METHOD, APPARATUS, DEVICE, AND MEDIUM FOR DETECTING QUALIFIED RATE OF BATTERY ELECTRODE SHEET

1 . A method for detecting a qualified rate of a battery electrode sheet, comprising:

collecting a first weight corresponding to a to-be-detected electrode sheet;

drying the to-be-detected electrode sheet in a drying apparatus for a preset duration and collecting a second weight corresponding to the dried to-be-detected electrode sheet; and

determining a detection result of the to-be-detected electrode sheet based on a ratio of a drying difference to the second weight, wherein the drying difference is a difference between the first weight and the second weight.

2 . The method according to claim 1 , further comprising, before drying the to-be-detected electrode sheet in the drying apparatus for the preset duration:

acquiring a preset drying time association table; and

selecting the preset duration matching the first weight based on the drying time association table.

3 . The method according to claim 1 ,

wherein the to-be-detected electrode sheet is one of one or more to-be-detected electrode sheets;

the method further comprising, before drying the one or more to-be-detected electrode sheets in the drying apparatus for the preset duration:

acquiring a preset drying time association table; and

determining a number of the one or more to-be-detected electrode sheets, and selecting the preset duration matching the number based on the drying time association table.

4 . The method according to claim 1 , wherein determining the detection result of the to-be-detected electrode sheet based on the ratio of the drying difference to the second weight comprises:

determining a material attribute of the to-be-detected electrode sheet, and selecting a preset ratio range matching the material attribute; and

determining the detection result of the to-be-detected electrode sheet based on a size relationship between the ratio of the drying difference to the second weight and the preset ratio range.

5 . The method according to claim 1 , wherein determining the material attribute of the to-be-detected electrode sheet, and selecting the preset ratio range matching the material attribute comprise:

determining historical storage information of the to-be-detected electrode sheet, wherein the historical storage information comprises a historical storage environment and a historical storage duration; and

selecting the preset ratio range matching the material attribute based on the historical storage information.

6 . The method according to claim 5 , further comprising, after selecting the preset ratio range matching the material attribute:

determining that the detection result of the to-be-detected electrode sheet is qualified in response to detecting that the ratio of the drying difference to the second weight is within the preset ratio range; and

determining that the detection result of the to-be-detected electrode sheet is unqualified in response to detecting that the ratio of the drying difference to the second weight is beyond the preset ratio range.

7 . The method according to claim 1 , further comprising, after collecting the first weight corresponding to the to-be-detected electrode sheet:

determining whether the first weight corresponding to the to-be-detected electrode sheet is within a preset weight range;

wherein drying the to-be-detected electrode sheet in the drying apparatus for the preset duration comprises drying the to-be-detected electrode sheet in the drying apparatus for the preset duration in response to the first weight corresponding to the to-be-detected electrode sheet being within the preset weight range.

8 . The method according to claim 1 , further comprising, before collecting the first weight corresponding to the to-be-detected electrode sheet:

acquiring an electrode sheet image corresponding to the to-be-detected electrode sheet, and inputting the electrode sheet image into an image detection model; and

recognizing a color feature and a brightness feature corresponding to the electrode sheet image using the image detection model;

wherein drying the to-be-detected electrode sheet in the drying apparatus for the preset duration comprises drying the to-be-detected electrode sheet in the drying apparatus for the preset duration in response to detecting that the color feature and the brightness feature satisfying a preset condition.

9 . The method according to claim 1 , further comprising, after determining the detection result of the to-be-detected electrode sheet based on the ratio of the drying difference to the second weight:

establishing a mapping relationship between the to-be-detected electrode sheet, the corresponding detection result, and a corresponding separator identifier, and storing the mapping relationship in a preset storage area; and

receiving a collection instruction sent from a battery detection system, extracting the mapping relationship from the storage area, and sending the mapping relationship to the battery detection system.

10 . An electronic device, comprising:

a memory storing executable instructions; and

a processor configured to execute the executable instructions to implement the method according to claim 1 .

11 . A computer-readable storage medium, storing computer-readable instructions, wherein the instructions, when executed, implement the method according to claim 1 .

12 . An apparatus for detecting a qualified rate of a battery electrode sheet, comprising:

a collection module configured to collect a first weight corresponding to a to-be-detected electrode sheet;

a processing module configured to dry the to-be-detected electrode sheet in a drying apparatus for a preset duration and collect a second weight corresponding to the dried to-be-detected electrode sheet; and

a determination module configured to determine a detection result of the to-be-detected electrode sheet based on a ratio of a drying difference to the second weight, wherein the drying difference is a difference between the first weight and the second weight.