Production process of lithium battery.

Step 1 -- Preparation of electrode slurry

It is mainly mixed with electrode active materials, binders, solvents, etc., and fully stirred and dispersed to form a slurry.

Step 2 -- Coating

The slurry prepared in the first step is evenly coated on the collection fluid(aluminum foil or copper foil, etc.) with a specified thickness, and the solvent is dried.

Step 3-Polar-cutting

Cut the last step of the poly into the specified size shape.

Step 4 -- Stack

The positive and negative electrode and diaphragm are assembled together to form a polar core after the adhesive is completed.

Step 5-Assembly of soft pack batteries

The core produced in the previous step is loaded into the aluminum plastic film that has been flushed into the pit, and the top seal, side seal, etc. are completed(and a mouth fluid is left) to form a soft pack battery without injection.

Step 6 -- Injection

The assigned amount of electrolyte is injected into the inner core of the soft package. Of course, the core must be baked, and under the low humidity environment to carry out liquid injection operations, too much water content is not good.

Step 7 -- Battery seal

The gas inside the core is extracted and sealed in a vacuum environment.

The result of the lithium battery front-end process is to complete the preparation of the lithium battery positive and negative electrode tablets. The first process is to stir, that is, to mix the positive and negative solid battery materials evenly and add a solvent, and stir them into a pulp through a vacuum mixer. The mixing of ingredients is the basis of the follow-up process of lithium electricity, and the high quality stirring is the basis of the high quality completion of the follow-up coating and roller pressing process.

With the rapid development of electric vehicles and automobiles, the power supply on the car has also developed rapidly. However, there are many problems in the production of batteries, resulting in a very uneven quality of battery products in the market. The battery's capacity can not reach the designed service life, which has a great relationship with the battery's unique production process in production. The structure of the battery consists of a shell, an upper cover, a polar plate, a partition, a bus, a pole column, a bridge protection plate, and a terminal.

Unscrew the exhaust bolt, make sure that the breathable hole on the plug penetrates, there is a sealing pad and sealing paper under the bolt, and it needs to be removed after acid filling;

The electrolyte temperature must be cooled to below 30 °C and filled into the battery;

The prepared electrolyte is injected into each single cell, the liquid surface of the plastic shell battery is aligned with the shell Mark "Max", and the liquid surface of the rubber tank battery should be 10-15mm of the Gaochu partition;

Tighten the exhaust bolt to prevent acid leakage.

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