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Precision Anodes for Copper Foil & Metal Foil Lines

Platinized titanium and Ir-Ta MMO anodes for electrolytic copper foil cells, strip plating and foil-plant support circuits — plus titanium sheet, foil, mesh and wire stock for anode fabrication. Uniform current distribution, zero metal contamination and documented coating performance keep foil thickness, roughness and yield under control.

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Electrolytic Copper FoilPCB & Battery FoilTitanium Foil & SheetStrip Plating
0.2–2 kA/m²Rated Current Density
5–10 yrsDesign Life at Rating
100%XRF & QC Tested
24hEngineering Response
Copper foil production line in a metal foil manufacturing plant
Engineering Reality

Metal Foil Production Runs on Electrode Precision

Copper foil — the current collector inside PCB laminates and lithium batteries — is grown on a rotating titanium cathode drum from CuSO₄/H₂SO₄ electrolyte, then finished by rolling. Inside the cell the counter-electrode carries the current that controls how evenly copper deposits, and that evenness decides foil thickness tolerance, surface roughness (RA) and pin-hole yield.

Traditional insoluble anodes carry lead or scale up in service, so the gap and the current distribution drift, and foil quality drifts with them. Platinized titanium and MMO anodes hold a stable potential and a fixed geometry for years — the deposit stays uniform cell after cell, and the foil plant stops paying for anode maintenance and electrolyte contamination in every roll of foil it ships.

Plate rolling equipment used to finish metal foil and sheet in a foil production plant
The engineering boundary: foil cells run at far higher current density than general electowinning, and the electrolyte is aggressively acidic. Electrode selection is a current-density and electrolyte decision — we rate every anode to your foil chemistry, drum geometry, temperature and duty cycle before quoting, and we provide the titanium substrate forms foil plants need for anode fabrication and hardware.
The Challenges

What Limits Copper Foil & Metal Foil Performance

Four constraints dominate real foil plants — from electrolytic copper foil to titanium and nickel foil rolling. Each one is addressable with the right anode, substrate and cell design.

🛡

Foil Surface Defects

Uneven current distribution produces pits, dendrites, pin-holes and streaks in the foil. On a foil that ships by the tonne, one bad anode means scrap that runs through the whole drum and the whole coil.

⚡

High-Current-Density Stress

Copper foil cells run at far higher current densite than general elecrowinning. Anodes that cannot sustain that loading age unevenly, drift in potential and pull the foil out of its thickness and RA tolerance.

🔨

Anode Maintenance & Downtime

Lead and scaled anodes creep, build oxide and need frequent cleaning and replacement. Every service stop interrupts the drum rotation cycle, costing production time and roll-to-roll consistency.

🌡

Acidic Bath Contamination

CuSO₄/H₂SO₄ and pickling baths are hot and corrosive. A dissolving anode puts metal ions and particles into the bath, which then plate into the foil as inclusions and break the purity spec.

Selection Guide

Choose the Right Anode for Your Foil Line

Match your foil process and electrolyte to the correct coating and format. The table below is the fast path — our engineers refine it with your cell current, drum geometry, temperature and foil quality targets.

ApplicationRecommended AnodeCoatingCurrent DensityTypical LifeKey Benefit
Electrolytic copper foil (CuSO₄/H₂SO₄ drum cell)Platinized titanium / MMO meshPt / Ir-Ta0.2–2 kA/m² (cell duty)3–8 yrsUniform deposit, stable gap, clean foil
Strip / coil plating linesPlatinized titanium wire & rodPt1–5 kA/m²3–8 yrsHigh loading, dense current, no metal pickup
Auxiliary & cleaning cells (acid, stripping)Ir-Ta MMO plate / meshIrO₂/Ta₂O₅0.2–1 kA/m²5–10 yrsCorrosion resistance, low maintenance
Foil-plant hardware & anode framesTitanium sheet / mesh / wire stockUncoated or passivated—10+ yrs structuralFabrication-ready titanium for your line
Titanium foil & nickel foil processingTitanium / nickel foil & strip coils———Battery, electronic and specialty foil stock
Battery foil electroforming (specialty)MMO mesh / Pt-TiIr-Ta / Pt0.2–1 kA/m²3–8 yrsPrecision current control for thin deposits
Media: CuSO₄/H₂SO₄ foil bath · H₂SO₄/HCl pickling · Ni strippingCoating basis: Pt oxygen-side · IrO₂/Ta₂O₅ oxygen evolutionSubstrate: ASTM B265 Gr1 / Gr2 titanium
Anode Range

Ehisen Metal Foil Production Electrode Range

Six core titanium electrode and substrate formats for electrolytic copper foil cells, strip plating and foil-plant hardware — each coated and rated to its acidic bath with traceable material and coating documentation.

