116 results about "Lead sulfate" patented technology

The invention discloses positive lead paste for a lead storage battery and a preparation method of the positive lead paste. The formula of the positive lead paste comprises lead powder, dilute sulphuric acid, water and an additive, and the additive comprises the following components in parts by mass: 2-6 parts of manganese dioxide / three-dimensional carbon-based composite electrode material, 1-2 parts of antimony trioxide, 1-2 parts of stannous mono-sulphate, 20-50 parts of red lead and 0.8-1.2 parts of polyester fiber. The manganese dioxide / three-dimensional carbon-based composite electrode material is adopted to replace conductive graphite and other conductive carbon materials, the conductivity is good, a stable three-dimensional structure is achieved, the active substance structure can be fixed during discharging, the positive active substance is effectively prevented from being softened, and the service life of the battery is prolonged; manganese dioxide has an oxidation catalysis function and can catalyze the efficiency of converting lead sulfate into lead dioxide, so that the charging capacity of the positive plate is greatly improved during charging, and side reactions are reduced; the composite electrode material has high specific capacitance, and the discharge capacity of a positive plate is improved during discharge.

The invention discloses a sheath material for a saline-alkaline-resistant dragging cable, a preparation method of the sheath material, the cable and the sheath material. The sheath material is prepared from the following raw materials in parts by weight: 40 to 45 parts of chlorinated polyethylene, 1.5 to 2.0 parts of dicumyl peroxide vulcanizing agent, 2 to 2.5 parts of triisocyanate vulcanizing agent, 0.1 to 0.3 part of ethylene thiourea accelerant, 0.05 to 0.15 part of anti-aging agent RD, 4 to 5 parts of metal oxide, 1 to 1.5 parts of paraffin, 8 to 10 parts of calcium carbonate, 15 to 21 parts of reinforcing agent, 1 to 1.5 parts of lead stearate, 0.5 to 1 part of lead sulfate tribasic, 1 to 1.5 parts of ultraviolet light absorber, 3 to 5 parts of epoxidized soybean oil and 8 to 8 parts of chlorinated paraffin. 9 parts of antimony trioxide and 3-4 parts of antimony trioxide. The cable has the advantages of ultraviolet resistance, no salt deposition, water resistance, tensile resistance, cold resistance and the like, can be used for a long time in a special operating environment, has the service life of at least more than 3 years, and avoids frequent replacement of the cable by a user.

According to the inorganic passivation layer modified perovskite solar cell and the preparation method thereof, the compact lead sulfate-lead oxide inorganic layer is further formed through surplus lead iodide on the surface of calcium perovskite with strong oxidizing property to passivate the perovskite thin film, and the efficient and stable perovskite cell is prepared. According to the invention, the perovskite thin film is processed by using the passivator solution, and the photoelectric conversion efficiency of the prepared device can reach 24.98% at most. Meanwhile, the perovskite thin film treated by the passivator has excellent photo-thermal stability. According to the perovskite device prepared by the method, the passivation effect is remarkable, the waterproof performance of the perovskite material is remarkably improved, and the method has important significance in performance improvement and commercialized production of perovskite.

The invention discloses a lead-sodium storage battery positive electrode lead paste in the technical field of storage batteries. The lead-sodium storage battery positive electrode lead paste comprises the following components in parts by weight: 100 parts of lead oxide powder, 6-10 parts of sulfuric acid, 14-24 parts of deionized water, 0.05-0.07 part of short fibers, 2-8 parts of lead dioxide, 1-2 parts of tetrabasic lead sulfate, 0.5-1.5 parts of calcium sulfate, 0.05-0.15 part of stannous sulfate, 0.05-0.15 part of antimony trioxide, 0.5-1 part of carbon black, 0.1-0.2 part of carboxymethyl cellulose sodium and 0.1-0.5 part of a mixed carbon material. By improving the design of the process, the formation efficiency and low-temperature performance of the storage battery can be effectively improved, and the service life of the storage battery can be effectively prolonged.

