Structural Battery Enclosures Adopting Composite Housings
Battery enclosure design is shifting from stamped steel trays toward sheet molding compound and glass fiber composite housings that cut assembly mass by up to 40 percent while meeting thermal runaway containment standards under UN R100 and GB 38031. Six major EV platforms launched since 2024 specify composite battery trays as standard, up from a single reference design in 2021. Suppliers report enclosure programs now represent the fastest-growing single application category within the broader composites portfolio, ahead of body panels and interior trim combined, and expect the gap to widen further through 2028.
Market Impact: Improves range 6 to 8 percent








