Cylindrical Battery Welding, The Mainstream Direction Of Future Power Batteries

According to the packaging method of the battery, it can be divided into three categories: cylindrical type, square type and soft pack type.

For the three packaging methods of cylinder, square and soft package, manufacturers at home and abroad have great differences in the cylindrical, square and soft package types. Japanese manufacturers mainly use cylindrical batteries. Panasonic’s 18650 cylindrical batteries have been assembled into electronic products around the world in large quantities, and Tesla is also moving towards providing cylindrical batteries for electric vehicles; Chinese companies such as Ningde Times and BYD are all Go the square route.

From 2017 to 2020, China's cylindrical battery market share has declined significantly, mainly due to the low battery life of early supporting cylindrical batteries, resulting in a decline in its market share from 27.2% in 2017 to 9.7% in 2020. %, most of the current market share is replaced by prismatic batteries. However, Tesla, the world's most influential new energy vehicle manufacturer, uses cylindrical batteries in its high-end products.

Due to high energy density, safety and reliability, and low cost, large-capacity batteries have become the focus of major tram companies.

Fly Laser is an enterprise specializing in the production of lithium battery welding equipment. The company's laser welding machines have various styles and powers.

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

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

The advantages of its laser welding battery: no pollution in laser processing, small heat-affected zone, small deformation, water cooling system to ensure the life of laser devices, fine laser welding spot, high penetration depth, high precision, smooth welding surface without bubbles. The material deformation of the workpiece to be welded is small, the equipment performance is stable, easy to operate, the welding quality is superior, the laser beam can be automatically raised and lowered, the welding path can be freely modified, the degree of automation is high, the operation is simple, and the maintenance is convenient. It shows great performance in the lithium battery PACK welding process. Advantage.

Cylindrical batteries also have their unique features, just like the rise of lithium iron phosphate batteries. In the future development, its market share will become higher and higher.

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