Modular battery safety system

Through the modular battery safety system, the cell packs are isolated in separate zones, and multi-mode fire suppression and fault isolation are achieved. This solves the problems of thermal runaway propagation of power batteries, fire suppression reliability and cross-scenario adaptability, and ensures power supply continuity and environmental recyclability.

CN122418092APending Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-05-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing power batteries suffer from problems such as easy spread of thermal runaway, insufficient reliability of fire suppression, poor power supply continuity, difficulty in maintenance and recycling, and weak cross-scenario versatility, resulting in high risk of fire and explosion of the entire pack, low system integration, high maintenance costs, and poor cross-scenario adaptability.

Method used

The modular battery safety system includes an independent, enclosed compartment safety module, a fire extinguishing agent storage and delivery mechanism, a triple redundant fire extinguishing trigger mechanism, a multi-dimensional monitoring unit, an independent electrical cut-off mechanism for each module, and a quick-release and recycling structure, enabling the cell pack to be partitioned and isolated, with multiple fire extinguishing modes, fault isolation, and easy disassembly and assembly.

Benefits of technology

It effectively blocks the spread of thermal runaway, ensures reliable fire suppression under extreme conditions, guarantees power supply continuity, reduces maintenance costs, supports green recycling throughout its entire life cycle, and is suitable for a variety of application scenarios.

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Abstract

本发明公开一种模块化电池安全系统,属于动力电池安全技术领域。系统以独立封闭隔仓式安全模块为基础单元,可串并联扩展;模块内设阻火泄压结构、冷却器、灭火剂储仓及电芯上方多维度监测装置;灭火系统采用三重冗余触发:无源闭式喷淋热敏触发、BMS电控电磁阀触发及BMS电加热强制触发,任一触发即可灭火;灭火剂兼容全类型介质,无液冷场景依靠重力自流淹没电芯,有液冷场景采用冷却灭火一体化回路;故障模块可自动电气切除,保障系统不间断供电;模块采用快装结构,便于维护、拆装、梯次利用与环保回收。本发明实现热失控精准防控、极端工况可靠灭火、全场景兼容与全生命周期循环利用,适用于电动车辆、户用及工商业储能等场景。
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