30results about How to "Reduce floating powder" patented technology

The invention discloses a lithium ion battery pole sheet making method. The method comprises: a pole sheet coating slitting operation; a pole sheet surface treatment operation comprising a step of immersing a coat-slitted pole sheet in an aqueous high-polymer treatment liquid, and a step of drying to obtain a high-polymer film on the surface of the pole sheet; and a made sheet packaging operation. The method which allows the pole sheet surface treatment operation to be increased and the high-polymer film to be formed on the surface of the pole sheet can effectively prevent the powder fall of the lithium ion battery pole sheet, reduce the floatation powder generated in the making process of a battery, improve the bonding force of active substances, and improve the comprehensive electrochemical performances of the lithium ion battery. The invention also discloses a surface treatment device of the lithium ion battery pole sheet. The device comprises, sequentially arranged, an unreeling wheel, a pole sheet immersion material tank, a spreading knife, a drying tunnel, roller machines and a reel wheel, and can automatically and efficiently complete the surface treatment of the pole sheet, so the industrialized continuous production is convenient.

The invention discloses a preparation method of a lead storage battery green plate for reducing dusting powder. The preparation method successively comprises a gypsum mixing process, a gypsum daubing process and a solidifying and drying process, wherein the gypsum daubing process comprises a daubing section, an acid leaching and rolling section and a surface dry treatment section, and an acid leaching solution is prepared from the following components in parts by weight: 12.5-22 parts of 90-95% vitriol, 1-5 parts of fumed silica, 0.5-1 part of lauryl sodium sulfate and 72-86 parts of water. The method disclosed by the invention is simple in operation and is applicable to a positive electrode and a negative electrode, the diachylon water loss of the green plate is reduced under the condition of not increasing processes, and the dehydrating rate is reduced from original 1% to less than or equal to 0.8%; the possibility of diachylon adhesion between pole plates is reduced, the dusting powder on the surface of the pole plate is lowered, and the loss rate of weight of the pole plate is lowered from 0.5-1% to 0-0.4%.

The invention relates to a special environment-friendly electrostatic spraying primer for bathrooms and a construction method thereof. The primer comprises the following raw materials in parts by weight: 60-90 parts of unsaturated polyester resin, 15-35 parts of organic-silicon-modified acrylic resin, 5-15 parts of environment-friendly adsorbent, 2-6 parts of nano silicon dioxide, 1-5 parts of nano titanium dioxide, 1-5 parts of nano calcium carbonate, 5-15 parts of diatomite, 2-8 parts of talcum powder, 10-20 parts of titanium white, 2-10 parts of antirust pigment, 2-5 parts of zinc stearate, 2-6 parts of hydroxyethyl methyl cellulose, 1-2 parts of fumed silica, 0.1-0.5 part of polyamide wax, 0.2-0.8 part of defoaming agent, 0.5-2 parts of leveling agent and 2-10 parts of styrene. The special environment-friendly electrostatic spraying primer for bathrooms can satisfy the construction requirements of electrostatic spraying, has the capacity of adsorbing stinky matters in the bathroom, and has the advantages of excellent moisture resistance, excellent weather resistance and excellent stability.

The invention belongs to the technical field of power batteries and nickel-metal hydride batteries thereof, in particular to a preparing method of a water system capacitor battery positive electrode. The method comprises the steps of roll-welding the current collector used by the positive electrode to conductive strips in advance in the horizontal direction, then making the current collectors soak in battery size, conducting double-rolling sizing and the primary drying, pre-pressing and making the products soak in organic solution, conducting secondary drying, rolling to conduct forming, welding, cutting the products horizontally and vertically to make the positive electrode, wherein, the battery size is the mixture of CMC, conductive agent, adhesives, active substance and current collectors, the organic solution is the mixture of NMP, conductive carbon black and PDVF. According to the preparing method of water system capacitor battery positive electrode, the dense combination of the active substance and the current collectors is achieved, the preparation process is continuous and intelligentized. The conductivity of the electrode piece is hugely increased, at the same time, the mechanical strength of the electrode piece is increased. The produced positive electrode piece has a high mechanical strength, excellent flexibility and smoothness. The method can satisfy the ultrahigh current and ultrahigh power input and output requirements in the full service life cycle of the water system capacitor batteries.

The invention discloses an environment-friendly material-saving device for sulfuric acid rolling of smeared unformed plates through rolling dipping of a rich solution with a barren solution. The device comprises an upper rolling dipping roll, a lower rolling dipping roll, an upper transfer roll, a lower transfer roll, an upper rolling roll, and a lower rolling roll, wherein the upper rolling dipping roll is rolled through an upper rolling dipping acid tank below the upper rolling dipping roll in a soaked manner, and the lower rolling dipping roll is rolled through a lower rolling dipping acid tank below the lower rolling dipping roll in a soaked manner; the upper rolling dipping roll and the lower rolling dipping roll are respectively in contact with the upper transfer roll and the lower transfer roll to transfer rolling; the upper transfer roll and the lower transfer roll are respectively in contact with the upper rolling roll and the lower rolling roll to transfer rolling; a gap is formed between the upper rolling roll and the lower rolling roll; an unformed plate delivery rollway is arranged in the gap; roll surfaces of the upper rolling dipping roll, the lower rolling dipping roll, the upper transfer roll, the lower transfer roll, the upper rolling roll and the lower rolling roll are all wrapped with acid-resistant and acid-absorbent roll cloth. When the unformed plates are rolled through the device, dripping of dilute sulfuric acid and lead mud is prevented, so that the acid rolling lead mud and the acid are not wasted, and a surface acid layer is thin and uniform.

