13results about How to "Speed ​​up the charging process" patented technology

The invention discloses a carbon network interface optimized sodium ion battery positive electrode material, which is characterized in that ferric sodium pyrophosphate is used as a base material of the positive electrode material, and a carbon nanotube is filled between the base materials; the surface of the ferric sodium pyrophosphate base material is coated with an amorphous carbon layer, and the carbon content of the sodium ion battery positive electrode material is 1%-10%; and the specific surface area of the sodium ion battery positive electrode material is 20-25m < 2 > / g. According to the invention, oleic acid and the like are used as main carbon sources, carbon nanotubes are introduced to be inserted among positive electrode material particles, a sol-gel method is adopted to synthesize a precursor, and a finely controlled sintering process is adopted, so that the sodium ion battery positive electrode material with large specific surface area, rich pores and uniform carbon coating is successfully prepared, and the sodium ion battery positive electrode material shows relatively large capacity. The material shows excellent conductivity and structural stability. Compared with the existing positive electrode material, the material provided by the invention has higher ionic conductivity, has the advantages of safety, environmental protection and low cost, is suitable for the technical field of electrochemical energy storage batteries, and has a wide application prospect.

The invention relates to a storage battery electric quantity management system and method for anti-explosion mobile equipment, and the system comprises a control circuit which is used for collecting the power supply current of a power supply loop of an anti-explosion lead-acid storage battery pack, and controlling the connection and disconnection between an external power utilization device and the anti-explosion lead-acid storage battery pack according to the power supply current; the external sensor module is used for collecting dust concentration, combustible gas concentration and vibration quantity; the external charging module is used for connecting different external charging devices by switching the working mode of the external charging module; the control circuit is also used for controlling an external charging module according to the dust concentration, the combustible gas concentration, the vibration quantity and a power supply control signal, so that the explosion-proof lead-acid storage battery pack is connected or disconnected with the explosion-proof lead-acid storage battery pack through the control circuit; the safety performance of the system is improved.

The utility model relates to a battery energy storage cabinet, which comprises an energy storage cabinet body and an energy storage chassis, the energy storage cabinet body comprises a cabinet body, two hoisting fasteners, a PCS cabinet and a battery cabinet, two sides of the top of the cabinet body are respectively provided with a pair of hoisting holes, one hoisting fastener is arranged at the top of the cabinet body through the pair of hoisting holes, the hoisting fasteners are used for hoisting, and the PCS cabinet is connected with the battery cabinet. The PCS cabinet and the battery cabinet are mounted in the cabinet body; and an energy storage cabinet body is mounted on the energy storage chassis. According to the technical scheme, the PCS cabinet in the cabinet body is an energy storage converter and can be used for controlling the charging and discharging process of the storage battery, alternating current and direct current conversion is carried out, power can be directly supplied to an alternating current load in the absence of a power grid, and the battery cabinet is used for carrying out unified management and maintenance on the storage battery. And the charging, the installation and the safety are greatly improved. And the top of the cabinet body is provided with the hoisting fastener, so that hoisting is facilitated, movement is facilitated, the application range of the energy storage cabinet is enlarged, and applicability is improved.

The application discloses a charging control method and system of an electric vehicle, applied to the technical field of charging control, and comprises the following steps: obtaining historical charging data of each electric vehicle to be charged; extracting charging behavior features from each historical charging data, and determining the loss degree of each electric vehicle to be charged based on the charging behavior features; obtaining a corresponding power consumption influence coefficient according to the loss degree of each electric vehicle to be charged; generating an initial charging scheme based on the geographical distribution data of charging facilities and the real-time position information, trip information and power consumption influence coefficient of each electric vehicle to be charged; optimizing the initial charging scheme to obtain a charging control scheme of all electric vehicles to be charged; and sending a control instruction to each electric vehicle to be charged, wherein the control instruction is obtained from the charging control scheme. The charging control method and system of the electric vehicle provided by the application effectively improve the reliability of charging control.

The invention relates to the technical field of new energy automobile charging management, in particular to an intelligent charging and discharging optimization method and system for a new energy automobile charging station battery, and the method comprises the steps: constructing a charging demand prediction model through employing a long short-term neural network LSTM model, and predicting the charging demand of a future time period; constructing a multi-type optimized charging and discharging strategy which comprises a peak load shifting strategy and a new energy consumption strategy; a battery charging efficiency evaluation model is constructed, the charging efficiency is monitored in real time, and abnormity is warned in time; based on the evaluated battery charging efficiency, constructing a battery charging scheduling model of the charging station, and when a plurality of batteries are charged at the same time, solving a global optimal charging power distribution scheme; according to the method, multiple aspects of charging demand prediction, charging and discharging strategy optimization, battery efficiency evaluation, charging scheduling and the like are comprehensively considered, and an effective solution is provided for intelligent operation of the new energy automobile charging station.

The application discloses a high-voltage starting circuit, comprising a logic module, a first capacitor C1, a starting module and a load in connection with each other; the starting module comprises an initial starting branch, one end of which is connected with the load and the other end of which is connected with the first end of the first capacitor C1, and the initial starting branch comprises a first MOS tube Q1, a first resistor R1 and a first switch K1; the initial starting branch is configured to be turned on when the voltage of a starting voltage source is greater than a starting threshold voltage, so as to provide an initial charging current for the first capacitor C1; a fast starting branch is connected between a first node A at the output end of the load and the first end of the first capacitor C1, and is configured to be turned on when the voltage of the first capacitor C1 is greater than a fast charging threshold voltage, so as to provide a fast charging current for the first capacitor C1; the initial starting branch and the fast starting branch are connected with the logic module, and the logic module is configured to make the initial starting branch and the fast starting branch both be turned off when the voltage of the first capacitor C1 is greater than an off threshold voltage.

