328results about How to "Improve charge acceptance" patented technology

The invention discloses methods and equipment for recovering waste diachylon by a wet method and manufacturing an electrode active substance material of a high performance lead acid battery by the wet method. The equipment comprises device required for a technology process by a chemical method, a chemical machinery method or an electrochemical machinery method. The active substance material provided by the invention can substantially raises an utilization rate of the active substance of the lead acid battery, specific energy of the battery and charging capability of the battery, simultaneously avoids generation and discharge of harmful substances such as lead gas, lead smoke, lead dust and SO2, raises a lead utilization rate in a production process, is beneficial for treating and recycling lead compounds and lead-containing liquid generated in a lead gas recovering process in a plate casting or welding technology, and reduces cost.

This invention relates to the plus plate lead paste of lead-acid battery comprising (by weight percentages based on lead powder): lead powder 100%, 1.4g / cm3 sulfuric acid 8-12%, deionized water 9-11%, lead dioxide 3-4.2%, short fiber 0.05-0.06%, carbon fiber 0.10-0.15%, anisotropic graphite 0.2-0.4% and bismuth oxide 0.05-0.11%. In this invention, on the based on certain water and acid content in the active substance, additional positive pole active substances are added such as anisotropic graphite and bismuth oxide or the like. The changed components improve the primary battery volume and the ratio of weight / energy with prolonging battery service life.

The invention relates to vehicle used high-temperature lead acid battery negative pole lead plaster and a preparation method thereof, belongs to the storage battery technical field and is used for improving the high-temperature service life and the low-temperature starting capacity of the storage battery. The technical proposal is as follows: the lead plaster solid raw material comprises the following materials by the weight unit: 100 units of lead powder, 0.01 to 0.5 units of sodium lignosulfonate, 0.01 to 0.8 units of high-temperature sodium lignosulfonate, 0.01 to 1.0 unit of graphite powder, 0.03 to 0.08 units of fibre, 0.3 to 1.2 units of barium sulfate, 0.2 to 1.0 units of humic acid and 0.1 to 0.4 units of black carbon. The materials, such as the high-temperature sodium lignosulfonate and the graphite powder are added to the compounding recipe of the negative pole lead plaster, thereby the performance of the negative pole active materials is effectively improved at the high temperature by matching with the reasonable compounding recipe ratios of the added materials, the contraction is reduced, thereby the high-temperature service life and the low-temperature starting capacity of the storage battery are enhanced, particularly the high-temperature service life can be above 90 percent higher than the storage battery prepared based on a common compounding recipe.

The invention provides a variable-polarity lead-acid battery and a using method of the variable-polarity lead-acid battery. Positive and negative plates of the lead-acid battery consist of the same grids and lead plasters, and after one or more times of charge-discharge cycle of the battery, the polarities of the positive and negative plates are exchanged. The variable-polarity lead-acid battery has the advantages that the problem of vitriolization of an ordinary lead-acid battery can be solved, the service life of the battery is prolonged, and the utilization ratio of active substances is increased at the same time, so that the charge receptivity and the discharge capacity of the battery are greatly improved.

The invention relates to a lead plaster for a low temperature resistant lead storage battery for an electric scooter and a preparation method of the lead plaster. The lead plaster comprises an anode lead plaster and a cathode lead plaster, wherein the anode lead plaster comprises the following components in parts by weight: 950-970 parts of lead powder, 80-86 parts of 1.3-1.4g / cm<3> sulfuric acid, 110-125 parts of pure water, 3.0-4.0 parts of colloidal graphite, 30-50 parts of red lead, 1.0-1.5 parts of tin sulfate, 0.5-1.0 part of sodium sulfate and 0.7-0.9 part of short fiber; the cathode lead plaster comprises the following components in parts by weight: 1000 parts of lead powder, 75-81 parts of 1.3-1.4g / cm<3> sulfuric acid, 105-120 parts of pure water, 0.6-0.8 part of short fiber, 6.0-7.0 parts of barium sulfate, 1.0-1.5 parts of Norway lignin, 4.0-5.0 parts of humic acid, 3.0-5.0 parts of acetylene black and 1.0-1.5 parts of semi-carbonized saw dust. According to the lead plaster and the preparation method thereof, the acceptance performance when the battery is charged at low temperature is improved and the discharge capacity is increased; the lead plaster disclosed by the invention is applicable to low-temperature environment and is especially suitable for northeast and northwest regions in China.