The invention belongs to the field of lead-acid storage batteries and particularly relates to a process for quickly curing and drying a negative electrode plate. The process at least comprises the following program steps of (1) a curing constant-temperature high-humidity maintaining stage, (2) a curing heating constant-speed dehumidifying stage, (3) a curing heating rapid dehumidifying stage, (4)a drying heating rapid dehumidifying stage, (5) a drying high-temperature rapid enhancing stage and (6) a drying cooling rapid strength stabilizing stage. According to the green polar plate cured anddried according to the process, the content of basic lead carbonate of the green polar plate is increased, the falling strength of the green polar plate is further improved, lead plaster looseness isreduced after falling, and the floating powder amount on a surface of the green polar plate is reduced, improvement of the strength of the green plate reduces a reject ratio of subsequent slicing andwrapping of the green plate. The process is advantaged in that the floating powder amount is small, lead powder flying dust in the subsequent polar plate production process is reduced, and environmental pollution is reduced, and the rapid curing and drying process can reduce the use amount of steam and electricity in the process, reduce curing and drying energy consumption and reduce manufacturingcost.

The invention discloses a method for making a positive pole piece of a high-rate lithium-ion battery, which is characterized in that it comprises the following steps: taking nickel-cobalt lithium manganese oxide, polyvinylidene fluoride, carbon black, and conductive graphite; baking under vacuum conditions , cooling; Pour polyvinylidene fluoride into N-methylpyrrolidone solution to make it fully dissolved, then pour carbon black, conductive graphite and nickel cobalt lithium manganate into the dissolved solution to make a slurry; the slurry Coated on the surface of aluminum foil, volatilize N-methylpyrrolidone in an oven and then dry; add polyvinylpyrrolidone to anhydrous ethanol to stir and dissolve to make a solution, and coat it on the pole piece with slurry, bake it in vacuum and cool it The pole piece is pressed into a positive pole piece with a rolling mill. The pole piece prepared by the method of the invention has the characteristics of less floating powder, smooth and burr-free surface of the pole piece, good high-rate discharge performance and high reliability, and the operation method is simple and easy, and the qualified rate of battery assembly is high. Lithium-ion batteries are suitable for power tools and electric bicycles.

The invention discloses a method for preparing a high-durability silicic acid storage battery comprising the steps of selecting a negative constant plate groove; feeding the plate charged with a negative constant method; at the end, performing current discharge for 0.5h at the last stage, grooving the plate, and directly drying the same without washing. The plate produced by the method provided bythe invention has less surface floating powder on the surface, and the floating powder can be reduced by about 20%, thereby improving the service performance and service life of the battery and improving the production environment of the employee.

The invention relates to the field of cosmetics, and particularly discloses a highlight for cosmetics and a preparation method thereof. The highlight for cosmetics is prepared from the following components in percentage by mass: 18.85-27% of A-phase pearling agent, 8-16.15% of B-phase pearling agent, 5-11% of C-phase pearling agent, 4-9% of D-phase pearling agent, 4-8.5% of E-phase pearling agent, 2-6% of F-phase pearling agent and the balance other assistants, totaling 100%; the A-phase pearling agent is a mixture of aluminum oxide, tin oxide and titanium dioxide, wherein the aluminum oxide, tin oxide and titanium dioxide respectively account for 57-79%, 1-6% and 20-37% of the total amount of the A-phase pearling agent; and the B-phase pearling agent is a mixture of aluminum oxide, tin oxide and titanium dioxide. The highlight has favorable fitness and glossiness.

The invention discloses a lead-acid storage battery positive plate circular water cleaning process. The lead-acid storage battery positive plate circular water cleaning process is characterized by comprising the following steps that after a negative plate is charged, grooving is carried out, after grooving, the plate is cleaned in 1-2# washing ponds, in the 1-2# washing ponds, circular tap water is used, the washing time ranges from 5 min to 10 min, in a 3# washing pond, pure water is used for carrying out immersing for three to five minutes, calcium carboxymethylcellulose is added in the purewater, the mass percent ranges from 2 to 6%, and after the calcium carboxymethylcellulose is completely dissolved in pure water, an air pipe is used for carrying out aeration for one to three minutes. The water washing method is simple, operation is easy, the floating powder on the surface of the negative plate obtained after water washing is reduced by about 47%, and the difficulty and the treatment cost of environment-friendly treatment of brush plates can be reduced.