The utility model discloses a signal amplification circuit of a human body pyroelectric infrared sensor, which comprises a sensor circuit, a first-stage amplification circuit with a signal input end electrically connected with the sensor circuit, and a second-stage amplification circuit with a signal input end electrically connected with a signal output end of the first-stage amplification circuit, the central control chip and the charging circuit are electrically connected with the signal output end of the second-stage amplifying circuit, and the signal amplifying circuit power input circuit is electrically connected with the sensor circuit and the second-stage amplifying circuit. A signal amplification circuit working capacitor is arranged between the first-stage amplification circuit and the second-stage amplification circuit, when the signal amplification circuit of the human body pyroelectric infrared sensor is in cold start, the charging circuit outputs a high level, and the second-stage amplification circuit assists in charging the signal amplification circuit working capacitor. Therefore, the charging time of the working capacitor of the signal amplification circuit is reduced, and the preheating time of the signal amplification circuit is reduced. And the preheating time can be shortened by 50-70%.

The invention discloses an electric vehicle and a method for controlling charging and discharging operations of the electric vehicle. An electric vehicle includes: an AC connector; a motor connected to the first AC terminal at a neutral point of the motor; an inverter including a plurality of first branches connected between the two DC terminals, each arm of the plurality of first branches being connected to a corresponding winding of the plurality of windings of the electric machine; a second branch, both ends of which are connected to the two DC terminals, while an arm of the second branch is connected to the second AC terminal; and a controller configured to control the switching elements of the first branch and the second branch.

The invention discloses a high-voltage lithium cobalt oxide positive electrode material and a method and application for improving the spin state of the high-voltage lithium cobalt oxide positive electrode material, and belongs to the technical field of battery preparation. The method specifically comprises the following steps: (1) preparing a lithium cobalt oxide coarse material, and then crushing and sieving the lithium cobalt oxide coarse material; and (2) collecting the sieved powder, and treating the powder by adopting at least two modes of magnetic field assistance, plasma treatment and calcination to prepare the high-voltage lithium cobalt oxide positive electrode material with a raised spin state. The high-voltage lithium cobalt oxide positive electrode material with high spin-state Co < 4 + > is prepared through cooperation of different treatment modes in magnetic field, plasma and sintering treatment, the coverage degree of lattice oxygen energy bands is improved, and lattice oxygen sites are anchored; the volume expansion of the lithium cobalt oxide is inhibited through a magnetostrictive effect, so that the arrangement of an ordered layered structure of the high-voltage lithium cobalt oxide positive electrode is realized; meanwhile, dissolution of Co < 4 + > can be inhibited in a high-voltage interval, and the defect that a material interface is unstable can be overcome.

The invention belongs to the technical field of high polymer materials, and discloses an application of a conjugated microporous polymer material in preparation of a photoresponse zinc ion battery. The conjugated microporous polymer material has a narrow forbidden band, high carrier mobility and a small electron transfer barrier, is beneficial to improving the light capture capability, accelerating charge separation and transportation and effectively improving the photocatalytic activity, can also be directly used as a photo-anode in a photo-assisted rechargeable zinc ion battery, and can be applied to the field of photo-assisted rechargeable zinc ion batteries. According to the present invention, the zinc ion battery prepared by the method can absorb photons, produce photo-induced electrons and holes, promote the charge-discharge reaction of the battery, has the energy saving effect when applied to construction of the zinc ion battery, and can achieve the efficient synergistic conversion of solar energy and electric energy, and the photo-assisted rechargeable zinc ion battery prepared by using the zinc ion battery has significant photo-response voltage under illumination, the method has a wide application scene in the field of photoresponse cells.

The invention discloses a battery fast charging power boundary control method, electronic equipment and a computer program product, and the method comprises the steps: obtaining a first charging power and a second charging power, the first charging power being a power which enables the heat production capability and the heat dissipation capability to reach balance under the condition that a battery is continuously charged; the second charging power is the power capable of reaching the highest temperature after the battery is charged for preset time; determining a real-time power volume according to the first charging power and the real-time power in the battery charging process; the real-time power volume represents accumulated energy of temperature change of the battery when the battery is charged with real-time power; determining a limited power volume according to the first charging power, the second charging power and a preset time; the limited power volume represents accumulated energy when the battery is heated to the highest temperature when the battery is charged at the second charging power; according to the technical scheme provided by the invention, the charging efficiency is improved while the charging safety is ensured.

This application discloses an electrical connector and connector assembly, relating to the field of electronic products. It includes a housing and a connecting shell fixed to one end of the housing. An insulating body first and an insulating body second are fitted inside the housing near the connecting shell. A second connecting terminal is embedded inside the insulating body second. A hook is provided at the top of the second connecting terminal, and a first connecting terminal is provided at the top of the hook. A dustproof mechanism is provided at the top of the housing, and clamping mechanisms are symmetrically arranged at the end of the housing away from the dustproof mechanism. This application replaces the traditional circuit board-based connection method by directly soldering wires to the soldering ends of the first and second connecting terminals, reducing energy loss during charging or data transmission, improving the efficiency of charging or transmitting current, facilitating the carrying of higher power or more stable signals, and dividing the first connecting terminal into multiple independent pins to achieve synchronous connection of multiple signals or power supplies.

The invention relates to a battery system and a method for operating a battery system. The invention relates to a battery system (1), which has a battery management system (2) for operating the battery system (1) in a controlled manner and at least two battery cells (10). The invention also relates to a method for operating the battery system (1).