40results about How to "Reduce Sulfation" patented technology

The invention belongs to the technical field of lead storage batteries and relates to a negative electrode diachylon which is capable of improving dynamic charging acceptance performance of an AGM battery and a preparing method thereof. The negative electrode diachylon is capable of improving the dynamic charging acceptance performance of the AGM battery under the condition that the AGM battery has the advantages of being long in service life and strong in starting capacity, the probability of sulfation of a negative plate when the negative plate is in a partial charge state for a long time is reduced, and then starting and shut-down requirements are met.

The invention discloses a super battery plate which comprises a positive plate and a negative plate; the raw materials of the positive plate consist of lead powder, carbon fibers, carbon materials, short fibers and sulfuric acid solution; the raw materials of the negative plate consist of lead powder, PTFE, barium sulphate, humic acid, lignin sodium sulplate, carbon fibers, carbon materials, shortfibers and dilute sulfuric acid; the super battery prepared by the super battery plate has the advantages of high specific power and specific energy as well as long charge and discharge service lifeof a large pulse current. Moreover, the discharge of a low-temperature large current is batter than that of a common battery.

A lead powder coated with metal element doped with carbon as negative electrode material of lead-carbon battery is characterized in that carbon containing metal element is coated on the surface of lead oxide particles constituting the lead powder. The preparation method of the material is as follows: first, add the soluble salt solution of the metal element as the hydrogen evolution inhibitor into the complexing agent solution, and mix evenly; after the metal ion and the complexing agent react completely to form a metal ion complex solution, the lead Add the powder into the complex solution and stir well, heat to remove water, so that the complex is coated on the surface of the lead powder particles; finally, the product is carbonized in an inert gas to obtain a metal element-doped carbon-coated lead powder . The feature of this method is that the carbon coating of lead powder and the suppression of hydrogen evolution modification of the coated carbon can be realized at one time through in-situ compounding. The metal element-doped carbon-coated lead powder composite lead-carbon battery negative electrode material has good electrochemical performance.

The invention relates to a superbattery negative plate and a manufacturing method thereof. A front surface coating adopting lead powder as a main component is coated on the front surface of a substrate, and a carbon material coating is coated on the back surface of the substrate. The front surface coating comprises the following components by weight percent relative to the content of the lead powder: 0.2 to 2.0(wt)% of acetylene black, 1.0 to 2.0 (wt)% of barium sulfate, 0.2 to 0.5 (wt)% of lignin, 0.3 to 0.5 (wt)% of humic acid, 0.1 to 0.8 (wt)% of short fibers and 1 to 5.0(wt)% of adhesives. The carbon material coating 3 comprises the following components by weight percent: 65 to 90(wt)% of carbon material, 5 to 25(wt)% of acetylene black and 1 to 10(wt)% of adhesives. The carbon layer having a double-electric-layer structure is introduced onto the traditional storage battery negative plate, so that the superbattery has high specific power and can be charged and discharged at a large current, the sulfation of the lead paste on the front surface of a cathode at the HRPSOC (high-rate partial state of charge) state can be reduced, and the HEV (hybrid electrical vehicle) application can be met.

The invention provides a lead-acid storage battery electrolyte delamination mitigation agent, which is one or more of PP, PE, PVC, PU and polyvinyl fluoride polymer materials. The present invention utilizes the inertial effect when the vehicle starts, stops, accelerates, decelerates and other non-uniform motions or bumps, or the density change of the electrolyte itself when the battery is charged and discharged, to mix the electrolyte and slow down the stratification of the electrolyte. It is mainly a fine particle composed of a series of properties such as acid corrosion resistance, oxidation resistance, and non-conductivity. It is added into the electrolyte after the battery is formed, and has the advantages of simple manufacture, convenient addition, low cost, and obvious effect.

The invention relates to a high-temperature heavy-load negative lead paste for a start-stop battery and a preparation method of the negative lead paste, and belongs to the technical field of electrochemistry. The high-temperature heavy-load negative lead paste for the start-stop battery is prepared from the following components: dilute sulfuric acid with the density rho of 1.38g / mL, deionized water, a high-performance organic additive Expander 1, a high-performance organic additive Expander 2, a conductive polyester staple fiber, barium sulfate, a carbon material additive Carbon A and lead powder. The invention provides the high-temperature heavy-load negative lead paste for the start-stop battery with long service lifetime and deep discharge cycle performance under the partial state of charge and a preparation method of the negative lead paste. The negative electrode produced by the formula can significantly improve sulfation of the negative electrode under the partial state of charge, reduces the electrochemical polarization phenomenon of the battery in the high-temperature deep circulating charge and discharge processes, and improves the conductivity and the electrochemical property of the negative electrode and the thermodynamic structure stability, so that the high-temperature deep discharge cycle lifetime of the negative electrode under the partial state of charge is prolonged.

The invention discloses a lead carbon electrode and a preparation method thereof. The lead carbon electrode contains mixed carbon, a carrier, an expansive agent, an intermiscibility additive, nanocarbon coated lead, and lead powder. Among the components, the lead powder is the basic component; the mass ratio of mixed carbon to lead powder is 1%-3%, the mass ratio of the carrier to the lead powder is 1%-2%, the mass ratio of the expansive agent to the lead powder is 1.4%-1.7%, the mass ratio of the intermiscibility additive to the lead powder is 0.1%-0.3%, and the mass ratio of the nanocarbon coated lead to the lead powder is 1%-2%. The invention adopts a six-step process to obtain the lead carbon electrode, and the technological steps include raw material preparation, raw material mixing, paste mixing process, coating process, curing process, and polar plate formation. The purpose of the invention is to acquire a lead carbon electrode by formulation technique and a preparation method thereof.

