CCTV Interview! The Energy Storage Market Grows Rapidly, Driving Soaring Demand for Laser Welding

Recently, CCTV2 Financial Channel conducted a special interview with the laser industry, focusing on the application upsurge of laser welding technology against the background of the booming energy storage industry. Responsible persons of enterprises in the industry clearly stated in the interview that with the rapid expansion of the energy storage market, the demand for laser welding equipment has shown a sharp growth trend. A single enterprise alone needs to deliver hundreds of related equipment in the third quarter, which intuitively shows the development pattern of in-depth binding between laser welding and the energy storage industry.

Against the backdrop of the global promotion of the "dual carbon" strategy and the transformation of the energy structure, energy storage, as a key hub connecting renewable energy power generation and the power system, has become increasingly prominent in its industrial status and is ushering in a golden period of explosive growth. According to industry data, by the end of 2025, China's cumulative installed capacity of new energy storage reached 144.7GW, a year-on-year increase of 85%; under the neutral forecast, the new domestic energy storage installed capacity is expected to reach 284GWh in 2026, and may exceed 325GWh in an optimistic scenario, accounting for more than 60% of the global total. The huge market scale has directly driven a surge in demand for upstream core manufacturing processes.

As a core process link in energy storage battery production, laser welding directly determines the safety, reliability and service life of energy storage systems, and has become a "key support" for the high-quality development of the energy storage industry. Different from traditional welding processes, laser welding, with its core advantages of high energy density, non-contact processing, narrow heat-affected zone and high welding precision, perfectly meets the core needs of energy storage battery manufacturing—it can not only solve the welding problems of high-reflectivity materials such as aluminum and copper, realize the precise connection of key components such as battery cell tabs, busbars and battery casings, but also avoid damaging the internal diaphragm of the battery cell through precise heat input control, reducing the risk of thermal runaway from the source.

As mentioned in the CCTV interview, an energy storage battery pack is composed of hundreds or thousands of battery cells connected in series or parallel through connecting pieces, involving a large number of aluminum-aluminum, copper-copper and aluminum-copper dissimilar metal welding. Traditional welding methods are prone to defects such as cold welding, cracks and pores.