Battery modules, battery packs containing them, and automobiles
The battery module with a fluid-filled compression member and protrusions addresses uneven thickness and thermal issues, extending lifespan and ensuring safety by uniformly pressurizing cells and suppressing thermal events.
JP2026519474APending Publication Date: 2026-06-16LG ENERGY SOLUTION LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2024-09-30
- Publication Date
- 2026-06-16
AI Technical Summary
Technical Problem
Conventional battery modules face issues with uneven thickness distribution among battery cells due to localized pressure application, leading to reduced lifespan and increased risk of thermal runaway, which can cause fires or explosions.
Method used
A battery module design incorporating a compression member filled with a movable fluid that deforms to uniformly pressurize battery cells and includes protrusions to manage thickness deviations, while also acting as a thermal barrier to suppress flames and gases during thermal events.
Benefits of technology
The solution extends battery cell lifespan by minimizing thickness deviations and effectively prevents or delays thermal runaway, enhancing safety and reliability by containing thermal events within the module.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026519474000001_ABST
Abstract
The present invention relates to a battery module comprising a plurality of battery cells and a compression member disposed between the plurality of battery cells, the compression member having a fluid movably filled inside and configured to be partially deformed by external pressure.
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