At present, the most common thermally conductive structural adhesives for EV battery cell bond are polyurethane (PU) and epoxy based products. These two products are supplied at an extreme low price of USD15/kg approx. Do you believe that these are auto grade products and are reliably for EV applications?

It is quite responsible to say that the technology of PU and epoxy based products have fallen far behind for EV battery cell bond as the thermally conductive structural adhesives. As the saying goes, “Involvement earlier doesn’t mean well done”. The charming of innovation is to push your llimits and continuously break through.

GLPOLY has spent four years developing XK-D series of thermally conductive structural adhesives from project approval to production, verification items and methods were based on customers’ designs and application requirements. GLPOLY improved thermal performance and bonding strength of products by unique material modification technology.

Actually, GLPOLY had made simulations on PU and epoxy products, the thermal conductivity of PU and epoxy based thermally conductivity structural adhesives were less than 1.0W/mK after curing, furthermore, the bonding strength was decreased by 40% after ageing test for 500 hours. How could you use such a unreliable product on battery pack of emerging electric vehicles.

GLPOLY thermally conductive structural adhesives covers a range of thermal conductivity, 1.2W/mK, 2.0W/mK and 3.0W/mK meeting diverse design requirements, and provides 8MPa bonding strength at least keeping bond safe.

GLPOLY has collaborated with leading enterprises such as Huawei, DJI, DT Mobile, LISHEN Battery, GAC Motor, NIO Motor and more, providing them with time-tested knowledge and advanced thermal interface materials.

GLPOLY serves top ten players in each industry.