The working principle and advantages of lithium battery sorting machine

Lithium Battery Sorting Machines primarily measure key battery parameters such as internal resistance, voltage, and capacity. For example, a high-precision voltage test module can accurately measure a battery's open-circuit voltage. The open-circuit voltage directly reflects the battery's state of charge; a low open-circuit voltage indicates potential issues such as internal micro-shorts or high self-discharge. Internal resistance testing is equally important, as it impacts the battery's charge and discharge efficiency and lifespan. Lithium battery sorting machines utilize advanced internal resistance testing technology to quickly and accurately detect battery internal resistance, selecting batteries with similar internal resistance and ensuring consistent performance during charging and discharging.

In actual operation, the workflow of a lithium battery sorting machine typically includes loading, testing, and sorting. For the loading process, some sorting machines utilize a uniquely designed loading bin, such as a dedicated loading box made of Bakelite. Operators simply place the box in a designated position in the bin and remove the bottom baffle. The motor-driven rolling teeth then roll the batteries into the battery conveyor buffer belt in an orderly manner. The entire process is efficient and convenient, effectively preventing material jams. During the testing phase, as battery cells are transported to the testing station, a multi-channel testing system simultaneously and rapidly checks parameters such as voltage and internal resistance. For example, a certain advanced lithium battery sorting machine, equipped with a 10-channel testing system, can quickly test the parameters of a large number of cells, significantly improving production efficiency. During the sorting phase, the equipment uses sorting actuators such as robotic arms and air blowers to precisely sort the cells into bins with different levels according to preset parameter ranges.

Lithium battery sorting machines offer many significant advantages over traditional manual sorting.

In terms of efficiency, for example, a machine capable of sorting over 4,000 cylindrical finished battery cells per hour far surpasses manual sorting. Manual sorting is not only inefficient, but also prone to fatigue from long hours, making it difficult to guarantee accurate sorting. Lithium battery sorting machines, on the other hand, operate 24/7, significantly improving production efficiency and meeting the needs of large-scale production. Modern lithium battery sorters offer impressive accuracy. For example, some devices can detect voltage with an accuracy of ±0.1mV and internal resistance with an accuracy of ±0.5% rdg. This high precision allows precise differentiation of battery performance, ensuring highly consistent performance in sorted batteries. Manual sorting, however, is limited by the errors of visual observation and manual operation, making it difficult to achieve such high accuracy.

Reliability is also a key advantage of lithium battery sorters. They utilize standardized, automated operating procedures, eliminating sorting errors caused by subjective factors. Furthermore, the equipment is equipped with a comprehensive fault diagnosis and early warning system. In the event of a malfunction, an alarm is issued and the fault is located immediately, enabling maintenance personnel to quickly repair the problem and ensure production continuity.