AL 3003 H14 Deep Draw Prismatic Battery Cans – High-Performance Aluminum Solution for EV Power Cells | Gwangyang Aluminum

Introduction: The Critical Role of Prismatic Battery Cans in EV Performance

As the electric vehicle market continues its rapid expansion – with over 16.5 million EVs sold in 2021 alone– the demand for reliable, high-performance battery components has never been greater. Among these components, the prismatic battery can (the external aluminum casing that houses lithium-ion cells) plays a critical role in ensuring battery safety, structural integrity, and long-term reliability. These cans must withstand mechanical stress, thermal cycling, and potential crash loads while maintaining a hermetic seal over the battery’s lifetime.

AL 3003-H14 has emerged as the material of choice for deep-drawn prismatic battery cans, offering the ideal balance of formability, strength, and corrosion resistance. As a leading Korean manufacturer, Gwangyang Aluminum supplies premium 3003-H14 aluminum sheet specifically engineered for prismatic battery can production, serving EV battery manufacturers worldwide.

What is AL 3003 H14 and Why is it the Preferred Choice?

AL 3003 is an aluminum-manganese alloy (Al-Mn series) with manganese content of approximately 1.0–1.5%. The H14 temper indicates a strain-hardened “half-hard” condition, providing an optimal balance of strength and formability for demanding deep drawing applications.

Key characteristics of 3003-H14 for prismatic battery cans:

• Excellent deep drawability – The H14 temper retains sufficient ductility (elongation of 8–16% ) while providing the strength needed for structural integrity. This enables multi-stage deep drawing and ironing processes to form rectangular prismatic shapes without cracking.

• Moderate tensile strength – Tensile strength of 145–195 MPa and yield strength of ≥125 MPa provide the structural rigidity needed to protect battery cells.

• Superior corrosion resistance – The manganese-enhanced alloy composition forms a natural oxide layer that withstands harsh environments, moisture, and electrolyte exposure.

• Lightweight performance – With a density of approximately 2.73 g/cm³, 3003 aluminum is significantly lighter than steel, contributing to overall vehicle weight reduction and extended driving range.

• Excellent weldability – 3003 aluminum offers good weldability, enabling reliable sealing and assembly processes.

Deep Drawing Performance: The Key to Prismatic Battery Can Manufacturing

Prismatic battery cans are typically produced through multi-stage deep drawing and ironing processes. The aluminum sheet must be formed into precise rectangular shapes with consistent wall thickness and dimensional accuracy – a demanding process that requires exceptional material formability.

Why 3003-H14 excels in deep drawing applications:

1. Balanced Strength and Ductility

The H14 temper is specifically designed for applications requiring moderate strength while retaining excellent formability. It strikes the ideal balance between workability and final-part strength, making it suitable for deep drawing operations where the material must stretch significantly without cracking.

2. Predictable Thinning Behavior

During multi-stage deep drawing, thickness variation must be carefully controlled to ensure uniform wall thickness and prevent excessive thinning or fracture. Studies on 3003-H14 square lithium battery shells have demonstrated that the material’s behavior can be accurately predicted using advanced material models, enabling optimization of forming parameters to prevent failure.

3. Consistent Mechanical Properties

The material presents positive strain rate sensitivity and consistent work-hardening behavior, ensuring predictable deformation during high-speed forming operations. This consistency is critical for high-volume production lines where reliability and repeatability are paramount.

4. Resistance to Cracking and Leakage

Battery cans made from 3003 aluminum sheet exhibit excellent stamping and stretchability, are resistant to impact, and are not prone to breaking or leaking. This ensures the battery remains hermetically sealed throughout its service life.

Applications in Electric Vehicle and ESS Batteries

3003-H14 deep-drawn aluminum cans are the standard solution for:

• Prismatic lithium-ion battery cells – The dominant format for EV traction batteries

• Energy storage system (ESS) battery modules – Stationary storage applications

• Lithium iron phosphate (LFP) battery cells – High-safety, long-cycle applications

• Electric vehicle power battery packs – Automotive traction batteries

Compared to steel shells, aluminum cans are lighter, can be made thinner, and offer significant safety performance advantages. The aluminum shell (except the shell cover) of a 3003 aluminum alloy power battery can be stretched and formed in a single operation, eliminating the welding process required for the bottom of steel shell boxes.

