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The role of lithium battery plasma surface treatment equipment in the battery manufacturing process

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29 Jan,2021

The role of lithium battery plasma surface treatment equipment in the battery manufacturing process:

Power lithium battery is a kind of commonly used lithium battery which is powered by pneumatic tool display driving force. This is a clean and environment-friendly driving power supply. In today's application scenarios, it is widely used in pure electric vehicles, electric trains, electric vehicles and so on. In recent years, with the rise of new energy vehicle sales market, the safety and reliability of power lithium battery has become a topic of concern and discussion. The reason lies not only in the fact that power lithium-ion battery is the key component of power drive system software, but also in the fact that the production process of power lithium-ion battery itself has high reliability and reliability requirements. Take automotive lithium battery as an example. What role can plasma surface treatment equipment play in the manufacturing process of power lithium battery? What can be done to help?

battery plasma surface treatment equipment

In the manufacturing process of automotive power lithium battery, the surface treatment of plasma surface treatment equipment is generally carried out from three levels, that is, to improve the lubrication performance of the ceramic film before the positive and negative plate coating; The cleaning of the connection before lithium welding; As well as improving the surface adhesion of insulation board, end board, PET plastic film and other metal composite materials and their insulation materials before external adhesion of them and their lithium battery components. Next, I'll summarize briefly, and then go into more detail one by one.

1. Plasma surface treatment equipment to solve the problem of positive and negative two-stage coating in front of ceramic membrane plasma cleaning machine:
The positive and negative grades of the automotive power lithium battery are made from the positive grades of the ceramic film and the cathode materials of the battery. Compared with ethanol and other aqueous solution cleaning, plasma cleaning machine treatment will not damage the raw material, and can remove the organic matter on the surface of the raw material, improve the lubrication of the film surface, improve the uniformity of the coating, heat resistance and safety factor.

2. Cleaning treatment of plasma surface treatment equipment before welding:
The lithium connector is actually the part of the metal strip that correctly guides the positive and negative stages of the rechargeable battery. It is point contact during battery charging and discharging. Whether the surface of the connection is cleaned or not will do great harm to the reliability and performance of the electrical connection. Before electric welding, plasma cleaning machine can remove organic matter, particles and other residues on the weld surface, so that the weld surface becomes uneven, so as to improve the quality of welding.

3. Plasma surface treatment equipment for the treatment of lithium battery modules:
Lithium-ion battery assembly is a process in which several rechargeable battery modules are connected in series into a series of parallel circuits to produce a lithium battery pack. In order to keep the power line and insulation layer safe, in this process, it is necessary to affixed external rechargeable batteries to improve the safety factor of the application. Before that, please use the plasma cleaning machine to clean the insulation board, end board, PET film and other parts. Isoionization treatment can thoroughly clean the dirt surface, make the surface become not smooth, and improve the adhesion of strong glue or strong glue.

After years of development trend, China's power lithium battery industry chain has begun to take shape, but there are still some problems, such as technical strength and R&D ability is not strong, can not be fully utilized. It is believed that with the improvement of technical standards, the requirements of plasma surface treatment equipment will be put forward more detailed and diversified provisions.

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