Battery cell provided with a degassing device
EP4659308A1Pending Publication Date: 2025-12-10VERKOR SA
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Patent Information
- Application Number
- EP2025720167
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-24
- Filing Date
- 2025-04-16
- Publication Date
- 2025-12-10
AI Technical Summary
Technical Problem
Existing degassing devices in battery cells frequently break, rendering the cell or module unusable, leading to performance decline or complete unusability of electric vehicles.
Method used
A dual-membrane degassing system with flexible and porous membranes, separated by a buffer volume, ensures robustness and longevity by allowing one membrane to deform while the other remains functional, maintaining safety and functionality.
Benefits of technology
The dual-membrane system enhances cell reliability and safety by preventing frequent breakdowns, ensuring optimal degassing management and prolonged cell lifespan.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure IB2025054008_30102025_PF_FP_ABST
Abstract
The invention relates to an electric cell (1) for an electrically-driven vehicle, the cell (1) comprising: - a housing (3) defining an interior volume (4) containing an electrolyte; and - at least one stack of electrodes comprising a plurality of electrodes separated from one another by a porous separator film, the at least one stack of electrodes being arranged in the housing (3), the cell (1) comprising a degassing device (2) arranged on the housing (3), which degassing device (2) comprises: - a first porous membrane located on the interior volume (4) side of the housing (3); and - a second porous membrane (6) that is separate from the first membrane and that is arranged facing the first membrane, the first membrane and second membrane (6) being arranged at a distance from one another.
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