The invention discloses a preparation method and application of an all-vanadium liquid flow battery electrolyte, belonging to the technical field of all-vanadium liquid flow batteries. The preparation method of the all-vanadium liquid flow battery electrolyte comprises the following steps: adding concentrated sulfuric acid to a mixture of solid V2O5 powder and metal lead to form a uniformly dispersed solid solution, stirring the reaction, filtering the clear liquid as a negative electrode electrolyte for electrolysis, and obtaining a vanadium ion sulfuric acid solution at the negative electrode of the electrolytic cell; wherein, metal lead is used as a chemical reducing agent, and its oxidation product is lead sulfate that is insoluble in the solution, thereby reducing the risk of impurities mixing in the electrolyte synthesis process. The invention avoids the problems caused by the residual traditional reducing agent, and realizes a method for preparing an electrolyte that is simple and convenient to operate and has low cost.

A lead acid battery separator includes a porous membrane wherein within the porous membrane, a conductive element and / or a conductive or semiconductive nucleation additive is contained. According to the present invention, inside the battery separator, numerous nucleation sites are provided to provide starting points for crystal formation at numerous locations, thereby dispersing the total amount of lead sulfate into a large number of smaller crystals, rather than a small number of larger crystals; thus, these smaller crystals are more readily returned to the electrolyte during the charge cycle of the lead acid battery, thereby hindering the slowed growth of dendrites within the separator of the lead acid battery, increasing the charge acceptance of the battery, and / or improving the cycle performance of the battery.

[Problem] An object is to provide a lead sulfate coating removal device that has low power consumption and does not damage an electrode of a lead-acid battery.[Solution]A lead sulfate coating removal device implemented by an application specific integrated circuit (ASIC) that removes a lead sulfate coating generated on an electrode of a lead-acid battery includes: a generation unit that generates, on the basis of a signal extracted from the lead-acid battery, a removal signal of the lead sulfate coating having a peak value of 550 mA to 1000 mA, a pulse width of 5 nsec to 100 nsec, and a frequency of 5 kHz to 50 kHz; and a supply unit that supplies the removal signal generated by the generation unit to the electrode of the lead-acid battery.

The present invention provides a lead-acid battery repair fluid, and its preparation and use methods. The repair fluid comprises the following raw materials: MXene, ammonium acetate, ammonium bicarbonate, sodium ethylenediaminetetraacetate (EDTA), montmorillonite, polymaleic anhydride, sodium polystyrene sulfonate, chloroethyl polyvinylpyridinium salt, polyvinylpyrrolidone (PVP), sodium alginate, and deionized water. The repair fluid can effectively dissolve lead sulfate crystals and form a durable and stable protective film on the electrode plates, thereby regenerating the lead-acid battery while effectively preventing further lead sulfate crystals from adhering to the electrode plates, thereby increasing the battery's service life. Furthermore, the raw materials used in the present invention are safe and harmless to the human body, and the preparation method is simple, efficient, and environmentally friendly.

The invention discloses a mining lead-acid storage battery lead sulfate crystal substance removing device which comprises a conveying belt moving structure, a pretreatment structure, a crystal removing structure, a detection structure and a discharging assembly are fixed to the conveying belt moving structure, the crystal removing structure is arranged on the right side of the pretreatment structure, and the detection structure is arranged on the right side of the crystal removing structure. The conveying belt moving structure comprises a bottom box, a position adjusting assembly is fixed to the bottom box and comprises a first storage box, a first motor box is fixed to the first storage box, a motor in the first motor box drives a gear to rotate, and the gear rotates to drive a first supporting plate on a rack to move. The removing device for the lead sulfate crystal substances of the mining lead-acid storage battery has the advantages that the lead-acid storage battery is rotated and cleaned in an auxiliary manner, the lead-acid storage battery is limited and fixed, the lead sulfate crystal substances are removed, the lead-acid storage battery is automatically monitored, and the unqualified lead-acid storage battery is removed.

