As the core component of new energy, power battery has high requirements for production equipment. Lithium ion battery is the power battery with the highest market share at present, mainly used in electric vehicles, electric bicycles, scooters, etc. The endurance and performance of electric vehicles are closely related to batteries.
The production of power battery consists of three parts: pole piece production (front section), cell assembly (middle section) and post-treatment (rear section); Laser technology is widely used in the production of front pole piece, middle welding and rear module packaging of power battery.
Which link does laser cutting technology play an important role in power battery manufacturing?
Laser cutting is a process that uses high power density laser beam to achieve cutting. In the production of power batteries, it is mainly used for laser lug cutting of positive and negative electrodes, laser pole slice cutting, laser pole slice slitting, and laser cutting of diaphragm;
Before the advent of laser technology, the power battery industry usually used traditional machinery for processing and cutting, but the die cutting machine will inevitably wear, drop dust and burrs during use, which may cause the battery overheating, short circuit, explosion and other dangers; In addition, the traditional die cutting process has many problems, such as fast die loss, long die change time, poor flexibility and low production efficiency, which can not meet the development requirements of power battery manufacturing. The innovation of laser processing technology plays a prominent role in the production of power batteries. Compared with traditional mechanical cutting, laser cutting has the advantages of no wear of cutting tools, flexible cutting shape, controllable edge quality, high accuracy and low operating cost, which is conducive to reducing manufacturing costs, improving production efficiency and greatly shortening the die cutting cycle of new products. Laser cutting has become the industry standard configuration in the power battery lug processing link.
Due to the continuous improvement of the new energy market, power battery manufacturers have also significantly expanded their production on the basis of existing capacity, driving the demand for laser equipment to increase.
