114 results about "Lead–acid battery" patented technology

A battery such as, but not limited to, electric vehicle battery packs and cells, lithium iron phosphate batteries, lead acid batteries, gel batteries, and absorbed gel mat batteries, may include a battery management system for engine start applications. The battery may include a first power port configured to receive power from a first power source and a second power port configured to received power from a second power source, whereby the first and second power sources are different.

The application discloses a glass fiber separator for lead-acid storage batteries and a preparation process thereof and belongs to the technical field of automobile lead-acid storage batteries. The separator is prepared from superfine glass fibers as a base, with the addition of nano-silicon dioxide fillers, nano-attapulgite-nano-boron nitride modifiers, dispersants, binders and acid-resistant stabilizers, and is prepared through wet papermaking, segmented drying and hot-pressing shaping. The separator has the advantages of high porosity, fast acid absorption speed, high tensile strength, acid-erosion resistance and low thermal shrinkage rate, and the 100% DOD cycle life of an assembled battery can reach 912 times, the service life of a starting battery for an automobile is significantly prolonged, the process is stable and environment-friendly, and the process is suitable for industrial mass production.

The utility model provides a kind of high power density's lead-acid battery assembly structure, belong to battery technical field.This assembly structure includes: be equipped with several along vertical extension's sliding slot on the inner wall of box, bottom frame is equipped with in the bottom surface inside box, several placing grooves are equipped with in the inside of bottom frame, lead-acid battery is located in placing groove, hollow board is equipped with between adjacent lead-acid battery, sliding block is equipped with outside limiting ring, sliding block and sliding slot sliding fit, limiting ring keeps between lead-acid battery and the inner wall of box, plug-in board is equipped with in the lower end of pressure ring, plug-in board is inserted in the mouth, pressure ring is pressed on the upper end of lead-acid battery, locking pin is rotatably connected with in the upper end edge of box, locking pin is pressed on the upper end of pressure ring.This assembly structure can stably play the load bearing, fixed effect to battery, make each outer wall of battery be limited and positioned, to realize good anti-vibration performance.Moreover, this assembly structure is convenient, efficient to disassemble and assemble.

The application discloses a novel vehicle-mounted high-low voltage fusion power supply network, comprising: a modular 48V high-voltage energy storage unit, which is composed of N lithium ion battery packs with a nominal voltage of 48V in series, forms a high-voltage DC bus, and each battery pack is integrated with an independent battery management subsystem; a full-isolation three-port DC / DC converter, whose high-voltage input end is connected to the high-voltage DC bus, has two low-voltage output ends that are electrically isolated from each other and completely isolated from the high-voltage side, wherein the first low-voltage output end is a 12V output end, directly connected to a vehicle 12V electrical network, and the second low-voltage output end is a 48V output end, serving as a medium-voltage distribution bus; through modular high-voltage energy storage, full-isolation multi-port power conversion, intelligent power distribution control and hardware-level redundancy design, the architecture completely cancels the 12V lead-acid storage battery, and realizes efficient, safe and bidirectional flow of energy among multiple voltage domains.

This invention discloses a novel device and method for quantitatively detecting the sealing performance and leakage rate of lead-acid batteries. The device includes a lead-acid battery with a safety valve valve connected to its safety valve port. One end of the safety valve valve is connected to a rubber hose with a pointer pressure gauge mounted on it. The end of the rubber hose furthest from the safety valve valve is connected to a pressure relief valve, which is connected to an airbag ball valve. A positive pressure is applied to the battery safety valve, and the leakage rate is calculated by monitoring the pressure change inside the cavity caused by battery leakage. The entire testing device requires no electrical equipment, making testing more convenient. It can also test different battery models, broadening its applicability.

This invention relates to a robust and corrosion-resistant three-dimensional lead grid coupled with a nano-solid electrolyte interphase material, its preparation method, and its application. The invention employs a simple and scalable constant current electro-etching method to form a three-dimensional structure on the lead grid surface while simultaneously generating a uniform and stable nano-solid electrolyte interphase in situ on the surface of the structure. The combination of the three-dimensional lead grid structure and the in-situ grown solid electrolyte interphase effectively overcomes the problems of lead grid corrosion and active material shedding in lead-acid batteries. The two work synergistically to extend the cycle stability of the battery, providing a new strategy for the development of lead-acid batteries.

