For electric vehicle (EV) battery pack engineering directors, vehicle platform architects at OEMs, and procurement managers seeking cost-effective battery enclosure solutions, a persistent engineering challenge remains: the battery tray (enclosure) must simultaneously provide structural protection against crash impact and road debris (critical for fire prevention), contribute to vehicle lightweighting (extending range), integrate thermal management (cooling/heating), and fit within tight cost targets—all while accommodating varying pack sizes and vehicle platforms. Traditional aluminum extruded enclosures or sheet metal stampings struggle with the cost-strength-weight trade-off. Roll formed battery trays directly resolve these pain points by using continuous roll forming of high-strength or ultra-high-strength steel (UHSS) to create modular, high-strength enclosures at significantly lower cost than aluminum. According to the latest industry benchmark, the global market for Roll Formed Battery Tray was valued at USD 213 million in 2024 and is forecast to reach a readjusted size of USD 1,264 million by 2031, growing at an exceptional compound annual growth rate (CAGR) of 27.2% during the forecast period 2025-2031. Global shipments reached approximately 1.295 million units in 2024 and are projected to reach 9 million units by 2031 (CAGR >30%), driven by accelerating EV adoption, cost pressures on OEMs, and the shift toward modular vehicle platforms.
*Global Leading Market Research Publisher QYResearch announces the release of its latest report “Roll Formed Battery Tray – Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032″. Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global Roll Formed Battery Tray market, including market size, share, demand, industry development status, and forecasts for the next few years.*
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1. Product Definition: Continuous-Formed Metal Enclosures for EV Power Batteries
A battery tray (also known as battery enclosure, battery box, or battery housing) refers to a shell or container structure used to hold an EV battery pack. Its design prioritizes multiple critical functions: protecting the battery pack (cells, modules, BMS) from mechanical impact, vibration, and environmental ingress (water, dust); providing structural support and connection to the vehicle chassis; facilitating thermal management (heat dissipation or cooling channels); and enabling convenient installation and maintenance access.
A roll formed battery tray is a metal enclosure structure manufactured by a continuous roll forming process, specifically designed for EV power battery systems. The process uses high-strength steel or aluminum alloy strips (coils) fed through a series of progressive roller dies that bend the material incrementally into a desired cross-sectional profile. The resulting formed components (frames, longitudinal beams, crossbeams) are then welded together—often with a steel bottom plate—to create a complete tray. Key characteristics of roll formed trays include: (1) lightweight – achieved through thin-wall design using high-strength materials; (2) high strength – using UHSS materials (980DP, 1180DP, up to 1500MPa+ tensile strength) provides superior crash protection; (3) modular integration – the same roll-formed profile can be cut to different lengths and widths, enabling multiple enclosure sizes from a single tooling set.
Comparative positioning vs. alternative technologies: (1) vs. aluminum extruded enclosures (profile frame + bottom plate) – roll formed steel provides 30%+ cost reduction and higher strength, but aluminum is lighter (20-30% weight advantage); (2) vs. sheet metal stamping enclosures (one-piece stamped pan with welded crossbeams) – roll forming has higher production efficiency (10%+ faster), lower tooling cost (one set of rollers for multiple sizes vs. model-specific stamping dies), and accommodates ultra-high-strength steels that are difficult to stamp; however, stamping can produce more complex 3D shapes.
2. Industry Development Trends: Steel Gaining Share, China Dominance, and Modular Platforms
Based on analysis of corporate annual reports (Magna International, Forvia, Voestalpine), EV production data, and industry news from Q4 2025 to Q2 2026, four dominant trends shape the roll formed battery tray sector:
2.1 High-Strength and Ultra-High-Strength Steel Adoption Accelerates
The use of advanced high-strength steel (AHSS) and ultra-high-strength steel (UHSS) in roll formed battery trays is the primary performance driver. Materials such as 980DP (dual-phase, 980 MPa tensile strength) and 1180DP (1180 MPa) are now standard; some designs use martensitic steel exceeding 1500 MPa. This strength level enables thinner gauge (0.8-1.5 mm vs. 2-3 mm for aluminum) while maintaining or exceeding crash performance (e.g., protecting battery cells from intrusion in side-impact or bottom-impact scenarios). The weight penalty vs. aluminum has narrowed: a UHSS roll formed tray can be within 10-15% of aluminum weight at 30%+ lower cost. For volume OEMs (e.g., BYD, Tesla, Volkswagen) producing millions of EVs, this trade-off favors steel.