Ehisen MMO mesh anode with black coated plate for copper foil plating cells
Foil Cell Anode

MMO Mesh Anode

Mixed metal oxide coated titanium mesh for uniform current distribution across the foil drum — stable potential and no metal pickup in the acidic bath.

SubstrateGr1 Ti mesh
CoatingIrO₂/Ta₂O₅
Current density0.2–2 kA/m²
Design life3–8 years at rating
Ehisen titanium mesh anode rack installed in a plating cell for foil processing
Rack & Hanger

Titanium Mesh Anode Rack

Welded titanium mesh racks and hanger frames that carry the anode across the full drum width — built to your cell geometry for even spacing.

FormatWelded rack · mesh
MaterialGr1 / Gr2 Ti
CoatingPt / Ir-Ta on request
Design life5–10 years
Ehisen platinized titanium wire and rod anodes for strip plating and drum cells
Wire & Rod

Platinized Titanium Wire & Rod Anodes

Platinum coated titanium wire and rod for strip plating, drum internal anodes and continuous foil lines where high current density and dense geometry matter.

DiameterΦ1.6 – Φ16 mm
CoatingPt, 5–20 g/m²
Current densityUp to 5 kA/m²
Design life3–8 years
Ehisen titanium sheet and coil stock for anode fabrication and foil plant hardware
Substrate Stock

Titanium Sheet & Coil Stock

Gr1/Gr2 titanium sheet, strip and coil — the fabrication-ready substrate for anode plates, frames and foil-plant hardware in your own workshop.

Thickness0.5–6 mm
MaterialGr1 / Gr2 (ASTM B265)
FinishPickled · polished
FormsSheet · strip · coil
Ehisen nickel foil and strip coils for battery and electronic foil applications
Foil & Strip

Nickel Foil & Strip

Nickel foil and strip coils for battery current collectors, electronic foils and specialty processing — bright, cold-rolled surface in controlled thickness.

Thickness0.02–0.5 mm
MaterialNi / Ni alloys
FinishBright / cold-rolled
FormsFoil · strip · coil
Ehisen titanium and nickel wire coils on spools for anode and mesh fabrication
Wire Coil

Titanium & Nickel Wire Coils

Titanium and nickel wire on coils and spools for anode fabrication, mesh weaving, fasteners and current-distribution hardware in foil plants.

DiameterΦ0.5 – Φ5 mm
MaterialGr1 Ti · Ni alloys
FinishCleaned · annealed
FormsCoil · spool
Reference Specifications

Standard Dimensions & Output Data

Factory reference tables for the core foil-cell anode and substrate formats. Other sizes, coatings and precious-metal loadings can be customised on request.

Platinized Titanium Anode (Copper Foil Cell)FormatPt Loading (g/m²)Current Density (kA/m²)Life (yrs)Application
Mesh 300 × 500Expanded mesh5–200.2–2.03–8Foil drum cells · strip lines
Mesh 600 × 1200Expanded mesh5–200.2–2.03–8Full-width foil cells
Wire / rod Φ3 – Φ8Wire · rod10–201–53–8Drum internal · continuous lines
Titanium Sheet & Coil StockThickness (mm)Width (mm)Length (m)GradeApplication
Sheet 1.01.0 ± 0.11000 – 1250Up to 3Gr1 / Gr2Anode plates · frames
Sheet 2.02.0 ± 0.151000 – 1250Up to 3Gr1 / Gr2Busbar · hanger hardware
Strip / coil 0.50.5 ± 0.05100 – 500Coil lengthGr1 / Gr2Mesh blank · foil plant parts
Nickel Foil & StripThickness (mm)Width (mm)Coil Weight (kg)MaterialApplication
Foil 0.050.05 ± 0.00550 – 400Up to 500N4 / N6Battery current collector
Strip 0.200.20 ± 0.01550 – 600Up to 800N4 / N6Electronic foil · shields
Strip 0.500.50 ± 0.0350 – 600Up to 1000N4 / N6Connectors · frames
Titanium base: ASTM B265 Gr1 (sheet & mesh) · B863 Gr1 (wire & rod)Gr1 composition: Fe ≤0.20% · C ≤0.08% · N ≤0.03% · H ≤0.02% · O ≤0.18% · Others ≤0.40% · Ti balance
Quality & Documentation

Documented Quality for Foil-Plant Electrodes

Every anode and substrate ships with traceable material, coating and testing records aligned to ISO-style quality management — so foil plants can trust the deposit, the lifetime and the audit trail.

