31results about How to "Reduce the discharge rate" patented technology

The invention discloses a battery state-of-health (SOH) optimization control method for a modular multilevel battery energy storage system, comprising the following steps: determining the relative SOH of all battery packs by measuring the rate of change in state of charge of the battery packs; presetting a state-of-charge change curve of each sub module battery pack; and balancing the SOH of all the battery packs in the charge/discharge state of the energy storage system according to the proportion of real-time input/output power assigned to different battery packs in the total power, and finally narrowing the difference between the battery packs in SOH. When the performance of an individual battery pack decreases, the discharge ratio and the discharge depth of the battery pack can be reduced by controlling corresponding modules of an MMC, and therefore, the battery pack is protected. Moreover, the thermal management requirement of the modular multilevel battery energy storage system is lowered.

The invention discloses a pouch lithium ionic battery case. The case comprises a main body, wherein an air bag is arranged on one side of the main body, and should be cut off after exhausted package;at least one pit is formed in the air bag and is raised outward; a case coated naked cell is subjected to top sealing and side sealing through the pit in the air bag, the volume of gas which is generated in air bag accommodation and formation can be improved; the section of the pit, parallel to the air bag, has a trapezoid shape, the shorter side of the two parallel sides of the trapezoid is closeto the main body, the outlet from which gas and electrolyte are exhausted is turned from narrow to wide, the electrolyte discharge speed can be effectively reduced, and the risk of polluting the battery case and lead by electrolyte flowing out from the air bag can be effectively reduced; and furthermore, a suction nozzle of an automatic injection machine can be placed among pits on the same sideof the air bag, so that the air bag area can be effectively utilized, and the case material can be saved. The pouch lithium ionic battery case is applied to the technical field of batteries.

The invention relates to a long-service-life high-specific-energy maintenance-free starting lead-acid storage battery and a production method thereof. According to the battery, lead plasters coated atthe upper portion and the lower portion of a grid of at least one of a positive electrode plate and a negative electrode plate are different, and the conductivity or the utilization rate of the leadplaster at the lower portion of the grid is superior to that of the lead plaster at the upper portion of the grid. According to the invention, the upper portion and the lower portion of an electrode plate adopt different formulas and are respectively coated and filled, wherein the acid content of the lead plaster at the lower portion is different so as to reduce that the apparent density of the lead plaster or the conductive substance content of the lead plaster at the lower portion is different so as to improve the utilization rate, so that the problem of low utilization rate of the active substance at the lower portion is effectively improved, and the capacity of the battery is improved; the internal resistance of the lower portion is reduced, and the utilization rate is improved, so that the problem of high proportion of upper discharge capacity is slowed down, wherein the upper discharge capacity of the electrode plate is reduced and the discharge rate is reduced under the condition of the same discharge capacity, so that the softening and falling of the active substance are reduced, and the service life of the battery is prolonged; and under the condition of the same paste coating amount, the capacity, the low-temperature discharge performance and the cycle durability of the prepared battery are improved.

The invention provides an electric power system for vehicles. The electric power system comprises at least one plumbic acid battery pack and at least one lithium ion battery pack. The at least one plumbic acid battery pack is in parallel connection with the at least one lithium ion battery pack. The electric power system for the vehicles further comprises a control module for controlling connection or disconnection of the at least one plumbic acid battery pack and the at least one lithium ion battery pack. The electric power system for the vehicles is long in service life and high in economy.

The invention discloses a V2G safety control method and system based on battery temperature and the health state. The V2G safety control method comprises the following steps that the battery temperature and the health state of an electric vehicle in the current state are obtained; whether a battery needs to be preheated or not is judged according to the acquired temperature; according to the battery temperature and the health state, in combination with a battery attribute data table, the maximum allowed discharge rate is given; and the power smaller than the maximum discharge rate is selected to feed back electric energy, the maximum temperature difference between all battery groups is measured after the electric energy is fed back for a period of time, and then the discharge rate is reduced if the maximum temperature difference exceeds a preset value. By means of the method, according to the battery temperature and the health state, the temperature difference between all battery groups is considered in the electric vehicle power energy feedback process to adjust the discharge rate, it is ensured that the electric vehicle can safely conduct energy feedback on a power grid, and meanwhile, additional losses caused to the battery in the using process can be reduced.

