Issues to note in 18650 battery 2200mah production process

　　18650 battery 2200mah manufacturers introduce issues to pay attention to in the 18650 battery 2200mah production process. The production of lithium batteries has a lot to do with its unique production process. The most important aspects of the lithium-ion battery production process are mixing and coating. The production and manufacturing of lithium-ion batteries is a process that is closely connected with each process step. The following 18650 battery 2200mah manufacturers will introduce the issues that should be paid attention to in the 18650 battery 2200mah production process.

　　18650 battery 2200mah production process

　　Objectively speaking, the 18650 battery 2200mah production process is divided into three major sections, one is pole piece production, the other is cell production, and the third is battery assembly. In the 18650 battery 2200mah production process, pole piece production is the foundation, battery core production is the core, and battery assembly is related to the quality of the finished 18650 battery 2200mah.

　　The specific steps of the 18650 battery 2200mah production process include positive electrode slurrying, negative electrode slurrying, positive electrode sheets, negative electrode sheets, steel case assembly, liquid injection and testing, and packaging.

　　It can be seen that all aspects of the 18650 battery 2200mah production process are closely related to product quality and safety. Each link in the 18650 battery 2200mah production process must be strictly and carefully managed in order to improve the safety performance of 18650 battery 2200mah products. .

　　18650 battery 2200mah manufacturers introduce issues to note in 18650 battery 2200mah production processes

　　The 18650 battery 2200mah production process has some differences depending on the different 18650 battery 2200mah manufacturers, but because the principles are the same, the main 18650 battery 2200mah production processes are basically the same, generally including: batching, coating, rolling, cutting, slitting, Welding tabs, winding, packaging, baking, liquid injection, formation, molding, volumetric testing and other processes.

　　Among the necessary steps in the above-mentioned 18650 battery 2200mah production process, five aspects should be paid attention to from material selection to volumetric testing after molding:

　　1. Improving the physical and chemical structure of positive and negative active materials, which is the basic link in the 18650 battery 2200mah production process. For proper ion doping of materials, try to use materials with disordered layered structures or thinner layer structures.

　　2. The high bonding strength of the electrode coating is conducive to reducing the cycle capacity decline rate. This is the most technical process in the 18650 battery 2200mah production process. The proportion of adhesive and active material used in the mixture of positive and negative electrode coatings must be appropriate to ensure that no powder will fall off or come off after coating.

　　3. Optimization of the composition of the electrolyte. The requirement for the electrolyte in the 18650 battery 2200mah production process is to maintain capacity and extend battery life. Through the optimization of lithium salts, solvents and additives, the conductivity of the electrolyte is improved and polarization is reduced.

　　4. After the battery material preparation is completed, the 18650 battery 2200mah production process enters the assembly process. At this time, attention should be paid to: after winding the positive and negative electrodes and the separator, the gap size between the positive and negative electrode sheets and the separator should not be greater than 0.5mm. The upper and lower deviation does not exceed 0.5mm.

　　5. When performing capacitance testing, it is advisable to charge at a low rate in accordance with national standards, usually 0.2C.

　　In general, the following proportional relationships should be paid attention to in the 18650 battery 2200mah manufacturing stage: the electrode surface and the compacted density of the electrodes, the excess rate of negative electrodes, the formula process, and the appropriate amount of electrolyte and positive and negative electrodes.

　　The time for each step in the 18650 battery 2200mah production process is different. Generally, the ingredients, baking, and formation time are long, ranging from about 10 hours to two days and two nights at most; other processes are faster, averaging 5 or 6 times. Hour. The entire 18650 battery 2200mah production process takes about 15 days.

　　The above are the issues that should be paid attention to in the 18650 battery 2200mah production process. As we all know, the 18650 battery 2200mah production process is quite complex. After all, the safety performance of lithium-ion battery products is directly related to the life and health of consumers. Naturally, the performance, accuracy, and performance of the equipment in the production and manufacturing of lithium batteries are very important. There are high requirements for stability and automation level.

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