Apparatus for coating both sides of secondary battery electrode material, having variable power transmission module

The double-sided coating device with a variable power transmission module addresses misalignment issues in secondary battery electrode manufacturing, ensuring stable power transmission and improved coating quality by adjusting the rolling roll gap, thus enhancing the reliability and speed of the process.

WO2026117104A1PCT designated stage Publication Date: 2026-06-04PEOPLE & TECH INC

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
PEOPLE & TECH INC
Filing Date
2025-11-29
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing dry manufacturing methods for secondary battery electrodes face issues such as pinholes and cracks during the drying process, and powder flotation due to solvent evaporation, leading to degraded electrode quality, while existing solutions do not effectively address the misalignment of rolling rolls and the power required to adjust their gaps.

Method used

A double-sided coating device equipped with a variable power transmission module that includes a motor, rolling rolls, and a variable power transmission mechanism, such as an offset coupling or double Cardan joint, to stabilize power transmission and adjust the rolling roll gap, even when the rotation centers are misaligned.

Benefits of technology

The device reduces the power required to adjust the rolling roll gap and ensures continuous operation, improving the reliability and speed of the coating process, thereby enhancing electrode quality and simplifying maintenance.

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Abstract

An apparatus for coating both sides of a secondary battery electrode material, having a variable power transmission module, of the present invention applies a variable power transmission module so as to reduce the power required for adjusting a gap between rolling rolls, and enables normal operation even if the centers of rotation of the rolling roll and a motor are not aligned.
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