InnosionTech is drawing attention for its plasma nano-composite coating technology applied to core components in the battery electrode manufacturing process.
Founded in Jun. 2019, the company was launched by CEO Hong Jeong-gi, a materials engineering major, based on surface treatment experience accumulated while working at a government-funded research institute.
InnosionTech aims to be not just an equipment manufacturer but an R&D-centered surface treatment specialist. Its core technology, "Ternary 3C coating," is a dedicated coating solution to protect the roller surfaces of secondary battery electrode production equipment. In conventional processes, wear, chipping, corrosion, and galling on rollers led to lower productivity and higher defect rates.
The company developed a nano-composite coating by leveraging its own plasma equipment and process technology, applying a hybrid convergence discharge-based ion shielding induction device.
The technology implements high hardness, low friction, chemical resistance, release properties, and heat resistance on surfaces to enhance equipment durability and stability. As a result, it lowers defect rates on production lines and reduces maintenance expense, contributing to lower manufacturing costs.
The company's technology can replace conventional plating with an eco-friendly method and is evaluated as ESG-based process innovation.
InnosionTech's edge lies in large-area plasma coating technology. While typical plasma equipment is limited to surface treatment of small parts, the company can handle large-area processes measuring 5 meters or more.
With nanoscale precision control, it achieves uniform thin-film thickness and composition, creating high-density, highly durable surfaces. InnosionTech supplies plasma technology not only as equipment but also combined with materials and services in a "coating integrated package."
The company is working with major domestic and overseas battery manufacturers. LG Energy Solution, Samsung SDI, and SK Microworks are key customers, and in the global market it has supplied parts to Panasonic.
CEO Hong said, "Competition in battery manufacturing is a battle over defect rates and lifespan management," adding, "By precisely controlling reactions on electrode surfaces with plasma, we can differentiate in quality uniformity and long-term stability."
InnosionTech's cumulative investment stands at 16 billion won, and it is currently at the Series B stage. The company signed a listing lead-manager contract with Daishin Securities Co., and its total assets amount to about 20 billion won.
InnosionTech is pushing to establish a U.S. subsidiary in the second half of this year and is also considering setting up a European subsidiary next year. Once technology verification with overseas clients is completed, it plans to strengthen on-site responsiveness.
CEO Hong said, "We aim to go public within three years and expand our local customer base in the U.S. and European markets."
Following the secondary battery field, the company is also preparing to enter the aerospace industry. InnosionTech has recently achieved results in coating processes for dry battery components and is expanding into coating technologies for high-durability parts such as rockets and satellites.
Hong explained, "For heat and wear resistance in extreme environments, plasma technology is the most effective," adding, "Aerospace parts coating is a new market where we can validate our technological capabilities."