CATL Patente

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Disclosed in the present application are a weld seam height measurement method and apparatus, and an electronic device and a readable storage medium. The weld seam height measurement method comprises: acquiring a target depth image of a weld seam in a battery cell, wherein the battery cell comprises a top cover and a casing that are adjacent, and the weld seam is located between the top cover and the casing; on the basis of the target depth image, determining position information of the casing corresponding to a target plane in a preset three-dimensional coordinate system; and on the basis of position information of each first target pixel point in the target depth image in the preset three-dimensional coordinate system and the position information of the target plane, determining the height of the weld seam, wherein the first target pixel points are pixel points corresponding to a weld seam area in the target depth image.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

The present application is applicable to the technical field of battery production devices, and provides a winding device and a battery manufacturing device. The winding device (100) comprises: a laminating mechanism (10) used for unwinding a first electrode sheet (210), a first separator (220), and a second electrode sheet (230), and pressing the first electrode sheet (210), the first separator (220), and the second electrode sheet (230) to form a compounding sheet (250); a separator unwinding mechanism (20) used for unwinding a second separator (240); and a winding mechanism (30) provided on a discharging side of the laminating mechanism (10), the winding mechanism (30) being used for winding the compounding sheet (250) and the second separator (240) to form an electrode assembly (200). The winding device provided by the embodiments of the present application has reasonable layout, and the problem of the crowded space above the winding mechanism is solved.

The present application discloses an electrode manufacturing method, a battery, and an electrical apparatus. The electrode manufacturing method comprises steps of: providing a slurry mixed with a pore-forming agent; coating the slurry on a current collector to form an active material layer on the current collector; and electrically energizing the active material layer to cause the pore-forming agent in the active material layer to undergo an electrochemical reaction to form pores. Before the step of coating the slurry on the current collector, the method further comprises a step of: providing a roller configured to coat and convey the current collector and provided with a conductive member on a surface of the roller, the conductive member being configured to electrically connect to the current collector. The step of electrically energizing the active material layer comprises electrically energizing the current collector through the conductive member. The technical solutions provided in the present application can improve the pore-forming efficiency of the electrode, thereby enabling, when the electrode is used in the battery, the battery to have relatively high manufacturing efficiency.

The present application belongs to the technical field of batteries. Provided are a control system and method for battery cell welding using an adapter piece. The control system comprises: a first feeding apparatus, which is used for conveying a first top cover to a first pick-up position; a second feeding apparatus, which is used for conveying a second top cover to the first pick-up position during the process of the first feeding apparatus returning to a feeding position; a third feeding apparatus, which is used for conveying a first battery cell and a second battery cell to a second pick-up position; a conveying apparatus, which is used for conveying the first top cover, the second top cover, the first battery cell and the second battery cell to a welding apparatus; and the welding apparatus, which is used for welding the first top cover to the first battery cell and welding the second top cover to the second battery cell. In the present application, the control system realizes uninterrupted continuous feeding by means of two groups of feeding apparatuses, thereby shortening the waiting time for the feeding of top covers, and increasing the efficiency of a production line.

Zusammenfassung wird geladen …

Provided are a coating die and a coating device. The coating die includes a die body (10) and a pressure adjustment component (20). The die body is provided with a feed port (K1) and a discharge port (K2) that are opposite. The die body includes a first accommodating cavity (11) and a second accommodating cavity (12) that communicate with each other. The first accommodating cavity is located on a side of the second accommodating cavity close to the feed port in a first direction (X) and communicates with the feed port. The second accommodating cavity communicates with the discharge port. The pressure adjustment component is accommodated in the second accommodating cavity. The pressure adjustment component includes a plurality of pressure adjustment plates (21). The plurality of pressure adjustment plates are spaced apart in a second direction (Y) to form a pressure control flow channel (22). The coating die and the coating device can improve the slurry coating uniformity during a coating process.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Disclosed in the present application are a winding needle (10), a winding device (1000) and a battery processing system. The winding needle comprises: an inner needle (11); at least two outer needles (12), which surround the inner needle along the circumference of the inner needle, and are movably arranged on the circumferential side of the inner needle in the radial direction of the inner needle; and a first structural member (13), which abuts against the outer needles, and can move relative to the outer needles in the axial direction of the inner needle to push the outer needles away from the inner needle in the radial direction of the inner needle. In the winding needle of the present application, the first structural member pushes the outer needles away from the inner needle in the radial direction of the inner needle, thereby achieving the effect of expanding the outer diameter of the winding needle; and the first structural member can be disengaged from the outer needles, and then an electrode assembly can apply pressure to the winding needle to enable the outer needles to move close to the inner needle in the radial direction of the inner needle, thereby achieving the effect of reducing the outer diameter of the winding needle. In this way, the outer diameter of the winding needle can be increased or decreased, so that the outer diameter of the winding needle can be adjusted during the winding process of the electrode assembly, thereby reducing the tab misalignment.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …