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

The invention discloses a glue solution for surface treatment of a nickel-metal hydride (NI-MH) battery plate and a gum dipping device. The glue solution is prepared by mixing PTFE, SBR, CMC or HPMC with pure water according to a certain ratio; the gum dipping device comprises a gum dipping groove, a fixed shaft and a magnetic stirring apparatus; the magnetic stirring apparatus is arranged below the gum dipping groove; the rotator of the magnetic stirring apparatus is arranged at the bottom of the gum dipping groove; and the fixed shaft of one group of battery plates is arranged in the gum dipping groove. The glue solution in the invention can replace the glue solution used for the gum dipping of the positive and negative plates in the existing NI-MH battery dry process, can reduce the dusting powder on the surfaces of the positive and negative plates, improve the softness of the dried plates after being dipped, thereby effectively controlling the crack generated on the surface of the plates when the battery is wound, and stabilizing the battery performance and improving the service life of the battery.

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 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 belongs to the field of lead-acid batteries, and in particular relates to a process for rapid curing and drying of negative raw plates, which at least includes the following steps: (1) curing constant temperature and high humidity maintenance stage → (2) curing temperature rising and dehumidification stage → (3 ) Curing temperature rise and rapid dehumidification stage → (4) Drying temperature rise and rapid dehumidification stage → (5) Drying and high temperature rapid enhancement stage → (6) Drying and cooling rapid and stable stage. According to the green plate solidified and dried according to the procedure of the present invention, the basic lead carbonate content of the green plate increases, the drop strength of the green plate is further improved, the crispness of the lead paste is reduced after falling, and the amount of floating powder on the surface of the green plate is reduced; The improvement of the plate strength reduces the defect rate of the subsequent slicing and wrapping of the raw plate. Less floating powder reduces lead powder dust in the subsequent production process of the plate and reduces environmental pollution; the rapid curing and drying procedure can reduce the consumption of steam and electricity in the process, reduce the energy consumption of curing and drying, and reduce manufacturing costs.

The invention discloses a short fiber used for lead-acid storage battery plates. The short fiber comprises a plurality of organic fibers with a length of 6mm or shorter, and the single fiber fineness ranges from 0.15 to 0.8D. The short fiber is capable of increasing plate strength, reducing loss in production process, increasing active substance mechanical strength, preventing shedding, improving cycling performance, reducing generation of floating powder, increasing positive plate porosity, and increasing initial capacity.

The invention discloses a method for internalizing a power battery into a green electrode plate, which comprises the following steps: a soaking step for soaking the cured green electrode plate, at least including: a first soaking sub-step: soaking the cured green electrode plate The plate is soaked in dilute sulfuric acid electrolyte with colloidal silica added at a density of 1.05-1.20 g / ml; the second soaking sub-step: soaking the green electrode plate soaked in the first soaking sub-step in a density of 1.25-1.40 g / ml dilute sulfuric acid electrolyte with colloidal silica added; the drying step is used to dry the raw plate after soaking in the soaking step. The floating powder of the electrode plate treated by this method is obviously reduced, and the performance of the assembled battery is further improved.