The invention provides a gallium-source reactor. The gallium-source reactor at least comprises a reaction layer, a first air inlet pipeline located on the top end of the reaction layer, and a first air outlet pipeline located on the bottom end of the reaction layer, wherein the bottom end of the first air inlet pipeline extends into the reaction layer and is arranged close to the bottom end of the reaction layer, and the top end of the first air outlet pipeline extends into the reaction layer and is arranged close to the top end of the reaction layer. According to the invention, since the bottom end, extending into the reaction layer, of the first air inlet pipeline is arranged close to the bottom end of the reaction layer and the top end, extending into the reaction layer, of the first air outlet pipeline is arranged close to the bottom end of the reaction layer, hydrogen chloride gas enters the reaction layer from the first air inlet pipeline; then since liquid metallic gallium totally soaks the bottom end of the first air inlet pipeline, the hydrogen chloride gas passes through the liquid metallic gallium and reacts with the liquid metallic gallium; eventually produced gallium chloride flows out from the first air outlet pipeline; and thus, the hydrogen chloride gas is allowed to fully react with metal gallium.

Disclosed plasma tail gas treatment equipment comprises a fixed base, the top of the fixed base is fixedly connected with a treatment device, the left side of the bottom of the front face of the treatment device is provided with a plasma generator, the bottom of the outer wall of the right side of the treatment device communicates with a gas outlet pipe, the top of the treatment device is provided with a top cover, and a sensor is arranged on the right side of the top of the top cover. The invention relates to the technical field of environment protection equipment. According to the plasma tail gas treatment equipment, internal damaged parts can be conveniently replaced, and a sensor is used for detecting the internal working state in real time, so that a plasma connecting piece can conveniently sterilize waste gas at a high temperature, and the convenience of internal circulating purification of a circulating mechanism and a purifying mechanism is further improved; and moreover, the probability that unpurified gas is exhausted is effectively reduced, the situation that internal electronic elements make contact with wet gas, and consequently internal components are damaged is avoided, and the dryness of the internal gas is guaranteed advantageously.

The invention discloses a 3-gear double-clutch automatic gearbox for an electromobile. The 3-gear double-clutch automatic gearbox comprises a clutch K1, a clutch K2, a synchronizer, an input shaft anda second shaft parallel to the input shaft. The clutch K1 and the clutch K2 are arranged at the two ends of the input shaft. The clutch K1 transmits power to the second shaft through a first-gear gear pair or a third-gear gear pair. The clutch K2 transmits power to the second shaft through a second-gear gear pair. The synchronizer is arranged on the second shaft, and located between the first-gear gear pair and the third-gear gear pair. By means of the three-gear design, a vehicle can obtain large torque when provided with a low-power motor, and the technical problem that the second gear of atwo-gear gearbox is powerless, the speed of the first gear is not enough, and the moment of force of the second gear is not enough is solved. The beneficial effects of being simple in structure and low in process cost are achieved. Balance between the dynamic property and the economical efficiency of the pure electromobile is achieved, the total power of a motor selected by the electromobile andthe load requirement of a motor system are reduced, and then the discharge rate of a battery is reduced.

The invention discloses a dynamic response large-scale solid-state battery energy storage system, and belongs to the technical field of energy storage batteries. Each normal-temperature solid-state battery module and each high-temperature solid-state battery module are separately connected with a DC-DC module, all the DC-DC modules are connected in parallel and then connected with a solid-state battery energy storage management module, the solid-state battery energy storage management module is connected with a DC-AC module, and the DC-AC module is connected to an external power grid. Each normal-temperature solid-state battery module comprises a plurality of solid-state battery single bodies arranged in an energy storage container. Each high-temperature solid-state battery module comprises a plurality of solid-state battery single bodies and a plurality of heating units which are arranged in the energy storage container. A plurality of temperature sensors are arranged in each of the normal-temperature solid-state battery modules and the high-temperature solid-state battery modules. Temperature sensors and heating units are connected with the solid-state battery energy storage management module. The response speed and the application range of the solid-state battery energy storage system are greatly improved, and the problem of low discharge rate of the solid-state battery at normal temperature is solved.

