53results about How to "Stable battery" patented technology

A battery management system is disclosed for control of individual cells in a battery string. The battery management system includes a charger, a voltmeter, a selection circuit and a microprocessor. Under control of the microprocessor, the selection circuit connects each cell of the battery string to the charger and voltmeter. Information relating to battery performance is recorded and analyzed. The analysis depends upon the conditions under which the battery is operating. By monitoring the battery performance under different conditions, problems with individual cells can be determined and corrected.

Disclosed herein is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film is made from a resin composition. The resin composition comprises 100 parts by weight of a polyethylene composition including 10-50 wt % polyethylene having a weight average molecular weight of from 2×105 to less than 5×105 (component I) and 90-50 wt % diluent (component II), and 0-150 parts by weight of inorganic powder (component III). The film has a puncture strength of 0.20 N / μm or more and a gas permeability (Darcy's permeability constant) of 1×10−5 Darcy or more. The microporous polyethylene film has excellent physical properties, thus improving the performance and stability of a battery.

The invention discloses an intelligent oil-electricity hybrid power system of a communication base station. The intelligent oil-electricity hybrid power system comprises mains supply, hybrid energy, a hybrid energy manager, a DC / DC (direct current / direct current) conversion controller and a storage battery. The hybrid energy comprises a diesel generating set which is a variable-frequency direct-current generating set, wind energy and solar energy. The mains supply and the hybrid energy are connected with an input end of the hybrid energy manager. An output end of the hybrid energy manager is connected with an input end of the DC / DC conversion controller. An output end of the DC / DC conversion controller is connected with a load. The storage battery is connected with the load and the output end of the DC / DC conversion controller. By the intelligent oil-electricity hybrid power system, seamless switching between the variable-frequency direct-current generating set and renewable energy is realized, the renewable energy can be fully utilized while atmospheric pollution can be reduced, and great significance for human environment protection is achieved.

Disclosed herein is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film is made from a resin composition. The resin composition comprises 100 parts by weight of a polyethylene composition including 10-50 wt % polyethylene having a weight average molecular weight of from 2×105 to less than 5×105 (component I) and 90-50 wt % diluent (component II), and 0-150 parts by weight of inorganic powder (component III). The film has a puncture strength of 0.20 N / μm or more and a gas permeability (Darcy's permeability constant) of 1×10−5 Darcy or more. The microporous polyethylene film has excellent physical properties, thus improving the performance and stability of a battery.

The invention discloses a hydrogen energy storage solar coal-fired coupling type flexible power generation system and an operation method. The system comprises a coal-fired power generation system anda hydrogen energy storage system, wherein the coal-fired power generation system is coupled with solar thermal power generation through a solar heat collection device, a heat storage medium, a watersupply heat exchanger, a primary water supply regulating valve and a secondary water supply regulating valve; the hydrogen energy storage system comprises a rectifier switch, an electrolytic hydrogenproduction tank, an oxygen storage tank, a hydrogen-oxygen fuel cell, an inverter switch and the like; the water supply flow of heat exchange of the heat storage medium flowing through the solar heatstorage device is regulated through the primary water supply regulating valve and the secondary water supply regulating valve, so that the solar energy is utilized to the maximum extent and the coal consumption is reduced; operation of the electrolytic hydrogen production tank and the hydrogen-oxygen fuel cell is controlled through calculating the power generation power change caused by solar irradiation; the system power generation power fluctuation caused by the solar irradiation change is quickly counteracted; the power transmitted to a power grid is stable; the problem of light abandoningis solved; the quick load change and wide load operation capability of a unit can be greatly improved; and the hydrogen energy storage solar coal-fired coupling flexible power generation system is small in structural transformation degree of an original coal-fired power generator set, small in investment and good in economy.

A battery, including a cathode, an anode, an electrolyte; the cathode including a cathode active material capable of reversibly intercalating-deintercalating ions; the anode including an anode current collector that does not participate in the electrochemical reaction; the electrolyte including a solvent capable of dissolving solute, the solute being ionized to at least an active ions that can be reduced to a metallic state during a charge cycle and be oxidized from the metallic state to the dissolved ion state during a discharge cycle and / or an intercalation-deintercalation ions that can deintercalate from the cathode active material during the charge cycle and intercalate into the cathode active material during the discharge cycle; the anode further comprising an anode active material formed on the anode current collector capable of being oxidized and dissolved to active ion state during the discharge cycle.

It is energy economical, low in cost, high in energy storage, adjustable in output power, and directly linking with urban network. It comprises the water pool for cooling and recovering heat from the fly wheel energy storage sub systems, with several energy storage system's permanent DC generator power sum big or equal to the required recovery or reproduction demanded power for the traction of vehicles, and they use overlap mode to directly connect with the urban DC network, air pressure inside the shell equal or lower than 10-4Pa and the limit rotation speed higher than 150000 rpm of the fly wheel, with the bearing using magnetic bearing.

