Analyze the production methods of lithium batteries

An important method for the production of lithium batteries Lithium batteries, as a new type of energy, are now widely recognized and used by people, including some digital products, mobile computers, etc., we usually use, and some lithium battery electric vehicles, automobiles, and these vehicles. Convenient but also very conducive to environmental protection, the author of this article analyzes the disposal methods of lithium batteries. Knowing the treatment methods of lithium batteries, we must know the cathode structure of lithium batteries and the structure of the battery.Usually, the choice of cathode materials for lithium batteries is LiCoO2LiNiO2, LiMn2O2. The anode of the battery is usually LiCoO2 and conductive agent and binder. It can be used as a positive plate. Coated aluminum foil, flake graphite anode material conductive agent. At present, some of the world's better anode layer graphite particles have selected carbon nanoparticles. The following are the specific methods of lithium battery production: 1. Negative electrode data processing (1) First, the large particle size and ultra-fine powder are separated from the required particle size to prevent chemical reactions and improve cell safety. (2) Increasing the porosity of the data surface by more than 10% without changing the C/A ratio can improve the safety performance of the battery. 2. Pulping process control (1) The pulping process usually uses special chemical reagents to minimize the tension between the positive and negative pulps. Improve compatibility between groups and prevent data aggregation during the mixing process. (2) During the coating process, the gap between the substrate data and the nozzle should be controlled below 0.2mm to make the surface of the sheet smooth without particles, dents, scratches and other defects. (3) The storage time of the slurry should be kept at least 6 hours, and there should be no self-agglomeration in the slurry. The uniform slurry is the uniform distribution of the positive electrode substrate and the negative electrode substrate of the battery, which improves the consistency of the battery. 3. Adopt advanced plate manufacturing equipment (1) Advanced equipment not only guarantees the quality of the chip, but also greatly improves the uniformity of the chip and the pass rate of the battery. (2) The density error value of the single electrode plate of the coating machine is controlled within a certain range. (3) Ensure that the taper jump frequency of the rolling machine is not more than 4cm, and the thickness of the processed plates is consistent. In addition, the equipment should have a good vacuum system to prevent short circuits caused by floating dust. (4) The cutter generally uses the roller cutter from the sprocket, and then the continuous sprocket equipment. The result of cutting does not have shortcomings such as flash and burrs. 4. Advanced sealing technology Now laser (laser) generally chooses domestic lithium battery welding and sealing technology, which uses neodymium-doped yttrium aluminum garnet rods (yttrium aluminum garnet) to receive strong light in a pile of laser cavity at a single frequency The light (λu003d1.06mm) is then set as a stack of refraction, and then set to focus on the battery cylinder and the plane, so that they merge into an organic whole, to achieve the purpose of sealing and fusion of the plane and the cylinder. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the important parts of the lithium battery structure?