The Composition and Characteristics of Lithium Ion Battery Pack

The process of assembling lithium battery cells into groups is called pack. A pack can be a single battery or a series parallel battery module. Under the background of the new national standard, the demand for lithium batteries is increasing, and many lead-acid battery enterprises have also launched lithium battery products; In fact, the lithium battery pack process is not difficult. Mastering this technology, you can assemble the battery pack by yourself, instead of just acting as the manufacturer's "battery porter", and the profit and after-sales are no longer controlled by others.

Pack composition

Pack includes battery module, busbar, soft connection, protective board (BMS), outer packaging, output (including connector), highland barley paper/ insulating paper, plastic support and other auxiliary materials, which together form a pack.

Characteristics of pack

① Battery pack requires a high degree of consistency (capacity, internal resistance, voltage, discharge curve, life). Can use ACEY battery capacity tester and battery sorting machine for voltage and IR testing.

② The cycle life of the battery pack is lower than that of a single battery.

③ Use under limited conditions (including charging, discharging current, charging mode, temperature, etc.)

ACEY charge and discharge cycler can test battery pack’s life.

④ After the lithium battery pack is formed, the battery voltage and capacity have been greatly improved, so it must be protected, and its charge equalization, temperature, voltage and overcurrent monitoring must be carried out. In this case, a BMS tester is necessary for testing battery management system.

Acey new energy is a professional supplier of the complete battery pack assembly line solution.