Almost no one here understands this aspect. I know it a little and I haven't been in contact with it for seven or eight years. I don't know how much has changed. Help you!
1. First, distinguish between manual winding and semi-automatic winding;
2. The learning report is nothing more than what you learned from this training, mainly focusing on; key points, such as winding techniques, precautions and common winding failures;
3. You can first describe your understanding of positive electrode sheet, negative electrode sheet and separator, such as the specifications and types of separator, and what are the negative electrode sheets? The graphite is covered with copper foil. The positive electrode sheet is made of lithium cobalt oxide/lithium manganate or lithium nickel cobalt manganate (ternary material) recopen with aluminum foil. the negative electrode sheet is wider than the positive electrode sheet. , first briefly describe my understanding of contact materials;
4. In addition, a very important tool for rolling: rolling needle, how to choose it, it doesn't matter if you don't understand this. Just follow the process requirements, but if you can correctly calculate the width and thickness of the rolling needle without consulting the process documents, it will be very promising;
5. If it is purely manual winding, when winding, first place the negative electrode piece on the top of the winding needle, align the rubber ring of the tab with the edge of the separator paper, then put the positive electrode piece after. half a turn, and the positive electrode piece should be placed in the middle of the negative electrode piece, with the rubber ring of the tab aligned.The edges of the diaphragm paper and the positive and negative ear gels should be at the same height. After winding is completed, the tape should be applied longitudinally and the tape and pole pieces should be free of wrinkles.
6. Then there are some precautions. For example, when winding, you must ensure that the pole pieces are put in place to ensure that the center distance of the pole tabs conforms to the standard, and ensure that the two pole tabs are at the same level, and the bottom edge of the tab sticks Even with the diaphragm paper etc. you almost forgot the other N years without contact you should have learned
7. If it is wound by a semi-automatic winder , it's almost the same, just a little more Adjust the machine, like air pressure, speed, etc. ;
Finally, I would like to express my humility and seek advice from the leader if there are any shortcomings;
This is how a relationship is formed. In fact, a report can allow your boss to discover your abilities. reveal the person's logical thinking ability, linguistic expression ability, academic ability, synthesis ability, sense of responsibility, ambition, etc. , very important if you make this report entirely according to my ideas above, I think you will attract the attention of the. chief. I wish you good luck ! O(∩_∩)O haha~