process based on optimized charging parameters obtained in real time; according to the invention, the efficiency of dynamic fast charge intelligent control of the lithium battery can be improved.

The application discloses a charging method, device, equipment, storage medium and program product of multiple battery clusters. The method comprises the following steps: acquiring a charging instruction for multiple battery clusters; when the charging instruction indicates that the charging mode is a multiple-cluster parallel charging mode, performing voltage detection and charging capacity detection on the multiple battery clusters, and determining the voltage and chargeable capacity of the battery clusters. According to the voltage and chargeable capacity of the multiple battery clusters, at least two target battery clusters are selected from the multiple battery clusters, and the at least two target battery clusters are charged in parallel. The technical scheme of the application can accurately select the target battery cluster combination with the highest charging value for parallel charging, effectively avoids the problem of idle capacity due to single-cluster full charging and whole-battery shutdown, significantly improves the available capacity utilization rate of the multiple battery cluster energy storage system, provides reliable guarantee for the rapid power supply of the electric ship, and effectively improves the ship endurance and user experience.

This invention discloses a method for preparing N-doped β"-AlON solid electrolyte powder, which includes the following steps: (1) Slurry preparation: weigh anhydrous ethanol and dispersant, add the dispersant to anhydrous ethanol and stir evenly to obtain a mixed solution, then weigh aluminum source powder, lithium source powder, sodium source powder and nitrogen source powder to obtain a mixed powder, add the mixed powder to the mixed solution and stir thoroughly until the mixture is evenly mixed to obtain a mixed slurry; (2) Grinding to prepare precursor slurry: grind the mixed slurry thoroughly to obtain a precursor slurry; (3) Spray drying: spray dry the wet-ground precursor slurry to obtain spray-dried powder; (4) Calcination: calcine the spray-dried powder in a nitrogen atmosphere, and keep warm after calcination to obtain N-doped β"-AlON powder.

The application discloses a battery pack water cooling device and a design method thereof, a battery pack and a vehicle thereof, and is used for providing a cooling structure for a battery cell of the battery pack. The battery pack water cooling device comprises a plurality of water cooling devices arranged at intervals. Spaces for accommodating the battery cells are arranged between adjacent water cooling devices. The water cooling device comprises a first flat plate and a second flat plate. A flow guide strip for providing a flow channel for a cooling liquid is arranged between the first flat plate and the second flat plate. The water cooling device of the application is no longer arranged at the bottom, but is arranged on a larger area of the square battery cell. The cooling area can be increased by several times. The heat conduction path is changed from the height direction of the battery cell to the thickness direction of the battery cell. The heat conduction path is greatly shortened. The cooling capacity and the battery charging speed are greatly improved. Meanwhile, the water cooling device arranged in the transverse direction can play a role of a cross beam. The structural strength of the battery pack is improved. The number of the cross beams of the battery pack is reduced. More battery cells can be accommodated.

This application relates to the field of battery technology, specifically to battery cells, battery devices, energy storage devices, and power consumption devices. In the negative electrode sheet of a battery cell, the negative electrode active layer includes a first active layer and a second active layer. The second active layer is disposed between the first active layer and the negative electrode current collector. The first active layer contains a first negative electrode active material, and the second active layer contains a second negative electrode active material. The sphericity of the first and second negative electrode active materials is independently 0.7~0.9, and their roundness is independently 0.42~0.65, respectively. Furthermore, the sphericity and / or roundness of the first negative electrode active material is greater than that of the second negative electrode active material. This application can improve the irreversible thickness growth of the negative electrode sheet during cycling and enhance kinetics, thereby helping to reduce the volume expansion of the cell throughout its life cycle while maintaining fast-charging performance.

This invention relates to an electroactive porphyrin-based conjugated microporous polymer material, its preparation method, and its applications. The porphyrin-based conjugated microporous polymer is obtained from raw materials containing porphyrin-based monomers and aromatic amine monomers through a coupling reaction. The electroactive porphyrin-based conjugated microporous polymer material of this invention exhibits excellent electrochemical performance as an electrode material. Lithium-ion capacitors constructed using this material possess characteristics such as high specific capacitance, high energy density, fast charging rate, and long cycle life. This invention has good application potential in lightweight, high-specific-energy, fast-charging energy storage devices.

