How are lithium batteries made! After years of development, the lithium battery industry chain has formed a complete industry chain with a high degree of specialization. With the implementation of the new national policy and the promulgation of the new national standard for battery vehicles, the proportion of lithium electric vehicles in the sales market is also increasing. Do you know how lithium batteries are made? What are the production steps?

1. Homogenate

The electrode active materials, adhesives, organic solvents, etc. are mixed together, fully mixed and dispersed, and mixed into a slurry.

2. Coating

The slurry is intermittently and evenly coated on the surface of the transmission collector for drying, and the positive and negative electrode coils are respectively made.

3. Cold pressing

After the application of positive and negative electrodes, the positive and negative electrode materials are relatively sparse, and the working pressure of the electrode plate must be given.

4. Slicing and slitting

According to the battery model, the positive and negative films must be aligned to the total width.

5. Winding

A small strip of positive and negative electrode plates and an isolating film are wound to form a bare electric core.

6. Shell entry, spot welding, vacuum drying

Wrap the exposed lithium ion core with aluminum platinum, and heat the top and side. In addition, a small amount of water is dried through the high temperature heating of the high vacuum pump, thus ensuring the lithium electrical characteristics.

7. Liquid injection

The lithium battery electrolyte is added to the lithium cell, and the lithium cell is completely enclosed.

8. Formation

After assembly, a certain current is given to the rechargeable battery to generate positive and negative chemicals and negative chemicals inside the battery.

9. Volume partition

In the whole production process, due to the processing technology, the specific capacity of rechargeable batteries is inconsistent. According to certain charging tests, the rechargeable batteries are classified by volume.

10. Forming

The appearance of the lithium ion electric core shall be subject to final processing.

The production process of high-quality battery car lithium battery is very cautious, because only in this way can its quality be guaranteed.

However, the quality of lithium battery sales market is uneven, so when choosing lithium ion electric vehicles, we should not be greedy and cheap, and try to choose famous and reliable ones with guaranteed after-sales service!

Shenzhen Topband Battery Co., Ltd.，established in 2006, is a wholly-owned subsidiary of Shenzhen Topband Co., Ltd. (002139.SZ). We focus on lithium iron phosphate batteries,with independent research and development in cells and BMS. With the ability to integrate the entire industry chain, we are committed to providing customers with one-stop lithium battery solutions and services. Our quality products are widely used in energy storage and light power.