The invention belongs to the technical field of metal resource recovery and reutilization, and particularly relates to a selective recovery method for valuable metal in a retired crystalline silicon cell photovoltaic welding strip. The method comprises the following steps: disassembling a photovoltaic solder strip from a retired crystalline silicon cell, and removing impurities from the photovoltaic solder strip to obtain a clean solder strip; adding the clean welding strip into an acetic acid solution, heating and stirring to fully react, and filtering to respectively obtain filter residues, copper strips and lead-containing filtrate; adding a precipitant into the lead-containing filtrate to carry out precipitation reaction, and after the reaction is finished, carrying out solid-liquid separation, washing and drying to obtain a lead sulfate product; washing and drying filter residues to obtain a tin dioxide crude product; and washing the copper bar with absolute ethyl alcohol, and drying to obtain the metal copper bar with the purity not lower than 99.0%. The method has the advantages of high metal separation efficiency, high recovery rate, low energy consumption, low acid and alkali consumption, difficulty in causing secondary environmental pollution and the like, and provides a feasible solution for selective separation and recovery of valuable metals of retired photovoltaic modules.

The invention discloses a paste additive of a lead-acid storage battery plate, the paste additive comprises graphene and nano silicon powder, the addition amount of the graphene is 0.12-0.22% of the weight of positive electrode lead paste lead powder, and the addition amount of the graphene is 0.1-0.2% of the weight of negative electrode lead paste lead powder. The graphene and the nanometer silicon powder are used as the lead-acid battery pole plate paste additive to be added into a pole plate to manufacture a double-nanometer pole plate to produce a lead-acid storage battery, so that the CCA (conductivity) of the battery is improved, the self-discharge rate of the battery is reduced, the cycle conversion of lead sulfate in battery loading is almost completely reversible, the charge and discharge receiving capability is greatly improved, and the cycle life is greatly prolonged; and the requirement of contemporary consumers on the long service life of the battery is further met.

The present invention provides an oxidation-resistant externalized negative plate treatment method, wherein the negative plate after externalization is discharged and charged by a step-by-step current, so that a lead sulfate protective layer is generated on the surface of the negative plate without affecting the negative electrode capacity, and the oxidation of the negative plate during the drying process is prevented by combined immersion in a xylitol solution. The dry-load storage performance of the negative plate is also improved accordingly. The treatment method of the present invention is used to repeatedly discharge the negative plate with a large current shallowly, and the lead oxide content of the negative plate decreases after drying, and the dry-load capacity of the negative electrode is increased. The charging amount of the battery after acid addition can also be reduced.

The invention discloses automatic cleaning equipment for an acid filling kettle of a storage battery, and aims to provide automatic cleaning equipment which can realize automatic cleaning of the acid filling kettle of the storage battery and is high in cleaning efficiency and low in labor cost; and sediments such as lead sulfate on the inner wall of the acid filling kettle of the storage battery can be effectively removed, so that the cleaning quality and effect are ensured. The device comprises an ultrasonic heating and soaking primary cleaning pool which is internally provided with a heater for heating water in the ultrasonic heating and soaking primary cleaning pool; an ultrasonic secondary cleaning pool; the suspension type conveying line comprises a plurality of hanging pieces running along a preset track, and removable acid injection pot placing frames are hung on the hanging pieces; and in the process that the acid injection pot placing frame and the hanging pieces run along the preset track, the acid injection pot placing frame sequentially passes through the ultrasonic heating and soaking primary cleaning pool and the ultrasonic secondary cleaning pool.

The invention discloses a lead-lithium battery negative electrode material composite formula and a processing technology, and belongs to the technical field of lead-lithium batteries, the lead-lithium battery negative electrode material composite formula comprises the following components by weight: 80-90 parts of a high-entropy lead powder composite material, 2-5 parts of a novel composite expanding agent, 1-3 parts of a conductive reinforcing agent, 5-8 parts of a lithium sulfate-MOF electrolyte with a concentration of 0.5-1.5 mol / L, and 3-6 parts of a binder, the negative electrode material has the advantages of being capable of effectively dispersing the additive and avoiding overgrowth of lead sulfate crystals, and the problems that an existing negative electrode material composite formula of the lead-lithium battery cannot avoid overgrowth of the lead sulfate crystals and an existing processing technology cannot ensure uniform dispersion of the additive, and then the discharge performance and the overall service life of the lead-lithium battery are affected are solved.