A composition comprising a lead species (e.g., leady oxide, porous metallic lead, metallic lead, lead sulfate) a carbon material and an expander are described herein. Also disclosed are electrodes, devices (e.g., batteries) including the same. Methods for making and using the disclosed novel composition are also detailed herein.

The invention discloses a system and method for rapidly charging an energy-feedback type lead-acid battery. Negative discharge pulses generated when the lead-acid battery discharges electricity to a circuit through which a resistor and a capacitor are connected in parallel is converted into front-end electrolytic capacitor charging feedback energy, electric energy stored in an electrolytic capacitor is then transmitted to the lead-acid battery when positive pulse charging is conducted, and the charging method has the energy conservation effect; as the second improvement, three triangular current waves are used for being equivalent to positive pulses and negative pulses generated through an existing positive and negative pulse type charging method, the problem of polarization in the rapid charging process of the lead-acid battery is further solved, the pressure, temperature and inductance inside the battery are decreased, energy loss is reduced, the charge acceptance capacity of the lead-acid battery is enhanced, electric energy is more effectively converted into chemical energy to be stored, charging efficiency is improved, the charging speed is further increased, charging time is shortened, the number of times of circulated use of the lead-acid battery is increased, and the system and the method are suitable for popularization and application.

The invention provides a lead-acid storage battery negative lead plaster capable of inhibiting hydrogen evolution and a preparation method. The technical scheme of the lead-acid storage battery negative lead plaster is as follows: the lead plaster is prepared from the following solid raw materials in parts by weight: 100 parts of lead powder, 1-3 parts of carbon source, 0.15-1.0 part of zinc source, 0.3-2 parts of barium sulfate, 0.1-0.5 part of sodium lignosulfonate and 0.01-0.5 part of fibers. The lead-acid storage battery negative lead plaster provided by the invention is characterized in that a certain quantity of zinc-containing compounds and different types of carbon are added to the negative lead plaster, so that the grain size and the microstructure of the lead negative material are improved, and therefore, the purposes of increasing the capacity of a lead-acid battery, enhancing the ability of the battery to accept charging and improving the charge-discharge cycle stability of the battery are achieved. Tests indicate that the doping of the zinc compound in the negative lead plaster causes the hydrogen evolution potential at the cathode of a lead-acid storage battery to be more negative, so that the hydrogen evolution difficulty is increased, the hydrogen evoluted is reduced, the consumption amount of an electrolyte in the use process is reduced and the service life of the battery can be prolonged; and furthermore, the odds of unsafe accidents such as explosion and the like are reduced to a certain extent.

The invention discloses a negative plate of a lead-carbon battery and a preparation method thereof. The negative plate consists of lead powder, active carbon, carbon black, barium sulfate, sodium lignosulfonate, humic acid, short fiber and sulfuric acid. The battery prepared by the negative plate has the advantages that the charging acceptance can be effectively improved, the sulfation phenomenon of the negative electrode under high-rate partial state of charge (HRPSoC) is effectively relieved, the times of 2C charge-discharge rate circulation (3%DOD) under 50% state of charge can reach 18442, and compared with the traditional lead-acid storage battery, the cycle life can be prolonged by more than two times.

The invention discloses a lead-acid accumulator colloid electrolyte. The lead-acid accumulator colloid electrolyte comprises the following compositions in percentage by mass: 30 to 45 percent of sulphuric acid, 4 to 12 percent of nanometer silicon dioxide, 0.05 to 0.5 percent of macromolecular stabilizing agent, 0.1 to 0.5 percent of superfine glass fibre, 0.1 to 0.5 percent of boric acid, 0.1 to 1 percent of phosphoric acid, 0.3 to 2.5 percent of sodium sulfate and 50 to 57 percent of water. The electrolyte is added with the macromolecular stabilizing agent and the hydrophilic superfine glass fibre and sets up a strong network structure with the sulphuric acid and water molecules; the macromolecular stabilizing agent effectively prevents the delamination of various compositions and the hydration of the colloid electrolyte; the superfine glass fibre in the colloid electrolyte forms a reinforcing rib of the colloid electrolyte, effectively prevents the colloid electrolyte from seriously crazing, strengthens the tensile strength and vibration resistance performance of the colloid and has the strong liquid absorption capacity which improves the diffusing and transmitting speed of the electrolyte. The lead-acid accumulator colloid electrolyte improves the charging and receiving capacity, thereby increasing the cycle life of an accumulator.