2.2 China Dominates Production and Downstream Market
China occupies the largest downstream market, with a market share exceeding 75% in 2024. Key factors: (1) China produces over 60% of global EVs; (2) Chinese OEMs (BYD, Geely, SAIC, GAC, NIO, Xpeng, Li Auto) are highly cost-sensitive and have rapidly adopted roll formed steel trays; (3) Domestic roll forming suppliers (Suzhou Yichuangte Intelligent Manufacturing, Changzhou Hugestone, Liuzhou Aode Yongxing, Suzhou Prysler, Ningbo Huaxiang Electronic, Lingyun Industrial, Nabaichuan Holding, XD Thermal) have developed competitive capabilities, supplying both local OEMs and international joint ventures. In 2024, the global TOP5 roll formed battery tray manufacturers held >60% market share, with Chinese firms representing 4 of the top 5.
2.3 Regional Material Preference: Steel in China, Steel and Aluminum in EU/US
A notable regional divergence: China has overwhelmingly adopted high-strength steel roll formed trays (cost-driven, with high production volume). The European and North American markets use both steel and aluminum roll formed products, with Novelis (aluminum) recognized as a leader in aluminum roll formed trays. European OEMs (Volkswagen, Mercedes, BMW, Stellantis) often prefer aluminum for premium segments (lightweighting for range) but are increasing steel adoption for volume models. North American pickup trucks and SUVs (high volume, less weight sensitivity) are strong candidates for steel roll formed trays.
2.4 Modular Platforms and “One Tooling Set, Multiple Sizes” Advantage
The roll forming process offers a unique advantage for modular EV platforms. Unlike stamping, which requires dedicated dies for each enclosure size and model, roll forming uses a fixed set of rollers to produce a continuous profile. By cutting the profile to different lengths and welding with different width crossbeams, a single roller tooling set can produce trays for multiple vehicle sizes (e.g., compact, mid-size, SUV, van). This reduces tooling investment and changeover time, enabling flexible manufacturing. As OEMs consolidate multiple models onto common platforms (e.g., Volkswagen MEB, Tesla platform,吉利 SEA), roll forming becomes increasingly attractive.
Industry Layering Perspective: BEV vs. PHEV Applications
- Battery Electric Vehicles (BEV) – Pure electric, larger battery packs (50-100+ kWh), heavier trays. Highest adoption of roll formed steel trays for volume models. Standard tray size for BEVs: 1.2-2.5 meters length, 0.8-1.6 meters width. Structural and crash requirements most demanding.
- Plug-in Hybrid Electric Vehicles (PHEV) – Smaller battery packs (10-20 kWh), smaller trays, less demanding structural requirements. May use stamping or simpler roll formed designs. Also suitable for roll forming but lower volume per platform.
- Others – Mild hybrids (48V), battery swapping systems.
3. Market Segmentation and Competitive Landscape
Segment by Material Type (QYResearch Classification):
- Steel Type – Dominant segment in China (estimated 80-85% of steel roll formed trays globally). Uses high-strength (HSS, 340-780 MPa), advanced high-strength (AHSS, 780-1180 MPa), or ultra-high-strength (UHSS, >1180 MPa) steel. Lower cost than aluminum, higher strength, slightly higher weight. Preferred by volume OEMs and cost-sensitive segments.
- Aluminum Type – Significant segment in Europe and North America. Uses 5xxx or 6xxx series aluminum alloys. Lower weight (20-30% lighter than steel) but higher material cost and lower strength (unless thicker gauge). Novelis is the leading aluminum roll formed tray supplier.
Segment by Vehicle Application:
- BEV – Largest and fastest-growing segment (~80% of volume). Requires highest structural performance and largest trays.
- PHEV – Smaller segment (~15% of volume). Often shares platforms with BEV.
- Others – Hybrid, battery swapping, commercial EVs (~5%).
Key Market Players (QYResearch-identified):
Suzhou Yichuangte Intelligent Manufacturing (China) – Leading Chinese supplier, strong position in domestic OEMs.
Novelis (US/Canada) – Leading aluminum roll formed tray supplier, supplying global OEMs.
Lucky Harvest (China) – Major player in steel trays.
Magna International (Canada) – Global tier-one supplier with roll forming capabilities, supplying multiple OEMs.
Changzhou Hugestone New Energy Technologies (China).
Liuzhou Aode Yongxing Automotive Parts Technology (China).
Forvia (France, formerly Faurecia) – Global tier-one.
Voestalpine Metal Forming GmbH (Austria) – European specialist in roll forming.
Suzhou Prysler Advanced Forming Technology (China).
Ningbo Huaxiang Electronic (China).
XD Thermal (China).
Lingyun Industrial Corporation (China).
Nabaichuan Holding (China).