Technical Specifications – Prismatic Battery Can Grade

Why Choose Gwangyang Aluminum for Prismatic Battery Cans?

1. Leading Korean Manufacturer with Global Reach

Established in 2019 and headquartered in Gwangyang-si, Jeollanam-do, Korea, Gwangyang Aluminum operates a 50,000 sq.m. facility equipped with cutting-edge rolling mills and annealing furnaces. We specialize in 1000–8000 series aluminum sheets, coils, and checker plates.

2. ASTM B209 & AMS Compliance

Our 3003-H14 sheets comply with ASTM B209 and AMS standards, ensuring superior tensile strength (145–195 MPa) and elongation properties.

3. Proven Deep Drawing Performance

Our 3003-H14 aluminum sheets are specifically engineered for deep drawing, welding, and machining applications, with the balanced strength and ductility required for prismatic battery can production.

4. Factory-Direct Supply & Customization

We offer factory-direct pricing and flexible customization options – thickness from 0.2mm to 6mm, widths up to 2,500mm, and various surface finishes. Our flexible MOQs accommodate both startups and large-scale manufacturers.

5. Quality Certifications

Gwangyang Aluminum is ISO 9001, ISO 14001, and SGS-tested for quality assurance.

Conclusion

For EV battery manufacturers seeking a reliable, high-performance material for prismatic battery cans, AL 3003 H14 deep draw aluminum sheet from Gwangyang Aluminum delivers the formability, strength, and corrosion resistance that modern battery production demands. With ASTM B209 compliance, factory-direct supply from Korea, and proven deep drawing performance, Gwangyang Aluminum is your trusted partner for prismatic battery can solutions.

Contact Gwangyang Aluminum today for free samples, technical data sheets, or a factory-direct quotation.

FAQ – AL 3003 H14 Deep Draw Prismatic Battery Cans

Q1: What is the typical thickness of 3003-H14 aluminum sheet used for prismatic battery cans? A: Typical thickness ranges from 0.8 mm to 3.0 mm, depending on the specific battery cell design and capacity requirements.

Q2: Why is 3003-H14 preferred over other alloys for prismatic battery cans?

A: 3003-H14 offers the ideal balance of formability for deep drawing, moderate strength for structural integrity, and excellent corrosion resistance for long-term battery protection. It is also lightweight and cost-effective compared to other alloys.

Q3: What is the elongation of 3003-H14, and why does it matter for deep drawing?

A: 3003-H14 offers elongation of 8–16% . This ductility is essential for multi-stage deep drawing processes, allowing the material to stretch and form into complex prismatic shapes without cracking.

Q4: What standards does Gwangyang Aluminum‘s 3003-H14 sheet meet?

A: Gwangyang Aluminum‘s 3003-H14 sheets comply with ASTM B209 and AMS standards, ensuring superior tensile strength and elongation properties.

Q5: Can Gwangyang Aluminum supply 3003-H14 sheet in custom dimensions?

A: Yes. Gwangyang Aluminum offers custom thicknesses from 0.2mm to 6mm and widths up to 2,500mm.

Q6: What certifications does Gwangyang Aluminum hold?

A: Gwangyang Aluminum is ISO 9001, ISO 14001, and SGS-tested for quality assurance.

Q7: What is the minimum order quantity?

A: Gwangyang Aluminum offers flexible MOQs to accommodate both startups and large-scale manufacturers. Contact our sales team for specific requirements.

Q8: How is the material packaged for shipment?

A: Coils and sheets are packaged with standard export packaging to protect the surface during transit. Custom packaging options are available upon request.

Gwangyang Aluminum – Prismatic Battery Can Materials Division

Phone: +82 (0)61-762-6699

Email: gwangyangaluminum@gmail.com

Website: www.gyal.co.kr

Address: 266 Sepungsandan Road, Gwangyang-Eub, Gwangyang-Si, Jeollanam-Do, Republic of Korea