Battery thermal runaway early warning method and device
An early warning device and thermal runaway technology, which is applied in the direction of testing and transportation of electrical devices, measuring devices, measuring electricity, etc., can solve problems such as inability to distinguish between battery thermal runaway faults, sensor electrical faults, and sampling line burnout, so as to reduce errors. Probability of false positives and false negatives, improved applicability, and improved reliability
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[0046] The following descriptions of various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented.
[0047] Please refer to figure 1 As shown, Embodiment 1 of the present invention provides a battery thermal runaway early warning method, including:
[0048] Step S1, calculating the leakage current of each single battery according to statistical data within a preset time range;
[0049] Step S2, collecting battery thermal runaway characteristic data in real time through the battery management system BMS, and obtaining a real-time diagnosis result of whether thermal runaway occurs according to the battery thermal runaway characteristic data;
[0050] Step S3, according to the relationship between the leakage current of each single battery and the diagnosis threshold, or according to the real-time diagnosis result, determine whether thermal runaway occurs, and give an early warning when it is determin...
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