Battery cell isolation means, battery module and motor vehicle separating each two adjacent battery cells

By using a combination of incompressible frame units and deformable compression elements in the cell isolation device, the protection problem of the cell under mechanical load and expansion force is solved, achieving stable cell positioning and thermal insulation, and improving the service life and safety of the battery module.

CN115939615BActive Publication Date: 2026-07-17AUDI AG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AUDI AG
Filing Date
2022-10-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing cell isolation devices cannot effectively protect the cells under mechanical loads and expansion forces, and cannot simultaneously achieve thermal insulation and stable positioning, resulting in a shortened battery module lifespan.

Method used

An incompressible frame unit surrounds a deformable compression element. The frame unit bears the mechanical load, while the compression element absorbs the expansion force and provides thermal insulation, ensuring accurate cell positioning.

Benefits of technology

It improves the stability and lifespan of the battery cells, prevents heat transfer, ensures that the battery cells do not detach from their positions under mechanical loads, and enhances the overall stability of the battery module.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a cell separator (30) for separating each two adjacent cells (20) in a battery module (10). The cell separator (30) comprises a non-compressible frame unit (37) and a deformable compression element (33) enclosed by the frame unit (37). For enclosing the compression element (33), the frame unit (37) comprises a first frame element (31) and a second frame element (32) between which the compression element (33) with a predetermined edge region (34) is arranged.
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