13results about How to "Short charging time" patented technology

The invention provides a battery health degree determination method and device and a storage medium, and relates to the technical field of battery detection, and the battery health degree determination method comprises the steps: obtaining actual power consumption when power supply equipment wirelessly charges a target battery in an electric bicycle in a target time period, and obtaining first power consumption, acquiring a first charge state of the target battery at a starting moment and a second charge state of the target battery at an ending moment; determining the power consumption of the power supply equipment when the target battery is completely healthy and the target battery is charged from the first charge state to a second charge state to obtain second power consumption; and determining the health degree of the target battery according to the first power consumption and the second power consumption. According to the invention, the measurement efficiency of the battery health degree is improved, and the labor cost and the hardware cost for measuring the battery health degree are reduced.

The invention relates to the technical field of thermal power generating unit frequency modulation, and particularly provides a generator set joint frequency modulation method and related equipment, and the method comprises the steps: obtaining the control information of a target generator set and the actual power generation data of the target generator set, and the control information at least comprises preset electric quantity data; calculating electric quantity data of a hybrid energy storage system corresponding to the target generator set based on the preset electric quantity data and the actual power generation data; acquiring state data of a power grid corresponding to the target generator set, and judging a working mode of the hybrid energy storage system based on the state data and a preset rule; and generating a working strategy of the hybrid energy storage system according to the working mode and the electric quantity data, and completing frequency modulation based on the working strategy.

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 present application relates to the field of temperature measurement, in particular to a kind of metal organic framework crystal material and its preparation method and application.The present application provides a kind of metal organic framework crystal material, wherein the crystal material is connected body 2,6-di (2,4-dicarboxyphenyl) -4- (phenyl) pyridine and Zn (II) connected with the crystal material with periodic three-dimensional network structure.The metal organic framework crystal material provided by the present application still keeps the afterglow characteristic under the condition of smaller particle size, and the charging time is shorter;At the same time, the decay time of the metal organic framework crystal material of the present application is seconds, and the light source only needs ordinary ultraviolet semiconductor light source, and the camera can record the time / color of afterglow decay, as the basis for temperature judgment, which greatly reduces the temperature measurement cost and simplifies the measurement process;In addition, the metal organic framework crystal material of the present application can be synthesized below 120 DEG C, which reduces the production cost and danger.

The present invention discloses a battery cell charging method, device and electronic device, the method comprising: charging a plurality of battery cells based on a preset cut-off condition, and predicting the actual battery cell capacity of each battery cell according to the charging process; calculating the charging time required for each battery cell to reach a preset SOC based on the actual battery cell capacity of each battery cell and the capacity already charged in each battery cell, the preset SOC being the SOC relative to the actual battery cell capacity of each battery cell; charging each battery cell according to the charging time corresponding to each battery cell. The technical solution provided by the present invention can further improve the consistency of battery cell voltage while ensuring the shipping efficiency.

The invention discloses a multi-role integrated common mode choke for a Marx generator. The multi-role integrated common mode choke comprises a foil type capacitive winding and a trigger switch. The foil type capacitive winding is formed by alternately stacking metal foils and insulating films and rolling the metal foils and the insulating films in parallel in the circumferential direction, the insulating films are arranged between the adjacent metal foils, and the metal foils and the insulating films jointly form an energy storage capacitor; each metal foil is a winding, two ends of each foil type capacitive winding are respectively provided with a lead, the head end and the tail end of each foil type capacitive winding are dotted terminals, and when the foil type capacitive windings work in a differential mode state, the foil type capacitive windings are connected with a charging power supply through low impedance. Current flows in from the dotted terminal of one foil type capacitive winding and flows out from the dotted terminal of the other foil type capacitive winding. As a basic unit, the multi-role integrated common mode choke can replace a traditional charging and discharging resistor, an energy storage capacitor and a trigger switch, is cascaded to form the Marx generator, is short in charging time, high in charging and discharging efficiency, capable of working at high repetition frequency, modularized and compact in structure.

The invention relates to the technical field of phased array radar power supply and distribution, in particular to an intelligent multi-stage slow start device applied to a radar power supply and distribution system, and the intelligent multi-stage slow start device is connected between an input terminal and an output terminal of the radar power supply and distribution system. The intelligent multi-stage slow start device comprises a main loop module, a state acquisition module and a decision control module, the main loop module is composed of a main relay and n slow start branches which are connected in parallel. Each slow start branch is composed of a branch relay and a current-limiting resistor which are connected in series. The state acquisition module is composed of a voltage acquisition unit used for acquiring output voltage in real time and a temperature acquisition unit used for acquiring the temperature of each current-limiting resistor in real time. The decision control module is composed of a central processing unit, a voltage reference adjusting unit, a comparison unit and a driving unit, and is used for controlling the on-off of the branch relays of the n slow start branches. According to the device, low-cost, low-heat-consumption and high-reliability slow start is realized, and higher-level system protection is provided.