The invention discloses a high-temperature-resistant maintenance-free lead-acid storage battery for starting. The lead-acid storage battery comprises a positive plate, a negative plate, a partition plate, electrolyte and a storage battery tank, the positive plate comprises a positive grid filled with positive lead plaster; the negative plate comprises a negative plate grid filled with negative lead plaster; the negative electrode lead paste is prepared by curing lead powder, a condensation polymer of beta-naphthol sulfonic acid and formaldehyde, lignin, barium sulfate, acetylene black, short fibers, a sulfuric acid aqueous solution and deionized water according to a ratio. The condensation polymer of beta-naphthol sulfonic acid and formaldehyde added in the negative electrode lead paste has low solubility in an electrolyte and strong oxidation resistance, reduces the volume of lead sulfate crystals generated by discharge, increases the porosity of a negative electrode active substance, inhibits the formation of large-particle metal lead in the charging process, delays the shrinkage of the negative electrode active substance, and improves the charging efficiency. Meanwhile, the hydrogen evolution overpotential is improved, and the water loss of the storage battery is inhibited.

To provide a lead sulphate coating removal device which is low in power consumption and which gives no damage to an electrode of a lead storage battery.SOLUTION: A lead sulfate coating removal device which removes a lead sulfate coating generated on an electrode of the lead storage battery and which comprises: a generation unit which generates, on the basis of a signal extracted from the lead storage battery, a removal signal for the lead sulfate coating having a peak value of 550-750 mA, a pulse width of 5-100 nsec, and a frequency of 5-50 kHz; and a supply unit which supplies the removal signal generated by the generation unit to the electrode of the lead storage battery.SELECTED DRAWING: Figure 1

The invention relates to a high-capacity positive lead paste for a lead-acid battery and a preparation method of the high-capacity positive lead paste, and belongs to the technical field of lead-acid batteries, the high-capacity positive lead paste comprises the following raw materials in parts by weight: 100 parts of lead powder, 5.5-7.2 parts of a high-capacity additive, 3.5-4.5 parts of red lead, 0.15-0.2 part of stannous mono-sulphate and 10-13 parts of sulfuric acid; wherein the high-capacity additive takes a carbon nano tube as a matrix, a large number of active groups are generated on the surface through nitric acid treatment, the adsorbability of the carbon nano tube is improved, the carbon nano tube is activated, tri (N, N '-diisopropylformamido) lanthanum is adsorbed and loaded in a liquid-phase environment by utilizing the adsorption characteristic of the carbon nano tube, lanthanum doping is formed on an activated carrier after roasting, and the high-capacity additive is prepared. Through hydrothermal and roasting processes, lead oxide and lead sulfate form tetrabasic lead sulfate composition on the surface of the doped carrier, and a stable ion channel is formed in the positive electrode active material, so that the battery has relatively high specific capacity and cycling stability.

To provide a technology for regenerating a lead-acid battery while being still in operation.SOLUTION: Electromagnetic waves having a frequency set to provide energy that dissociates lead sulfate molecules into lead cations and sulfate anions are emitted from outside the lead-acid battery so as to reach the electrodes of the lead-acid battery.SELECTED DRAWING: Figure 1

