High-performance ene-thiol-acrylate photoresins suited for fabrication lightweight battery compartments of electric vehicles

摘要

With the development of electric vehicles, the limited driving range has become a bottleneck to restrict the development of electric vehicles. Lightweight is one of the effective methods to increase the driving range. In this study, the ene-thiol-acrylate (ETA) photosensitive resins are used for top-down 3D printing to fabricate lightweight battery compartment of electric vehicles. Results show that the battery compartment of 3D printing possesses desirable mechanical and thermal properties, such as heat deflection temperature (HDT) reach to 219 degrees C under 1.82 MPa, excellent flame retardation property (limit oxygen index (LOI) is 34% without any inorganic flame retardants) and outstanding heat dissipation performance. Moreover, the introduction of a small quantity of secondary mercaptan can enhance appreciably mechanical performances and thermal properties of the photosensitive resins, at the same time, the problem of storage stability for ETA resins has been solved. This approach for the fabrication of lightweight electric vehicles with appropriate performances in a simple way provides a better alternative.

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