A plating cell for improving plating uniformity and a method of using the same

By combining components such as lifting motors, rotating motors, moving motors, and jet nozzles, the problems of uneven current density and anode mud suspension in the electroplating tank were solved, achieving uniform current distribution and high-quality coating in the electroplating tank, and improving the electroplating uniformity and pass rate of the electroplating tank.

CN122358291APending Publication Date: 2026-07-10镇江特安锂新能源有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
镇江特安锂新能源有限公司
Filing Date
2025-09-26
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional electroplating baths suffer from uneven current density, leading to inconsistent coating thickness. In particular, the coating may be too thick or too thin at the edges and center of the workpiece, affecting product yield and performance. Additionally, the suspension of anode mud results in a rough coating, and traditional stirring systems struggle to achieve uniform flow.

Method used

The design incorporates multiple components, including a telescopic rod controlled by a lifting motor, a rotating telescopic rod driven by a rotary motor, a moving support plate controlled by a moving motor, a shielding baffle made of insulating material, and multi-angle jet nozzles. Combined with an external circulating filter pump, it achieves uniform immersion, rotation, and optimized current distribution of the electroplated parts.

Benefits of technology

It significantly improved the uniformity of electroplating, reduced the coating thickness deviation to within 5%, increased the coating qualification rate to 98%, reduced coating defects, and improved product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an electroplating tank for improving electroplating uniformity and its usage method, including an electroplating tank body, an anode mounting assembly, an electroplating part carrying assembly, and a shielding baffle. The tank body is reinforced with staggered reinforcing plates. In the anode mounting assembly, an adapter rod rotates around a fixed base, and bolts allow for quick removal of the fixing rod. The anode basket is mounted on the fixing rod via a top lifting hole and covered with a hanging anode bag for easy assembly and disassembly. The lifting motor of the electroplating part carrying assembly controls the height of the carrying basket via a telescopic rod, ensuring the electroplated part is submerged and the distance between it and the anode is appropriate. A rotary motor drives the electroplated part to rotate slowly, avoiding localized current concentration. A moving motor fine-tunes the position to compensate for distance changes caused by anode consumption. The insulating shielding baffle is positioned via a T-shaped mounting slot, which can block and guide current concentration at the edges. Multi-angle jet nozzles on the bottom and side walls of the tank, equipped with a circulating filter pump, can eliminate electrolyte concentration gradients, filter impurities, reduce plating defects, and improve electroplating uniformity.
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