AA1050 H18 0.4MM Prepainted Aluminium Coil for Battery Flexible Connection 

 The AA1050 H18 0.4MM Prepainted Aluminium Coil is a specialized material engineered to meet the demanding requirements of battery flexible connections—critical components that ensure efficient current transfer and structural adaptability in battery systems. Crafted from AA1050 aluminum alloy (a high-purity grade with ≥99.5% aluminum content), it undergoes precision rolling to a ultra-thin 0.4mm thickness and is processed to the H18 temper (full strain-hardened for optimal strength-to-flexibility balance). Its surface features a thin, conductive-compatible pre-paint layer (formulated to preserve electrical performance while offering corrosion protection), making it a tailored solution for safe, durable battery interconnections.

Product Parameters

Application Scenarios

• Lithium-Ion Batteries: Flexible connections for cylindrical (18650/21700), prismatic, and pouch lithium-ion batteries used in consumer electronics (smartphones, laptops, tablets) and electric vehicles (EVs). It enables seamless current flow between battery cells while accommodating the slight expansion/contraction of cells during charging/discharging.
• Lead-Acid Batteries: Inter-cell flexible connections for automotive starter batteries, UPS backup batteries, and industrial lead-acid battery packs. The material’s corrosion resistance protects against acid fumes, ensuring long-term connection stability.
• Sodium-Ion Batteries: Flexible busbars and interconnectors for sodium-ion batteries—emerging energy storage solutions for grid-scale storage and low-cost EVs. Its high purity and conductivity align with the performance needs of this next-generation battery technology.
• Battery Energy Storage Systems (BESS): Flexible connections for large-scale BESS used in solar/wind energy storage, commercial backup power, and grid regulation. The coil’s formability allows for custom designs to fit compact or modular battery rack configurations.

Advantages

1. Excellent Electrical Conductivity & Current Transfer

2. Optimal Flexibility & Mechanical Adaptability

3. Strong Corrosion Resistance & Longevity

4. Lightweight & Space-Saving Design

5. Easy Processability & Cost-Effectiveness