A comb plate structure for welding side lugs and a welding fixture for lead-acid batteries are disclosed. The positive and negative electrode plates of the battery mate with the comb teeth of the comb plate. Lead-biased parts and straight terminals are placed in the grooves of the comb plate. The fixture includes a feeding structure for placing the comb plate, a clamping structure for clamping the electrode group, and a frame for placing the clamping structure. The electrode group is fixed by manually turning the handwheel of the frame, and the comb plate and lugs are fixed by manually turning the handwheel of the feeding structure to weld the lead-biased parts and the lugs of the electrode group together, thereby assembling the battery. This structure is suitable for electrode plates with side lug structures, which can save R&D costs, shorten development time, and quickly verify design schemes.

This invention discloses a method for repairing lead-acid batteries, belonging to the field of lead-acid battery technology. It solves the problems of low production efficiency, low success rate, or low quality in existing reverse charging methods for repairing lead-acid batteries. The method includes the following steps: sequentially discharging, reversing the polarity for charging, reversing the polarity for discharging again, and charging with the polarity in the lead-acid battery; during step 2, ensuring that the highest temperature reached by the lead-acid battery exceeds the upper limit of its temperature control range during normal use or repair; and / or, in steps 1 and 2, when the voltage change of the lead-acid battery passes through the over-discharge voltage range with the polarity in the lead-acid battery and the over-discharge voltage range with the reverse polarity in the lead-acid battery, maintaining the temperature change of the lead-acid battery as an upward trend. This method can be used for the repair of lead-acid batteries.

This utility model relates to the field of exhaust valve technology and discloses a safety exhaust valve for lead-acid batteries, including a lead-acid battery body and an exhaust valve pipe. Terminals are fixedly connected to the top of the lead-acid battery body near both sides. A housing is fixedly connected to the middle of the lead-acid battery body. A threaded ring is fixedly connected to the outer wall of the exhaust valve pipe near the bottom. The outer wall of the exhaust valve pipe is movably sleeved with the middle of the housing. An inverted conical cavity is opened in the middle of the inner wall of the exhaust valve pipe. The gas inside the lead-acid battery body has a certain temperature. When it encounters the condenser tube, it liquefies and flows back into the lead-acid battery body, reducing electrolyte moisture loss. The gas is buffered by the honeycomb buffer layer, pushing the push rod to move. Under the action of the hanging plate, the spring is compressed, which in turn pushes the rubber cap upward. Under the action of the sealing ring, the airtightness between the exhaust valve pipe and the rubber cap is further improved, preventing outside air from entering.

The utility model discloses a name is a kind of laboratory lead-acid battery and paste machine's cleaning device. Belong to lead-acid battery technical field. It mainly solves the problem of low cleaning efficiency and unclean cleaning existing in current manual cleaning. Its main features are: by cover, high-pressure spray head, brush and ultrasonic oscillator constitute. Wherein, the cover is matched with paste machine upper port, and cover center is equipped with brush through-hole, and cover periphery is symmetrically equipped with spray head installation through-hole. The brush is composed of brush head and control rod, control rod is equipped with brush installation through-hole by first rotary lifting mechanism, and brush head is in contact with paste machine side wall. High-pressure spray head is equipped with spray head installation through-hole by second rotary lifting mechanism. The ultrasonic oscillator is connected to power supply by lead wire. The utility model has the characteristics of simple structure, convenient operation, high cleaning efficiency and clean cleaning, and is mainly used for cleaning after small and paste machine and paste completion.

The application relates to the field of cooling devices and provides a lead-acid battery internal formation constant-pressure water supply circulating cooling system, which comprises multiple water baths, cooling water flows through the water baths, and lead-acid batteries to be internally formed are located in the water baths; a hot water pool, an input end of the hot water pool is connected with an output end of the water bath through an underground ditch; a cooling tower, an input end of the cooling tower is connected with an output end of the hot water pool, and the cooling tower is used for reducing the temperature of the cooling water; a cold water pool, an input end of the cold water pool is connected with an output end of the cooling tower; multiple cooling water pumps, input ends of the cooling water pumps are connected with the cold water pool, output ends of the cooling water pumps are connected with the water baths, and each water bath is independently connected with one cooling water pump. The lead-acid battery internal formation constant-pressure water supply circulating cooling system has the advantages that the cooling water flow in each water bath is consistent, the temperature in each water bath is basically consistent, and the consistency of the activation process of the lead-acid battery is ensured.

The present application relates to lead-acid battery manufacturing equipment technical field, and relates to a kind of lead-acid battery coating pole group automatic shaping machine, comprising: rack;Front-end conveying mechanism, is set to the input end of the rack;Back-end conveying mechanism, is set to the output end of the rack;Pole group shaping mechanism, is set to the rack and is located between the front-end conveying mechanism and back-end conveying mechanism;The pole group shaping mechanism includes support, drive source, rotating shaft and at least four upper and lower shaping units evenly distributed along the circumference of the rotating shaft;The rotating shaft can be rotatably connected to the support, and is driven by the drive source to rotate intermittently;Upper and lower shaping unit is fixed to the rotating shaft, for accommodating the shaping station of single pole group;The drive source can drive the rotating shaft to rotate intermittently by fixed angle.The present application overcomes the existing pole group shaping equipment due to the slow production rhythm of single-station sequential or batch processing mode and low equipment utilization.

This invention relates to the field of battery technology, specifically disclosing an electrolyte density adjustment device for a flooded lead-acid battery. The device includes a valve body with a level sensor A, a level sensor B, and a density sensor connected to it. Level sensor A and level sensor B are used to monitor high and low electrolyte levels, respectively. A water injection pipe is connected to the valve body, one end of which is connected to a storage tank for storing pure water. A first solenoid valve is installed in the water path between the water injection pipe and the storage tank. The first solenoid valve, level sensor A, level sensor B, and density sensor are electrically connected to a controller. The valve body is cylindrical in shape, with a locking block at the top and a sealing groove on its outer surface containing a sealing ring. Compared to existing technologies, this invention ensures a stable electrolyte concentration and maintains a normal chemical reaction environment while adding pure water, which is beneficial to the battery's discharge performance and lifespan.

This utility model relates to the field of lead-acid battery technology, and more particularly to a vacuum formation device for lead-acid batteries, including a formation cabinet and a liquid collection box. The liquid collection box is fixedly connected inside the formation cabinet, and a charging chamber is slidably connected to the upper surface of the liquid collection box. A circulating cooling component is installed inside the formation cabinet, and the circulating cooling component includes a cooling chamber, a cooling water tank, a connecting pipe, and a linkage rod. The cooling chamber is fixedly connected inside the charging chamber, and two cooling water tanks are fixedly connected to the outer surface of the formation cabinet. This utility model enables the coolant to circulate repeatedly through the coordinated action of parts such as the cooling water tank, the cooling chamber, and the piston plate. The coolant discharged from the cooling chamber carries away the heat in the charging chamber, preventing the continuous accumulation of heat from causing excessive temperature damage to the battery or an explosion. After cooling down, the discharged coolant re-enters the cooling chamber, realizing the recycling of resources.

The utility model discloses a joint safety interlocking device for the ground air conditioning unit of the towing type airplane, including the first travel switch, second travel switch, lead -acid battery and warning light buzzer of setting on the casing of the ground air conditioning unit of the towing type airplane, the first travel switch sets up at one side of the air hose joint storage place of the ground air conditioning unit of the towing type airplane, and the second travel switch sets up at one side of the towing bar of the ground air conditioning unit of the towing type airplane, and the lead -acid battery is used for the power supply of first travel switch and second travel switch. The casing is provided with the battery charger for charging the lead -acid battery. The casing is provided with the electric quantity display table for showing the electric quantity of lead -acid battery.

