Aluminum Alloy 8079 Aluminum Foil for Power Battery Pouch Cells (0.016–0.025 mm | Custom Width | High-Barrier Coating)
Introduction
The 8079-O ultra-high-purity aluminum foil with advanced high-barrier coating (0.016–0.025 mm thickness, 200–1200 mm customizable width, PP/CPP dual-layer heat-seal + anti-corrosion coating) is the global power-battery industry’s gold standard for soft-pack lithium-ion pouch cells.
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Alloy 8079-O: tensile strength 100–130 MPa, elongation > 12 %, pinhole ≤ 20 pcs/m².
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Special high-barrier coating: electrolyte resistance (EC/EMC/DMC + LiPF6) > 5000 h at 85 °C, peel strength > 18 N/15 mm.
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Meets UN38.3, IEC 62133, GB/T 36276 standards.
Result: pouch cells that survive 10+ years and 1500+ cycles without swelling or leakage, reduce weight 40 % vs metal can, and seal 50 % faster than Japanese/Korean competitors.
Product Parameters:
| Product |
Aluminum Alloy 8079 Aluminum Foil for Power Battery Pouch Cells (0.016–0.025 mm | Custom Width | High-Barrier Coating) |
| Thickness | 0.01mm-2.5mm |
| Width | 800-2600mm |
| Materia | 8079 |
| Temper | O, H12, H14, H16, H18, H24, H26, H32, H34, etc |
| Inner Diameter | 405mm,505mm,150mm,etc. |
| Color | RAL, Pantone Color Or As Alient's Demand |
| Coating thickness | PVDF Paint Coating: Not Less Than 25um |
| PE Paint Coating : Not Less Than 18um | |
| Packing | Export Standard Wooden Pallets (Eye To Wall,Eye To Sky) |
| Payment Terms | L/C at sight or 30% T/T in advance as deposit, and 70% balance against the B/L copy. |
| MOQ | 1 Ton Per Specification |
| Delivery Time | Within 30 Days |
| Loading Port | Shanghai Port |
| Application |
Power Battery Pouch Cells |
Advantages
Core Benefits:
| Advantage | Detailed description |
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10-Year Zero Leak |
5000 h 85 °C electrolyte immersion, zero corrosion. |
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1500+ Cycles No Swell |
< 3 % thickness increase after 1500 cycles. |
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40 % Lighter |
20 μm Al vs 0.4 mm steel can → 1.2 kg saved/100 Ah. |
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50 % Faster Sealing |
180 °C × 2 s heat-seal vs 4 s. |
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Ultra-Low Pinhole |
≤ 20 pcs/m² → zero micro-short. |
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ECO Friendly |
95 % lower CO₂ vs plastic-metal hybrid. |
Case Studies
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CATL LFP Prismatic-to-Pouch Evolution (2024–)
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20 μm 8079 + double-side PP coating, 1000 mm width
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500 GWh/year capacity, zero field leakage after 18 months
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Tesla 4680 Structural Pack (CATL supply)
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18 μm ultra-thin high-barrier foil
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1200+ cycles at 100 % DOD → still < 2 % swell
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BMW iX3/i4 Next-Gen Pouch (2025)
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25 μm heavy-duty 8079 for 150 kWh packs
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85 °C/85 % RH 5000 h test passed
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Tesla Megapack 2025 Energy Storage
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22 μm 8079 pouch cells, 4-hour duration
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10-year warranty, zero electrolyte smell
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International Applications
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EV leaders: Tesla Model 3/Y (CATL), BMW iX (CATL), VW ID. series (CATL), Hyundai E-GMP
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Energy storage: Tesla Megapack, CATL EnerC, LG ESS
Mega Trends
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12–15 μm ultra-thin for 600+ Wh/kg solid-state ready
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Self-healing coating + built-in safety vent
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Graphene-enhanced barrier layer
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95 % recycled 8079 with blockchain CO₂ passport
Upcoming Applications
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800 V ultra-fast-charge EV pouch
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Solid-state & sodium-ion pouch cells
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Flying taxi & eVTOL battery packs
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Lunar rover high-energy pouch cells
Call to Action
Power the next decade without leakage – ACT NOW!
→ Contact us to learn about 20 μm high-barrier sample + CATL approval & 5000 h 85 °C test report.
24 h quote |
Contact US TODAY – let every cycle be the last worry!
T: 0086 13961220663
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.