APPLICATIONS
EV Mobility
🚗 Lighter and Safer Future Mobility Made Possible by Eco Almag
Why is ECO-Almag suitable for the electric vehicle mobility industry?
Eco Almag is an ultra-lightweight, high-strength aluminum-magnesium alloy that overcomes the limitations of conventional metal materials. It is an advanced material optimized for electric vehicles and a wide range of mobility applications. Compared to stainless steel, it offers up to 60% weight reduction, significantly improving fuel efficiency and driving range. Its excellent corrosion resistance ensures long-term durability without the need for nickel plating.
In addition, Eco Almag combines 500 MPa-class high strength with excellent formability, enabling the production of complex shapes and integrated parts that were difficult to achieve with conventional aluminum materials. This makes it highly advantageous for key EV components such as battery packs, motor covers, and seat frames, enhancing design flexibility and safety.
Above all, Eco Almag contains no hazardous substances such as beryllium (Be), and it does not generate gas or combustion reactions, making it a safe and environmentally friendly material throughout the production process. When considering weight reduction, durability, manufacturing efficiency, and environmental responsibility in electric vehicles, Eco Almag is the undeniable best choice.
Application of Almag to Cylindrical Battery Case
By replacing the electric vehicle battery cell case material from conventional nickel-plated steel to Eco-Almag (aluminum-magnesium alloy),
more than 9.7g of weight can be reduced per cell, enabling up to 64kg, 14% overall weight reduction acrossthe entire battery system.
| Cell Type (Model) | Standard Case | Eco-Almag Case | Battery Weight Reductio |
|---|---|---|---|
| 2170 (L사 Dream Edition) 118 kWh |
15g/ea (Total: 99kg) |
5.3g/ea (Total: 35kg) |
–64kg (–14%) |
| 4680 (T사 Model Y) 75 kWh |
70g/ea (Total: 58kg) |
25g/ea (Total: 20kg) |
–38kg (–12.9%) |
118 kWh, 458.7 kg (69.5g × 6,600 cells) → Up to 64 kg weight reduction (−14%) achievable
Basis for Battery Weight Calculation
• 2170 Cell: 6,600ea × 15g = 99kg → When Almag is applied 5.3g/ea → 35kg → –64kg
• 4680 Cell: 828ea × 70g = 58kg → When Almag is applied 25g/ea → 20kg → –38kg
Weight Reduction Effect Relative to Total Battery Weight
- 2170: 458.7kg → –14%
- 4680: 293.9kg → –12.9%
※ Slight discrepancies may occur due to rounding.
• 2170 Cell: 6,600ea × 15g = 99kg → When Almag is applied 5.3g/ea → 35kg → –64kg
• 4680 Cell: 828ea × 70g = 58kg → When Almag is applied 25g/ea → 20kg → –38kg
Weight Reduction Effect Relative to Total Battery Weight
- 2170: 458.7kg → –14%
- 4680: 293.9kg → –12.9%
※ Slight discrepancies may occur due to rounding.
Al Mag Application in Car Headrest / Trunk
Eco-Almag has been applied to automotive seat headrest structural components, achieving a 60% weight reduction compared to conventional materials.
It has also been officially selected as a new technology project by Company H.
In addition, the component has passed all reliability tests based on Company H’s internal standards, proving the material’s performance.
Full-scale review is currently underway for application to mass production vehicle models.
Al Mag Compatible with Roll Forming Process
Roll forming is a high-precision metal forming process in which metal coils are continuously passed through rollers to gradually form the desired shape.
This process offers the following advantages, making it highly suitable for mass processing of ultra-lightweight alloy materials like Eco-Almag:
✅ Continuous Forming: Metal coils are processed without interruption → High-efficiency production
✅ Complex Cross-Section Formation: Precisely produces advanced shapes such as C-channels and box structures
✅ High-Speed Automated Production: Enables automation of processes such as forming, cutting, and punching
✅ Cold Working Process: Maintains the material’s structural properties by avoiding heat application
Automotive Structural Application (Golf Cart, Bumper)
Roll forming is a high-precision metal forming process in which metal coils are continuously passed through rollers to gradually form the desired shape.
This process offers the following advantages, making it highly suitable for mass processing of ultra-lightweight alloy materials like Eco-Almag:
