Titanium Anode For Aluminium Foil
1. Working conditions: ammonium adipate potassium adipate ammonium borate 2. Current density: 400-1000 (A / m2) 3. Voltage: 25-26V 4. Plate size: 5 * 500 * 1500 (mm)
Product Introduction
Product Description
Titanium anodes used in aluminum foil electrolysis are high-performance dimensionally stable anodes (DSA) designed for the production of high-purity anodized aluminum foil used in electronic capacitor manufacturing and precision electronics.
The anodes are typically coated with iridium–tantalum mixed metal oxide (Ir/Ta MMO) coatings, which provide:
Low oxygen evolution overpotential
Excellent electrochemical stability
Strong anti-oxidation and anti-pollution performance
Long service life under high current density operation
These properties are critical for modern electronic-grade aluminum foil production where surface quality and film uniformity are essential.
Industry Background
Electrolytic aluminum foil is widely used in:
Printed circuit boards (PCB)
Copper-clad laminates (CCL)
Consumer electronics (3C industry)
Home appliances
Communication equipment
With the rapid development of electronics technology, aluminum foil requirements are increasingly demanding:
Lower surface roughness
Thinner foil thickness
Higher mechanical strength
Defect-free surface morphology
Operating Conditions
Electrolyte:
Ammonium adipate
Potassium adipate
Ammonium borate
Current Density: 400 – 1000 A/m²
Voltage: 25 – 26 V
Service Life: ≈ 18 months
Plate Specifications
Plate Size: 5 × 500 × 1500 mm
(Custom dimensions available)
Coating Type
Iridium–Tantalum Oxide Coating (Ir/Ta MMO)
Advantages:
Low oxygen evolution potential
High catalytic efficiency
Excellent corrosion resistance
Stable electrochemical performance
Electrochemical Performance Standards
Parameter | Result |
Weight loss | ≤ 10 mg |
Polarizability | ≤ 40 mV |
Oxygen evolution potential | < 1.40 V |
Test Environment | 1 mol/L H₂SO₄ |
Standards referenced:
HG/T 2471-2007
Q/CLTN-2012
Aluminum Foil Production Process Overview
Anode Foil Production
Aluminum ingot homogenization
Hot rolling → Cold rolling
Foil finishing and cleaning
Bright foil production (Purity ≥ 99.97%)
Corrosion treatment
Forming and winding
Typical thickness:
50 – 110 μm (anode foil)
Cathode Foil Production
Light foil (Purity ≥ 99.4%)
Surface corrosion treatment
Typical thickness:
15 – 50 μm
Application Principle
In aluminum foil anodizing:
High current density systems (1000 – 5000 A/m²) are used
Thin aluminum foil cannot directly carry high current
Auxiliary anodes and cathodes are installed on both sides
Challenges solved by MMO coated titanium anodes:
Prevent organic electrolyte contamination
Reduce electrode potential increase
Prevent coating degradation
Improve oxide film dielectric uniformity
Key Advantages
High current efficiency
Excellent corrosion resistance
Stable long-term electrochemical performance
Strong anti-fouling capability
Long operational lifespan
Low energy consumption
Applications
Aluminum electrolytic capacitor foil production
High-purity electronic aluminum foil anodizing
Semiconductor and electronic materials manufacturing
Precision capacitor manufacturing
Supplier Capability
Advanced manufacturing ensures:
Uniform coating thickness
Strong coating adhesion
Stable electrochemical performance
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