Battery wetting state detection method and apparatus, device, system, and medium

A battery wetting state detection apparatus, the apparatus comprising:

• obtaining circuitry configured to obtain a plurality of three-dimensional tomographic battery cell images and a three-dimensional tomographic image of a battery through neutron imaging;
• and
• determining circuitry configured to:
• determine the plurality of three-dimensional tomographic battery cell images are from a plurality of battery cells having different electrolyte injection volumes;
• determine battery wetting state detection of the battery wetting state detection apparatus is feasible in response to the plurality of three-dimensional tomographic battery cell images being all different based on the different electrolyte injection volumes;
• determine a wet region of the battery based on the three-dimensional tomographic image by:
• enhancing the three-dimensional tomographic image to obtain a first intermediate image;
• denoising the first intermediate image to obtain a second intermediate image;
• and
• filtering the second intermediate image to obtain the wet region of the battery;
• determine a wet area percentage based on a ratio of the wet region to a theoretical wet region;
• and
• determine a wetting state of the battery based on the wet area percentage, the determining of the wetting state of the battery comprises:
• determine, in response to the wet area percentage being less than a wet area threshold, that the wetting state of the battery is unqualified;
• and
• determine, in response to the wet area percentage being greater than or equal to the wet area threshold, that the wetting state of the battery is qualified.

An electronic device, the electronic device comprising:

• at least one processor;
• and
• a memory communicatively connected to the at least one processor;
• wherein
• the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform a battery wetting state detection method, the method comprising:
• obtaining a plurality of three-dimensional tomographic battery cell images;
• determining the plurality of three-dimensional tomographic battery cell images are from a plurality of battery cells having different electrolyte injection volumes;
• determining the battery wetting state detection method is feasible in response to the plurality of three-dimensional tomographic battery cell images being all different based on the different electrolyte injection volumes;
• obtaining a three-dimensional tomographic image of a battery from obtaining circuitry configured to obtain the three-dimensional tomographic image through neutron imaging;
• and
• determining a wet region of the battery based on the three-dimensional tomographic image, the determining of the wet region of the battery comprises:
• enhancing the three-dimensional tomographic image to obtain a first intermediate image;
• denoising the first intermediate image to obtain a second intermediate image;
• and
• filtering the second intermediate image to obtain the wet region of the battery;
• determining a wet area percentage based on a ratio of the wet region to a theoretical wet region;
• and
• determining a wetting state of the battery from determining circuitry configured to determine the wetting state of the battery based on the wet area percentage, the determining of the wetting state of the battery comprises:
• determining, in response to the wet area percentage being less than a wet area threshold, that the wetting state of the battery is unqualified;
• and
• determining, in response to the wet area percentage being greater than or equal to the wet area threshold, that the wetting state of the battery is qualified.