Abstract: A battery cell includes a battery cell body, at least two tabs, a first connector and at least two insulators. The first connector is configured to fasten a tail end of an electrode assembly to an outer surface of the battery cell body; the at least two tabs include a first tab and a second tab, and the at least two insulators include a first insulator and a second insulator, where first ends of the first insulator and the second insulator are all provided on the battery cell body, a second end of the first insulator covers part of the first tab, and a second end of the second insulator covers part of the second tab; and in a width direction of the battery cell body, the first insulator is provided close to the first connector, where at least part of the first insulator is located outside the first connector.

Abstract: A secondary battery includes an electrode assembly. Along a winding direction of the electrode assembly, a distance between a first winding start end of a first electrode plate and a first tab is L1, and a distance between a second winding start end of a second electrode plate and a second tab is L2, satisfying: 0.8?L1/L2?1.2. The first electrode plate includes a first blank foil region. The first blank foil region is a winding end section of the first electrode plate. The second electrode plate includes a second blank foil region. The second blank foil region is a winding end section of the second electrode plate. The first tab is connected to the first blank foil region, and the second tab is connected to the second blank foil region. A first insulation layer is provided on the first blank foil region.

Abstract: The present disclosure is related to systems and methods for motion correction. The method includes obtaining an original image including a motion artifact. The method includes obtaining a target motion correction model. The method includes generating a target image by removing the motion artifact from the original image using the target motion correction model.

Abstract: Systems and methods for motion artifact simulation are provided. The systems may obtain a target image including a target object. The systems may determine a plurality of sub-periods of a time period corresponding to the target image. The systems may determine a plurality of motion vector fields of the target object in the plurality of sub-periods. Each motion vector field of the plurality of motion vector fields may correspond to one of the plurality of sub-periods. The systems may determine a plurality of reconstruction images of the target object corresponding to the plurality of sub-periods based on projection data of the target image. Each reconstruction image of the plurality of reconstruction images may correspond to one of the plurality of sub-periods. The systems may generate a motion artifact simulation image of the target object based on the plurality of motion vector fields and the plurality of reconstruction images.

Abstract: An electrode assembly, including a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. A first tab formed by a plurality of first tab units and a second tab formed by a plurality of second tab units are disposed on the first electrode plate, and a third tab formed by a plurality of third tab units is disposed on the second electrode plate. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise.

Abstract: A battery cell includes a battery cell body, at least two tabs, a first connector and at least two insulators. The first connector is configured to fasten a tail end of an electrode assembly to an outer surface of the battery cell body; the at least two tabs include a first tab and a second tab, and the at least two insulators include a first insulator and a second insulator, where first ends of the first insulator and the second insulator are all provided on the battery cell body, a second end of the first insulator covers part of the first tab, and a second end of the second insulator covers part of the second tab; and in a width direction of the battery cell body, the first insulator is provided close to the first connector, where at least part of the first insulator is located outside the first connector.

Abstract: An electrode assembly, including a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. A first tab formed by a plurality of first tab units and a second tab formed by a plurality of second tab units are disposed on the first electrode plate, and a third tab formed by a plurality of third tab units is disposed on the second electrode plate. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise.

Abstract: Systems and methods for motion correction in medical imaging are provided in the present disclosure. The systems may obtain at least two image sequences relating to a subject. Each of the at least two image sequences may be reconstructed based on image data that is acquired by a medical imaging device during one of at least two time periods. The subject may undergo a physiological motion during the at least two time periods. The systems may generate, based on the at least two image sequences, at least one corrected image sequence relating to the subject by correcting, using a motion correction model, an artifact caused by the physiological motion.

Abstract: Systems and methods for image correction are provided. The systems and methods may obtain raw data of a target object. The systems and methods may determine, based on the raw data of the target object, a target phase. The systems and methods may generate a first image corresponding to the target phase. The systems and methods may determine, using a preset evaluation tool, an image quality evaluation result of the first image. In response to determining that the image quality evaluation result of the first image does not satisfy a preset condition, the systems and methods may generate a set of corrected raw sub-data of the target object corresponding to the target phase by correcting a set of raw sub-data of the target object corresponding to the target phase. The systems and methods may generate, based on the set of corrected raw sub-data of the target object, a corrected image corresponding to the first image.

Abstract: An electrode assembly, including a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. A first tab formed by a plurality of first tab units and a second tab formed by a plurality of second tab units are disposed on the first electrode plate, and a third tab formed by a plurality of third tab units is disposed on the second electrode plate. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise.

