What are the common faults in cylindrical lithium battery processing

1. The reason for the misalignment 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 perpendicular; (4) The roller is not parallel to the roller; (5) The incoming material of the diaphragm is not qualified. Repair methods for the dislocation and taper of the cylindrical lithium battery diaphragm: (1) Use 3.5, 4*100 round car steel with an accuracy 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 the 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 perpendicular, and mark it; Note: As a last resort, do not add spacers to pad randomly) (4) First loosen the screws of the rubber roller and the stainless steel roller, and align them parallel and perpendicular to the The base plate 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 the 3.5, 4*100 round car steel and the coil needle sleeve with an accuracy error of 10um; (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 roll of the pole piece Verticality; (If the roller is 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 in disorder) (5) Replace the pole piece. 3. Reasons for the failure of cylindrical lithium battery processing and adhesive bonding (1) The adhesive is stuck; (2) The phenomenon of leakage; (3) The tape transition stick is not flexible; the maintenance method (1) Loosen the screws of the adhesive fixing plate when making materials Lift up a little bit, try to make it touch the center of the battery core; (2) First check whether the rubber sticking wheel and the battery core are tightly attached, whether the pressure tape adjusting plate is loose, whether the feeding guide wheel is too high, and the cylinder air 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 when rolling, and the lower support is 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; the maintenance method (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 lower or raise the inside or outside 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 substrate Disclaimer: 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: What are the advantages of lithium batteries compared to ordinary lead-acid batteries?