This invention belongs to the field of lead-acid battery technology, specifically relating to a processing technology for gel lead-acid batteries. The gel lead-acid battery processing technology includes the following steps: Acid cycling formation: After the battery completes acid cycling formation, it is cooled; Pre-cycle discharge: The cooled battery is transported to the gel cycling system area, a gel cycling connector is installed, and the circuit is connected for discharge. After discharge, the battery begins gel cycling; Battery gel cycling: A gaseous SiO2 and H2SO4 solution is added to the gel cycling system. After discharge, the gel cycling system is started to begin gel cycling; Battery charging: At the end of the gel cycling phase, the battery is charged with a constant current. After charging, the gel cycling is stopped, the battery is drained, and then charged with a constant voltage. The gel lead-acid battery processing technology provided by this invention, by adjusting the ratio of silica and sulfuric acid solution, and by using a specific gel cycling process and gel cycling connector, reduces the production cycle and production cost, and improves product quality.

This invention provides a dry-process powder-bonded thin-film electrode for lead-acid batteries and its preparation method. Addressing the acidic environment of lead-acid battery systems and the high-density characteristics of lead-based materials, this invention combines raw material selection with fully dry process control. A mixed dry powder, including lead-based active materials, conductive agents, and binders, obtained through low-speed dry mixing, is directly formed into an electrode film on a current collector. Then, hot-pressing is used to in-situ trigger the fibrous bonding material of the binder to form a composite film and achieve electrode film densification. This significantly improves the interfacial bonding force and structural uniformity of the electrode, solving technical problems such as solvent pollution and high energy consumption in traditional wet processes, and the inapplicability of existing dry preparation processes for lithium battery electrodes to the lead-acid battery field. This provides a new approach for the high-performance and green manufacturing of lead-acid batteries.

This invention discloses a negative electrode paste for high-temperature lead-acid batteries used in armored vehicles and its preparation method, specifically relating to the field of electrochemical technology. The negative electrode paste for high-temperature lead-acid batteries used in armored vehicles is prepared from bismuth-tin alloy core-shell powder, graphite, sodium polyacrylate, chopped carbon fibers, styrene-butadiene rubber latex, polycarboxylate, lead powder, barium sulfate, acetylene black, short fibers, composite water-absorbing and water-suppressing agent, deionized water, dilute sulfuric acid, and a high-temperature composite expanding agent. This invention employs a double-layer structure design: the bottom layer of high-density lead paste ensures a strong bond between the active material and the grid; the surface layer of high-activity lead paste introduces a core-shell hydrogen-suppressing and conductive agent to inhibit high-temperature hydrogen evolution reaction, hydroxylated spherical graphite to construct a three-dimensional conductive network, and a high-temperature composite expanding agent to prevent the coarsening growth of lead grains, thereby synergistically solving the problems of high-temperature water loss and high-temperature passivation.

This invention relates to the field of lead-acid battery technology, and particularly to a method and system for estimating the lifespan of lead-acid batteries based on a multi-parameter data model. The method loads battery operation monitoring data, extracts characteristic frequency ranges, and obtains a list of key impedance frequency points. Based on this list, it performs charge-discharge characteristic correlation analysis to filter out a list of high-frequency correlated charge-discharge parameters. Combining physical parameters such as electrode materials and electrolyte characteristics with the aforementioned feature list, it collects first operating data tagged with cycle life to train a basic lifespan estimation model. For the target battery model, it collects corresponding second operating data and tags, performs transfer learning on the basic model, constructs a highly adaptable target lifespan estimation model, and executes the estimation task. This method integrates electrochemical impedance spectroscopy and dynamic operating condition characteristics to improve aging characterization capabilities. Through transfer learning, it enhances the model's generalization ability and is suitable for high-precision lifespan prediction of different battery models under small sample conditions.

The present application belongs to the technical field of lead-acid battery production and manufacturing, and particularly relates to a lead strip blank continuous casting machine, a rack, a lead water injection device fixedly arranged at the top end of the rack and used for conveying lead water melted by a lead melting furnace, a vibrator fixedly arranged on the rack, a crystallizer fixedly arranged on the vibrator and located below the outlet end of the lead water injection device, the crystallizer being used for crystallizing and solidifying the lead water into lead strip blanks, the vibrator being used for driving the crystallizer to vibrate so as to separate the lead strip blanks from the crystallizer, a cooling device arranged on the rack and used for providing circulating cooling water to the crystallizer so that the crystallizer crystallizes and solidifies the lead water into lead strip blanks, and a traction device arranged in the rack and located below the discharge port of the crystallizer, the traction device being used for pulling the lead strip blanks out of the crystallizer. The present application can improve the strength and corrosion resistance of the lead strip blanks and reduce the manufacturing cost of the continuous casting machine.