The application provides a battery heating method and device, electronic equipment and storage medium, relates to the technical field of battery thermal management, and obtains a first heating time period of a battery from a first register; the first heating time period is set according to photovoltaic output power, and supports fast charging of the battery. When the battery supports two-stage heating, a second heating time period of the battery is obtained from a second register; the second heating time period is set according to electricity price, and supports low electricity price charging. When the current time is in the first heating time period or in the second heating time period, a heating mode is determined according to the discharge capacity of the battery cell, and the battery cell is heated and the battery is charged according to the power and temperature range corresponding to the heating mode. The battery charging and discharging performance is improved, and intelligent adjustment of battery heating is realized.

The invention discloses a charging control method, electronic equipment, an electric energy device and a storage medium, and the charging control method comprises the steps: obtaining a target charging path of a battery from a current state to a target state according to the current state information of the battery, the target charging path is the estimated charging path with the shortest charging time in a plurality of estimated charging paths for charging the battery from the current state to the target state; and controlling battery charging according to the target charging path. The method can shorten the battery charging time as much as possible and improve the charging speed, thereby improving the battery charging capability.

The utility model provides a battery cell and a battery, the battery cell comprises a positive plate, a negative plate and a diaphragm, and the positive plate comprises a positive overlapping part and a positive lug part; the negative plate comprises a negative overlapping part and a negative lug part; the diaphragm, the positive electrode overlapping part and the negative electrode overlapping part are mutually stacked to form a main body, the diaphragm separates the positive electrode overlapping part and the negative electrode overlapping part, the positive electrode lug part and the negative electrode lug part both protrude out of the edge of the diaphragm, and the positive electrode lug part and the negative electrode lug part are located at the two ends of the main body respectively in the width direction of the main body. As the positive lug part and the negative lug part of the battery cell are respectively positioned at the two ends of the main body in the width direction, the transmission distance of charges is shorter when the charges are transferred between the lug parts and the central area of the main body, and the movement time of the charges is shorter, so that the charging rate of the battery cell is higher.

The application discloses an intelligent ultraviolet sterilization filtering straw cup, which comprises a cup body, a cup cover connected with the cup body, a straw connected with the cup cover and a filtering device connected with the straw, and an ultraviolet light emitting diode is arranged in the photoelectric component of the cup cover and used for sterilizing water in the cup body. The capacitive sensing technology is used in the application. When the cup cover is screwed into the cup body, the sensing sheet detects the metal cup mouth, the chip turns on the ultraviolet light emitting diode control switch to light the sterilization light source for sterilization and disinfection. When the cup cover is screwed out of the cup body, the sensing sheet cannot detect the conductor, the ultraviolet light emitting diode control switch cannot be normally turned on, and the sterilization light source cannot be lightened, so that the harm caused by ultraviolet leakage is prevented. The application adopts multiple layers of filtering materials, which can filter impurities and heavy metals and improve the taste of water. Meanwhile, the application also adopts the magnetic charging technology which is convenient to use, fast in charging speed, waterproof, small in size and the like.

A circuit supporting multiple groups of fast charging protocols and having a data communication function is characterized by comprising an interface circuit unit, a voltage induction and identification circuit unit, a charging / communication switching circuit unit, a charging state management circuit unit and a data communication control circuit unit, the input end of the interface circuit unit is electrically connected with a plug of a USB-TYPE-C cable, the output end of the interface circuit unit is connected with the input end of the voltage induction and identification circuit unit, the interface circuit unit is connected with the input end of the charging / communication switching circuit unit, the charging / communication switching circuit unit is connected with the data communication control circuit unit, and the data communication control circuit unit is connected with the USB-TYPE-C cable. The output end of the data communication control circuit unit is electrically connected with a serial port of the single-chip microcomputer, the input end of the charging state management circuit unit is connected with the output end of the voltage induction and identification circuit unit, and the output end of the charging state management circuit unit is connected with the battery. And adaptive selection of a quick charging function and a data communication function is realized.