The invention discloses a solar-driven noiseless stirring apparatus, comprising a double-layer stirring housing having water stored in its interlayer, a drive motor and a reducing gear arranged at the top of the stirring housing, a coupling arranged inside the stirring housing, a stirring shaft arranged inside the stirring housing, stirring blades mounted on the stirring shaft, a support frame arranged at the top of the stirring housing, a solar panel mounted at the top of the support frame, a solar controller and a solar battery mounted on the support frame, and a solar heater mounted at the top of the stirring housing; the solar heater comprises a spherical vacuum glass hood, a heating ball, a sunlight reflecting arc sheet and a heat-conducting plug; the stirring housing is provided with a water incoming pipe, a water outgoing pipe, rollers and a push handle; a silencing device is arranged on the stirring housing and the drive motor and comprises two light-weight metal plates and silencing sponge. The problems are solved that the prior art wastes energy, temperature is unable to be adjusted during stirring, carrying is inconvenient and the noise is high are solved.

The invention discloses a simple harmonic potential energy voltage stabilization power generation device. The simple harmonic potential energy voltage stabilization power generation device comprises a shell, a spinning top, a transmission system and a power generator, wherein the spinning top is hung in the shell through a spinning top supporting shaft located at the upper end of the spinning top and can swing in a reciprocating mode, a spinning top N-pole permanent-magnet strong magnetic block and a spinning top S-pole permanent-magnet strong magnetic block are arranged on the two sides of the spinning top in the swinging direction correspondingly, fixing permanent-magnet strong magnets are arranged in the shell relative to the spinning top N-pole permanent-magnet strong magnetic block and the spinning top S-pole permanent-magnet strong magnetic block correspondingly, the fixing permanent-magnet strong magnets, the spinning top N-pole permanent-magnet strong magnetic block and the spinning top S-pole permanent-magnet strong magnetic block are arranged in a manner that the same magnetic poles are opposite, wind beam nozzles are arranged on the fixing permanent strong magnetic blocks correspondingly, and the transmission system can transmit power formed by swinging of the spinning top to the power generator. According to the simple harmonic potential energy voltage stabilization power generation device, damping vibration of the spinning top is converted into simple harmonic motion, the simple harmonic motion of the spinning top forms stable potential energy, then the stable potential energy is converted into stable mechanical kinetic energy, and then a generator set is driven to generate the power.

The invention discloses an automatic voltage stabilizing power supply device, comprising: a normally open switch connected with the first electrode of an AC power supply; a third contactor, one end of the coil of which is connected with the other end of the normally open switch, and the other end is connected with the AC power supply The second electrode of the third contactor is connected, and the first normally open switch of the third contactor is connected in parallel with the starting normally open switch; the time relay, its coil is connected between the normally open switch and the AC power supply; the first and second contactors, both One end of the coil of the time relay is connected in series with the auxiliary switch of the time relay, the third normally open switch of the third contactor and the AC power supply in turn, and the other end is connected with the AC power supply; The open switch is connected to the AC power supply; the storage battery pack is connected to the step-down rectification device through the second normally open switch of the second contactor; and the voltage detector is connected to the storage battery pack, and its auxiliary switch is connected to the auxiliary switch of the time relay in parallel. The power supply of the device is relatively stable.

The invention discloses an electric car with a self-power-generation function. The electric car with the self-power-generation function comprises a frame, wheels, handlebars and a power device, wherein the power device comprises power-generation hubs, an electric energy processing module and a battery module; the power-generation hubs are arranged on the front wheel and / or the rear wheel of the electric car, both the electric energy processing module and the battery module are arranged in the frame of the electric car, the power-generation hubs are connected with the battery module through theelectric energy processing module, and the electric energy processing module comprises a bridge rectifier unit, a filter unit and an intelligent current identification unit which are sequentially connected; the intelligent current identification unit is connected with the battery module, the battery module comprises a battery management unit and a storage battery which are sequentially connected,and the storage battery is connected with an electric car battery through a power line. According to the electric car with the self-power-generation function, power is generated through rotation of the wheels and used by a display instrument and the electric car battery, so that the flameout phenomenon caused by power shortage of the electric car is prevented, safe running of the electric car isguaranteed, the structure is simple, use is convenient, and the electric car with the self-power-generation function is safe and reliable.

