The lithium battery manufacturer introduced that the lithium battery rear stage production process is divided into four processes: divided capacity, formation, detection, packaging and warehousing, accounting for about 35% of the value of the production line. As the most important part of the later process, the formation and capacity division are used to detect the activation of the formed battery. Due to the long charging and discharging test cycle of the battery, the value of the equipment is the highest. The main function of the formation process is to charge and activate the cell after liquid injection packaging, and the fractional capacity process is to test the battery capacity and other electrical performance parameters and grade them after the activation of the battery. The formation and fractionation are completed by the formation machine and fractionation machine respectively, usually by the automatic fractionation system.

Lithium battery pack process

Lithium battery manufacturer said that it seemed simple but needed to be combined with systematic design

Lithium battery manufacturer

Lithium-ion battery is a battery pack that connects many single cells in series and parallel, and integrates battery hardware systems such as power and thermal management. Pack is the key to the production, design and application of the power battery system, and is the core link to connect the upstream cell production and the downstream vehicle application. Generally, the design requirements are proposed by the cell factory or the automobile factory, and usually completed by the battery factory, the automobile factory or the third-party pack factory.

The lithium battery manufacturer introduced that the lithium battery pack production line is relatively simple. The core processes include feeding, bracket pasting, electric welding, detection and other processes. The core equipment is laser welding machine and various kinds of pasting detection equipment. It is understood that at present, the major lithium equipment manufacturers have less automation integration layout in this field, while the laser equipment manufacturers such as Han's laser and Lianying laser have a high share in the field of pack equipment due to their absolute advantages in the field of laser.

The lithium battery manufacturer said that the current automation proportion of Pack production is relatively low, because the current sales volume of single new energy vehicles is not large enough, and the cost of automatic production line is high.