9 results about "Grid alloy" patented technology

The preparation method comprises the following steps: firstly, melting a lead ingot in a crucible furnace at 400 DEG C, then adding Ca and Al into the crucible furnace, regulating the flow rate by using an argon steel cylinder through a pressure reducing valve, continuously introducing argon into the crucible furnace through a pipeline, and maintaining an inert atmosphere in the crucible furnace; under argon protection, the temperature in a crucible furnace is increased to 480-500 DEG C, Sn and Ba are added to obtain molten metal, a 20-40 kHz ultrasonic probe is inserted into the molten metal, corrosion of high temperature to the storage battery grid is effectively delayed through the Ba and Yb composite microalloying technology, the defects that the grid is high in corrosion rate and growth speed in the high-temperature environment are successfully overcome, and the storage battery grid with the high-temperature corrosion rate is obtained. The service life of the battery under the high-temperature condition is remarkably prolonged, the high-temperature cycling stability of the battery is improved while the use amount of precious metal tin is reduced, and the problems of high cost, complex process and performance defects of a traditional high-temperature lead-acid storage battery are solved.

The invention relates to the technical field of lead-carbon battery manufacturing, in particular to a high-specific-energy lead-carbon battery manufacturing method which comprises the following steps: S1, screening and pretreating a carbon material; s2, preparing lead carbon negative electrode paste; s3, preparing and casting a grid alloy; s4, plate coating and curing; s5, assembling a plate group; s6, packaging and welding a battery shell; s7, electrolyte filling and container formation are carried out; and S8, performing performance detection and aging. According to the scheme, when the lead-carbon negative electrode paste is prepared, firstly, strict pickling purification and high-strength ultrasonic dispersion treatment are carried out on a carbon material with a high specific surface area, so that impurities on the surface of carbon are thoroughly removed, a uniform and stable dispersion liquid is formed in water, and a solid foundation is laid for full combination of the carbon material and lead powder; then, a step-by-step gradient mixing strategy is adopted, the carbon dispersion liquid, dry powder and sulfuric acid are mixed in stages under the condition of multiple rotating speeds, precise temperature control is supplemented, it is ensured that active substances, carbon additives and fibers are evenly distributed, and agglomeration is effectively prevented.

The invention relates to the technical field of grid alloys, in particular to a preparation method of a lead-carbon battery negative grid alloy, and the preparation method of the lead-carbon battery negative grid alloy comprises the following steps: S1, preparing raw materials; s2, ball-milling, mixing and processing; s3, powder metallurgy forming; s4, heat treatment; s5, surface treatment; and S6, machining is conducted. According to the scheme, high-purity lead powder, a finely-treated carbon material and alloy elements are adopted as basic raw materials, multi-step pretreatment and accurate matching and mixing are combined, the component uniformity and the structure consistency of the negative grid alloy are remarkably improved, and in the ball-milling mixing stage, a three-dimensional motion mixing machine runs at a low speed for a long time, so that the negative grid alloy is obtained. The method has the advantages that material layering and segregation are effectively avoided, high dispersity of the carbon material in a lead matrix is guaranteed, in addition, easy-to-oxidize alloy elements are passivated, surface oxidation in the machining process is prevented, and the activity of the alloy elements and the chemical stability of the final alloy are guaranteed.

This invention discloses a test method for the resistance of lead-grid alloy in the positive electrode plate of a storage battery to hydration short circuits, specifically implemented according to the following steps: Step 1, preparing an electrolyte for electrochemical scanning; Step 2, fabricating a working electrode; Step 3, using a three-electrode system on an electrochemical workstation, performing linear sweep voltammetry (LSV) on the working electrode to determine the peak potential and current density of the oxidation peak appearing in the potential range of -0.4V to 0.4V. This invention aims to solve the problem of hydration short circuits in storage batteries existing in the prior art.

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%.

This invention discloses an energy storage battery and its manufacturing process, belonging to the field of solar energy storage battery technology. It includes: a main structure; the main structure includes a battery casing, the top of which is encapsulated with a cover plate, battery terminals installed on both sides inside the cover plate, and a positive electrode plate and a negative electrode plate respectively disposed within the inner cavity of the battery casing, with the positive and negative electrode plates alternately arranged. This invention redesigns the shape of the positive and negative electrode plates, using a three-dimensional wave structure to increase the contact area between the positive and negative electrode plates and the electrolyte, thereby improving the oxidation-reduction reaction rate. Subsequently, the grid alloy composition and positive electrode lead paste formulation are optimized, utilizing a lead-calcium-tin-aluminum system to suppress grid corrosion, improve conductivity, refine grains, reduce microcracks, enhance the alloy's creep resistance, and improve the battery's capacity recovery rate and cycle life after deep discharge, thus optimizing the battery's performance.

The invention discloses an energy storage battery and a production process thereof, and belongs to the technical field of solar energy storage batteries. The main body structure comprises a battery shell, a cover plate is packaged at the top of the battery shell, battery terminals are mounted on two sides in the cover plate, positive plates and negative plates are respectively arranged in an inner cavity of the battery shell, and the positive plates and the negative plates are alternately arranged. Through a three-dimensional wave structure, the contact area between a positive plate and an electrolyte and the contact area between a negative plate and the electrolyte are increased, the oxidation-reduction reaction rate is increased, then grid alloy components and a positive electrode lead paste formula are optimized, a lead-calcium-tin-aluminum system is utilized, grid corrosion is inhibited, a conductive wire is improved, meanwhile, grains are refined, microcracks are reduced, and the service life of the battery is prolonged. The creep resistance of the alloy is enhanced, the capacity recovery rate and the cycle life of the battery after deep discharge are improved, and the performance of the battery is optimized.

The invention provides a lead-acid storage battery continuous punching grid alloy, and relates to the field of grid processing. The continuous punching grid alloy of the lead-acid storage battery comprises a grid base material formed by a lead-based alloy material added with an additive of which the total mass is one percent of that of which the malleability is improved, blanking, punching, cutting off and extending redundant materials of the grid base material, fixing one end of the blanked grid base material, extending the grid base material towards one side far away from the fixed end, and forming the continuous punching grid alloy of the lead-acid storage battery. And the interval of the grating part is increased. According to the continuous punching grid alloy for the lead-acid storage battery, the grid base material is firstly processed into a rough shape, and then the grid part is extruded in an extrusion extension mode, so that under the condition that the grid base material is thinned by extrusion, a frame with a relatively wide thickness is still kept on the edge of the whole shape, and the whole strength can be kept; compared with a processing mode of a net pulling type plate grid base material, the strength of the device can be ensured while the pore area is increased.

The invention relates to the technical field of lead-acid batteries, in particular to a high-temperature-working-condition-resistant long-life type lead-acid battery grid alloy which comprises the following components in percentage by weight: 0.04 to 0.08 percent of calcium, 1.0 to 1.8 percent of tin, 0.015 to 0.025 percent of tungsten, 0.004 to 0.01 percent of cerium, 0.002 to 0.005 percent of lanthanum, 0.002 to 0.008 percent of multi-walled carbon nanotubes, 0.002 to 005 percent of copper, 0.001 to 0.003 percent of antimony, 0.001 to 0.002 percent of arsenic and the balance of lead. According to the invention, through an alloy formula of tungsten, cerium / lanthanum rare earth elements and gradient distribution tin, carboxylation modification and directional solidification are carried out on the surface of a multi-walled carbon nanotube material, and the key problem of the high-temperature lead-acid battery grid is solved synergistically under the processing technologies of double-roller continuous casting and two-stage rolling; and the high temperature resistance, the service life and the conductivity of the lead-acid battery grid alloy are improved.