As a renewable energy storage device, energy storage batteries are being used more and more widely. The application of plastic laser welding technology in the manufacturing of energy storage batteries is getting more and more attention. This paper will discuss the application and future development of plastic laser welding in energy storage battery projects.
Plastic laser welding technology overview
Plastic laser welding is a new type of welding technology, the principle is to localize the heating of the plastic material through the laser beam, so that it melts, and then cooled to form a weld. Plastic laser welding technology has the advantages of fast welding speed, high welding strength, small welding deformation.
In the energy storage battery manufacturing, plastic laser welding is mainly used for battery shell, battery diaphragm and battery pole welding. Battery shell welding can improve the sealing and strength of the shell; battery diaphragm welding can improve the stability and durability of the diaphragm; battery pole welding can improve the conductivity and firmness of the pole.
Application of plastic laser welding in the energy storage battery project
- Battery shell welding
Battery shell is an important part of the storage battery, its quality directly affects the service life and safety of the storage battery. Plastic laser welding technology can be used for battery shell welding, improve the sealing and strength of the shell.
- Battery diaphragm welding
Battery diaphragm is one of the core components of the energy storage battery, its role is to isolate the positive and negative battery electrodes to prevent short circuit. Plastic laser welding technology can be used for battery diaphragm welding to improve the stability and durability of the diaphragm.
- Battery pole welding
Battery pole piece is an important part of the energy storage battery, and its quality directly affects the performance and service life of the energy storage battery. Plastic laser welding technology can be used for battery pole piece welding, improve the conductivity and firmness of the pole piece.
Plastic laser welding in the energy storage battery project market analysis
Market size
With the expansion of the scope of application of energy storage batteries, the application of plastic laser welding technology in the manufacture of energy storage batteries will also become more and more widespread. According to market research organizations, the global plastic laser welding market size has gradually increased over the past few years 2022, the energy storage industry has exploded with strong growth momentum. The global installed capacity and growth rate of energy storage batteries have risen year by year, and the global market demand for energy storage batteries is huge.Recently, the consulting organization InfoLink announced the global shipment of energy storage batteries in 2022.In 2022, the global shipment of energy storage batteries totaled 142.7 GWh, which is a sharp increase of 204.3% compared with the year 2021.2020-2022. China's energy storage battery shipments are growing at a rapid rate. Especially in 2022, due to the European energy crisis caused by the geopolitical conflict between Russia and Ukraine, overlaid on the domestic power market reform, China's energy storage battery shipments continued the momentum of the previous year's strong growth, and the annual energy storage battery shipments amounted to 130 GWh, an increase of 170.8% year-on-year. The competitive pattern of China's power storage battery industry is more concentrated, and the head effect is more obvious. 2021 China's energy storage battery shipments reached 48Gwh, up 2.6 times year-on-year, and the energy storage battery market share of Ningde Times amounted to 59.7%; BYD ranked the second, with a market share of 16.0% in the storage battery market; AVIC Li-power ranked the third, with a market share of 4.3% in the storage battery market; and Guoxuan Hi-Tech accounted for 4%.
Market Competition
Plastic laser welding technology in the energy storage battery project is facing fierce market competition. At present, the main manufacturers of plastic laser welding equipment in the market include enterprises in the United States, Germany, Japan and China. These companies compete fiercely with each other in terms of technology development, product quality, and market expansion.
Market Trends
With the continuous development of the energy storage battery industry, the application of plastic laser welding technology in energy storage battery projects will show the following trends:
- Continuous improvement and innovation of welding technology to meet the quality and performance requirements of energy storage batteries;
- The popularization and application of automated welding equipment to improve welding efficiency and reduce production costs;
- Plastic laser welding technology will gradually expand the scope of application, will be extended from the battery manufacturing to the battery components and battery system manufacturing process.
Future development of plastic laser welding in energy storage battery project
Technology development
Plastic laser welding technology in the energy storage battery project will continue to improve and innovate to meet the quality and performance requirements of energy storage battery. In the future, plastic laser welding technology will make breakthroughs in welding speed, welding strength, welding deformation and other aspects.
Automation development
Automated welding equipment can improve welding efficiency and quality, reduce labor costs and production costs. In the future, plastic laser welding technology will promote the application of automated welding equipment to meet the needs of energy storage battery production.
New material research
With the continuous renewal of plastic materials, plastic laser welding technology also needs to constantly update the welding material to meet the needs of the production of energy storage batteries. In the future, plastic laser welding technology will develop new welding materials to improve welding quality and efficiency.
New field of application
Plastic laser welding technology in the energy storage battery project will gradually expand the application, will be extended from the battery manufacturing to the battery components and battery system manufacturing process. In the future, plastic laser welding technology will explore applications in new energy vehicles, energy storage and other fields.