ISO 9001

Quality Management

All production runs under a certified quality management system with full batch traceability from titanium substrate to final test.

MTC

Material Certificates

Titanium substrate to ASTM B265 Gr1 / Gr2 with chemical and mechanical traceability.

XRF Data

Coating Verification

Coating thickness and platinum / iridium loading verified per batch — the parameters that actually control current distribution, electrode lifetime and foil quality.

ALT Data

Accelerated Life Test

Performance verified per NACE TM0108-2008 at elevated current density in the acidic bath under rated conditions.

3rd-Party

Independent Testing

Third-party reports available on request for coating thickness, adhesion and precious-metal loading.

Export Docs

Project Documentation

Certificate of conformity, packing list and inspection records prepared for project handover and audits.

MTCCoating ReportXRF DataALT DataInspection RecordCertificate of ConformityPacking List
Accelerated Life Testing

ALT Conditions per NACE TM0108-2008

Lifetime is verified by accelerated life testing — not field wait. We test at elevated current density in the acidic media your foil line actually runs, then convert the data to your operating rating.

Coating SystemMediumCurrent Density (A/m²)Temperature (°C)
Pt10% H₂SO₄ + Cl⁻40,00025 ± 5
Ir-Ta MMOCuSO₄ / H₂SO₄ (foil bath)20,00040 ± 5
Ir-Ta MMOH₂SO₄ / HCl pickling20,00025 ± 5
Performance

Specs That Keep Foil Lines Producing

0.2–2 kA/m²

Rated Current Density

Sustains efficient metal deposition and uniform current across the foil drum without accelerated coating wear or voltage drift.

3–8 yrs

Coating Design Life

Verified coating life at rated duty — the basis for predictable anode change-out schedules in the foil plant.

<3%

Coating Loading Tolerance

Controlled precious-metal loading per batch keeps overpotential, efficiency and lifetime consistent across the whole line.

5–20 g/m²

Platinum Loading

Pt loading verified per batch — the loading level that controls anode life and current distribution in high-density foil cells.

FAQ

Frequently Asked Questions About Foil-Plant Anodes

What anode is used inside an electrolytic copper foil cell?
Electrolytic copper foil is grown on a rotating titanium cathode drum from CuSO₄/H₂SO₄ electrolyte, and the counter-electrode carries the plating current across the drum width. Insoluble anodes such as platinized titanium and MMO titanium are used because they release no metal into the bath, keep a fixed geometry and hold a stable potential — the three requirements for uniform foil thickness, low RA and a clean deposit.
Why do foil plants replace lead anodes with platinized or MMO titanium?
Lead anodes dissolve slowly into the electrolyte and build a resistive oxide layer, so the deposit quality drifts and the bath picks up lead. Platinized titanium and MMO titanium anodes stay dimensionally stable, hold a lower and steadier potential, and add no metal to the bath — which protects foil purity, thickness tolerance and RA from roll to roll.
How does the anode affect copper foil thickness and roughness (RA)?
Foil thickness and RA follow the local current distribution between anode and cathode drum. If the anode spacing, potential or geometry drifts, some zones deposit thick and others thin, and roughness climbs. A dimensionally stable anode with uniform coating loading keeps the current even across the drum, so thickness tolerance and RA hold to specification across the whole foil width.
Can MMO anodes run at copper foil cell current densities?
Copper foil cells run at far higher current density than general electrowinning. Ir-Ta MMO anodes sustain oxygen evolution up to the cell-duty ratings we quote, and platinized titanium carries even higher loading for drum internal and strip-line duty. We rate the coating and precious-metal loading specifically to your cell current density before quoting.
Will the anode contaminate my foil electrolyte?
No. Platinized titanium and MMO anodes release no lead, silver or other metal into the bath under rated duty. Bath purity is controlled by electrolyte filtration and additives as before, but the anode contribution to metal inclusions and particles is removed entirely — a real advantage for high-purity battery and PCB foil grades.
How long do platinized titanium anodes last in foil duty?
At the rated current density, design life is typically 3–8 years for platinum coatings and 3–10 years for Ir-Ta MMO, depending on current density, temperature, bath impurities and operating profile. We verify performance with accelerated life testing per NACE TM0108-2008 in the actual bath and provide the data with your order.
What titanium forms do foil plants buy from Ehisen?
Foil plants order Gr1/Gr2 titanium sheet, strip and coil for anode fabrication and hardware, titanium mesh for anode frames and racks, and titanium wire for fasteners and current-distribution parts — plus nickel foil and strip for battery and electronic applications. All substrate material ships with ASTM B265 chemical and mechanical certificates.
Can you build anode racks to my foil cell geometry?
Yes. We weld titanium mesh racks and hanger frames to your drum width, cell depth and electrode spacing, with coating applied on request. Send the cell drawing and we will extract the geometry and produce the rack assembly with material certificates and inspection records.
What about anode spacing and current distribution across a wide foil drum?
Wide drums demand even anode spacing across the full width and a coating of uniform loading, otherwise the foil grows thicker at the edges. We size mesh format, spacing and precious-metal loading so current density is flat across the drum, and we recommend inter-cell busbar practice that keeps the current even end to end.
Do you provide accelerated life test data for foil-bath anodes?
Yes. ALT is performed per NACE TM0108-2008 at elevated current density in the acidic bath of your application, and the data is shipped with the order. This is the objective basis for the design life quoted on your coating — not a marketing figure.
What is the lead time for foil-plant anode orders?
Standard anodes and substrate stock typically ship in 2–4 weeks depending on format, coating and quantity; custom racks and precious-metal loadings extend this slightly. We confirm a firm schedule with your order and update you from coating to packing list.
How do I size anodes for my copper foil line?
Anode area follows from the required cell current divided by the rated current density of the coating, with allowance for drum width, electrolyte temperature and the operating duty. Send us the foil gauge, cell current, bath chemistry, drum geometry and target RA — we will calculate the anode count, size and loading for you within 24 hours.

