Battery bulge adaptive flexible two-phase liquid cooling thermal runaway early warning method and system

By collecting and processing data on the bonding status between the cold plate and the battery in real time, the abnormal battery bulging can be identified and adaptively controlled, solving the problem of heat conduction and early warning of the liquid cooling system under dynamic deformation conditions. This achieves efficient heat conduction and early warning of thermal runaway, improving the safety and stability of the battery.

CN121964962BActive Publication Date: 2026-07-03TIANJIN TIER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN TIER TECHNOLOGY CO LTD
Filing Date
2026-04-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing liquid cooling systems struggle to maintain efficient heat conduction and stable contact under dynamic deformation conditions such as battery bulging, and lack real-time sensing and proactive warning mechanisms, making it difficult to promptly suppress the risks of localized overheating and thermal runaway.

Method used

By collecting real-time data on the bonding status between the cold plate and the battery, using multiple types of sensors for data preprocessing, identifying abnormal bulging events, and performing adaptive flexible control, the liquid cooling thermal conductivity is evaluated, and thermal runaway early warning and intervention measures are implemented, including adjusting bonding pressure, structural deformation mode and heat conduction network, and integrating cold plate liquid cooling with phase change thermal storage materials for heat dissipation optimization.

Benefits of technology

It achieves highly sensitive, early identification and proactive intervention for battery bulging, dynamically repairs heat conduction paths, improves overall heat conduction efficiency and safety redundancy, enhances the ability to cope with large heat flux and extreme operating conditions, and realizes intelligent early warning and multi-level safety intervention for thermal runaway.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a battery bulging self-adaptive flexible two-phase liquid cooling thermal runaway early warning method and system, and relates to the technical field of battery liquid cooling heat dissipation. The method comprises the following steps: S1, collecting the data of the cold plate and the battery in real time and performing data preprocessing; S2, judging whether the battery is bulging or not, and identifying the bulging abnormal event; S3, for the bulging abnormal event, self-adaptive flexible regulation and control are performed on the battery bulging working condition; the liquid cooling heat conduction efficiency after the self-adaptive flexible regulation and control is evaluated, and the local heat conduction performance is optimized and adjusted; S4, after the local heat conduction performance optimization and adjustment are completed, the cooperative heat dissipation capacity margin is evaluated, and the liquid cooling thermal runaway early warning and the thermal runaway intervention measures are implemented. The method solves the problem that in the dynamic deformation working condition of battery bulging, the existing liquid cooling heat dissipation system is difficult to maintain efficient heat conduction and stable adhesion, lacks real-time sensing and active early warning mechanism, and the local overheating and thermal runaway risk are difficult to be inhibited in time.
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