| 摘要 |
A spray nozzle of a drying device is provided to prevent the edges of articles to be dried from being excessively dried or overheated by passing the fluid sprayed through a spraying through-hole through the center of the article and to improve the article drying efficiency by directly sucking and removing a solvent of the article. The spray nozzle(100) of a drying device drying articles by spraying fluid on the articles is composed of a body(110) of the predetermined size; spraying through-holes(120) bored through both sides of the body in a vertical direction to spray the fluid to the outside; and a suction through-hole(130) vertically bored between the spraying through-holes to suck in a solvent of the articles. The fluid is the air or gas. The article to be dried is a polar plate(210) for a secondary battery coated with an active material(220).
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