Diaphragm resin coating device and processing method

Abstract

The invention relates to a diaphragm resin coating device and a processing method, and the method comprises the following steps: placing resin and an organic solvent into a closed perfect mixing flow stirring machine for stirring so as to form spray-coating colloid after stirring for 2-5 hours, further adding solid substances with small grain diameter for preparing finished product glue, storing in a spray-coating material groove, enabling a diaphragm matrix to be expanded on a unreeling machine, pass through an A expansion roller, a drying box and a B expansion roller and then be wound on a reeling machine, fixing a spray head at the inlet of the drying box, enabling the finished product glue to pass through a feeder, a pipeline and the spray head, and quantitatively performing spray-coating on a diaphragm, wherein the position of the spray head is vertical to the running direction of the diaphragm; and further drying after spray-coating, using a water vapor generator to provide a heat source for the drying box, and finally cutting into a finished product. The method has the advantages that the microporous spray-coating technology is used, the finished product glue after concentration is directly spray-coated on the surface of the diaphragm through the microporous pump pressing technology, the full-closed production is realized, environmental pollution is avoided, the energy consumption and the cost are low, the product quality is stable, the efficiency is high, the operation is easy, and the maintenance is convenient.

Description

technical field [0001] The invention relates to a method for processing a diaphragm in an electrochemical power source, in particular to a diaphragm resin coating device and a processing method with low energy consumption, no pollution, high efficiency, easy maintenance and low cost. Background technique [0002] At present, electrochemical power sources have been widely used as energy storage electrical components. With the development of my country's power supply industry, the demand for electrochemical power sources is increasing, and its performance requirements are getting higher and higher. Because lithium-ion batteries have advantages incomparable to other power sources such as small size, light weight, high specific energy, high specific power, long life, and no pollution, it has been used in mobile phones, notebook computers, PDAs, solar power, hybrid power Automobiles, UPS, subways, elevators, robotic automation and other application fields; in recent years, the ba...

AI Technical Summary

Problems solved by technology

Because lithium-ion batteries have advantages incomparable to other power sources such as small size, light weight, high specific energy, high specific power, long life, and no pollution, it has been used in mobile phones, notebook computers, PDAs, solar power, hybrid power Automobiles, UPS, subways, elevators, robotic automation and other application fields; in recent years, the basic research and application development of lithium-ion batteries have undoubtedly become one of the international electrochemical research hotspots; but with the continuous development of lithium-ion batteries, some technical problems It has become a bottleneck restricting the development of lithium-ion battery manufacturing technology; these problems include: capacity increase, internal resistance reduction, cycle life increase, electrode material / electrolyte compatibility issues, etc.; currently, most lithium-ion batteries at home and abroad The products of the manufacturer are liquid soft-packed products, and domestic enterprises all use the dipping and hanging glue technology for production; the dipping technology is a technology 20 years ago, and it belongs to open production. It uses a lot of organic solvents and consumes a lot of energy for drying. , and the volatilization of organic solvents is very large, so the environmental pollution is serious, the cost is high, and the product quality is difficult to control, so it is difficult to ensure the consistency of product quality

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