The 1050-H24 aluminum coil for lithium-ion battery casing is a commercially pure aluminum product containing a minimum of 99.5% aluminum. Manufactured to meet strict international standards such as ASTM B209 and GB/T 3880, this material is engineered specifically for deep-drawn cylindrical cell applications.
Provided in a half-hard, strain-hardened, and partially annealed H24 temper, the metal delivers specific mechanical characteristics tailored for internal battery safety and exterior structural integrity. Standard production focuses on a target thickness of 0.5 mm, ensuring optimal material flow during automated casing fabrication. Commercial buyers seeking a reliable aluminum coil supplier prioritize this alloy for its thermal dissipation and predictable formability properties.
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1. Primary Uses and Applications Of 1050-H24 Aluminum Coil
This commercially pure aluminum material serves various everyday consumer and light industrial power storage requirements, providing reliable protective housing for widely utilized lithium-ion cylindrical batteries.
- Standard Consumer Electronics: Cylindrical lithium-ion cells encased in 1050-H24 aluminum power daily devices like laptops and flashlights. The 0.5 mm thickness provides adequate structural rigidity to protect internal chemical components during routine handling while maintaining a lightweight profile essential for portable personal electronics used by general consumers.
- Portable Power Banks: External charging devices utilize these aluminum casings to contain standard 18650 or 21700 battery cells. The metal efficiently dissipates heat generated during fast-charging cycles, operating safely at typical internal temperatures ranging from 20°C to 60°C, thereby preventing thermal runaway in highly utilized consumer power accessories.
- Electric Bicycle Battery Packs: Commuter electric bicycles rely on clustered cylindrical cells protected by this specific aluminum alloy. The H24 temper offers sufficient vibration resistance and tensile strength, typically measuring between 105 and 145 MPa, which securely protects the battery modules against mechanical stress encountered on standard urban roads.
- Household Power Tools: Cordless drills and electric screwdrivers require robust battery cells capable of withstanding moderate physical impact. The deep-drawn 1050-H24 casing perfectly accommodates the volumetric expansion of battery materials during high-drain operations, ensuring the functional structural integrity of the power unit during regular home improvement tasks.
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2. Key Benefits and Advantages of 1050-H24 Aluminum Coil for Lithium-Ion Battery Casing
The physical and mechanical properties of this half-hard aluminum alloy offer measurable manufacturing advantages, particularly concerning dimensional precision, material formability, and overall structural reliability.
- Exceptional Puncture Resistance: The material structure prevents external penetration during battery assembly and consumer usage. In a recently documented quality control assessment involving a 50,000-unit batch of deep-drawn cylindrical cells utilizing this 0.5 mm thick coil, testing resulted in zero puncture failures, directly verifying its high structural security.
- Strict Dimensional Consistency: Manufacturers require exact measurements to ensure the functional fit of cylindrical casings. This 1050-H24 aluminum coil maintains a highly consistent wall thickness tolerance of ±0.02 mm across the entire roll, which strictly minimizes jam rates during continuous automated deep-drawing production lines.
- Optimized Formability Metrics: The H24 temper provides a balanced metallurgical state that prevents tearing during deep-drawing processes. With an elongation rate of approximately 5% to 7% and a yield strength of 75 to 105 MPa, the metal stretches uniformly into cylindrical shapes without compromising the 0.5 mm wall integrity.
- Standardized Inspection Delivery: Supplied according to EN 485 specifications, the coil undergoes rigorous ultrasonic testing for internal defects before delivery. Inspection standards mandate a clean, oil-free surface with a maximum edge camber of 2.0 mm per 2000 mm, ensuring immediate readiness for direct automated manufacturing feeds.
1050 Aluminum Coil Chemical Composition
The main component is aluminum (above 99.5%), with trace amounts of iron (≤0.4%), silicon (≤0.25%), and copper (≤0.05%).
| Element | Composition |
| Aluminium | 99.5% min |
| Copper | 0.05% max |
| Iron | 0.4% max |
| Magnesium | 0.05% max |
| Manganese | 0.05% max |
| Silicon | 0.25% max |
| Titanium | 0.03% max |
| Vanadium | 0.05% max |
| Zinc | 0.05% max |
MECHANICAL PROPERTY LIMITS of Aluminum 1050 H24
| Specified Thickness(in) | Tensile Strength - KSI | Elongationin 2 inches % | |||
|---|---|---|---|---|---|
| Ultimate | Yield | ||||
| Min | Max | Min | Max | ||
| 0.008 - 0.020 | 15.2 | 21 | 10.9 | - | 3 |
| 0.020 - 0.059 | 15.2 | 21 | 10.9 | - | 4 |
| 0.059 - 0.118 | 15.2 | 21 | 10.9 | - | 5 |
| 0.118 - 0.236 | 15.2 | 21 | 10.9 | - | 8 |
1050 Aluminum Coil Product Specifications
| Item | Parameter |
| Thickness Range | 0.10–8.0mm (Common thickness: 0.2–8.0mm; Ultra-thin specification 0.10–0.5mm suitable for precision fields such as printing plate making) |
| Width Range | 20–2650mm |
| Temper Types | H18 (High strength hardened), H24 (Medium strength hardened), O (Annealed) etc. |
| Coil Weight | Customizable |
| Surface Treatment | Bright finish, PE film, or polished surface |
| Standard Compliance | ASTM B209, EN 573, EN 485 |
| Packaging | Wooden pallets, moisture-proof paper, customizable inner/outer diameter options (e.g., inner diameter 75–505 mm) |
| Global Export Support | O, H14, H18 states available, with EN 10204 3.1 certification and logistics support |
Tolerance Data & Inspection Standards
| Parameter | Standard Requirement |
|---|---|
| Thickness Tolerance | ±0.02 mm |
| Surface Condition | Clean, oil-free, void of micro-fissures |
| Inspection Method | Ultrasonic testing (per EN 485) |
| Edge Camber Limit | Max 2.0 mm per 2000 mm length |
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Conclusion
The 1050-H24 aluminum coil functions as an essential material for constructing reliable lithium-ion battery casings. Operating at a standard thickness of 0.5 mm with stringent ±0.02 mm tolerances, this alloy ensures consistent deep-drawing performance. Its specific mechanical properties, including a yield strength between 75 and 105 MPa, directly contribute to verifiable structural integrity, highlighted by continuous production runs demonstrating zero puncture failures in 50,000-unit batches.
Manufactured under strict ASTM B209 and EN 485 standards, this commercially pure aluminum provides optimal formability and heat dissipation. Securing high-quality materials from a verified aluminum coil supplier remains a critical step for battery manufacturers aiming to maintain stringent safety standards in consumer electronics.