The invention discloses a method for detecting lead plaster components of a waste lead-acid storage battery. The invention relates to the technical field of waste storage battery resourceful treatment and detection, the method comprises preparation and calibration of an EDTA standard solution, and continuous determination of the content of lead oxide, lead sulfate, metal lead and lead dioxide in lead plaster, through use of formic acid, ammonium carbonate and other reagents and combination of an ultrasonic-assisted extraction technology, the dissolution efficiency is significantly improved, and the content of lead oxide, lead sulfate, metal lead and lead dioxide in the lead plaster is determined. The reaction time is greatly shortened; the selective dissolution of the metal lead is realized by accurately controlling the low-temperature condition and the reaction time, and the interference of lead dioxide is effectively avoided; according to the method, by optimizing a reagent system and introducing ultrasonic-assisted extraction, the dosage of strong acid and the emission of toxic wastes are greatly reduced, the method is more environment-friendly while the result accuracy is ensured, and the method is clear in operation flow, good in reproducibility and suitable for rapid and reliable determination of the components of the lead paste in an industrial recovery scene.

The invention discloses a preparation method of tetrabasic lead sulfate for a lead storage battery, and relates to the field of lead storage batteries. The preparation method comprises the following steps: carrying out wet grinding on completely dried lead oxide and a sulfur source under lubrication of an organic solvent, carrying out thermal stirring with more organic solvents to trim a crystal form, standing, cooling, filtering, washing and drying to obtain the tetrabasic lead sulfate for the lead storage battery. In some embodiments, ethylene glycol or a compound of ethylene glycol and polyethylene glycol is adopted as a solvent, compared with dry grinding, the efficiency and uniformity are greatly improved, the problems that byproducts are easily generated and crystal grains are easily coarse in water grinding are avoided, meanwhile, rapid crystal form finishing can be carried out at a higher temperature, and the product quality is improved. And rod-like tetrabasic lead sulfate with small particle size is obtained while the overall production energy consumption is reduced.

The invention relates to a polar plate, a preparation method of a three-dimensional conductive grid layer structure, a battery and an energy storage device. The pole plate comprises a substrate and an active substance layer covering the substrate, the active substance layer is constructed to be of a three-dimensional conductive grid layer structure, and the three-dimensional conductive grid layer structure forms the outer side face of the active substance layer. The framework is provided with a three-dimensional conductive grid, and the three-dimensional conductive grid is filled with the active substance. According to the polar plate, a compact lead sulfate barrier layer can be prevented from being generated on the surface, the overall structural strength is high, and the problems of capacity reduction and early failure caused by cracking and falling of active substances of the battery can be avoided.

The invention provides a negative electrode lead paste additive, a negative electrode lead paste and a preparation method and application of the negative electrode lead paste. The negative electrode lead paste additive comprises barium sulfate and treated lead sulfate, and the treated lead sulfate is prepared by the following steps: (1) thoroughly discharging a waste battery to convert a negative electrode active substance into lead sulfate; (2) taking out the negative plate, and washing off the sulfuric acid electrolyte attached to the negative plate; and (3) separating active substances in the cleaned negative plate, drying, crushing, grinding and screening to obtain the treated lead sulfate. The treated lead sulfate added in the invention directly becomes a negative electrode chemical reaction product lead sulfate nucleation center when the negative electrode discharges, and the performance of the treated lead sulfate is superior to that of pure barium sulfate as the negative electrode nucleation center. The prepared treated lead sulfate enables the battery to be difficult to be reduced into spongy lead during charging, and the effectiveness of double nucleation centers (lead sulfate and barium sulfate) is kept.

The invention discloses a waste lead-acid storage battery dilute acid resourceful treatment process based on nanofiltration-electrodialysis synergetic waste heat evaporation, and belongs to the field of hazardous waste treatment. According to the process, impurities are removed through three-stage precision filtration (50 microns, 10 microns and 1 micron) and ultrafiltration (PVDF membrane) for the waste acid with the sulfuric acid concentration of 1.4%-2.3%, lead and cadmium ions are separated through an acid-resistant nanofiltration membrane (the molecular weight cutoff is 200-500 Da) (the rejection rate is larger than or equal to 95%), and low-heavy-metal acid liquor is obtained; and concentrating to 5-8% by electrodialysis, and purifying until the content of sulfuric acid is greater than or equal to 15% and the content of lead residue is less than or equal to 3.0 mg / L in combination with single-effect waste heat evaporation (60-80 DEG C), and directly recycling for electrolyte compounding. After the nanofiltration concentrated water and the electrodialysis waste liquid are neutralized and precipitated, the lead content of the sludge is greater than or equal to 5% (HW31 hazardous waste), and the lead curing rate is greater than or equal to 99.5%. Through a membrane separation and waste heat utilization synergistic technology, the recovery rate of sulfuric acid is greater than or equal to 85%, the sludge is reduced by 90%, the energy consumption is reduced by 50%, the problems of low recovery rate, high energy consumption and secondary pollution in low-concentration waste acid resourceful treatment are solved, and high efficiency and environmental friendliness are achieved.