The invention discloses a negative plate of a battery, a preparation method thereof and the battery comprising the negative plate. The negative plate is composed of a plate grid and a negative pole material coated on the plate grid, and the negative pole material comprises a battery active material, a capacitor material as well as a conductive steric hindrance agent; the battery active material comprises 100 parts by weight of lead powder, 0.6-2.0 parts by weight of barium sulfate and 0.1-0.5 part by weight of short fiber, and the capacitor material comprises 0.1-10 parts by weight of active carbon; and the additive amount of the electric conduction steric hindrance agent is 0.1-5.0 in parts by weight, and the conductive steric hindrance agent comprises Magneli mutual sulfoxide titanium oxide and / or plumbous acid barium. The raw material of the negative plate of the battery provided by the invention can be used for postponing a negative board sulphate phenomenon through combining the three parts, the cold-starting property is markedly improved, and the heavy-current charge-discharge property is optimized.

The invention relates to a lead and carbon composite material-containing lead-carbon super storage battery. The anode active material of the lead-carbon super storage battery contains the lead and carbon composite with high specific capacitance. The anode material of the lead-carbon super storage battery comprises 1 to 75 weight percent of lead, 2 to 95 weight percent of lead and carbon compositematerial with high specific capacitance and 1.5 to 5 weight percent of additive. The lead-carbon super storage battery provided by the invention can be manufactured by fewer steps, has a simple internal structure, is low in cost and has a long service cycle life due to the fact that the anode lead plaster is insusceptible to stripping.

A pasted positive nickel hydroxide electrode for use in battery cells (e.g., in nickel zinc cells, and nickel metal hydride cells) includes nickel hydroxide particles, a cobalt metal and / or cobalt compound and a sulfur-containing complexing agent capable of forming a complex with cobalt. The presence of the sulfur-containing complexing agent, such as dialkyldithiocarbamate (e.g., sodium diethyldithiocarbamate) improves lifetime and capacity utilization of the nickel electrode. The resulting pasted nickel hydroxide electrode includes a CoOOH conductive matrix after formation. The surface of the nickel hydroxide particles in the electrode is modified in some embodiments by providing a cobalt-containing coating onto the surface of the nickel hydroxide particles, followed by oxidation with a strong oxidizing agent. The complexing agent can be added before, after, or during the oxidation.

The invention discloses a lead-carbon battery for a motorcycle. The lead-carbon battery comprises positive grid, a positive lead plaster coated on the positive grid, a negative grid and negative lead plaster coated on the negative grid, wherein the positive lead plaster is prepared from the following raw materials in parts by weight: 100 parts of lead powder, 9-10 parts of dilute sulfuric acid which is 1.400 in density, 0.02-0.03 part of short fiber, 0.15-0.3 part of graphite and 13-14 parts of purified water; and the negative lead plaster is prepared from the following raw materials in parts by weight: 100 parts of lead powder, 0.95-1.15 parts of expanding agent, 1-4 parts of complex carbon material, 7-8 parts of dilute sulfuric acid which is 1.400 in density, 0.015-0.025 part of short fiber and 11-14 parts of purified water. The positive and negative active substance utilization ratio of the prepared lead-carbon battery for the motorcycle is increased by 15-25 percent in comparison to a conventional battery. When the battery is started for discharging at large current at the multiplying power of 8-10 times, the output power is stable.

The invention relates to negative pole lead paste for a lead-carbon super storage battery. The lead paste is prepared by mixing solid raw materials consisting of 1 to 93 percent of lead powder and 2 to 95 percent of lead-carbon composite material by using a paste mixing machine via a dry-mixing method and a wet-mixing method. The lead-carbon composite material of the negative pole lead paste for the lead-carbon super storage battery is prepared by the electro-deposition method and contains 25 to 55 weight parts of lead. The negative pole lead paste can increase the porosity and the utilization rate of negative pole active substances, improve the contraction state of a negative polar plate and enhance the bonding force between the lead paste and the polar plate as well as between the lead powder and the active carbon with high specific area, functions like a negative pole lead paste super capacitor under the condition of high carbon-added quantity, and improves the comprehensive performance of the storage battery.

The invention discloses rare-earth lead alloy for a lead-acid storage battery positive grid. The rare-earth lead alloy is characterized by being prepared by smelting the following component materials by weight percent: 0.01 to 0.12 percent of calcium, 1.2 to 2.0 percent of tin, 0.02 to 0.05 percent of aluminum, 0.01 to 0.12 percent of lanthanum, 0.01 to 0.12 percent of yttrium, 0.02 to 0.15 percent of cerium and the balance being lead. The rare-earth lead alloy is stable in chemical property, good in mobility, excellent in conductivity and strong in corrosion resistance; a lead-acid storage battery which is assembled by the grid is long in cycling life, strong in current discharging capacity and strong in charging acceptance capacity.

