Title: SolvaLite® 716FR: A Rapid Cure Self-extinguishing Epoxy System for Battery Enclosures

Authors: Rhys J. Tapper, Robert Bell, Stephen Jones, Mark Harriman

DOI: 10.33599/nasampe/s.24.0241

Abstract: Composites offer an attractive range of benefits for electric vehicle battery enclosures over incumbent metal designs. However, the thermal protection requirements (self-extinguishing and thermal runaway) present substantial barriers to entry into this application. Syensqo, previously part of Solvay group, have developed SolvaLite® 716FR, a rapid curing epoxy prepreg system that is designed to meet the thermal challenge. It exhibits UL94 V-0 self-extinguishing performance over a thickness range of 1 – 3 mm and across multiple product formats suitable for the application. It also passed the UL2596 Battery Enclosure Thermal Runaway (BETR) test, at 2 mm gauge and higher, with thinner gauge laminates under evaluation.

References: 1.G Poterala, High Voltage Battery Composite Design – Beyond Lightweighting. SPE Automotive Composites Conference 2022 2.GB38031-2020 Electric vehicles traction battery safety requirements. 3.Solvay, SolvaLite® 716FR Press Release, https://www.solvay.com/en/press-release/solvay-launches-new-solvalite-grade-superior-flame-retardancy-battery-enclosures 4.UL94 Test Standard, available from the UL portal. 5.UL2596 Test Standard, available from the UL portal

Conference: SAMPE 2024

Publication Date: 2024/05/20

SKU: TP24-0000000241

Pages: 9

Price: $18.00