热失控的防护系统、防护方法及电池模组

By incorporating a pressure monitoring module and a flame-retardant module within the battery module, and combining these with a control module to identify the direction of thermal runaway propagation and spray flame-retardant media, the problem of insufficient thermal runaway propagation identification in existing technologies is solved, achieving effective flame retardancy against thermal runaway.

CN122118143BActive Publication Date: 2026-07-17ZHEJIANG JINKO ENERGY STORAGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG JINKO ENERGY STORAGE CO LTD
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, when a battery module experiences thermal runaway, temperature sensors or smoke sensors struggle to identify the spread of the runaway, resulting in a lack of targeted control in the fire protection system and making it difficult to effectively extinguish the flame.

Method used

A pressure monitoring module is installed inside the battery module. By monitoring the pressure signals at both ends of the cell stack, combined with the flame retardant module and control module, the direction of thermal runaway propagation is identified, and the flame retardant medium is controlled to be sprayed in the corresponding direction for flame retardancy.

Benefits of technology

It enables accurate identification and effective flame retardation of thermal runaway propagation, improves the targeting of fire protection systems, and reduces the risk of thermal runaway spread.

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Abstract

本申请涉及一种热失控的防护系统、防护方法及电池模组。该防护系统包括:压力监测模块,设置于电池模块内,用于监测电芯堆叠体在第一方向上的两端的压力信号;阻燃模块,包括多个喷射支路,不同的喷射支路分别对应于电芯堆叠体中不同的电芯区域设置;阻燃模块用于在发生热失控的情况下通过喷射支路向电芯区域喷射阻燃介质;控制模块,分别连接压力监测模块和阻燃模块;控制模块被配置为:在根据压力信号确定电芯堆叠体发生热失控的情况下,根据压力信号确定热失控的蔓延方向,根据蔓延方向控制阻燃模块中对应的喷射支路开启,以对蔓延方向上的电芯区域进行阻燃。通过该技术方案,实现对热失控的蔓延情况的识别,对蔓延的热失控进行有效阻燃。
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