The application relates to a medical gas pipeline welding inner sealing device, belonging to the pipeline welding field, which comprises a first pipe body, a second pipe body and a third pipe body arranged at the two ends of the first pipe body respectively, the first pipe body, the second pipe body and the third pipe body are coaxial, pressure expansion pieces are arranged between the first pipe body and the second pipe body and between the first pipe body and the third pipe body, a driving assembly for driving the second pipe body and the third pipe body to move towards each other so that the two pressure expansion pieces are extruded and expanded is arranged on the first pipe body, when the application is used, the first pipe body, the second pipe body and the third pipe body are slid into a pipeline to be welded, the two pressure expansion pieces are located at the two sides of a weld seam, under the action of the driving assembly, the two pressure expansion pieces are expanded under pressure and abut against the inner wall of the pipeline, so that the pipeline is sealed, the sliding in and sliding out are relatively smooth, the operation is convenient, the spacing between the two pressure expansion pieces is small, the amount of inert gas is small, the filling time is short, the construction cost is low, and the efficiency is high.

The invention relates to an electrical conductor arrangement (10) for conducting an electrical current from a charging socket (160) of a motor vehicle (100) to an energy storage device (150) of the motor vehicle (100), comprising: a direct current conductor (20) having two single direct current conductors (21, 22) for conducting a direct current (DC) from a direct current interface (120) of the charging socket (160) to the energy storage device (150); the invention relates to a charging socket (160) comprising an energy storage device (150) and an alternating current conductor (30) having a plurality of alternating current individual conductors (31) for conducting an alternating current (AC) from an alternating current connection (130) of the charging socket (160) to the energy storage device (150), each direct current individual conductor (21, 22) having an aluminum profile (25) as an electrical conductor for conducting a direct current (DC).

The invention discloses a preparation method and application of a selenium nickel molybdenum sulfide catalyst, and belongs to the technical field of energy materials, the preparation method comprises the following steps: adding selenium powder into a hydrazine hydrate solution to form a solution A; dissolving sodium molybdate dihydrate and thiourea in the reduced graphene oxide suspension to form a mixed solution B; mixing the solution A and the solution B together, stirring to obtain a solution C, transferring the solution C into a high-pressure kettle, and carrying out hydrothermal reaction to obtain a solution D; adding nickel acetate into the solution D, mixing and stirring, carrying out hydrothermal reaction again, washing with deionized water, and freeze-drying to obtain a black product A; and carrying out annealing treatment on the product A by using a tubular furnace under the protection of argon to obtain the selenium nickel molybdenum sulfide catalyst. According to the preparation method and application of the selenium nickel sulfide molybdenum catalyst, the conversion rate is remarkably increased, the interlayer spacing is enlarged, rapid movement of lithium ions is promoted, and the selenium nickel sulfide molybdenum catalyst has huge application potential in the field of rapid charging.

The invention discloses a power battery system and a charging method thereof, belongs to the technical field of electric vehicle charging, solves the problems of long charging time and difficult charging of an electric vehicle, and performs optimization design on the structure of a battery module, and then matches a reasonable battery management system. The power battery system comprises a QCBM, an SCBM1, an SCBM2, a vehicle-mounted charger and a battery management system, and can realize two charging modes: (1) the front end of the QCBM is connected with a quick charging port for quick charging, the rear end of the QCBM is connected with the SCBM1 and the SCBM2, and the QCBM performs slow charging on the SCBM1 and the SCBM2; and (2) the QCBM, the SCBM1 and the SCBM2 are all connected with a vehicle-mounted charger, a slow charging device charges each battery module through a slow charging port, and the slow charging device performs slow charging only through the vehicle-mounted charger. The purposes of short charging time, convenient charging, safe charging and prolonged service life of the battery can be achieved.

A pixel display structure and panel, including a first thin film transistor, a second thin film transistor, wherein the source of the first thin film transistor is connected to a column drive signal, the gate is connected to a current level scanning signal, the drain is connected to the source of the second thin film transistor, and the gate of the second thin film transistor is connected to a previous level scanning signal. By designing the second thin film transistor to perform pre-discharge, the charging time is short and the required voltage is low when the first thin film transistor is refreshed, which can ultimately reduce power consumption and be more energy-saving and environmentally friendly.

The embodiment of the invention discloses a power connection method and a power connection system. The power-on system includes a first battery configured to supply power to the vehicle, a second battery, and a power-on power source. The power-on method comprises the steps that if a first battery of the vehicle is in a power-lack state, a power-on power source is adopted to charge the first battery; if the internal total voltage of the first battery reaches the preset first voltage, the second battery is adopted to charge the first battery, so that the problem of current impact on the first battery caused by relatively large charging current of the second battery for charging the first battery in the process of charging the first battery by the second battery can be avoided; and meanwhile, the problem of relatively long charging time caused by low-current charging of the first battery can be solved.