Battery supporting materials
Customizable Width High Precision Aluminum Strip for Battery Fabrication and Advanced Materials Research
Item Number : FZ39
Price varies based on specs and customizations
- Thickness Range & Tolerance
- 0.05 mm – 0.5 mm (Precision grade down to ±0.005 mm)
- Available Temper States
- O, H12/H22, H14/H24, H16/H26, H18
- Chemical & Quality Compliance
- GB/T 3190-1996 Standard
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Product Overview
This high-precision aluminum strip is an engineered foil material designed to meet the rigorous physical, mechanical, and electrical requirements of advanced battery cell fabrication, capacitor manufacturing, and materials research. Formulated in full compliance with GB/T 3190-1996 chemical composition standards, the material provides an optimal balance of electrical conductivity, structural integrity, and exceptional surface uniformity. It serves as a foundational current collector and lead tab substrate, enabling consistent electrochemical performance across both experimental and production environments.
Tailored for precision slitting and flexible integration, this strip material features a fully customizable width profile alongside ultra-tight thickness tolerances ranging from 0.05 mm to 0.5 mm. Whether deployed in automated lithium-ion pouch cell winding, prismatic terminal connections, or high-frequency electronic shielding, the product provides dependable mechanical ductility and controlled hardness. Its reliable formability minimizes micro-fracturing and delamination during high-speed feeding, ultrasonic welding, and tight radius bending operations.
Manufactured under stringent quality management protocols, the aluminum strip guarantees outstanding metallurgical stability and flatness across diverse temper grades, from fully annealed O-temper to high-strength H18 work-hardened states. Its controlled edge curvature and tight dimensional tolerances prevent tracking errors, ensuring seamless operation in precision roll-to-roll calendering, automated winding, and cleanroom cell assembly workflows.
Key Features
- Comprehensive Temper Selection: Available across annealed O-temper and work-hardened temper states (H12/H22, H14/H24, H16/H26, and H18), delivering tensile strengths from 45 N/mm² to over 125 N/mm² to match exact stamping, winding, or structural stiffness requirements.
- Precision Dimensional Control: Features two distinct tolerance classes—Standard and High-Precision grade—achieving thickness consistency down to ±0.005 mm on ultra-thin gauges, preventing localized current crowding and uneven stress distribution.
- Fully Customizable Width Profiles: Slit to exacting customer dimensions from narrow ribbon formats (2 mm) to wide foil rolls (over 200 mm), reducing scrap rates and eliminating secondary processing steps for cell manufacturers.
- Strict Camber and Edge Straightness: Controlled lateral curvature (side bending degree ≤1 mm/m for narrow widths and ≤3–5 mm/m for wider formats) ensures flawless feeding through high-speed automated winding and slitting machinery without edge jamming.
- Exceptional Bending Endurance: Withstands rigorous 180° repeated bending cycles without surface cracking or structural delamination, providing vital reliability for flexible pouch cell tab leads and dynamic structural interconnects.
- Verified Hardness Consistency: Carefully calibrated Vickers hardness ranges (from <25 HV in soft O-temper up to >45 HV in hard H18 temper) ensure predictable deformation, punch burr minimization, and repeatable ultrasonic weldability.
- Standardized Metallurgical Purity: Fully compliant with the chemical composition standards of GB/T 3190-1996, eliminating harmful trace impurities to safeguard chemical stability in corrosive electrolyte environments.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Lithium-Ion Battery Cathode Tabs | Functioning as positive terminal current lead tabs in pouch and prismatic battery cells. | Excellent electrical conductivity and defect-free ultrasonic weldability to aluminum current collector foils. |
| Supercapacitor Terminal Leads | Interconnecting electrode stacks in high-power electric double-layer capacitors (EDLC). | Low internal equivalent series resistance (ESR) and high mechanical endurance during high-rate cycling. |
| Precision Calendering & Coating R&D | Serving as standardized substrate strip for thin-film slurry coating and roll pressing trials in battery laboratories. | Exceptional thickness uniformity and surface cleanliness ensure reproducible active material layer deposition. |