The invention discloses a method for detecting the carbon content in a battery negative plate. The method comprises the following steps: S1, preparing raw materials: preparing a negative plate sample, a nitric acid solution and ammonium acetate; s2, removing lead from the raw material: putting the negative plate sample into an excessive nitric acid solution, and heating the mixture to dissolve lead in the negative plate sample; s3, removing lead sulfate from the raw materials. Lead in the negative plate sample can be effectively dissolved by reacting the negative plate sample with nitric acid, and lead sulfate generated by contact of the negative plate and sulfuric acid can be dissolved by adding ammonium acetate, so that the lead sulfate is prevented from being mixed in carbon to influence a detection result, and the detection accuracy is improved; the reaction solution is heated and stirred, so that the reaction can be fully carried out, residues of lead and lead sulfate are prevented, the filter paper and the carbon are dried, water residues on the surfaces or in the filter paper and the carbon can be prevented, and the detection accuracy is further improved.

The invention belongs to the technical field of preparation of lead-acid storage batteries, and particularly discloses a lead-acid storage battery which comprises a positive plate and a negative plate, the positive plate comprises a positive plate grid and positive lead paste, and the negative plate comprises a negative plate grid and negative lead paste; a formula of the positive lead paste comprises the following components in parts by weight: 90-150 parts of lead powder, 1-10 parts of red lead, 5-15 parts of lead sulfate, 1-3 parts of graphene, 0.5-0.3 part of short fibers, 8-20 parts of a sulfuric acid solution and 10-15 parts of water; a formula of the negative electrode lead paste comprises the following components in parts by weight: 90-150 parts of lead powder, 0.5-1 part of carbon nanotubes, 1-3 parts of barium sulfate, 1-3 parts of lignin, 8-15 parts of a sulfuric acid solution, 10-15 parts of water and 1-3 parts of titanium nitride. The invention also discloses a preparation method of the positive plate and a preparation method of the negative plate. According to the invention, early capacity attenuation of the storage battery can be prevented, and the overall service life of the storage battery is prolonged.

The application relates to the technical field of lead-acid storage batteries, and discloses a preparation method of a graphene lead sulfate composite material; the method comprises the following steps: mixing and stirring graphite, concentrated sulfuric acid and sodium nitrate at low temperature, adding potassium permanganate in the stirring process to obtain a low-temperature reaction product; increasing the low-temperature reaction product to medium temperature and reacting for a period of time to obtain a medium-temperature reaction product; adding distilled water and hydrogen peroxide to the medium-temperature reaction product after temperature reduction, washing the reaction product with a hydrochloric acid solution and distilled water after the reaction is completed, drying the reaction product to obtain solid material; mixing the solid material with lead sulfate trihydrate, performing ultrasonic treatment, and then performing immersion; performing extraction and filtration on the precipitated product after the immersion, and performing drying to obtain the graphene lead sulfate composite material. The graphene lead sulfate composite material is prepared by oxidizing and compounding the graphite, so that the conductivity of the material is improved; the graphene lead sulfate composite material can be subjected to graphite interlayer peeling during the manufacturing process, the specific surface area is increased, the conductivity of the battery is improved, and the conduction process is accelerated.

