Pole piece folding detection method and device, detection equipment and storage medium

A detection method and pole piece technology, applied in neural learning methods, image data processing, image enhancement, etc., can solve the problems of low detection efficiency, poor accuracy, waste of manpower and material resources, etc., to reduce detection costs, improve overall quality, The effect of improving detection efficiency

Pending Publication Date: 2022-01-25
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Application Information

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Problems solved by technology

[0004] In related technologies, it is usually manually detected whether there is a folded pole piece in the electrode group of the battery core. However, the method of manually detecting the pole piece turned over not only wastes a lot of manpower and material resou

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  • Pole piece folding detection method and device, detection equipment and storage medium
  • Pole piece folding detection method and device, detection equipment and storage medium
  • Pole piece folding detection method and device, detection equipment and storage medium

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Embodiment Construction

[0057] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0058] With the improvement of consumption level and the improvement of people's awareness of environmental protection, electric vehicles powered by lithium-ion batteries have begun to be widely used. The power battery pack of an electric vehicle is composed of a single battery, and a single battery is composed of several battery cell pole groups. During the production process of each battery cell pole group, taking the stacking process as an example, it is necessary to detect each of the battery cell pole groups. Whether the state of the pole piece meets the process standard, if the state of the pole piece is turned over is a substandard product, it needs to be detected in time and scrapped.

[0059] In the related art, X-ray rays are used to image the four corners of the battery pole group when detecting t...

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Abstract

The invention relates to the technical field of batteries, in particular to a pole piece turnover detection method and device, detection equipment and a storage medium, and the pole piece turnover detection method of a battery cell pole group comprises the following steps: collecting an actual pole piece image of the battery cell pole group; inputting the actual pole piece image into a pre-trained pole piece turnover prediction model to obtain a plurality of initial prediction frames in the actual pole piece image, and determining a final prediction frame corresponding to each pole piece of the battery cell pole group according to the non-maximum suppression score of each initial prediction frame; and calculating the confidence value of the final prediction frame corresponding to each pole piece, identifying the category of the final prediction frame corresponding to each pole piece, and detecting a folded pole piece in the battery cell pole group when the confidence value is greater than or equal to a preset threshold value and the category is a folded category. The method can automatically and accurately detect the folded pole piece in the battery cell pole group, improves the detection efficiency, reduces the detection cost, and improves the overall quality of a product.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method, a device, a detection device and a storage medium for detecting pole piece folding. Background technique [0002] Power battery is the core component of electric vehicles. If the power battery is unqualified, it will directly affect the performance and driving safety of electric vehicles. Therefore, the detection of power batteries before leaving the factory is very important. [0003] Among them, the pole piece turning detection is one of the important detections of the power battery detection, because the power battery pack is composed of a single battery, and a single battery is composed of several battery cell pole groups, and each battery cell pole group is in the production process. Lamination technology is usually used, so it is necessary to detect whether the state of each pole piece in the battery pole group meets the process standard, that is, to detect whet...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06V10/764G06V10/762G06V10/774G06K9/62G06N3/04G06N3/08
CPCG06T7/0008G06N3/08G06T2207/20081G06N3/045G06F18/23213G06F18/24G06F18/214
Inventor 吴德刚张建强梅锦江
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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