A kind of tool for European lead-acid battery vibration test, for the bearing platform of connection with vibration test equipment is equipped with transverse adjusting track group;Transverse adjusting track group is movably connected with longitudinal clamping mechanism, more than one pair of transverse clamping mechanism on it;Transverse adjusting track group includes two transverse adjusting tracks that are parallel to each other on the bearing platform;Longitudinal clamping mechanism includes more than one longitudinal adjusting track that is connected to the two transverse adjusting tracks and can slide along the transverse adjusting track, and a block assembly for pressing the fixed protruding edge of the short side bottom of the lead-acid battery to be tested is arranged on the longitudinal adjusting track;Each transverse clamping mechanism includes a block assembly for pressing the fixed protruding edge of the long side bottom of the lead-acid battery to be tested, and a movable clamp block slidably connected to the transverse adjusting track for moving the block assembly.The utility model is fixed and stable, easy to install and disassemble quickly, suitable for different sizes of European lead-acid batteries, effectively improves the test efficiency and accuracy.

The utility model relates to battery leakage monitoring and protection technical field, concretely relates to a current leakage monitoring and automatic circuit protection circuit system, include: a plurality of independent protection unit and a centralized management module. Each protection unit corresponds to a battery section, possesses local leakage detection and circuit breaking function. Each protection unit includes ripple injection module, phase detection module, circuit breaker executor and mechanical interlock mechanism, through the ripple injection module in the battery pack ground loop injects high frequency ripple, and phase detection module extracts the phase shift and converts into voltage signal and outputs the breaking instruction. Circuit breaker execution controls double coil magnetic latching relay action through H bridge chip, realizes the physical isolation of fault section. Mechanical interlock mechanism prevents the adjacent relay misoperation through the linkage rod, improves the system security. The centralized management module summarizes each independent protection unit fault section positioning. The system realizes the accurate positioning and quick power-off isolation of lead-acid battery pack leakage fault.

This utility model is entitled "Acid Adding Fixture for Lead-Acid Battery Formation." It belongs to the technical field. Its main purpose is to solve the problem that current methods of adding acid before formation result in delayed circulating water cooling and charging, which negatively impacts battery formation and post-formation performance. Its main features are: it consists of an acid injection head positioner, an acid injection head, a movable support and handle, and a fixed support; wherein, the fixed support is fixed above the formation tank; one end of the movable support and handle is rotatably connected to the fixed support, and the other end is rotatably connected to the acid injection head positioner; the acid injection head is mounted on the acid injection head positioner and matches the position of the acid injection hole of the lead-acid battery to be formed. This utility model has the advantages of reducing the immersion time after acid addition, controlling the electrolyte temperature, improving production efficiency, and enhancing battery performance. It is mainly used in the acid adding process of lead-acid batteries.

The application relates to the technical field of lead-acid battery box processing devices, and provides a five-hole punching mechanism for a lead-acid battery box, which comprises a mounting seat, four first punching pieces, four first positioning pieces, a first driving piece, a second punching piece, a second driving piece and a second positioning piece, the first positioning pieces and the second positioning pieces are used for positioning a partition plate, the four first punching pieces are mounted on the mounting seat, the first positioning pieces and the first punching pieces are correspondingly arranged oppositely, and the first driving piece drives the mounting seat to move towards the first positioning pieces; the second positioning piece and the second punching piece are arranged oppositely, the second driving piece drives the second punching piece to move towards the second positioning piece, and the moving direction of the second positioning piece is perpendicular to the moving direction of the first positioning piece. Based on the five-hole punching mechanism, the positions needing to be punched of the lead-acid battery box can be punched at one time, the punching efficiency is improved, and the accuracy of the punching positions is ensured.

