34results about How to "Meet fast charging needs" patented technology

The invention discloses a charging method. The charging method comprises the steps of selecting a charging mode from at least one of a first charging mode and a second charging mode, wherein the charging speeds of the first charging mode and the second charging mode are different; and charging a battery according to a selection result. The invention also discloses electronic equipment. By the mode, the rapid charging demand of a user can be satisfied, meanwhile, the loss of available electric quantity of the battery is reduced, and the aging speed of the battery is reduced.

The application discloses a multi-channel charging circuit, comprising: a first-stage power converter, which converts an AC input voltage into a DC power supply voltage; a plurality of second-stage power converters, which are connected to the first-stage power converter and convert the DC power The power supply voltage is converted into a plurality of charging voltages; a plurality of charging ports are respectively connected with a plurality of second-stage power converters to charge the electrical equipment; and the protocol control module is based on the plurality of charging ports. The protocol parameters generate a first control signal to regulate the DC supply voltage, and a plurality of second stage power converter control signals to regulate a plurality of charging voltages. The protocol control module of the multi-channel charging circuit supports protocol communication and analysis of multiple charging ports, obtains the DC power supply voltage reference value according to the protocol parameters, and provides respective control signals to multiple second-stage power converters, so as to flexibly adjust the DC power supply. voltage, thereby supporting independent control of multiple powered devices and simultaneous fast charging.

The invention provides a negative electrode sheet and a laminated lithium-ion battery including the negative electrode sheet. The laminated lithium-ion battery using the negative electrode sheet can effectively increase the energy density of the laminated lithium-ion battery without loss of energy density. Fast charging capability of ion batteries. The negative electrode sheet of the present invention adopts double-layer coating technology, and the active material and surface density of the negative electrode sheet are specifically designed according to the potential and polarization distribution of the negative electrode sheet, and the edge position of the electrode sheet of the negative electrode sheet is controlled by using the double-layer coating technology. Double-layer coating is adopted; on the one hand, the accumulation mode of the negative electrode active material particles can be changed by double-layer coating, the edge polarization can be reduced, the reaction site can be increased, and the internal resistance can be reduced, so that lithium will not be precipitated at the edge; on the other hand, compared with a single Layer coating and double-layer coating can ensure a faster charging speed at the same surface density, so there will be no loss of energy density.

The invention discloses an energy control method of a laser wireless power transmission system based on the efficiency optimization, and belongs to the technical field of laser wireless power transmission. An energy control strategy is mainly composed of an efficiency optimized control strategy and an energy management optimization strategy. In the efficiency optimized control strategy, under the premise that the output power of a photovoltaic array meets the load and storage battery power requirements, an efficiency optimized operating point of the system is searched by gradually reducing the pulse width of an input pulse current of a laser. In the energy management optimization strategy, the system efficiency and system charging power are taken as control objectives, the pulse width of an input current of the laser is further reduced to search for an optimum operating point of the system, the average output power of the laser is properly reduced in the searching process of the optimum operating point of the system to maintain the output voltage ripple of the photovoltaic array within a limited range thereof, the impact of excessive voltage ripple on the efficiency of the photovoltaic array is avoided, the rapid storage battery charging needs are thus met and meanwhile the system is allowed to operate at the efficiency optimized point.

The invention provides a photovoltaic energy storage charging direct current micro-grid control method, and belongs to the field of direct current micro-grid control. According to the photovoltaic energy storage charging direct current micro-grid control method, direct current busbar voltage is firstly determined, and a control mode of a direct current micro-grid is chosen; in mode 1, a maximum power tracking output mode is adopted in a photovoltaic battery, a constant voltage mode is adopted in an energy storage battery to control the busbar voltage, and a super-fast-charge / fast-charge mode is adopted in an electric automobile; in mode 2, a constant voltage mode is adopted in the photovoltaic battery to control the busbar voltage, a current limiting charging mode is adopted in the energystorage battery, and the super-fast-charge / fast-charge mode is adopted in the electric automobile; in mode 3, the maximum power tracking output mode is adopted in the photovoltaic battery, a current limiting constant voltage mode is adopted in the energy storage battery to control the busbar voltage, and a slow charging mode is adopted in charging of the electric automobile; and in mode 4, the state of the photovoltaic battery and the state of the energy storage battery are the same with the mode 3, and a blocking mode is adopted in charging of the electric automobile. According to the photovoltaic energy storage charging direct current micro-grid control method, the busbar voltage can be controlled in all sorts of situations, and stable operation of a photovoltaic energy storage chargingdirect current micro-grid is guaranteed.

The invention discloses a charging approach identification and vehicle charging positioning system and method for vehicle quick charging. The system comprises charging equipment (1) and a new energy vehicle (2); a vehicle-mounted near-field communication module (21), a main control module (22), a first camera (23), a powdered device (24), a second camera (25), an image processing module (26), a third camera (27) and a display (30) are arranged on the new energy vehicle (2); the charging equipment comprises a charging equipment near-field communication module (11), a charging module (12), a charging device (13), and an identification label (14); the vehicle-mounted near-field communication module (21) is connected with the charging equipment near-field communication module (11), and the charging device (13) is connected with the powdered device (24). The readiness time for charging identification and communication connection before the quick charging of the new energy vehicle can be greatly shortened, the charging approach identification and positioning efficiency of the new energy vehicle can be greatly improved, and the vehicle quick charging demand can be satisfied.