The lead plaster for use in battery anode comprises 100 proportion lead powder, 0.05-0.06 proportion fabric,0.2-0.4 proportion acetylene black,0.5-0.8 superfine barium sulphate, 0.5-0.8 proportion humic acids, and 0.1-0.2 proportion ligninsulfonic acid . The oxidation-proof anode ingredient is selected to improve charging property and starting ability at low temperature and attain more cycling times.

The invention provides a lead plaster composition for manufacturing a positive plate of a lead-acid storage battery, which, by weight percentage, comprises 3% to 10% of sulfuric acid, 10% to 15% of water, 0.05% to 0.15% of short fibers, 0.01% to 0.2% of graphite powder, 0.001% to 0.1% of polytetrafluoroethylene emulsion, and the balance lead powder. The lead powder has electrical conductivity and can improve electrical conductivity of active substances of the lead-acid storage battery so as to improve charge acceptance of the lead-acid storage battery, and the polytetrafluoroethylene emulsion can enhance fastness of organizational structures of the active substances and enable the graphite powder to enhance the electrical conductivity of the active substances preferably so as to improve the charge acceptance of the lead-acid storage battery further. The invention provides the positive plate of the lead-acid storage battery manufactured by the lead plaster composition and the lead-acid storage battery which is assembled by the positive plate of the lead-acid storage battery.

New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery.

The invention discloses negative electrode lead paste of a lead-acid storage battery. The negative electrode lead paste of the lead-acid storage battery comprises the following components in percentage by weight: 70-90% of lead powder, 3-15% of sulfuric acid, 5-20% of water, 0.05-2% of short fiber, 0.05-2% of lignin, 0.05-2% of humic acid, 0.05-2% of barium sulfate, 0.1-20% of titanium oxide and 0-10% of carbon. According to the negative electrode lead paste of the lead-acid storage battery, the content of carbon in the components is increased; a material which cannot cause the reduction of negative electrode gassing electric level is generated, so that the performance of a negative electrode plate is improved.

The invention provides a negative lead paste for a lead-carbon battery. The negative lead paste is prepared from the following components in parts by weight: 1-99 parts of lead powder, 0.1-90 parts of a carbon-oxide composite material, 0-0.5 part of carbon black, 0.1-2 parts of barium sulfate, 0.05-0.1 part of a short fiber and 0.01-3.2 parts of an organic swelling agent. Oxides on the surface and in holes of the carbon material of the lead paste are tightly adsorbed to the periphery of the carbon material in an ionic form, and are recombined on the surface and in the holes of the carbon material in curing and drying processes; and a tiny oxide film is evenly attached to the active surface and the holes of the carbon material by 'dissolving and recombination', so that the bonding degree of the carbon material and the oxides is greatly improved; the conduction characteristics and the capacitance characteristics of the carbon material are put into a fully play; and hydrogen evolution on the surface of the carbon material is limited.

The invention relates to an electrolyte of a lead-acid storage battery, particularly to an electrolyte additive of the lead-acid storage battery; the electrolyte additive of the lead-acid storage battery can improve electrochemical performance, prolong the cycle life and improve capacity of the battery. The additive is prepared from graphene oxide, silicon dioxide, sulfate, stannous sulfate and EDTA-Na. By virtue of the electrolyte additive, the electrochemical performance and the capacity of the battery can be effectively improved and the cycle life of the lead-acid storage battery can be prolonged.

The invention discloses a gelled electrolyte of a lead-acid storage battery and a preparation method thereof. The electrolyte comprises the following components: sulphuric acid, silicon dioxide, sodium sulfate, polyacrylamide, polyacrylate sodium, sodium molybdate, calcium molybdate, magnesium molybdate, sodium tungstate, potassium sulfate and deionized water; the method comprises the following steps of: adding the sodium sulfate into dilute sulphuric acid to obtain a dilute sulphuric acid mixed solution, then adding the dilute sulphuric acid mixed solution into a sodium silicate solution to obtain a silicon dioxide colloidal suspension, next firstly adding the sodium molybdate, the calcium molybdate, the magnesium molybdate and the sodium tungstate into a vapor-phase silicon dioxide nano-powder suspension to obtain a nano vapor-phase silicon dioxide powder suspension, then preparing a polyacrylamide solution and a polyacrylate sodium solution, then firstly uniformly mixing the silicon dioxide colloidal suspension and the nano vapor-phase silicon dioxide powder suspension, and then adding the polyacrylamide solution and the polyacrylate sodium solution into the mixed suspension to prepare the gelled electrolyte of the lead-acid storage battery. The gelled electrolyte of the lead-acid storage battery can be widely used in a storage battery with the capability of more than 20AH.