When increasing capacity by reducing the bulk density of the positive electrode material, softening and shedding of the positive electrode material and overcharging are suppressed, resulting in a good cycle life. [Solution] The device comprises a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate contains a positive electrode material, and the negative electrode plate contains a negative electrode material. The negative electrode material contains a carbonaceous material and a fatty acid with 8 to 30 carbon atoms. The carbonaceous material content Cc in the negative electrode material is 0.25% by mass or more. When Y is the DBP oil absorption amount of the carbonaceous material and Cf (ppm) is the mass-based content of the fatty acid in the negative electrode material, the Cf / Y ratio is 0.1 ppm·mL. -1 The positive electrode material weighs 100g or more, contains antimony and resin fibers, has a bonding degree of 10% or more of resin fibers to the positive electrode material, and has a bulk density of 3.9g / cm³. 3 The following is a lead-acid battery.

The present application belongs to the technical field of waste lead acid battery resource and lead chloride crystal preparation, and discloses a method for preparing lead chloride crystal from waste lead paste by a short wet process, which specifically comprises the following steps: S1: stirring and reacting the waste lead paste in a carbonate solution to obtain desulfurized lead paste; S2: using an HCl-NaCl mixed solution as a leaching agent to leach the desulfurized lead paste to obtain a leaching solution; and S3: recrystallizing to obtain lead chloride crystals. The present application improves the overall process design of the preparation method, first uses a carbonate solution to desulfurize the waste lead paste, then uses an HCl-NaCl mixed solution as a leaching agent to leach the desulfurized lead paste, and finally recrystallizes to obtain high-purity lead chloride crystals, effectively solving the technical problems of long process steps, large reagent input, and low conversion rate of lead chloride in the prior art.

The utility model provides a kind of battery exhaust cover filter piece breathable pressure difference detection device, belong to lead-acid battery technical field, including workbench and pressure difference detection component.The upper end surface of workbench is equipped with operation base plate, and positioning structure for placing and positioning the product to be detected is arranged on operation base plate;Pressure difference detection component includes the air flange symmetrically arranged in the both sides of positioning structure, and the air flange is close to the side of positioning structure and is equipped with airtight tube, and the end of airtight tube is equipped with the airtight head compatible with the air hole of product to be detected, and the side of air flange away from positioning structure is connected with linear drive, and linear drive is fixed on the upper end surface of operation base plate, for driving air flange to be close to or away from product to be detected.The utility model provides a kind of battery exhaust cover filter piece breathable pressure difference detection device, can solve the problem of low efficiency, big error of artificial detection, and the problem of insufficient positioning accuracy of detection equipment to product.

The application discloses a medium-large dense lead-acid battery mesh belt disc conveying device and relates to the field of lead-acid battery production line logistics conveying equipment. The device comprises an AGV forklift body, an adjusting mechanism, a front blocking mechanism and a control unit. The AGV forklift body comprises a vehicle body, a portal arranged on one side of the vehicle body and a front fork slidingly connected to the portal. The front fork comprises two fork teeth arranged side by side. The control unit is electrically connected to the adjusting mechanism and the front blocking mechanism respectively. The adjusting mechanism drives the two fork teeth to slide in opposite directions, so that the outer side surfaces of the fork teeth abut against the inner side surfaces of the bottom supporting legs of the mesh belt disc rack to form transverse clamping and fixing. The front blocking mechanism drives the blocking plate to open, so that the inner side surface of the blocking plate abuts against the front side surface of the supporting leg to form longitudinal limiting. The device effectively prevents the rack from slipping off when starting, turning, going uphill or going downhill. The device realizes safe, reliable and automatic carrying of the medium-large dense lead-acid battery mesh belt disc, eliminates the health risks of manual carrying and is suitable for medium-large dense lead-acid battery production line logistics conveying.

The present invention relates to the technical field of lead-acid batteries, and provides a positive grid and a preparation method therefor, a positive electrode plate and a lead-acid battery. The positive grid is prepared from the following components: Ca; Al; Sn; Re; Mg; and lead: the balance. The preparation method for a positive grid comprises: S1, lead melting; S2, a first instance of slagging; S3, a second instance of slagging; S4, the addition of metal components; S5, cooling; and S6, sampling and testing. Also provided are a positive electrode plate and a lead-acid battery.