Tips when welding 18650 lithium ion battery pack

18650 lithium-ion battery is one of the most common lithium-ion batteries on the market today. Cylindrical batteries commonly used in battery PACK, that is, people often say 18650, 21700, 32650 and other specifications batteries. The 18650 lithium ion battery pack process is mainly based on the PACK battery structure. Most of the 18650 lithium battery pack process features are similar. TOB New Energy can supply the automatic 18650 battery pack double side spot welding machine for 18650,26650,32650 cylinder battery pack automatic spot welding, it can weld both side together with high speed and good effect.

What should be paid attention to when welding 18650 lithium ion battery pack process?

1. Pay attention to the spot welding current when welding 18650 lithium ion battery.

2. Pay attention to the diameter of the welding pin when welding 18650 lithium ion battery.

3. When welding 18650 lithium-ion batteries, pay attention to the distance between the welding pins.

4. When welding 18650 lithium-ion battery pack process, pay attention to the number of welding points.

5. Can not explode fire, short circuit, or virtual welding during spot welding.

Multi-parallel multi-series 18650 lithium ion battery pack design process skills

1. Adopt the principle of priority and easy operation, that is, employees are easy to operate.

2. Adopt the principle of priority operation safety, that is, employees are not easy to short-circuit or have better preventive measures during operation.

3. Adopt the principle of equipment, that is, use auxiliary equipment to complete as little as possible, and at least semi-automatic.

4. The packaging design should be reasonable, easy to take and put, and don't take the product out to the customer for a long time.

There are many reasons for the inconsistency of the 18650 lithium-ion battery before PACK. The materials constituting the battery are not completely consistent, and the process of manufacturing the battery cannot be controlled to the same degree in every detail. This will lead to inconsistent capacity, inconsistent terminal voltage, inconsistent internal resistance, inconsistent life, etc. In addition to the electrical performance to be screened, the appearance of the 18650 lithium-ion battery should also be tested. For example, measuring defects such as scratches, breakages, stains, pits, bumps on the surface of the battery will affect the assembly of the battery module and the safety characteristics of the pack.

We are TOB New Energy,we are not only provide the equipment of the battery,but also provide the knowledge of battery.

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