The invention relates to the field of lead carbon batteries, and discloses lead carbon battery negative electrode lead plaster for energy storage and a preparation method thereof. The negative electrode lead plaster is prepared from the following components in parts by weight: 100 parts of lead powder, 6-9 parts of sulfuric acid, 8-13 parts of deionized water, 0.5-1.0 part of barium sulfate, 0.1-0.3 part of lignin, 0.1-0.5 part of graphite, 0.1-0.3 part of carbon black, 0.01-0.10 part of stearic acid, 0.2-0.5 part of polyethylene glycol, 0.5-1.0 part of activated carbon, 0.1-0.6 part of carbonnano tube doped graphene nanosheet, 0.01-0.06 part of indium oxide and 0.08-0.15 part of short fibers. Through improving a formula of the negative electrode lead plaster of the lead carbon battery and the preparation method thereof, the charging receptivity of the battery is improved, the sulfation of a negative electrode is slowed down, the water consumption of the battery is reduced, and the practical service life of the lead carbon battery is further prolonged.

The present invention relates to the technical field of lead-acid batteries, in particular to a tubular battery positive lead paste and a preparation method thereof. The tubular battery positive lead paste comprises the following components in parts by weight: 25-80 parts of lead powder, Pb 3 o 4 20 to 75 parts, 8 to 12 parts of sulfuric acid, 8 to 13 parts of deionized water, 0.2 to 2.0 parts of tetrabasic lead sulfate, 0.2 to 0.8 parts of sodium sulfate, 0.05 to 1.8 parts of stannous sulfate, and 0.01 to 0.1 parts of carbon nanotubes and 0.1 to 0.6 parts of polyethylene glycol. The cathode lead paste of the tubular battery of the present invention can significantly improve the pass rate of extruded paste of the tubular positive plate, reduce the manufacturing process cost of the battery; significantly improve the formation effect of the tubular positive plate, and reduce the gap between the upper and lower parts of the plate. The formation difference; the improvement of the formation effect and the decrease of the internal resistance of the positive electrode active material increase the utilization rate of the positive electrode active material and the capacity of the battery; further enhance the charging acceptance capacity of the battery, and effectively slow down the sulfuric acid on the positive electrode of the tubular battery. Salinization significantly improves the cycle life of tubular batteries.

The invention relates to a partially-graphitized active carbon-based lead-carbon battery composite additive, a preparation method and applications thereof, wherein graphite ribbons are distributed inactive carbon particles, the graphite ribbon content in the carbon particles is 0.1-50 wt%, the active carbon particles contain lead as a hydrogen evolution inhibitor, the specific surface area of thematerial is 10-3000 m<2> / g, the electrical conductivity is 0.01-100 S / cm, and the lead content is 0.01-30 wt%. According to the present invention, the preparation process has advantages of simple steps, low energy consumption, low water consumption, low production cost and the like; and the lead-carbon battery with the negative electrode doped with the lead poisoning partially-graphitized activecarbon has excellent charging / discharging reaction reversibility, excellent charging / discharging cycle life and excellent charging receiving capability compared to the traditional lead acid battery.

The invention discloses a lead-acid ultra-battery which comprises a negative plate and is characterized in that the negative plate comprises a negative grid, and the paste coating the negative grid contains conducting polymer provided with Faraday pseudo-capacitor energy storage. Compared with the prior art, the lead-acid ultra-battery of the invention has the following advantages: 1, by introducing the conducting polymer having the characteristics of the Faraday pseudo-capacitor, the lead-acid ultra-battery also has the characteristics of the Faraday pseudo-capacitor; and 2, the lead-acid ultra-battery of the invention has good high-rate performance, particularly, the lead-acid ultra-battery is capable of keeping more than 85% of the initial capacity (1C) when charging or discharging at 10C; and 3, thanks to the capacitor energy storage, the invention reduces the current on the lead negative plate of the lead-acid ultra-battery, and meanwhile, the invention correspondingly reduces the depth of discharge of the lead-acid ultra-battery, greatly reduces the sulfation on the surface of the lead negative plate, greatly prolongs the service of the lead-acid batteries and solves the problem that the service life of the lead-acid batteries is short.

The invention specifically relates to a flat-plate type sulfur-resistant low-temperature SCR denitration catalyst and a preparation method thereof, belonging to the fields of environmental protection and environmental catalysis. The method comprises the following steps: with nanometer composite oxide Ce-ZrO2 as a carrier, manganese oxide as an active component and iron oxide and molybdenum oxide as cocatalysts, carrying out equivalent-volume impregnation, drying, roasting and crushing so as to prepare a powdery catalyst; and subjecting the prepared powdery catalyst to acidification by sulfuric acid and then carrying out mixing, rolling coating, fold pressing, shearing, drying and roasting so as to obtain the flat-plate type sulfur-resistant low-temperature SCR denitration catalyst. The prepared catalyst has denitration activity of 85 to 98% in a temperature range of 80 to 150 DEG C and has excellent resistance to sulfur dioxide poisoning.