Studies shows that there is a vital defect on application of polyurethane in EV battery pack-poor performance and reliability after ageing test. In 85 Celsius degree, RH85% simulation test on PU for 500hours that carried out by GLPOLY, mechanical property, shear/tensile strength, thermal performance decreased by 40%, and 4-year service life and a car recall were predicted.

Polyurethane adhesives has been developed and launched for decades, today, it has fallen behind, and is really unqualified for auto, rail transit or military equipment due to low performance, bonding strength and short service life. Inevitably, it will become obsolete in the coming future.

GLPOLY abandoned polyurethane technology from the beginning and explored  new roadmap---modified epoxy. After four-year research and trial on formulae, GLPOLY R&D team has completed theory and verification, launching XK-D series of thermally conductive structural adhesives. This is a patented new material with a 25-year service life designed for EV battery cell bond.

GLPOLY XK-D series of thermally conductive structural adhesives has features and benefits as following:

1. Thermal conductivity 1.2-3.0W/mK, covering diverse application requirements; rivals are struggling against 2.0W/mK thermal conductivity;

2. Bonding strength 8MPa, twice as strong as competitive products;

3. 25-year service life, but for polyurethane products, 4-5 year service life is predicted;

GLPOLY thermally conductive structural adhesives have been applied in trial production in leading enterprises such as NIO Motor, Lixiang Motor, LISHEN Battery, Farasis Energy and more.

It’s time to eliminate obsolete technology and try emerging material, GLPOLY is ready to help you solve thermal management challenge of EV“CTP” battery pack with comprehensive support and proven technology.