| Electronic Component Shielding | Acting as lightweight electromagnetic interference (EMI) and radio-frequency shielding ribbon in electronics. | High purity aluminum provides continuous conductivity and flexible conformability around intricate geometries. |
| Transformer & Inductor Foil Windings | Replacing traditional magnet wire in high-frequency power transformers and compact electrical inductors. | Superior packing factor, reduced skin effect losses, and high thermal dissipation in compact electronic designs. |
| Flexible Interconnects & Busbars | Providing low-profile, flexible bridge conductors across multi-cell modular battery packs. | High fatigue resistance during repeated 180° bending avoids work-hardening fracture during pack expansion cycles. |
Technical Specifications
Material Grade & Chemical Compliance
| Parameter | Value / Compliance |
|---|---|
| Base Product Identifier | FZ39 Series |
| Material Type | High-Purity Industrial Aluminum Strip |
| Chemical Composition Standard | GB/T 3190-1996 |
| Available Delivery Form | Precision Slit Coil / Spool / Reel (Width Customizable) |
Thickness and Width Tolerances
| Thickness Nominal Range (T, mm) | Thickness Tolerance: High Precision Grade (± mm) | Thickness Tolerance: Standard Grade (± mm) | Width Tolerance: 2≤W<10 mm (± mm) | Width Tolerance: 10≤W<50 mm (± mm) | Width Tolerance: 50≤W<100 mm (± mm) | Width Tolerance: 100≤W<150 mm (± mm) | Width Tolerance: 150≤W<200 mm (± mm) | Width Tolerance: 200≤W (± mm) |
|---|---|---|---|---|---|---|---|---|
| 0.05 ≤ T < 0.1 | 0.005 | 0.008 | 0.05 | 0.10 | 0.15 | 0.20 | 0.30 | 0.50 |
| 0.1 ≤ T < 0.2 | 0.008 | 0.010 | 0.08 | 0.10 | 0.12 | 0.15 | 0.30 | 0.50 |
| 0.2 ≤ T < 0.3 | 0.010 | 0.012 | 0.10 | 0.15 | 0.25 | 0.50 | 0.80 | 1.00 |
| 0.3 ≤ T < 0.4 | 0.012 | 0.015 | 0.10 | 0.15 | 0.25 | 0.50 | 0.80 | 1.00 |
| 0.4 ≤ T < 0.5 | 0.015 | 0.025 | 0.10 | 0.15 | 0.25 | 0.50 | 0.80 | 1.00 |
Camber (Edge Straightness / 侧弯度)
| Width Category (W, mm) | Maximum Allowable Camber (mm/m) |
|---|---|
| 2 ≤ W < 10 | ≤ 1.0 |
| 10 ≤ W < 50 | ≤ 3.0 |
| 50 ≤ W < 100 | ≤ 3.0 |
| 100 ≤ W < 150 | ≤ 5.0 |
| 150 ≤ W < 200 | ≤ 5.0 |
| 200 ≤ W | ≤ 5.0 |
Mechanical Properties & Bending Performance
| Series Model Code | Temper State | Nominal Thickness (mm) | Tensile Strength Rm (N/mm²) | Minimum Elongation A (%) | 180° Repeated Bending (Min Cycles) | Bending Test Requirement | Vickers Hardness (HV) |
|---|---|---|---|---|---|---|---|
| FZ39-O | O | 0.050 – 0.089 | 45 – 100 | ≥ 4 | ≥ 8 | No cracks or delamination at bend | < 25 |
| FZ39-O | O | 0.090 – 0.139 | 50 – 100 | ≥ 6 | ≥ 8 | No cracks or delamination at bend | < 25 |
| FZ39-O | O | 0.140 – 0.200 | 50 – 100 | ≥ 10 | ≥ 8 | No cracks or delamination at bend | < 25 |
| FZ39-O | O | 0.210 – 0.300 | 60 – 100 | ≥ 13 | ≥ 8 | No cracks or delamination at bend | < 25 |
| FZ39-H12/22 | H12, H22 | 0.050 – 0.300 | 80 – 120 | — | ≥ 6 | No cracks or delamination at bend | 25 – 30 |
| FZ39-H14/24 | H14, H24 | 0.050 – 0.300 | 95 – 135 | — | ≥ 4 | No cracks or delamination at bend | 30 – 40 |
| FZ39-H16/26 | H16, H26 | 0.050 – 0.300 | 110 – 150 | — | ≥ 3 | No cracks or delamination at bend | 40 – 45 |
| FZ39-H18 | H18 | 0.050 – 0.300 | ≥ 125 | — | ≥ 2 | No cracks or delamination at bend | > 45 |
Why Choose This Product
- Engineered Dimensional Reliability: Stringent thickness accuracy down to ±0.005 mm and controlled straightness prevent feeding misalignment, ensuring high yield rates in high-precision laboratory and automated industrial production lines.
- Full Spectrum Temper Customization: With precisely calibrated mechanical states ranging from soft O-temper to hard H18 temper, users can match the exact balance of tensile strength, elongation, and stiffness required for their process.
- Superior Surface and Purity Integrity: Produced in strict adherence to GB/T 3190-1996 chemical standards, this aluminum strip exhibits low surface oxidation and zero lamination defects, ensuring optimal ultrasonic weld strength and electrical contact.
- Custom Slitting and Rapid Prototyping: Complete dimensional flexibility allows custom slit widths from narrow 2 mm micro-tabs up to wide continuous coils, accommodating non-standard experimental setups and high-volume cell manufacturing alike.
Contact our technical engineering team today to request a quotation, specify custom slit dimensions, or discuss material data sheets tailored to your battery and advanced materials applications.
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