Coating head and coating machine

By introducing a barrier structure into the coating head to divide the coating head cavity into first and second cavities, the problem of insulating adhesive overflow in solid-state battery manufacturing is solved, ensuring coating accuracy and electrode yield.

CN224346242UActive Publication Date: 2026-06-12SUZHOU QINGTAO NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU QINGTAO NEW ENERGY TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

During the manufacturing process of solid-state batteries, the high viscosity and density of the insulating adhesive during coating can cause it to overflow from the outlet after the pumping unit is shut down. This results in the coating area exceeding the preset area, forming a trail, which affects the quality and efficiency of electrode manufacturing.

Method used

Design a coating head comprising a first cover, a second cover, and a barrier structure, dividing it into a first cavity and a second cavity. After the pumping assembly is turned off, the barrier structure supports and holds the slurry in the first cavity to prevent overflow.

Benefits of technology

This effectively prevents the slurry from overflowing from the liquid outlet slit, ensuring the accuracy of electrode coating and the manufacturing qualification rate, and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to battery manufacturing technical field discloses a kind of coating head and coating machine. Coating machine includes coating head and pumping assembly, and coating head includes first cover body, second cover body and barrier structure, and first cover body and second cover body buckle and surround and form cavity, cavity has liquid inlet and liquid outlet slit, barrier structure is arranged in cavity and separates cavity into first cavity and second cavity being interconnected, liquid inlet is communicated with first cavity, and second cavity is below first cavity, and liquid outlet slit is located in the lower end of second cavity and is communicated with second cavity. After pumping assembly is closed, barrier structure can support part of slurry, avoid slurry from lower end of liquid outlet slit overflow due to excessive weight, avoid the problem of tailing when coating.
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