What are the components of a lithium-ion battery pack?

In the lithium-ion battery pack, there are the main electronic modules: the batteries (cells) connected in groups in parallel and series, the cell contact system, and the BMS (battery management system). The BMS is the brain of the battery pack.

What is battery module and Pack testing?

Battery module and pack testing involves very little testing of the internal chemical reactions of the individual cells. Module and pack tests typically evaluate the overall battery performance, safety, battery management systems (BMS), cooling systems, and internal heating characteristics.

What is a battery pack?

A battery pack contains any number of battery modules along with additional connectors, electronics, or packaging. The above distinction is important as battery cells are treated as individual components whereas battery modules and packs are treated as an assembly (reference Figure 3).

What happens during the charging and discharging process?

During the charging and discharging process, the voltage of each single cell, terminal voltage, terminal current, the charging and discharging status, the charging and discharging capacity, etc. are monitored in real time. Automatically saves historical charging and discharging records, supporting both curve and bar chart data display formats.

What happens during the discharge process of a battery?

Discharge Process: During the discharge process, the battery’s chemical reactions undergo a reversal. Lithium ions migrate from the negative electrode to the positive electrode, while electrons travel from the negative electrode to the positive electrode.

What is a traction battery pack?

They provide the power required to propel the vehicle by supplying electricity to the electric motor. Unlike conventional lead-acid batteries used in starter motors, traction battery packs are high-capacity lithium-ion (Li-ion) batteries engineered for sustained energy output, high energy density, and longevity.