The invention relates to an amprolium hydrochloride-ethopabate-sulfaquinoxaline medicine composition powder which is added with sodium carbonate as a cosolvent of sulfaquinoxaline, and aims to solve the problem of solubility. Aerosol is added as an anti-caking agent for reducing the air-slaking and caking phenomenon in the storage process and prolonging the effective period; meanwhile with addition of a sweet wormwood extract and/or antifebrile dichroa extract with anti-coccidium active components, the relative weight increase rate of chicken is increased, the oocyst discharge rate is reduced, and the intestinal tract diseases are reduced. The invention further relates to a preparation method of the medicine composition powder. The preparation method is simple to operate, free of residue in the preparation process, and capable of effectively preparing an amprolium hydrochloride-ethopabate-sulfaquinoxaline composition which is good in solubility, free of slaking or caking in the storage process, good in treatment effect and long in expiry date. The medicine composition powder is applied to preparation of medicines for treating avian coccidiosis and is remarkable in medicine effect.

The invention discloses a powder food detection instrument which comprises a detection instrument tube, wherein a heating and mixing mechanism is arranged in the detection instrument tube. According to the powder food detection instrument, the detection instrument pipe and the heating and mixing mechanism are matched, force is applied to the rotary knob to enable the rotary rod and the tooth column to rotate at the same time, the first circular ring and the second circular ring can rotate at the same time and are opposite in direction through the meshing connection relation of the tooth columnand the tooth ring, a first vertical rod and a second vertical rod can rotate at the same time through transmission of a first vertical cylinder and a second vertical cylinder, and then a first stirring blade and a second stirring blade can mix a to-be-detected sample agent in the detection instrument pipe at the same time, so that the to-be-detected sample agent in the detection instrument pipeis fully and efficiently heated, and the uniform heating efficiency of the sample agent in the detection instrument pipe is improved.

The invention provides a power battery pack control method and a power battery pack, and the power battery pack control method comprises the steps: obtaining the power supply capability of a first battery pack and a second battery pack which are connected in parallel, the power supply capability comprising residual capacity and on-load voltage; according to the power supply capacity, a main discharge pack and an auxiliary discharge pack in the first battery pack and the second battery pack are determined, and the main discharge pack is suitable for supplying power to a load independently or supplying power to the load together with the auxiliary discharge pack; and when the auxiliary discharge pack supplies power to the load together, controlling the discharge current of the auxiliary discharge pack to be increased from low discharge current to high discharge current. The method has the beneficial effect that the discharging efficiency of the battery pack can be improved.

The invention belongs to the field of train brake shoes (brake pads), specifically a train brake shoe or brake pad made of a glass-ceramic composite material and a preparation method thereof, which solves the labor and mechanical cost of frequent tile replacement in the prior art. increase, and the environmental hazards of brake dust and exhaust gas. In terms of weight percentage, the composition of the glass-ceramic composite material is: glass-ceramic powder 35-42%, basalt chopped fiber 10-15%, fly ash 30-35%, graphite powder 5-7%, barite powder 9-15%, regulator 1-3%. The low crystallization point (<750°C) microcrystalline glass-ceramics proposed by the present invention and fly ash, basalt, barite powder as the main material are microcrystalline composite brake shoes manufactured by hot die casting method, which not only improves the wear resistance by 5 to 10 times , The friction coefficient is increased by 2 to 3 times, and the safety performance is better than that of the powder metallurgy brake shoe, and the cost is reduced by more than 70%. The emission rate of dust and harmful gas is reduced by more than 90%.

The invention belongs to the technical field of high-power ion sources, and particularly relates to a high-power high-current ion source four-electrode support base component. The component mainly comprises four large electrode flanges, three electrode brackets with a plurality of slit structures, and three PEEK insulating cavities. One insulating cavity is arranged between every two flanges, and every two flanges and the corresponding insulating cavity constitute a vacuum sealed insulating cavity with two open ends in a matching manner through an O-shaped fluorine rubber sealing ring. According to the electrode grid support base component, after the four layers of electrode flanges, the insulating cavities and a support frame are assembled in a sealing manner through sealing rings, the parallelism of the four layers of support planes is corrected. The parallelism of the electrode support planes can be kept within 0.04mm. The assembly tolerance of multiple work pieces is reduced. The non-uniformity of field intensity between electrodes is reduced. The exhaust port area of an electrode system is increased. The vacuum degree between electrode grid layers is reduced. The probability of electric breakdown during extraction of a high-power ion source is reduced.