Abstract: This application provides a method, apparatus, and system for corner fold detection on a cathode electrode plate of a composite material strip, an electronic device, a laminator, a computer-readable storage medium, and a computer program product. The method includes: acquiring a to-be-inspected image of a composite material strip by using an image acquisition unit, where the to-be-inspected image includes an electrode plate body zone of the cathode electrode plate; extracting the electrode plate body zone from the to-be-inspected image; and performing corner fold detection on the electrode plate body zone. In the technical solutions of embodiments of this application, corner fold detection can be performed quickly and accurately on a cathode electrode plate of a composite material strip, thereby improving the production yield of laminated cell assemblies.

Abstract: A method for defect detection of a cathode electrode plate of a composite material strip includes obtaining a continuous image of the composite material strip; intercepting at least one image segment from the continuous image of the composite material strip, where the image segment includes a cathode electrode plate body region; and performing detection on the cathode electrode plate body region.

Abstract: Method, apparatus, and system for inspecting a cathode electrode plate of a composite material tape are provided. The method includes: using a camera apparatus to photograph a composite material tape being transported on a laminator to obtain an inspection image covering the composite material tape, where the inspection image includes a cathode electrode plate body region; extracting the cathode electrode plate body region from the inspection image; and inspecting the cathode electrode plate body region to determine a metal leakage defect existing in the cathode electrode plate body region. In the technical solution of the embodiments of this application, an inspection can be performed on a composite material tape being transported on a laminator, so that a metal leakage defect existing on a cathode electrode plate can be detected in real time in the production process of a laminated cell assembly.

Abstract: Disclosed are a method and an apparatus for detecting a tab. The method includes: determining that a first tab of a first electrode plate in a plurality of electrode plates of a first electrode assembly reaches a first position in an image collection area, wherein the plurality of electrode plates move toward the image collection area along a vertical direction; and collecting image information of the first tab, wherein the image information of the first tab is used to determine a state of the first tab. The tab detection method provided is able to completely detect the size and shape of the tab while avoiding adverse effects of the detection process on the state of the tab, so that the detection efficiency can be improved while improving the detection effect.

Abstract: Provided are a method and device for correcting positions of tabs of an electrode assembly. The electrode assembly includes anode electrode plates and cathode electrode plates stacked alternately in a first direction. The method includes: determining whether there are a plurality of consecutive tabs misaligned with each other in a first electrode plate assembly; and adjusting, if there are a plurality of consecutive tabs misaligned with each other, a cutting position of the first electrode plate assembly to adjust a width of first electrode plates obtained after cutting, such that tabs of a plurality of first electrode plates obtained after cutting the first electrode plate assembly are aligned with each other, the first electrode plates being anode electrode plates or cathode electrode plates.

Abstract: A dimension detection apparatus configured to detect a composite electrode plate. The composite electrode plate includes a plurality of continuous first electrode plates, a plurality of second electrode plates, and two insulators. The first electrode plates are of an opposite polarity to the second electrode plates. The plurality of first electrode plates are sandwiched between the two insulators and arranged in parallel along an extension direction of the insulators. The plurality of second electrode plates are arranged alternately on outer sides of the two insulators along the extension direction of the insulators, and correspond one-to-one to the plurality of first electrode plates. The dimension detection apparatus includes: two shooting assemblies, disposed on two sides of the composite electrode plate respectively along a thickness direction, and configured to photograph two adjacent second electrode plates respectively.

Abstract: This application provides a displacement detection method for anode composite strip. The anode composite strip includes an anode plate and a separator attached to a surface of the anode plate, where the anode plate includes positioning holes. The displacement detection method includes: step S1000: obtaining an image of a portion of the anode composite strip including the positioning holes; and step S2000: calculating a displacement characteristic quantity based on the image, where the displacement characteristic quantity includes any one or any combination of a width direction displacement, a strip movement direction displacement, and a displacement angle.

