The high-flexibility compressible structure can absorb vehicle driving vibration and assembly tolerance, avoid thermal interface separation and gap failure, and ensure long-term consistent heat transfer between battery modules and cooling plates. Adopting halogen-free low-corrosion formula, it achieves zero silicone oil leakage and zero volatile precipitation, will not corrode battery circuits and metal structures, and improves the overall safety and service life of battery packs. It has excellent electrical insulation and flame retardant properties, fully compliant with UL safety and RoHS environmental standards, effectively preventing battery thermal runaway and short-circuit risks. Custom thickness, shape and back adhesive processing can be carried out according to battery pack structural drawings, realizing modular integrated assembly and improving the production efficiency and operational safety of new energy vehicles.