What are the specific processes or steps for formation and capacity division of lithium batteries?

Introduction What are the specific processes or steps for the formation and capacity division of lithium batteries? Training is a small current charge to activate material activity. The training process is a key process and every manufacturer is different.

What are the specific processes or steps for formation and capacity division of lithium batteries?

Chemification is the activation of materials by charging with a low current. The training process is a key process, and every manufacturer is different, so there is no way to explain the training process to you.

Regarding capacity classification, batteries from domestic manufacturers have poor consistency, so they need to be sorted.

If you talk about the specific operation of the operator, it is actually installing the battery on the chemical composition cabinet.

In the process of lithium-ion battery manufacturing, there is a workstation that divides the capacity. In simple terms, it is sorting out the battery capacity. This implies what the capacity of the battery is. Actual capacity is usually measured by the time it takes the battery to discharge the battery voltage from 4.2 V to 3.0 V with a current of 1C5 (5 is the index) A, represented by C5 (5 is the index). The nominal capacity (or nominal capacity) of the battery. This capacity represents the capacity specified by the battery cell or battery label. This means the battery cell or battery can last for 5 hours. provided that the ambient temperature is 23℃±2℃ The amount of electricity supplied when discharging to the final voltage at a rate (0.2 ItA). Capacity classification is a process of checking the actual capacity of the battery. Unlike charging, the actual battery capacity can only be measured by the discharging process. The 1C5 (5 is the index) A discharge performance required in GB/T18287-2000 has a discharge time of at least 51 minutes. But the industry generally takes 60 minutes as the minimum requirement.

The battery does not need to be divided into volumes before it can be used. In the whole manufacturing process, when the battery reaches the point of divolume vision, it has basically been manufactured and can be used directly. The division only determines the actual battery capacity, just for testing purposes.

1) If you have professional 12V capacity division equipment, there is no problem. 2) If you only have single cell (ordinary) lithium battery capacity division equipment, you only need to separate the battery into one. cells. Divide the capacity separately to get the C capacity of the single unit, then connect N only in parallel to form a group, then connect three groups in series (N>=40/C takes an integer

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