Abstract: This application provides a detection method for electrode plate, a detection apparatus for electrode plate, a stacking system, a detection device, and a computer-readable storage medium, where the electrode plate includes a coated portion and an uncoated portion located on at least one side of the coated portion in a longitudinal direction. The detection method includes: step S1000: obtaining dimensional parameters D1 . . . DN at different detection positions P1 . . . PN of the uncoated portion in a transverse direction perpendicular to the longitudinal direction; and step S2000: comparing the dimensional parameters D1 . . . DN with a dimensional detection standard S to determine whether the uncoated portion is folded, where N is a positive integer, and N is greater than or equal to 2.

Abstract: Method and apparatus for detecting a defect on an insulation coating on a battery electrode plate are disclosed. The method includes: obtaining an electrode plate image obtained by photographing an electrode plate, where the electrode plate image includes at least one complete electrode plate; determining an insulation coating region and a tab region in the electrode plate image; determining a defect detection region in the insulation coating region in the electrode plate image based on the insulation coating region and the tab region; and performing defect detection on the defect detection region to obtain a defect detection result. The method implements detection on the insulation coating on the electrode plate before combination, and can detect whether a defect exists in the insulation coating region.

Abstract: A dimension detection method for a battery composite surface includes: acquiring image information of a cathode sheet, the image information including an image of a first surface of the cathode sheet and an image of a second surface opposite to the first surface; acquiring image information of a composite sheet which includes a non-composite surface and a composite surface, the non-composite surface being formed by compounding the first surface of the cathode sheet, an anode, and a separator, the composite surface being formed by compounding the second surface of the cathode sheet, the anode, and the separator, and the image information of the composite sheet including image information of the non-composite surface; and calculating dimension information of the composite surface by an image processing algorithm, according to the image information of the cathode sheet and the image information of the composite sheet.

Abstract: A diaphragm detection method includes acquiring a target image of an electrode plate to be detected. The electrode plate to be detected includes an anode electrode plate and diaphragms respectively stacked on two sides of the anode electrode plate. The method further includes performing image processing on the target image to determine a target image region in the target image, and performing diaphragm misalignment detection on the electrode plate to be detected based on the target image region.

Abstract: A feeding device may include a first linear driving structure, a second linear driving structure, a delivery structure, and an adjusting structure, where the first linear driving structure may include a first output end configured to reciprocate in a first direction; the second linear driving structure may include a second output end configured to reciprocate in a second direction; one end of the delivery structure may be rotatably connected to the first output end around a first axis, the first axis being perpendicular to the first direction; and the adjusting structure may be configured to connect the other end of the delivery structure to the second output end, such that the delivery structure can be driven by the second output end to rotate around the first axis.

Abstract: A method, an apparatus, a device, a medium and a product for detecting alignment of battery electrode plates are provided. The method includes: obtaining depth distances of a target cross section of the battery electrode plates after lamination molding, wherein the target cross section is perpendicular to an electrode plate setting direction of the battery electrode plates, and the depth distances of the target cross section includes the depth distance corresponding to each of the electrode plates; and determining an alignment detection result of the battery electrode plates based on the depth distances of the target cross section. According to embodiments of the present application, the depth distances of the target cross section of the battery electrode plates can be obtained after lamination molding of the battery electrode plates, the depth distances of the target cross section may include the corresponding depth distance of each electrode plate.

Abstract: Embodiments of the present application provide an apparatus and a method for manufacturing an electrode assembly. The apparatus includes a driving portion, used for driving pole pieces to fall them from the driving portion; and a first support portion, arranged below the driving portion, and used for receiving the falling pole pieces, so that the pole pieces are stacked on the first support portion. The distance between an initial position of the upper surface of the first support portion and the driving portion being in a range of W to 2W. The initial position is the position of the upper surface of the first support portion when receiving the first pole piece of the electrode assembly, and W is the length of each pole piece. The apparatus can effectively stack the pole pieces to obtain an electrode assembly, and has high stacking efficiency.

Abstract: The present application relates to a heating device, and a battery manufacturing apparatus and method, and relates to the technical field of battery manufacturing. The heating device is configured to heat a material strip upstream of a first station, and may include: a support; a first heater movably mounted to the support; and a first driver mounted to the support and configured to drive the first heater to move in a feeding direction of the material strip, such that the first heater is movable between a first position close to the first station and a second position away from the first station.