DEVICE FOR TESTING WELD SEAMS ON BATTERY MODULES

DE602022032306T2Active Publication Date: 2026-03-11LG ENERGY SOLUTION LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-08-26
Publication Date
2026-03-11

AI Technical Summary

Technical Problem

Conventional methods for detecting welding defects in battery modules require large-capacity chargers/dischargers and lengthy charging and discharging processes, making them inefficient and economically burdensome, especially with increasing battery capacities.

Method used

A welding inspection apparatus that applies alternating current to battery modules using a smaller capacity equipment, measuring impedance and resistance values to rapidly detect defects by analyzing the real part of impedance using a high-frequency band.

Benefits of technology

Reduces the need for large-capacity chargers/dischargers and significantly shortens detection time while enabling precise identification of welding defects within battery modules.

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