The invention provides a pneumatic type wave energy power generation device which is mainly used for ocean wave energy power generation. According to the pneumatic type wave energy power generation device, large-scale power generation can be achieved, the quantity of generated power is stable, and the power generation device can be directly connected to the national power grid. The pneumatic type wave energy power generation device is mainly composed of a pushing plate 1, a rotating rod 2, a shell 3, a floating box 4, a pushing rod 5, a spring 6, a piston 7, a pneumatic cylinder 8, a pushing chamber 9, an air inlet pipe 10, an air inlet one-way valve 11, a one-way valve 12, an energy storage chamber 13, a constant pressure valve 14, a generator set 15, a generator chamber 16, a deflector 17, a hole A 20 and a hole B 21. The main operating principle of the pneumatic type wave energy power generation device is that sea waves impact the pushing plate 1 to move to the left, the pushing plate 1 pushes the piston 7 to move to the left through the pushing rod 5 so that air in the pneumatic cylinder 8 can be compressed and fed into the energy storage chamber 13, and the compressed air in the energy storage chamber 13 is subjected to equal-pressure releasing through the constant pressure valve 14 to blow a rotor of the generator set 15 to rotate, so that a generator generates power.

The invention discloses a hydrogen energy storage solar coal-fired coupling type flexible power generation system and an operation method. The system comprises a coal-fired power generation system anda hydrogen energy storage system, wherein the coal-fired power generation system is coupled with solar thermal power generation through a solar heat collection device, a heat storage medium, a watersupply heat exchanger, a primary water supply regulating valve and a secondary water supply regulating valve; the hydrogen energy storage system comprises a rectifier switch, an electrolytic hydrogenproduction tank, an oxygen storage tank, a hydrogen-oxygen fuel cell, an inverter switch and the like; the water supply flow of heat exchange of the heat storage medium flowing through the solar heatstorage device is regulated through the primary water supply regulating valve and the secondary water supply regulating valve, so that the solar energy is utilized to the maximum extent and the coal consumption is reduced; operation of the electrolytic hydrogen production tank and the hydrogen-oxygen fuel cell is controlled through calculating the power generation power change caused by solar irradiation; the system power generation power fluctuation caused by the solar irradiation change is quickly counteracted; the power transmitted to a power grid is stable; the problem of light abandoningis solved; the quick load change and wide load operation capability of a unit can be greatly improved; and the hydrogen energy storage solar coal-fired coupling flexible power generation system is small in structural transformation degree of an original coal-fired power generator set, small in investment and good in economy.

The present application discloses a charging method, device, storage medium, and electronic equipment. The charging method is applied to electronic equipment, including: detecting whether the electronic equipment receives a charging instruction; if the electronic equipment receives a charging instruction, using The external power supply charges the spare battery and the battery; during the charging process of the spare battery and the battery, it is detected whether the external power supply is pulled out; if it is detected that the external power supply is pulled out, then use The backup battery charges the battery. In the embodiment of the present application, after the electronic device is charged and unplugged, the spare battery is used to charge the battery of the electronic device to fill the virtual power of the electronic device. Even if the electronic device communicates immediately after charging and unplugging, the filled virtual power can supply When used in communication, it will not cause the power of the electronic device to drop very much instantly, keep the power of the battery stable, and improve the user experience.

The invention discloses a lithium battery soft pack fixing method and device. The method comprises the following steps that 1, according to the lithium battery soft pack size, two front end fixing blocks are moved along a front block sliding groove; the gap of the two front end fixing blocks is regulated; 2, a lateral end fixing block rotates around a front block hinge sleeve; the lateral end fixing block outwards slides along a lateral block sliding groove, so that the lateral end fixing block is opened; a back end fixing block outwards slides along a back block sliding groove; 3, a lithium battery soft pack is put on a rolling shaft; under the rotation of the rolling shaft, the lithium battery soft pack passes through a position between the two side end fixing blocks; one side of the lithium battery soft pack is abutted against the inner side of the two front end fixing blocks; 4, the two side end fixing blocks inwards slide along the lateral block sliding groove; the two sides of the lithium battery soft pack are clamped; the back end fixing block moves towards the front end fixing block along the back block sliding groove; the back end fixing block is abutted against the bottomside of the lithium battery soft pack. The lithium battery soft pack fixing method and device have the advantages of wide applicability, battery firmness and operation safety.

The invention discloses a wind power generation system which comprises a central control system, a power control system, an accessory power system, a transition system and an energy storage device, wherein a power generation machine outputs power for a load by the transition system; when the rated power generation rotation speed is realized, redundant power is stored in the energy storage device and can be used for accessory power generation; the central control system is used for adjusting the angles of rotor blades by an angle controller, so that the wind power area of the rotor blades is enlarged. The wind power generation system disclosed by the invention is reasonable in design, and can be used for adjusting the angles of the rotor blades, so that the wind power utilization rate is increased; in addition, the redundant power generated in a power generation peak can be stored for making up a defect of insufficient power in a power generation peak bottom, and the wind power generation system has the advantage of stability of electric power output.