The market is concentrated, with Chinese suppliers collectively representing >70% of global roll formed battery tray production, reflecting China’s EV manufacturing dominance. International tier-one suppliers (Magna, Forvia, Voestalpine, Novelis) serve primarily European and North American OEMs and premium segments.
4. Exclusive Expert Insights and Recent Developments (Q4 2025 – Q2 2026)
Insight #1 – Cost Advantage Driving Rapid Steel Adoption
According to QYResearch data, roll formed battery trays can reduce component costs by >30% compared to traditional aluminum extruded enclosures. Breakdown: aluminum material cost is 3-4x steel per kilogram; extrusion dies and welding fixtures are more expensive than roll forming rollers; and aluminum requires more complex corrosion protection (conversion coating, e-coat) vs. steel’s simpler phosphate or galvanized coatings. For a typical 80 kWh BEV battery pack, the tray cost difference between aluminum extruded (USD 350-500) and steel roll formed (USD 200-300) is USD 100-200 per vehicle. For an OEM producing 1 million EVs annually, this represents USD 100-200 million in annual savings—a compelling economic case.
Insight #2 – Integrated Thermal Management Features
Next-generation roll formed battery trays are incorporating integrated cooling channels directly into the roll-formed profile (e.g., hollow sections where coolant flows), eliminating separate cooling plates. Suzhou Yichuangte filed patents (January 2026) for a roll formed tray with integrated cooling tubes. Magna International demonstrated a prototype at CES 2026 with roll-formed side beams that double as coolant manifolds. Integrated thermal management reduces parts count, assembly cost, and weight—further strengthening the value proposition of roll formed trays.
Insight #3 – Regulatory Compliance for Bottom Impact Protection
Recent fire incidents involving EV battery packs damaged by road debris have focused regulatory attention on bottom impact protection. China’s Ministry of Industry and Information Technology (MIIT) proposed new standards (March 2026) requiring battery enclosures to withstand a 150mm sphere impact at 500 J without intrusion into cells. Roll formed steel trays, with their high-strength bottom panels and robust crossbeam structures, are well-positioned to meet these requirements more economically than aluminum alternatives.
Typical User Case (Q1 2026 – Chinese Volume EV OEM):
A top-5 Chinese EV OEM (unannounced, estimated 1.5 million units annual volume) transitioned its best-selling BEV model from an aluminum extruded battery tray to a high-strength steel roll formed tray. Results: tray cost reduced by 38% (from USD 420 to USD 260 per unit), weight increased by only 8% (aluminum 35 kg → steel 38 kg), and crash test results improved (side impact intrusion reduced by 12% due to higher steel strength). The OEM realized annual savings of USD 240 million on this model alone, with no measurable range reduction (weight increase <1% of vehicle mass). The OEM has now standardized steel roll formed trays across six additional BEV and PHEV models.
5. Technical Challenges and Future Pathways
Despite rapid growth, technical challenges persist for roll formed battery tray adoption:
- Corrosion protection – Steel requires robust corrosion protection (galvanized coating, e-coat, or Zn-Al-Mg coatings) to ensure 10-15 year vehicle life, especially in regions with road salt. Multi-layer coating systems add cost (USD 15-30 per tray) but are well-understood from automotive body-in-white applications.
- Joining and assembly – Roll formed profiles typically have constant cross-section; joining to end plates, mounting brackets, and the bottom plate requires welding (spot, laser, or MIG). Process validation for high-volume assembly lines is non-trivial but proven in automotive manufacturing.
- Aluminum competition for premium segments – For high-range (>500 km WLTP) premium EVs where every kilogram matters, aluminum remains preferred despite higher cost. Roll formed steel must continue to narrow the weight gap via even higher strength steels (1180→1500→1700 MPa) and thinner gauges.
Future Direction: The roll formed battery tray market will continue its 25-30%+ growth through 2031, driven by: (1) global EV production growth, (2) cost pressure on OEMs (battery cells are gradually commoditizing; enclosures remain a differentiation opportunity), (3) modular platform adoption (where roll forming’s flexibility is valued), and (4) regulatory demands for crash and bottom impact protection favoring steel. Key developments to watch: (1) 1700-2000 MPa martensitic steels enabling sub-1 mm gauges, (2) hybrid steel-aluminum roll formed designs (steel frame, aluminum bottom for weight optimization), (3) fully integrated tray structures (cooling + electrical busbar mounting + shielding), and (4) expanded use in battery swap systems (where trays must withstand repeated mounting/dismounting). For OEMs and tier-one suppliers, roll formed battery trays have proven their value proposition; the question is no longer “if” but “how fast” steel will displace aluminum in volume EV segments.
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