Application of Plasma Technology in Lithium Battery Industry

Lithium batteries can be divided into cylindrical batteries, square batteries and soft pack batteries according to their shape, and their production processes are different to some extent, but the overall lithium battery manufacturing process can be divided into the front process (pole piece manufacturing), the middle process (cell synthesis) , the latter stage of the process (chemical component packaging).
Last week, we talked about the USC dust removal solution in the pole piece process section of the previous process. Today, let's take a look at the plasma treatment solution in the cell synthesis process section.
Plasma-treated lithium battery aluminum shell in the cell synthesis section.

Lithium battery process

In the battery assembly process section, when the cell is put into the shell, the aluminum shell needs to be plasma treated to improve the surface energy of the aluminum shell, prepare for the welding of the aluminum shell in advance, and reduce the occurrence of poor welding.

Plasma In the lithium battery process, one plasma surface treatment can have 5 effects.

Plasma treatment of lithium battery aluminum shell experiment

Experiment Description

The contact angle of the untreated aluminum shell on the left is 93.729°, and a 40 dyne pen is used to stroke the sample, and the dyne liquid is obviously gathered.

After the treatment on the right, the contact angle of the aluminum shell is 50.234°, and the dyne pen of 54 is used to stroke the sample, and the dyne liquid is evenly spread on the surface of the sample.

In the industry standard, after the plasma treatment of the aluminum shell, the dyne value is required to be 52. It can be seen that the plasma treatment effect of Shengding is higher than the industry standard.

Advantages of SPA5000 Series:

1. Data processing and judgment:Equipped with ARM chip, the power accuracy can be maintained at ±1%
2. Increase the power usage:Using imported brand PFC chip, the power factor is increased from 0.65 to more than 0.99, which can reduce the useless power by more than 25%
3. Strong anti-interference:Adopt imported brand phase-shifting full-bridge soft switching circuit, the response time is less than 0.1s, strong anti-interference, and the circuit efficiency can be increased by more than 10%
4. Digital Communication:9 real-time monitoring functions, 18 kinds of fault alarm functions, support both analog communication and digital communication (support RS232/485 communication interface at the same time)

Relying on the "five functions" of active particles in the plasma to enhance the effects of bonding, lamination, welding, coating, bonding, and degumming, the processed materials may include metals, oxides and most polymer materials.
Corresponding to different materials, different treatment processes should be used, and the selected process gases are also different. For more solutions or verification reports, please contact us to obtain .