tesa, the German adhesive tape manufacturer, showcased three automation-ready adhesive solutions for electric vehicle battery production at the Automotive Engineering Exposition 2026 in Yokohama and Nagoya, Japan, targeting OEMs and tier suppliers navigating the shift to electric mobility.

Plasma treatment partnership addresses low-energy surfaces

tesa presented a joint live demonstration with Nihon Plasmatreat, a subsidiary of Plasmatreat GmbH, illustrating how atmospheric pressure plasma surface treatment can increase surface energy and improve wettability on challenging automotive substrates. The demonstration compared treated and untreated substrates using tesa’s PE foam double-sided tape, highlighting how plasma activation can replace chemical pretreatment in select applications.

“As the automotive industry continues to transition toward electric mobility, tesa supports manufacturers with precision engineered adhesive solutions for EV battery production, with a clear focus on process stability and production efficiency,” said Andreas Gunnestrand, President and Regional Manager, tesa tape Asia-Pacific.

Three solutions targeting EV battery and body-shop production

tesa’s dielectric and structural adhesive tapes are engineered for prismatic and cylindrical cell wrapping to prevent electrical discharge, support thermal and fire management, and maintain stable dielectric performance under high-voltage conditions. The tapes offer controlled adhesion and reworkability, allowing adjustments during assembly without compromising long-term reliability.

The tesa® ACXplus Box Seal delivers a watertight seal between the battery pack and lid, protecting against water ingress and corrosion while remaining reopenable for rework or servicing. Requiring no curing time, it is designed for integration into robotic assembly lines with consistent, bead-free output.

tesa® ProSeal automates hole covering in body-shop production, replacing traditional plastic plugs with adhesive patches that reduce component weight by 80 per cent. The system supports robot-ready applicators, fast cartridge changeovers and long-run autonomy suited to high-volume lines.

Deep integration in modern automotive manufacturing

tesa, which has nearly 130 years of adhesive innovation history, noted that modern vehicles can contain up to 130 adhesive applications. The Yokohama and Nagoya showcase forms part of the company’s broader push to position its product range as production-line-ready for next-generation EV manufacturing environments across Asia-Pacific.