Electrode Imaging Device and Electrode Die-cutting System

By employing an electrode tab imaging device in the electrode die-cutting system, utilizing vertical material feeding of guide rollers and imaging with a backlight camera on a transparent plate, the problem of incomplete detection in existing technologies is solved, achieving higher detection accuracy and comprehensiveness, and ensuring that the electrode tab shape meets production requirements.

CN116140406BActive Publication Date: 2026-05-26BEIJING LUSTER LIGHTTECH
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Patent Information

Application Number
CN202211721693.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-30
Publication Date
2026-05-26
Estimated Expiration
2042-12-30

AI Technical Summary

Technical Problem

Existing electrode tab detection methods are not comprehensive and have low accuracy. They cannot effectively detect pinhole defects on the electrode sheet and avoid the impact of roller surface scratches on distance measurement.

Method used

By employing an electrode tab imaging device in the electrode die-cutting system, the electrode is made to move vertically using the first and second guide rollers, and imaging is performed when the electrode tab is vertical. The imaging is performed using a light-transmitting plate and a backlight in conjunction with a camera, eliminating the ranging deviation caused by contact between the electrode tab and the roller surface and sagging.

Benefits of technology

It enables more comprehensive defect detection, improves detection accuracy, avoids the impact of roller surface scratches on distance measurement, and ensures that the shape and size of the electrode tabs meet the production requirements of subsequent processes.

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Abstract

This application discloses an electrode tab imaging device and an electrode die-cutting system, belonging to the field of electrode die-cutting technology. The electrode tab imaging device includes: a first guide roller; a second guide roller disposed below the first guide roller, forming a vertically extending electrode feeding channel between the second guide roller and the first guide roller; and an imaging device disposed between the first guide roller and the second guide roller, which images the electrode tabs when the electrode tabs on both sides of the electrode are between the first guide roller and the second guide roller. According to the electrode tab imaging device of this application, by using the first guide roller and the second guide roller to make the electrode feed vertically, and then using the imaging device to image the vertical electrode between the first guide roller and the second guide roller, imaging is performed when the electrode tabs are vertical, avoiding contact between the electrode tabs and the roller surface. This enables the detection of pinhole defects and eliminates the ranging deviation caused by scratches on the roller surface. It also avoids the ranging deviation caused by electrode tab sagging, resulting in more comprehensive and accurate defect detection.
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