The utility model discloses a charger capable of temperature control and voltage regulation, comprising a rectification filter circuit used for shaping an input current to output a direct current; the voltage transformation circuit comprises a primary coil and a secondary coil; the charging circuit is connected between the secondary coil of the voltage transformation circuit and a charging interface; the electric quantity detection circuit is used for detecting the charging electric quantity of the storage battery; the temperature detection circuit comprises a first temperature detection circuit and a second temperature detection circuit; and the switching power supply comprises a switching tube for controlling the on-off of the primary coil of the voltage transformation circuit and a pulse width modulation circuit for outputting a pulse signal to control the on-off of the switching tube. According to the utility model, the two temperature sensors are adopted to respectively collect the temperature of the power supply tube and the ambient temperature, and the duty ratio of the pulse output by the pulse width modulation circuit is controlled when the temperature changes so as to control the charging current of the storage battery, so that the charging speed is improved, the charging speed is greatly improved in lower and higher environments, and the user experience is improved.

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle self-adaptive endurance rapid charging system based on a spherical photovoltaic power supply, and the system comprises an unmanned aerial vehicle of which the fuselage is provided with a power receiving interface; the spherical photovoltaic power module is arranged on a fuselage of the unmanned aerial vehicle; the ground rapid charging base station comprises an energy storage unit; the multi-degree-of-freedom self-adaptive docking mechanism is electrically connected with the energy storage unit; the visual positioning unit is used for acquiring the position information of the unmanned aerial vehicle and the attitude information of the power receiving interface; the docking control unit is electrically connected with the multi-degree-of-freedom self-adaptive docking mechanism and the visual positioning unit respectively; wherein the docking control unit is used for controlling the multi-degree-of-freedom adaptive docking mechanism to be docked with the power receiving interface based on the information acquired by the visual positioning unit. Through combination of spherical photovoltaic and ground fast charging, the endurance of the unmanned aerial vehicle is effectively improved, high-precision landing is not needed, and the intelligent degree is high.

The present application belongs to the technical field of lithium / sodium ion battery negative electrode material, and particularly relates to a method for preparing coal tar-based hard carbon by solvent-thermal assisted low-temperature heat treatment. The method comprises the following steps: S1, crushing and sieving a hard carbon precursor to obtain a powdery raw material with uniform particle size; S2, acid washing the powdery raw material to remove ash, and cleaning until neutral, and then drying to obtain a purified raw material; S3, mixing the purified raw material with a polar organic solvent to perform a solvent-thermal reaction, and after the reaction, filtering, washing and drying to obtain a modified raw material; and S4, performing low-temperature heat treatment on the modified raw material to obtain a hard carbon material. The method is cheap in raw material, reliable in process, and can be produced on a large scale. The obtained hard carbon material can be used as a lithium ion battery and sodium ion battery negative electrode material, and provides a new way for low-cost preparation of hard carbon negative electrode material for energy storage.

The utility model provides a novel power bank, which comprises four battery units with the same appearance, and each battery unit comprises one or more rechargeable lithium battery cells which are connected in parallel. The battery units are sequentially connected in series through connecting cables; each battery unit is of a rectangular cylinder structure, and strong magnets are assembled at the same positions of the upper and lower ends of the side walls of the adjacent battery units; micro switches K1 are assembled in the middle parts of the left side walls of the first, second and third battery units; charging and discharging interfaces are assembled on the first battery unit and the fourth battery unit; when the battery units are sequentially attracted together through the strong magnets, the battery units are connected in parallel, and the charging and discharging interface is in an output state. When the battery units are in a mutually separated state, the battery units are connected in series, and the charging and discharging interface is in an input state. When the novel power bank provided by the utility model is used for supplying power, the internal battery units are in a parallel state; the internal battery units are in a series connection state during charging, and can be quickly charged through a high-voltage charger.