Abstract: The present disclosure relates to a method for image reconstruction, which includes obtaining original scanning data of an object, obtaining an initial image and an initial motion vector field of the object, and determining a target reconstructed image of the object based on the original scanning data, the initial image and the initial motion vector field by a plurality of iterations. The iterative result of at least one of the iterations is obtained based on a machine learning model.

Abstract: Systems and methods for motion correction in medical imaging are provided in the present disclosure. The systems may obtain at least two image sequences relating to a subject. Each of the at least two image sequences may be reconstructed based on image data that is acquired by a medical imaging device during one of at least two time periods. The subject may undergo a physiological motion during the at least two time periods. The systems may generate, based on the at least two image sequences, at least one corrected image sequence relating to the subject by correcting, using a motion correction model, an artifact caused by the physiological motion.

Abstract: Systems and methods for correcting motion artifacts in images are provided. The methods may include obtaining multiple preliminary images of a subject. Each of the multiple preliminary images may correspond to one of multiple phases of at least one motion cycle of the subject. The methods may also include determining an image representation of a target region of the subject in each preliminary image. The methods may also include identifying a target phase of the subject among the multiple phases of the at least one motion cycle based on the image representation of the target region in each preliminary image. The target phase and one or more neighboring phases of the target phase may correspond to a target motion status of the target region. The method may further include generating a secondary image of the subject corresponding to the target phase based on the target phase of the subject.

Abstract: An electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The separator is positioned between the first electrode plate and the second electrode plate. A first electrode plate and a second electrode plate are stacked. The electrode assembly further includes a first tab positioned on the first electrode plate, and a second tab and a third tab that are positioned on the second electrode plate. Projections of the first tab, the second tab, and the third tab on the first electrode plate do not overlap. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise. This application further provides a battery containing the electrode assembly.

Abstract: An electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. The electrode assembly further includes a first tab, a second tab, and a third tab. The first tab is disposed on the first electrode plate. The third tab and the second tab are disposed on the second electrode plate. In a thickness direction of the electrode assembly projections of the first tab, the second tab, and the third tab do not overlap. The electrode assembly is provided with a multi-tab structure, and uses a plurality of parallel-connected tabs to shunt a current to achieve purposes of enhancing a curent-carrying capacity of a battery and reducing a temperature rise. This application further provides a battery containing the electrode assemby.

Abstract: A battery cell includes an electrode assembly. A shape of a radial cross section of the electrode assembly is an ellipse. A length of a major axis noted as L1 and a length of a minor axis noted as L2 of the electrode assembly satisfy a relational expression: 0.3 mm?L1?L2?0.5 mm.

Abstract: An impact-proofed battery includes a packaging film, an electrode assembly received in the packaging film, tabs extending from an end portion of the electrode assembly, and insulating layers. Each tab includes a connecting region, a packaging region, and an exposed region connected in the order written. The connecting region is electrically connected to the electrode assembly, and the exposed region is exposed from the packaging film. Each insulating layer includes a packaging portion and a protective portion connecting to the packaging portion. The packaging portion covers the packaging region and is between the packaging film and the packaging region. The protective portion is between the connecting region and the packaging film, and an area of the protective portion is greater than an area of the connecting region. The disclosure also provides a device using the battery.

Abstract: An electrode assembly, including a first electrode plate, a second electrode plate, and a separator. The separator is disposed between the first electrode plate and the second electrode plate. The electrode assembly further includes a first tab disposed on the first electrode plate, and a second tab and a third tab that are disposed on the second electrode plate. Projections of the first tab, the second tab, and the third tab on the first electrode plate do not overlap. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise.

Abstract: An electrode assembly, including a first electrode plate, a second electrode plate, and a separator. The electrode assembly is formed by winding the first electrode plate, the separator, and the second electrode plate. A first tab formed by a plurality of first tab units and a second tab formed by a plurality of second tab units are disposed on the first electrode plate, and a third tab formed by a plurality of third tab units is disposed on the second electrode plate. The electrode assembly is provided with a multi-tab structure to achieve purposes of enhancing a current-carrying capacity of the battery and reducing a temperature rise.

Abstract: Systems and methods for motion correction in medical imaging are provided in the present disclosure. The systems may obtain at least two image sequences relating to a subject. Each of the at least two image sequences may be reconstructed based on image data that is acquired by a medical imaging device during one of at least two time periods. The subject may undergo a physiological motion during the at least two time periods. The systems may generate, based on the at least two image sequences, at least one corrected image sequence relating to the subject by correcting, using a motion correction model, an artifact caused by the physiological motion.