Aluminum Material Solutions for Lithium Battery Production: Shell, Foil & Conductive Plate

The rapid expansion of EV, ESS and consumer lithium battery manufacturing raises strict requirements on raw material purity, deep drawing performance, pinhole control and electrolyte compatibility. As a trusted new energy aluminum supplier, Mingtai delivers a full lineup of battery-grade aluminum materials covering battery casing plates, conductive current collector foils and pouch composite barrier foil. This guide breaks down 1060 battery casing plate, 1050 conductive foil and 8079 composite foil, including purity standards, forming specifications and production suitability for lithium cell factories.

Why Aluminum Is Indispensable For Lithium Battery Manufacturing

Aluminum is the dominant metallic material for lithium batteries, thanks to outstanding electrical conductivity, lightweight property, stable chemical resistance against electrolytes, excellent deep drawability and full recyclability. Unlike many general industrial aluminum, battery-grade aluminum requires ultra-tight impurity control, consistent surface finish and zero micro-pinhole standards. Even tiny defects can trigger leakage, self-discharge or safety risks during cell formation and cycling.

For battery makers, selecting the correct alloy directly impacts yield rate, forming scrap ratio and long-term battery performance. Many cell producers source multiple aluminum grades from separate vendors; our one-stop supply simplifies procurement, QC validation and bulk delivery for large new energy production lines.

1. 1060 Aluminum Plate for Lithium Battery Casing

Alloy: 1060 

1060 is the mainstream high-purity aluminum plate selected for prismatic lithium battery shell, module housing and structural cover plates, with minimum aluminum purity ≥99.6%. Controlled trace impurities guarantee stable electrochemical performance and avoid adverse reactions with internal electrolyte.

Key technical highlights for battery casing production:

• Superior deep drawing & cold forming capacity, suitable for complex shell stamping without cracking or orange peel surface

• Uniform grain structure, stable dimensional tolerance after deep forming

• Good post-forming cleaning, welding and surface treatment performance

• Excellent corrosion resistance to organic electrolytes

Typical applications: Prismatic cell shells, battery module cover plates, energy storage battery housing, power battery structural supporting plates.

2. 1050 Conductive Aluminum Foil (Cathode Current Collector Foil)

Alloy: 1050-O / H18 

1050 aluminum foil is the classic cathode current collector material for lithium-ion batteries, aluminum content ≥99.5%. It balances high conductivity, ductility and cost efficiency, widely adopted across consumer batteries, e-bike batteries and low-to-medium power energy storage cells.

Core requirements for battery-grade conductive foil:

• Ultra-clean surface, free from oil stains, scratches and foreign particles

• Consistent thickness uniformity, stable resistance across the whole coil

• Good coating adhesion for cathode active slurry

• Flexible for slitting into custom widths to match your coating machine

This grade is preferred by factories with stable coating and calendaring processes, seeking reliable, cost-effective current collector aluminum foil.

3. 8079-O Composite Barrier Foil for Soft Pouch Lithium Cells

Alloy: 8079-O 

8079 soft temper aluminum foil is the premium barrier substrate for lithium pouch packaging film (aluminum plastic film). It features ultra-low pinhole rate, high elongation and outstanding deep drawability — the critical performance to form the deep cavity of soft-pack cells without rupture during cold forming.

Key advantages for pouch battery production:

• Near-zero pinhole performance to block moisture, oxygen and electrolyte penetration

• High ductility for 3D deep drawing forming of soft cell pockets

• Stable bonding strength with PA / CPP plastic layers after compounding

• Strict surface roughness control for reliable lamination yield

8079 foil is widely used in lithium polymer batteries, portable power packs and special soft-pack energy storage cells, where airtight barrier and forming yield are top priorities.

Comparison Table: Battery Aluminum Grades Quick Reference

Our Quality Control Standard for New Energy Aluminum

All Mingtai battery aluminum materials follow battery-specific production workflows:

• Strict molten metal purification to limit harmful impurity elements

• Surface inspection with automated online detection for pinholes, scratches and oil marks

• Mechanical property & forming performance batch testing before shipment

• Custom temper, thickness, width and slitting service to match your production line

• Full material test certificate (MTC) supplied with every bulk order

We support trial small-batch sampling for lab validation, then scale up to ton-level bulk supply once your R&D and production teams confirm qualification. 

Common Application Scenarios of Our Battery Aluminum Materials

• Electric vehicle power battery prismatic shells

• Energy storage BESS battery modules and pouch cells

• Portable power station / consumer electronics lithium polymer batteries

• E-bike, two-wheeler lithium battery production

• Custom new energy battery prototype development

FAQ

Q1: Can I mix these three grades in one order?

A: Yes. We support mixed container shipments for 1060 casing plate, 1050 conductive foil and 8079 barrier foil to help you consolidate your battery raw material supply chain.

Q2: What’s the MOQ for battery-grade aluminum?

A: Standard bulk MOQ is metric ton quantity; small trial rolls / sheets are available for your laboratory and pilot line testing.

Q3: Are your battery aluminum materials available with MTC for battery factory audit?

A: Every shipment comes with official material test certificates, chemical composition and mechanical property reports for your incoming QC and customer audit.

Q4: Can you customize thickness and slit width?

A: Fully custom slitting, cutting and thickness options for casing plates and aluminum foils, matching your stamping, coating and laminating equipment.

Looking for a reliable long-term aluminum raw material supplier for your lithium battery factory? Contact Mingtai to get technical datasheets, sample arrangements and competitive wholesale pricing for 1060 battery aluminum plate, 1050 conductive foil and 8079 pouch barrier foil.