- Dongwon Systems will showcase primer-coated aluminum foil designed to improve cathode material adhesion.
- The company is preparing mass production of next-generation cylindrical battery cans using DWI manufacturing.
Dongwon Systems Co., Ltd. will present its Dongwon Systems primer-coated aluminum foil for cathodes at InterBattery 2026, scheduled from March 11 to 13 in Seoul, South Korea. The material technology is engineered to improve bonding strength between cathode plates and active materials used in lithium-ion batteries. By applying a carbon-based primer layer to standard aluminum foil, the solution addresses a common durability issue where active materials detach from cathode structures during operation, thereby supporting improved battery reliability and performance.
Primer-Coated Foil Designed to Improve Cathode Stability
The newly developed primer-coated foil enhances electrode durability by strengthening the interface between the aluminum current collector and cathode active materials. The carbon-based primer layer promotes stronger adhesion while maintaining the electrical characteristics required in modern battery cells. This approach reduces the risk of material separation that can occur during repeated charge-discharge cycles, which is critical for maintaining consistent battery output and longevity in advanced energy storage applications.
Next-Generation Cylindrical Battery Can Production Strategy
Alongside the material innovation, the company will also display its cylindrical battery can manufactured using the Draw and Wall-Ironing (DWI) method. Compared with traditional press-forming processes, the DWI technique shortens production stages and lowers overall manufacturing costs. Dongwon Systems plans to begin mass production of its next-generation cylindrical battery cans by the end of 2026, enabling large-scale supply to battery manufacturers seeking efficient and cost-optimized cell component solutions.
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