Detailed explanation of common faults in cylindrical lithium battery processing

1. The reason for the dislocation of the cylindrical lithium battery diaphragm and the tapered cylindrical lithium battery diaphragm: (1) Is the winding needle concentric; (2) The winding needle is not perpendicular to the substrate; (3) The last transition roller of the upper and lower diaphragms and the substrate It is not vertical; (4) the roller is not parallel to the roller; (5) the incoming material of the diaphragm is unqualified. Repair methods for the dislocation and taper of the cylindrical lithium battery diaphragm: (1) Use 3.5, 4*100 round car steel with a precision error of 10um and a needle sleeve to measure the concentricity between the two shafts; (2) Concentricity measurement After completion, use a vertical measuring tool and a square to measure the verticality of the needle and the large plate (at least ensure that the two directions are perpendicular); (3) Use a square to calibrate the verticality of the last transition roller of the upper and lower diaphragms; If the roller is not perpendicular to the base plate, you can add spacers until it is vertical, and mark it; Note: As a last resort, do not add spacers to pad indiscriminately) (4) First loosen the screws of the rubber roller and the stainless steel roller, and align them parallel and perpendicular to the The substrate is then locked; (5) Replace the diaphragm with incoming materials. 2. Reasons for the dislocation and tapered failure of cylindrical lithium battery processing pole pieces (1) Is the winding needle concentric; (2) The winding needle is not perpendicular to the base plate; (3) The pole piece guide plate is not perpendicular and parallel to the base plate; (4) Over The final transition roller of the pole piece is not perpendicular to the substrate; (5) The incoming wave is too severe. Maintenance method (1) Use the concentricity between 3.5, 4*100 round car steel with an accuracy error of 10um and the equivalent of the coil needle sleeve; (2) After the concentricity measurement is completed, use a vertical measuring tool and a square ruler to measure the concentricity. Measure the perpendicularity between the winding needle and the large plate (at least ensure that the two directions are perpendicular); (3) Ensure the perpendicularity and parallelism of the pole piece guide plate and the base plate; (4) Use a square ruler to calibrate the final transition roller of the pole piece Verticality; (If the roller is really not perpendicular to the base plate, you can add spacers until it is vertical, and put a mark; Note: As a last resort, do not add spacers indiscriminately) (5) Replace the pole piece. 3. Reasons for the failure of the cylindrical lithium battery processing and adhesive bonding (1) The adhesive is stuck; (2) The phenomenon of leakage; (3) The tape transition stick is inflexible; the maintenance method (1) Loosen the adhesive fixing plate screw during the material Lift it up a little bit and try to make it touch the center of the battery cell; (2) First check whether the rubber-sticking wheel is tightly attached to the battery cell, whether the pressure tape adjusting plate is loose, whether the feeding guide wheel is too high, and the cylinder pressure Is it stable? Is the cylinder adjusting distance screw loose? Is the upper clamping wheel pressing the tape; (3) The wheel in front of the adhesive mechanism collides with the lower support, and occasionally fails to attach the adhesive during the roll, and the lower support has It may be flexible nowadays and cannot be pressed down when the feed is past, so it will occasionally fail to apply the glue; (4) Check if the one-way bearing of the transition stick is installed reversely, loosen the locking sleeve of the transition stick, and adjust the transition stick . 4. Cylindrical lithium battery processing pole piece and diaphragm end dislocation failure is caused by (1) the two sides of the lower support wheel are not consistent; (2) the pole piece guide plate and the base plate are not perpendicular and parallel; maintenance methods (1) first check the end of the battery Sometimes it is biased to the inside. This phenomenon is that the lower support is too high outside, so adjust the inside or outside to lower or raise it to verify that the cell is parallel to the lower support; (2) Ensure the perpendicularity and parallelism of the pole piece guide plate and the base plate ； Statement: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: The important difference between lead-carbon battery and lithium battery