38results about How to "Improves deep cycle performance" patented technology

The invention relates to a lead-acid battery repair system which is designed against the difficult problem of irreversible vulcanization of a lead-acid battery and formed by combining a battery balancer and a devulcanized charger; and a developed repair agent is used for repair. Or a repair instrument is matched with the repair agent for direct repair. The repair technology can repair and use a waste vulcanized battery. The invention realizes the purpose of rapid elimination of the vulcanization by the self-repair and the principle of combing the physics and the chemistry to eliminate the vulcanization. The invention can prolong the service life of various lead-acid batteries to more than two times, lengthen the driving distance of various vehicles and repair various waste lead-acid batteries. The technology has simple operation, low cost, easy promotion, wide range of application and remarkable economic and social benefits.

The invention belongs to the field of metallurgy, and relates to a lead-antimony rare-earth positive grid alloy and a preparation method thereof. The alloy comprises the following metal elements in percentage by mass: 0.5 to 1 percent of antimony, 0.005 to 0.1 percent of lanthanum, 0.005 to 0.1 percent of samarium, and the balance of lead. The preparation method comprises the following steps: preparing lead-lanthanum and lead-samarium alloy as master alloys; adding pure antimony into molten lead, stirring until the pure antimony is completely molten; and adding the lead-lanthanum and lead-samarium master alloys to perform mixed melting to prepare the lead-antimony rare-earth positive grid alloy. Grains of the prepared alloy become fine, uniform and regular, so that the comprehensive mechanical performance of the alloy can be improved, the impedance of an oxide film can be reduced, and the charge and discharge acceptance and deep cycle performance of a storage battery can be improved. Meanwhile, rare-earth element serves as an additive to prepare the lead-antimony grid alloy, arsenic, cadmium and other elements harming the environment and workers on the forefront of production severely are not contained. Therefore, lead alloy pollution can be reduced furthest.

The invention belongs to the technical field of lead storage batteries, and in particular relates to a high-temperature valve-regulated lead-acid storage battery and a preparation method thereof. In the high-temperature valve-regulated lead-acid battery, the positive electrode grid alloy adopts a high-tin alloy and adds La, Ce and Ag metal elements; the positive electrode active material adds 4BS, Bi 2 o 3 、Lu 2 o 3 and Na 2 SO 4 Add 2 Naphthalene Sulfonate Sodium, Cabot Carbon Black and β Naphthol in the negative electrode active material; Add stannous sulfate and ammonium sulfate in the electrolyte. The high-temperature valve-regulated lead-acid battery of the present invention enhances the corrosion resistance of the positive electrode grid under high temperature environment, shortens the aging hardening speed of the grid, enhances the strength of the active material of the positive electrode, reduces the shrinkage of the negative electrode, improves the conductivity of the active material, and enhances charging. High efficiency, so that the service life of the battery in the environment of 50°C to 70°C is about 1.5 times longer than that of the existing battery; the preparation method is scientific, reasonable, simple and easy to implement.

The invention discloses a rare earth / lead / calcium alloy plumbic acid battery panel grid material. The rare earth / lead / calcium alloy comprises 0.1-5 wt% of rare earth, 90-99 wt% of metal lead and 0.1-5wt% of metal calcium. The invention further comprises a preparation method of the rare earth / lead / calcium alloy plumbic acid battery panel grid material. The method comprises the steps that rare earth, metal lead and metal zinc are melted in a metal pot, rapid solidifying cooling is conducted before pouring is conducted, and the rare earth / lead / calcium alloy plumbic acid battery panel grid material is obtained. The method has the advantages of being simple and efficient, the resistance of a divalent lead compound on the surface of the plumbic acid battery panel grid material is lower, the porosity is higher, the conductivity is improved, and deep circulation performance of a plumbic acid battery is improved fundamentally.

The invention discloses alloy capable of improving the creep resistance. The alloy capable of improving the creep resistance comprises the following raw materials in percentage by weight: 2 to 2.5 percent of Si, 0.01 to 0.03 percent of S, 25 to 33 percent of Cr, 25 to 33 percent of Fe, 6 to 8 percent of Co, 22 to 29 percent of Ni, 2.2 to 5.3 percent of Cu, 4.3 to 5.2 percent of Mo, 5.1 to 6.3 percent of B, 0.1 to 0.25 percent of C, 0.01 to 0.2 percent of rare-earth, 1.3 to 2.6 percent of Mg, 2.8 to 4.1 percent of Mn and 0.01 to 0.05 percent of Se. According to the alloy disclosed by the invention, through the addition of a rare-earth element-La and other elements, a crystal structure forming the alloy is changed, and the properties such as the plasticity and the stress resistance of the alloy are changed, so that the corrosion resistance and the creep resistance of a grid are improved, the maintenance-free performance of a battery is favorably improved, the polarization performance ofan electrode is improved, passivation of active matters is effectively reduced, the efficiency of redox reaction of lead plaster on different zones of the grid during a charging-discharging process ischanged, and the service life is prolonged.

The invention belongs to the technical field of accumulators, and in particular relates to a lead paste composition internalized into a positive electrode of a battery. The internalized battery cathode lead paste composition of the present invention is made of the following raw materials in parts by weight: 990-1010 parts of lead powder, 0.5-1.5 parts of fiber, 0.5-1.0 parts of phosphoric acid, 1-2 parts of antimony trioxide, and 0.7 parts of zinc oxide. ~1.2 parts, 0.5~1.5 parts of aluminum oxide, 0.5~0.8 parts of ammonium bicarbonate, 0.3~0.5 parts of cerium hydroxide, 0.7~1.5 parts of tin oxide, 110~130 parts of water, 80~90 parts of dilute sulfuric acid. The invention improves the anode lead paste composition so as to suppress the early stage capacity decay of the internalized battery and prolong the service life of the deep cycle discharge of the battery.

The invention discloses a long-service-life deep-cycle lead-acid battery positive grid alloy which is composed of the following raw materials in percentage by mass: 0.05-0.12% of calcium, 0.1-2.0% of tin, 0.01-0.1% of aluminum, 0.01-0.2% of zinc, 0.01-0.2% of silver and the balance of lead. The alloy has favorable corrosion resistance, and does not influence the deep cycle performance of the battery. The addition of the zinc can well enhance the deep cycle performance and low-temperature properties of the battery. The addition of the silver can enhance the corrosion resistance of the grid alloy; and the comparison between Figure 1 and Figure 2 indicates that the silver can be enriched at the grain sub-boundary and grain boundary along with the tin, and the silver enriched at the grain boundary can enhance the corrosion resistance of the grain boundary, thereby prolonging the service life of the alloy grid.

The alloy with very low Sb content for accumulator plate contains Sb 0.7-1.0 wt%, Cu 0.03-0.06 wt%, S 0.003-0.006 wt%, As 0.15-0.25 wt% and Sn 0.1-0.3 wt% except Pb. The alloy has lower Sb content and thus low cost, and has raised Cu, As and trace elements resulting in raised strength, raised anticorrosive performance, high creepage resistance, and raised comprehensive product performance.

The invention discloses a repair method of a decommissioned lead-acid battery, a repair electrolyte and a preparation method of the repair electrolyte, and relates to the field of repair of lead-acid batteries. The invention aims to provide a method for preparing a lead-acid battery, which can effectively promote the dissolution of non-conductive coarse-grain lead sulfate, revive the decommissioned battery, enhance the deep cycle performance of the decommissioned lead-acid battery, prolong the service life of the decommissioned lead-acid battery and prolong the service life of the decommissioned lead-acid battery. According to the repair method, the repair electrolyte and the preparation method of the repair electrolyte, the heat resistance is improved so as to adapt to different working conditions in echelon utilization of the decommissioned lead-acid battery. The repair electrolyte for the decommissioned lead-acid battery is prepared from the following components in parts by mass: 0.5 to 1.2 parts of polyvinylpyrrolidone, 2.8 to 3.8 parts of active carbon fiber, 6.5 to 9.5 parts of sodium silicate, 1.5 to 2.5 parts of nano silicon dioxide, 4 to 7 parts of sodium sulfate, 4 to 6.5 parts of zinc sulfate, 3 to 5 parts of copper sulfate and 70 to 86 parts of ultrapure distilled water. According to the repair method of the decommissioned lead-acid battery, the repair electrolyte for the decommissioned lead-acid battery is adopted for repair.

The invention relates to the technical field of photovoltaic power generation, in particular to a power generation capacity optimization system of a photovoltaic power station. The system comprises aphotovoltaic module for absorbing sunlight and converting solar radiation energy into electric energy, wherein the photovoltaic module is formed by connecting solar cells in series or in parallel; a storage battery pack for storing the electric energy generated by the photovoltaic module, wherein the photovoltaic module is connected with the storage battery pack through a photovoltaic controller to perform over-charge and over-discharge protection for the storage battery pack; an inverter connected with the storage battery pack to convert a direct current to an alternating current; and a cooling cycle unit connected with the photovoltaic module to perform cooling and temperature reduction of the photovoltaic module. The photovoltaic module is cooled by cooling water circulation to greatlyimprove the utilization of the photovoltaic module, optimize the power generation system of the photovoltaic power station and improve the power generation efficiency.

The alloy is composed of 0.06í½0.08úÑ by weight Ca, 0.80í½2.50úÑ by weight Sn, 0.02í½0.05úÑ by weight Sr, and lead in amount of margin. Appropriate amount of Sr is added to improve corrosion-resistance and creep- resistance of the alloy, and to last useful life, and to improve age hardening speed, hardness and mechanic properties, and also to improve the early capacity loss and poor deep cycle ability.

The invention discloses a storage battery electrode plate with carbon fiber membrane colloid laminated on a surface layer and a preparation method. A positive electrode plate comprises a substrate and the surface layer, wherein the surface layer is formed in a laminating manner and mainly comprises the following components in percentage by mass: 95%-98% of lead (Pb), 0.06%-0.15% of calcium (CA), 0.03%-0.1% of stannum (Sn) and 1%-5% of a carbon fiber; and a carbon fiber membrane is prepared from the following components by mass fraction: 52%-67% of carbon (C), 12%-22% of graphene, 8%-21% of a PTFE binder and the balance being inevitable impurities. The electrode plate disclosed by the invention has relatively high heavy current discharge performance and relatively high hydrogen-evolution and oxygen-evolution over-potential, so that a storage battery electrolyte is relatively stable and free of maintenance.