Trimming and stripping system for manufacturing dry electrodes

The described system addresses quality issues in electrode film fabrication by precisely trimming and patterning dry electrode films, enhancing film quality and enabling scrap recycling.

JP2026086382APending Publication Date: 2026-05-26TESLA INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TESLA INC
Filing Date
2025-11-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Conventional wet electrode processes for fabricating electrode films result in quality issues such as inconsistent surface finish, thickness, and edge quality, while dry electrode processes lack effective patterning systems.

Method used

A system and method for trimming and patterning dry electrode films using a calender roll apparatus, incorporating cutting and material removal devices to produce clean-edged, patterned films, with scrap material recycling capabilities.

Benefits of technology

The system ensures precise alignment and patterning of dry electrode films on current collectors, improving film quality and reducing the need for precise positioning of adhesive layers, while enabling efficient recycling of scrap materials.

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Abstract

The present invention provides a method, system, and module for manufacturing dry electrode films, as well as a module for modifying dry electrode films. [Solution] One or more aspects of the present disclosure relate to systems, methods, and devices for trimming and peeling electrode films. The system can be integrated into a calendering system and can produce multi-lane films having clean edge quality for lamination. The system may include a trimming device including a cutting device and a material removal device located downstream of the cutting device, the material removal device including a scraper element, a support element located upstream of the scraper element, and a vacuum element.
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