Lithium battery fault detection system

Abstract

The invention, which relates to the technical field of battery fault detection, discloses a lithium battery fault detection system comprising a magnetic field sensor, a data acquisition and processing module, a magnetic field imaging unit and a fault diagnosis and positioning module. The magnetic field sensor is provided with a high-precision magnetic field sensor array around the outside of the lithium battery according to the size and the shape of the lithium battery, the three-dimensional image of the magnetic field in the lithium battery can be visually displayed by using the magnetic field imaging technology, and the details of the distribution of the magnetic field in the battery are revealed; by comparing and analyzing the magnetic field image and the preset fault feature library, the system can automatically identify and judge the fault type and accurately position the fault position according to the abnormal area in the magnetic field image, and the high-precision positioning capability enables technicians to quickly and accurately know the condition of the internal fault of the battery, so that the fault detection accuracy is improved. And powerful support is provided for subsequent fault processing and maintenance.

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