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

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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