Foam aluminum pole piece coating equipment and pole piece production method using the same

Abstract

The present application provides foamed aluminum pole piece coating equipment and a pole piece production method using the same. The foamed aluminum pole piece coating equipment includes: a slurry pool, including a squeeze roller, the slurry pool is formed with a first cavity, the squeeze roll is arranged in the first cavity containing the slurry, and the squeeze roll includes a roller The blade and the blade connected to the roller are formed by protruding toward the outside of the roller, and the squeeze roller is used to guide the slurry to the aluminum foam pole piece by rotating the blade; the scraper mechanism includes the first scraper and the second scraper arranged at intervals Two scrapers, the first scraper and the second scraper are equipped with a comb-like tooth structure, the comb-like tooth structure is used to scrape off part of the slurry on the surface of the foamed aluminum; the driving mechanism is located on the scraper mechanism away from the slurry pool One side is used to drive the displacement of the aluminum foam pole piece relative to the scraper mechanism and the slurry pool. The foamed aluminum pole piece coating equipment can ensure that the slurry in the foamed aluminum is filled densely, and can also realize functions such as automatic coating, scraping off excess slurry, standing to dry, and accurately controlling the thickness of the pole piece.

Description

technical field [0001] The present application relates to the field of new energy, in particular to a foamed aluminum pole piece coating equipment and a pole piece production method using the same. Background technique [0002] The capacitive carbon carrier material used in mainstream supercapacitors is aluminum foil. However, due to the limitation of the coating thickness of the aluminum foil and the amount of carbon loaded on the aluminum foil, the bottleneck of the voltage window of the supercapacitor cannot be broken through. Therefore, the three-dimensional porous current collector has become a new development research trend in the industry. However, the foamed aluminum three-dimensional current collector is different from the conventional aluminum foil coating method. Its tension and winding performance are far inferior to aluminum foil, and the permeability of the coating And uniformity requirements are high, and the conventional aluminum foil coating method cannot b...

AI Technical Summary

Problems solved by technology

This process is suitable for continuous winding aluminum foil, but if the three-dimensional through-hole foamed aluminum adopts this process, the coating slurry will pass through the foamed aluminum to cause a large amount of material leakage during the coating process, resulting in waste of materials and high production costs; and, The aluminum foam pole piece has a three-dimensional structure, and the slurry needs to be evenly filled in the three-dimensional structure. Single-sided extrusion coating will cause uneven thickness of the slurry on both sides of the pole piece, which will affect the yield of the pole piece

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