Five aspects of the production process of lithium batteries

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

Lithium battery production process is a different lithium battery manufacturer, but due to the same principle, the main lithium battery production process is also basically consistent, generally: ingredients, coating, roll compression, paper, strip, Welding pole ear, winding, packaging, baking, liquid, chemical formation, molding, separation detection, etc. Lithium batteries take up a place in people's daily life, how are it from? Lithium battery production technology? Although lithium battery production process has some differences in lithium battery manufacturers, due to the same principle, the main Lithium battery production technology is also fundamentally. In the necessary steps necessary for the above lithium battery production process, it is necessary to pay attention to the five aspects from the distribution to molding.

As: 1, the material is appropriately ion-doped, 2, improve the particle size distribution of the active material, avoiding the particle size distribution of the active material, 3, and uses a material having a thin layer structure or layer structure. 4. Improve the surface structure of the electrode material; Second, the high bond strength of the electrode coating facilitates the reduction of circulating capacity, which is the most technically content process in the lithium battery production process, to pay attention to: 1, forming an adhesive The binder and solvent of the material should be pure, and the coated polar sheet should not be stored for too long, and the adhesive used in the mixed material of the positive and negative electrode coating film should be appropriately compared to the active material, ensuring that the coating film does not drop the powder.

, No deprinceration; three, electrolyte composition, lithium battery production process for electrolyte is maintained capacity, extend battery life: 1. Optimization of lithium salt, solvent and additive, improve electrolytic liquid conductivity, decrease Polarization, 2, inhibiting the reaction of the positive electrode material and the electrolyte, 3, by controlling the appropriate specific surface area and surface treatment of the carbon negative electrode material, film formation and surface chemical reaction, improve the surface structure of the negative electrode material; four, After the preparation of the battery material, the lithium battery production process enters the assembly process, then pay attention to: 1, the negative electrode capacity is slightly larger than the positive electrode capacity, 2, after the positive and negative electrode and the diaphragm, the positive, negative electrode sheet and the diaphragm are formed. The gap size is not more than 0.

5mm, and the upper and lower deviation is not more than 0.5mm. 5.

When passing to detect, in accordance with national standards, charging with low rates is suitable, usually 0.2C. In general, we should pay attention to the following proportional relationship in the process manufacturing stage: the polar side and the polar compact density, the negative excess rate, the formulation process, the electrolyte and the positive and negative matching.

Every step in the lithium battery production process is different. Under normal circumstances, ingredients, baking, chemical time, less than 10 hours, more than two days two nights; other processes are faster, with average 5,6 Hour. The entire lithium battery production process is about 15 days.

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