Battery module with reinforced safety
The battery module design with inner and outer fireproof sheets and venting mechanisms addresses thermal runaway issues by managing gas discharge and preventing flame propagation, ensuring safety in battery modules and packs.
KR1020260112933APending Publication Date: 2026-07-21LG ENERGY SOLUTION LTD
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Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Applications
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2026-06-30
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Thermal runaway events in battery modules or packs can lead to venting gas generation, which if not properly managed, can cause explosions and propagate thermal runaway between cells or modules, posing a significant safety risk due to high temperatures and flames.
Method used
A battery module design featuring a cell assembly housed in a module case with an inner and outer fireproof sheet, including venting holes and sections that manage gas discharge and prevent flame propagation, using materials like mica to withstand high temperatures.
Benefits of technology
The design effectively suppresses thermal runaway propagation by smoothly discharging high-temperature gas and flames, preventing module collapse and controlling chain reactions between modules, enhancing safety.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure PAT00002_ABST
Abstract
A battery module according to one embodiment of the present invention comprises a cell assembly having a plurality of battery cells, a module case housing the cell assembly in an internal space and having a venting hole formed therein, an inner fireproof sheet interposed between the module case and the cell assembly, and an outer fireproof sheet configured to cover at least the portion having the venting hole formed therein on the outer side of the module case.
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