Beschichtungsdüse und Elektrodenfolienbeschichtungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4714559

Anmeldetag

12. September 2023

Veröffentlichung

2. Januar 2025

Rechtsraum

EP

IPC

B05C5/02, H01M4/04

Abstract

Provided are a coating die head and a coating device for an electrode sheet. The coating die head is provided with a feeding port (111), a first flow equalizing cavity (11210), flow channels (11220), and a plurality of coating ports (1410); the first flow equalizing cavity (11210) extends in a first direction and is communicated with the feeding port (111); the plurality of coating ports (1410) are arranged at intervals in the first direction; and the flow channels (11220) are configured to communicate the first flow equalizing cavity (11210) with the plurality of coating ports (1410). Since the minimum cross-sectional areas of the flow channel (11220) between the plurality of coating ports (1410) and the first flow equalizing cavity (11210) are sequentially increased in the direction from the coating ports (1410) close to the feeding port (111) to the coating ports (1410) distant from the feeding port (111), the pressure lost by the slurry flowing to the coating ports (1410) distant from the feeding port (111) during the flow process is lower than the pressure lost by the slurry flowing to the coating ports (1410) close to the feeding port (111), thereby improving the uniformity of slurry coating in the coating process.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China

Fachgebiete