Gas detection apparatus and gas detection method for a battery cell module assembly

By designing gas detection equipment and methods, and utilizing gas detection chambers, sensors, and flow units, the problem of rapid detection of damaged casings in battery cell module assemblies was solved, enabling accurate sorting and replacement of damaged battery cells and reducing the defect rate.

CN115398195BActive Publication Date: 2026-03-17LG ENERGY SOLUTION LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-29
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to accurately and quickly detect and sort out battery cells with damaged casings during the manufacturing process of battery cell modules, especially defects such as tears or cracks in pouch-type lithium polymer secondary battery cells.

Method used

A gas detection device is designed, including a gas detection chamber unit, a sliding support unit, a gas sensor unit, a gas flow unit, and a compression unit. By placing the battery cell module assembly in the gas detection chamber, the gas sensor is used to detect leaked gas. Combined with the compression and gas flow units, rapid detection of battery cells can be achieved.

Benefits of technology

It can accurately and quickly detect damaged battery cells and their locations in battery cell module assemblies, thus reducing the defect rate of battery cell module assemblies.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a gas detection device (10) for a battery cell module assembly, wherein the gas detection device (10) accurately and quickly detects damaged battery cells and the location of damage to the battery cells in the battery cell module assembly. A battery cell module assembly gas detection device (10) including a gas sensor section (130) is provided, comprising: a gas detection chamber section (110) receiving the battery cell module assembly; and a sliding support section (120), wherein the battery cell module assembly (100) can be positioned at its upper end and moved to the lower part of the gas detection chamber section (110), wherein a plurality of gas detectors for each battery cell location of the battery cell module assembly are provided in the gas detection chamber section (110). Furthermore, a method for gas detection of a battery cell module assembly using the gas detection device is provided.
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Citation Information

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