The application discloses a charging circuit of a battery and an electric vehicle. The charging circuit comprises a battery, a direct-current charging interface, a switch tube combination circuit and a heating control contactor. The battery comprises a first part of battery cells and a second part of battery cells connected in series through a series connection node. The switch tube combination circuit is connected between the direct-current charging interface and the battery. The heating control contactor is connected between the switch tube combination circuit and the series connection node. When the heating control contactor is turned on and the switch tube combination circuit is configured as a boost circuit, the switch tube combination circuit is used for boosting direct-current power input from the direct-current charging interface to charge the battery, and alternately controls the first part of battery cells to discharge to charge the second part of battery cells or the second part of battery cells to discharge to charge the first part of battery cells. The self-heating of the battery is realized by utilizing the internal resistance heating of the battery.

The invention provides a capacitor charger based on an LCC resonance circuit, the LCC resonance circuit adopts a constant frequency-constant power working mode, and the constant frequency-constant power working mode comprises the following steps: when the LCC resonance circuit works at the maximum output power, the output current of the LCC resonance circuit is controlled by adopting a frequency conversion mode so as to maintain the maximum output power state; when the output power of the LCC resonant circuit falls from the maximum output power, the open frequency of the LCC resonant circuit is maintained at the maximum switching frequency, so that the time for maintaining the maximum peak output power of the charging system can be prolonged, and after the charging system falls from the maximum power state, the fastest charging speed is maintained, and the charging efficiency is improved. The power capacity of components can be saved, the performance of the circuit is improved, and the charging effect is improved.

The invention provides a bootstrap control circuit and a voltage conversion device. The bootstrap control circuit comprises a current mirror, a diode string, a switch, a control voltage generator and a first transistor. The current mirror mirrors a bias current to generate a mirror current based on an input voltage. The diode string is coupled between the current mirror and a reference voltage terminal. The switch has a first end coupled to the diode string, a control end of the switch receives a first control voltage, and a second end of the switch provides a second control voltage. The first transistor generates an output voltage based on the input voltage according to a second control voltage.

The application discloses a driving method of a large-size multi-color reflective LCD, comprising the following steps: S1, a common electrode applies a first voltage to a pixel, and a data line applies a second voltage to the pixel; S2, the common electrode applies a third voltage to the pixel, and the data line applies the second voltage to the pixel; S3, XON is turned on, a gate drive sends a signal to turn on all scanning lines, all pixels are turned on, a source drive sends a signal to input a voltage to all data lines, the data line simultaneously applies the second voltage to all pixels, and the common electrode simultaneously applies a fourth voltage to all pixels, wherein the first voltage, the second voltage, the third voltage and the fourth voltage are different from each other. The driving method provided by the application can reduce the charging time of the reflective LCD pixel, thereby reducing the load, improving the frame rate, and being especially suitable for a large-size reflective LCD. Moreover, due to the dynamic adjustment of the pixel charging voltage, more display colors can be excited, and the method can also be suitable for a multi-color reflective LCD.

The utility model relates to inverter technical field discloses a new energy box type transformer uninterrupted power supply system, including box body, the box body upper surface is provided with display screen, and the side is provided with electric energy transmission interface, the electric energy transmission interface includes commercial power input interface, solar panel voltage input interface, battery direct current input output interface and alternating current output interface, the commercial power input interface accesses commercial power, the solar panel voltage input interface connects photovoltaic panel array, the battery direct current input interface connects battery bank, the utility model discloses can realize commercial power complementation, has high performance, high reliability, with the effect that the load capacity is strong.

The application relates to a preparation method of an artificially modified CEI material, and the preparation steps comprise the following steps: mixing polymer monomers, a crosslinking agent, an organic plasticizer, a lithium salt, a photoinitiator and a diluent to obtain a precursor solution; performing spin coating on the surface of a high-nickel ternary positive electrode, standing to make the precursor solution fully wet, using a purple light lamp to initiate polymerization, and performing vacuum drying to obtain a high-nickel ternary positive electrode with an artificially modified CEI layer. The artificially modified CEI material is prepared by in-situ polymerization reaction of polyethylene glycol diacrylate and a fluorine-substituted product of ethylene carbonate, is used for a lithium metal battery positive electrode, can effectively stabilize the electrode / electrolyte interface, inhibit electrolyte decomposition and transition metal dissolution, reduce the occurrence of side reactions, and improves the cycle stability of the lithium metal battery.