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The meaning of coating.Lithium - Ion Battery Equipment Slurry coating is the next process after the preparation of the slurry. The important purpose of this process is to uniformly coat the slurry with good stability, good viscosity and good fluidity on the positive and negative electrode current collectors. The pole piece coating is of great significance to the lithium-ion battery pack, which is mainly reflected in the following points: 1. It is of great significance to the capacity of the finished battery

Lithium titanate battery has the advantages of small size, light weight, high energy density, good sealing performance, no leakage, no memory effect, low self-discharge rate, rapid charge and discharge, long cycle life, wide working environment temperature range, safe and stable green It has the characteristics of environmental protection and so on, so it has a very wide application prospect in the field of communication power supply. When the lithium titanate battery is used as the negative electrode material,

(1) Special solvents and binders for pulping are mixed with powdered positive and negative active materials respectively, and after high-speed stirring evenly, slurry positive and negative materials are made. (2) Coating film The prepared slurry is uniformly coated on the surface of the metal foil and dried to form positive and negative electrode pieces respectively. (3) The assembly is placed in the top-down order of the positive electrode sheet-diaphragm-negative electrode sheet-diaphragm, and the battery p

Not only does the slitting machine have operating process requirements, but rewinders and napkin machines also have corresponding process requirements. Every employee who operates these machinery and equipment must undergo these trainings before they start to work, so as to reduce the probability of accidents. In production and processing, whether it is manual or mechanical operation, we are more concerned about its work efficiency, because good efficiency can not only increase productivity for the processing and m

The growing demand for batteries for energy storage and electric vehicles has prompted US companies to consider opening lithium mines in Nevada and other regions, which may increase US lithium production by 2 to 3 times in the next few years. Currently, there is only one lithium mine operating in the United States. The Silver Peak plant in Nevada is owned by Albemarle, which has a production capacity of 5,500 tons per year. The lithium mine in Nevada will go online in 2022 and will be developed by Lithium Americas

1. Humidity control <1%RH Purpose: to prevent water absorption during the winding process of positive and negative electrode sheets, resulting in zero voltage, self-discharge, and poor cycle performance; Method: Calculate the dew point value and the temperature value to obtain the temperature and humidity value; 2. Dust control &le;100,000pc/ft3 (detection particle size is 0.5um) Purpose: to prevent the dust from being involved in the pole group during winding, resulting in short circuit, overheatin

Both disc slitting and die cutting have tool wear problems, which easily cause process instability, lead to poor cutting quality of pole pieces, and reduce battery performance. Laser cutting has the characteristics of high production efficiency and good process stability. It has been used in the cutting of lithium-ion battery pole pieces in industry. The basic principle is to use high-power density laser beams to irradiate the cut battery pole pieces to make the pole pieces It is quickly heated to a very high tempe

Before the advent of laser technology, the battery industry used traditional machinery for processing. Compared with traditional mechanical processing, laser processing has the advantages of no tool wear, flexible cutting shapes, edge quality control, higher accuracy, and lower operating costs. It is conducive to reducing manufacturing costs, improving production efficiency, and greatly shortening new product molds. Cut cycle. Lithium batteries, as the core components of new energy vehicles, directly determine the

When the lithium-ion battery voltage is higher than 3.0V, it enters the second stage, the high current constant current charging stage (CCFastcharge). Since the lithium-ion battery has been pre-charged in the first stage, its state has been relatively stable (the purpose of the pre-charge stage can be understood in this way~ but it is not rigorous). Therefore, in the second stage, the charging current can be appropriately increased. According to different batteries, the current can vary from 0.1C to several C, wher