23
2025
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09
What is the technological development trend of lithium battery stacking machines?
Analysis of the development trend of lithium battery stacking machine technology
1. Efficiency improvement and high-speedization
Current lamination technology is achieving efficiency breakthroughs through thermal composite lamination and flying lamination technology (such as Honeycomb Energy's 0.125 seconds per lamination), gradually approaching the 0.6 seconds per lamination level of the winding process. The future goal is to further reduce takt time through multi-station parallel processing, robotic correction, and other technologies. For example, Omron's high-speed vision technology can compress the detection time to less than 100ms.
2. Process innovation and integration
Cutting and stacking machine: reduces the number of pole piece transfer steps and improves yield.
Roll-and-fold machine: Companies such as LG have adopted patented technology that combines the advantages of winding and stacking, but are limited by patent barriers.
Thermal composite laminate 4.0: Hive Energy plans to mass produce it in 2025, with a 50% improvement in stability and a 30% increase in yield.
3. Material and structure adaptation
The lamination process exhibits significant advantages in short-blade batteries (such as the second-generation product from Honeycomb Energy) and large module cells, boosting energy density by 15%-20% and achieving a cycle life 1.5 times that of wound batteries. In the future, it will be adapted to new material systems such as solid-state batteries, driving upgrades in equipment compatibility.
4. Localization and cost optimization
Domestic manufacturers (such as Lead Intelligence and Liyuanheng) have reduced equipment investment costs through technological iteration, with lithium battery equipment orders surging by over 50% year-on-year in the second quarter of 2025. The localization rate of laminators has increased, pushing the penetration rate towards 40%.
5. Intelligentization and flexible production
AI visual inspection: Addressing the precision issue of the long edge dimension (300mm) of the electrode plate, such as achieving a resolution of 0.12mm/pix with the Omron 4-core FH visual controller.
Tension control technology: Optimizes the nonlinear motion of the diaphragm through mathematical modeling to reduce fluctuations.
6. Market application expansion
In the field of power batteries, the lamination process is expected to achieve a penetration rate exceeding 40% by 2025 due to its high safety (passing the needle puncture test) and energy density advantages, especially becoming mainstream in high-end models (such as BMW MINI and Geely Galaxy). The demand for long cycle life in the energy storage market will also accelerate the application of lamination technology.
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