The booming development of the new energy industry has led to an increasingly urgent demand for high-performance lithium-ion batteries. The battery case includes: negative electrode shell, spring plate, and two gaskets. The basic steps for assembling a button type battery include: pulping, coating, drying, cutting, and assembly. The structural structure is as follows.
The most commonly used industrial technology for manufacturing lithium-ion battery electrodes is wet treatment. Although widely accepted, this treatment method still faces many problems, including expensive and hazardous solvent recovery, coating inconsistency, and microstructural changes caused by solvent drying processes. These issues are closely related to the performance of the slurry, which is the first process for preparing lithium-ion batteries.
Battery electrode paste usually includes active materials, conductive agents, binders, and solvents. Conductive agents provide channels for electronic transmission, while adhesives adhere active substances and conductive agents together. The slurry preparation process is the process of uniformly mixing its components, and the performance of the slurry determines the performance of subsequent lithium-ion batteries. The latest slurry preparation process in the R&D laboratory is as follows.
This preparation process has several advantages that conventional stirring processes do not possess:
1. High efficiency, can prepare a formula within 2 minutes, improving research and development efficiency;
2. The processing capacity is flexible and versatile, capable of meeting experimental volumes ranging from 1g to 1kg;
3. Mixing and dispersing evenly, superior to traditional mixing processes, with high stability;
4. Mixing simultaneously with defoaming function can remove submicron level bubbles that are invisible to the naked eye;
This process strengthens the connection between active materials, conductive agents, and fluids, making the internal dispersion of the slurry more uniform, improving conductivity, and further optimizing the performance of the battery.
Further application in the subdivision field of lithium batteries, such as ternary precursors, preparation of lithium iron phosphate, preparation
details of various types of water-based/oil-based positive and negative electrode slurries, fuel cells, etc., Weinai Intelligent provides free on-site
