According to the battery packaging, can be divided into three categories: cylindrical type, square type, soft package type.

Cylinder, square, soft package of these three packaging methods, domestic and foreign manufacturers of cylindrical type, square type, soft package are very different. Japanese manufacturers mainly use cylindrical batteries. Panasonic's 18650 cylindrical battery has been widely assembled in electronic products around the world, while Tesla is also moving towards providing cylindrical batteries for electric vehicles. Chinese companies such as Ningde Times and BYD follow a square path.

From 2017 to 2020, the market share of China's cylindrical batteries showed a significant decline, mainly due to the low battery life capacity of the early supporting cylindrical batteries, which led to its market share decreased from 27.2% in 2017 to 9.7% in 2020. The current market share was mostly replaced by square batteries. However, Tesla, the world's most influential new energy vehicle manufacturer, has adopted cylindrical batteries in its high-end products.

Because of its high energy density, safety, reliability and low cost, large-capacity batteries have become the focus of efforts by major trolley companies.

Xinde Laser is an enterprise specializing in the production of lithium battery welding equipment. The laser welding machines produced by the company have various styles and power sizes.

Small table vibrating mirror continuous laser welding machine for lithium battery: (can weld square shell, large soft bag, large cylinder lithium battery)

Gantry large table vibrating mirror lithium battery continuous laser welding machine: (can weld square shell, large soft bag, large cylinder lithium battery)
Advantages of the laser welding battery: no pollution from laser processing, small heat-affected zone, small deformation, the use of water cooling system, to ensure the life of laser devices, laser welding spot fine, high penetration, high precision, smooth welding surface effec