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The meaning of coating 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:(Lithium - Ion Battery Equipment) 1. It is of great significance to the capacity of the finished battery

There are two typical follow-up paths for lithium-ion battery recycling, cascade utilization or direct material recycling. 1. Cascade utilization and raw material recovery For retired power lithium-ion batteries, those who take the road of tiered utilization are to recycle materials after the tiered utilization; for direct material recycling, the batches are too small, there is no history to check, and the safety monitoring is unqualified, etc. The pursuit of economic benefits is the driving force behind c

The fast charging problem of lithium-ion batteries needs to be analyzed from two levels. From the cell level, the rate performance of lithium-ion batteries is restricted by the intrinsic transmission characteristics of the material matching system such as positive electrode/negative electrode/electrolyte on the one hand, and on the other hand. In terms of pole piece technology and cell structure design, the rate performance is also greatly affected. However, in terms of the most intrinsic carrier conduction and

Power lithium-ion battery aluminum shell packaging process The aluminum shell of the automotive power lithium battery is made of aluminum 3003, because this material is easy to process and form, high temperature corrosion resistance, good heat transfer and electrical conductivity. The power lithium battery aluminum shell (except the shell cover) of 3003 aluminum alloy can be drawn and formed at one time, and the welding process of the bottom of the box can be omitted for the stainless steel shell. 3003 is mai

(1) Baking Bake for 12 hours under the conditions of constant temperature and vacuum degree of -0.09MPa, the important purpose is to dry the moisture of the cell. (2) Liquid injection The battery cells after vacuum baking are injected with electrolyte in the glove box filled with Ar gas. The injection volume is different according to the design of the lithium-ion battery pack. The battery should be weighed before and after injection. The weight difference is the injection volume. This will determine whethe

1. Ordinary series charging At present, the charging of lithium-ion battery packs is generally performed by series charging, which is mainly because the series charging method is simple in structure, low in cost, and relatively easy to implement. However, due to the differences in capacity, internal resistance, attenuation characteristics, self-discharge and other performances between single lithium-ion batteries, when lithium-ion battery packs are charged in series, the single lithium-ion battery with the small

Frequent fast charging will have a certain degree of impact on the batteries currently carried by electric vehicles, which varies according to the type of battery. At present, electric vehicles are generally equipped with lithium-ion batteries and lead-acid batteries. Among them, lithium-ion batteries also include lithium iron phosphate batteries and ternary lithium-ion batteries. Different types of batteries need to be analyzed differently. Lead-acid batteries are currently mainly used in miniature electric veh

Cascade utilization and dismantling recycling are important ways to recycle decommissioned lithium-ion batteries. (1) Cascade utilization can realize the secondary application of decommissioned power lithium-ion batteries in the field of energy storage. Car companies and battery factories have inherent advantages, but they also face the dilemma of high recycling costs for retired batteries. At the same time, this approach has extremely high requirements on battery consistency, and some demonstration projects are

We all know that lithium-ion batteries, as the power engine of new energy vehicles, determine the endurance and mileage of new energy vehicles, and the quality of their craftsmanship directly affects the performance of the new energy vehicle market. To this end, the company is also trying to use more advanced processing technology, such as laser cutting technology, to improve the performance of lithium-ion batteries. Laser cutting technology has the characteristics of controllable processing, high efficiency and