Device for managing the breathability and pressure of a battery pack with safety discharge

EP4631131A1Pending Publication Date: 2025-10-15BONTAZ CENTRE
0 Cites 0 Cited by

Patent Information

Application Number
EP2023836895
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-12-09
Filing Date
2023-12-08
Publication Date
2025-10-15

AI Technical Summary

Technical Problem

Energy storage systems, particularly lithium-ion batteries, face challenges with thermal runaway, overpressure, and gas evacuation, requiring a system to manage respiration and pressure balance between the internal and external environments while ensuring safety and optimal operation across varying conditions.

Method used

A dual-envelope system with a breathing valve for gas exchange and an evacuation valve for pressure relief, allowing fluid communication between the internal and external environments, with sensors and actuators to manage thermodynamic parameters and prevent overpressure.

Benefits of technology

The system effectively balances internal and external pressures, prevents overpressure and thermal runaway, and ensures safe gas evacuation, enhancing the reliability and safety of energy storage devices in various applications.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to a device for storing electrochemical energy, for example a battery, for example a lithium-ion battery, comprising: - at least one first enclosure (11) containing one or more energy storage elements (7), for example one or more battery packs, this first enclosure comprising at least one first breathing element (12, 12a, 12b; 15, 15a, 15b); - at least one second enclosure (13) that is in fluid communication with the first enclosure and is provided with at least one second discharge element (15, 15a, 15b; 12, 12a, 12b).
Need to check novelty before this filing date? Find Prior Art