The present invention relates to a high-capacity EFB start-stop battery positive lead paste and a preparation method thereof, belonging to the technical field of storage batteries. The positive lead paste comprises, by weight, 100 parts of lead powder, 2.5-3.2 parts of red lead, 4.6-5.5 parts of a capacity-increasing stabilizer, 0.2-0.3 parts of nano-carbon fiber, 0.08-0.1 parts of β-naphthol and 12-15 parts of sulfuric acid; the capacity-increasing stabilizer is compounded in the positive lead paste to promote the formation of active tetrabasic lead sulfate on the surface of the capacity-increasing stabilizer, which promotes the improvement of the electrochemical performance of the battery, and the graphene clusters attached thereto provide a large number of ion channels, which are conducive to the deintercalation of ions during the charge and discharge process, and improve the capacity of the battery, and the cluster structure has good toughness, and has a buffering effect on the positive electrode solidified layer during the start-stop high-frequency charge and discharge process, reducing the shedding of the positive electrode coating, so that the battery maintains excellent cycle stability.

The present invention belongs to the technical field of lead-acid batteries, and specifically relates to a method for determining the content of basic lead carbonate, tribasic lead sulfate, and tetrabasic lead sulfate in lead paste for positive electrodes of lead-acid batteries. The present invention solves the problem in the prior art that conventional heating methods cannot accurately determine whether moisture has been completely removed, resulting in incomplete moisture removal during heating or the weighed object reabsorbing some moisture from the air during the weighing process, leading to distorted measurement results. The present invention effectively differentiates and measures the contents of 3PbO·PbSO4·H2O and 2PbCO3·Pb(OH)2 by changing the weight of the lead paste at corresponding temperatures. The method can further determine the content of 4PbO·PbSO4 in combination with the test method for "GB T 23636-2017 Lead-acid Battery Plates," thereby obtaining the accurate contents of 3PbO·PbSO4·H2O, 4PbO·PbSO4, and 2PbCO3·Pb(OH)2.

A new type of energy storage battery employs a structure with opposite terminals and a busbar. This design fully addresses the issues of acid stratification and uneven utilization of active materials between the upper and lower sections caused by excessively high plate height, leading to reduced battery life. This results in a more uniform current distribution and significantly improved charge acceptance and deep cycle life. The positive plate grid alloy undergoes pretreatment with pure lead combined with electroplating, avoiding the difficulties in forming a pure lead corrosion layer and insufficient adhesion to lead paste, thus improving battery conductivity and deep cycle life. Pore-forming agents and conductive agents are introduced into the positive electrode formulation to balance capacity and lifespan. The negative electrode formulation uses dendritic lead sulfate, significantly increasing the pore size and total pore volume after formation. During charging and discharging, this enhances ion transport channels, improves the utilization rate of negative active materials and fast charging capability, and delays battery sulfation. Simultaneously, the high-carbon formulation improves charge acceptance, and the dendritic lead sulfate prevents overcharging during negative electrode formation. Compared to traditional lead-acid energy storage batteries, this design extends battery life by at least 50%.

The application relates to the technical field of battery repair, and discloses a method and system for expanding the plates of a fiber lead-acid gel battery and a storage medium, the method comprising: placing the battery in a conductive liquid in a liquid storage tank body, so that the battery top cover is immersed in the liquid; during repair, a first alternating current is applied to the two plates of the battery by a high-voltage generator; the repair process comprises high-temperature and vibration processes; when the high-temperature process is performed alone, the first current is adjusted in negative correlation with the real-time temperature; when the vibration process is performed alone, the first frequency is adjusted in negative correlation with the real-time vibration value; when the two processes are performed simultaneously, the first frequency adjustment step is controlled in positive correlation with the temperature rise speed, and the first current adjustment step is controlled in negative correlation with the vibration value change speed. The method can uniformly distribute the current, avoid secondary damage to the battery, efficiently remove lead sulfate crystals and repair the structure of active substances, restore the effective reaction area of the plates, narrow the gap between the actual capacity and the nominal capacity of the battery, and improve the performance stability and service life.