Operation tips for lithium battery winding machine? :
Adjust the tension of the winder, not too tight; the cleanliness of the diaphragm should also be well adjusted, otherwise it will not be easily exposed. The rolling needle must be adjusted well, otherwise it will not easily remove the core when finishing, etc.
Winding the battery core is skillful work. Once the pole piece is in place and feels good, it will be wound slowly!
Mainly used for cylindrical lithium-ion power winding of battery cells. The working process is as follows: the positive and negative electrode sheets and separators are automatically unrolled, undergo dust removal and static elimination treatment respectively, are fed into the winding section and wound according to the process requirements, and a termination ribbon is attached. The finished productis automatically unloaded and sent to the collection table via the conveyor belt to realize the fully automatic winding process.
Almost no one here understands this aspect, I only know a few and don't know about it. not know. I hit it in seven or eight years. What happened ? I don't know how big the changes were.
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 coveredof a sheet of copper. The positive electrode sheet is made of lithium cobalt oxide/lithium manganate or lithium nickel cobalt manganate (ternary material) covered 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 place the piece ofpositive electrode afterwards. 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 thing, just onesome 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 gaps;
This is how rapport 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 heavyYes, if you make this report entirely according to my ideas here above, I think you will attract the attention of the leaders. I wish you good luck ! O(∩_∩)O haha~