A elongated valve control hermetic sealing lead-acid storage battery lead grease formulation and solidification process, wherein the percentages by weight of each ingredient in the lead grease formula are, lead powder 65-80%, red lead 8úÑí½ 20úÑ, short fibers 0.07úÑí½ 0.15úÑ, sulfuric acid 5úÑí½ 10úÑ, water 5úÑí½ 10úÑ, the high temperature and high moisture process is used for solidification, with a temperature of 70-85 degree C., and a moistness over 95%, the curing time is 20h - 30 h, the invention can guarantee both the initial capacity and the cycle life of the battery.

The invention is a self-cross-linked polyvinyl butyral (PVB) binder for organic photoconductors (OPC's) used in electrophotography. The no cross-linked form of the binder is available from Monsanto Co. in the U.S.A. a Butvar TM , and from Sekisui Chemical Co. in Japan as Slek TM . I discovered that the PVB may be self-cross-linked by subjecting it to a thermal cure at between about 150 DEG -300 DEG C. for about 2 hours. I think other ways of cross-linking, for example, e-beam, UV or X-ray radiation, will achieve results similar to those I obtained with heat. No cross-linker, nor cross-linkable copolymer nor catalyst is required to accomplish the cross-linking. After self-cross-linking, the PV has good mechanical durability and good anti-solvent characteristics. In addition, he self-cross-linked PVB's glass transition temperature (Tg) increases from about 65 DEG C. to about 170 DEG C. Also, when conventional photoconductor pigments are dispersed in the self-cross-linked PVB, they are well dispersed, and the resulting OPC's have good charge acceptance, low dark decay, and, in general, good photodischarge characteristics. Also, OPC's with the self-cross-linked PVB exhibited improved adhesion, so multi-layered OPC's made according to this invention will hav improved inter-layer bonding and longer economic lives.

A flooded-type lead acid storage battery in which charging is intermittently carried out in a short period of time and high-efficiency discharge to a load is carried out in a partial state of charge, wherein the charge acceptance and service life characteristics are improved by using a positive plate in which the specific surface area of the active material is set to 6 m2 / g or more; a negative plate with improved charge acceptance and service life performance obtained by adding a carbonaceous electrically conductive material, and a bisphenol aminobenzenesulfonic acid formaldehyde condensate to the negative active material; and a separator formed from a nonwoven in which the surface facing the negative plate is composed of material selected from glass, pulp, and polyolefin.

The invention discloses a lead plaster additive for a lead-acid storage battery. The lead plaster additive for the lead-acid storage battery comprises the following components in percentage by mass: 0.5-5% of preprocessed one-dimensional carbon nanomaterial, 0.5-6% of dispersing agent and the balance of deionized water. The lead plaster additive for the lead-acid storage battery can effectively restrain the phenomena of sulfation and hydrogen evolution simultaneously, as well as can improve the charge-discharge speed and the service life of the battery. The invention also discloses a preparation method for the lead plaster additive for the lead-acid storage battery, comprising the steps specifically: (1) preparing a pre-processed carbon nano tube; and (2) mixing. The preparation method for the lead plaster additive for the lead-acid storage battery is simple in processing steps, high in operability and suitable for industrial large-scale production.

The invention discloses a high-performance power accumulator and a preparation method thereof. Graphite is substituted by a novel conductive agent, namely, polyaniline, in the lead paste of a positive plate; the conductivity of a mixture of the polyaniline and lead dioxide is improved by 12.5 times; acetylene black is substituted by a novel conductive agent, namely, super carbon black, in the lead paste of a negative plate, the specific surface area of the super carbon black is 130-190m<2> / g, and the adsorption is high. During preparation, water is firstly added, then an additive is added, the water and the additive are mixed and then lead powder is added, while the original steps of adding the additive firstly, adding the lead powder, adding the water and then stirring are changed, so that the additive is well dispersed. According to the high-performance power accumulator and the preparation method thereof, the utilization rate of an active material is effectively improved, the consistency of the battery is improved, the discharge depth of the battery is great, and the cycle life is long.