Need the Right Anode for Your Foil Line?

Send us your cell details — foil gauge, bath chemistry, drum geometry, current density and target RA — and our engineers will recommend the correct coating, anode format and quantity within 24 hours.

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Foil Line Anatomy

The Components of a Copper Foil Production Line

Reliable foil output is a system result — drum cell, electrodes, electrolyte circulation, power supply, foil handling and surface finishing must work together. Ehisen supplies the coated electrodes and titanium substrate at the heart of the current path.

01

Drum Cell & Electrode Set

The rotating titanium cathode drum where copper deposits, paired with insoluble anodes sized to the drum width. Electrode spacing and busbar practice control thickness and RA.

02

Anodes & Titanium Substrate

Platinized titanium or Ir-Ta MMO anodes in mesh, rack, wire and rod format, plus Gr1/Gr2 titanium sheet, strip and coil for fabrication and hardware across the line.

03

Electrolyte Circulation

CuSO₄/H₂SO₄ bath is pumped, filtered and temperature-controlled. Feed purity and additives directly control deposit quality and coating life.

04

Rectifier & Power Feed

Rectifiers supply stable, low-ripple DC to the cell. Clean current keeps the deposit even and protects electrode coating life.

05

Foil Stripping & Winding

Deposited foil is peeled from the drum, washed and wound into coils. Consistent stripping protects the drum surface and the anode gap setting.

06

Rolling & Surface Finish

Foil is cold-rolled and surface-treated to final thickness and RA. Rolling equipment and anode quality together decide the foil spec that ships.

Project Sequence

From Cell Requirements to Installed Anodes

Building or retrofitting a foil line follows a proven four-stage sequence. Ehisen supports you at every stage with engineering input and documented hardware.

Step 1

Line Analysis

Foil gauge, bath chemistry, temperature, cell current, drum geometry, target RA and duty profile are reviewed, then anode format, coating and precious-metal loading are calculated.

Step 2

Engineering & Sample

We recommend the coating system and can supply sample anodes for testing in your actual bath before full production.

Step 3

Fabrication & QC

Anodes and racks are manufactured with batch traceability, coating inspection and accelerated life testing, with full process records shipped alongside.

Step 4

Installation & Trial Run

Anodes are positioned, contact resistance verified, and foil thickness and RA checked during the trial run until performance is stable.

Engineering tips: keep anode-to-drum spacing and electrolyte flow consistent across the foil width — uneven spacing concentrates current and drives thickness and RA out of spec. Control bath temperature and impurity levels, and record cell voltage and foil yield per hour to prove line consistency before accepting a new anode set.
Why Ehisen

A Manufacturing Partner, Not Just an Anode Supplier

Foil plants choose Ehisen because coating consistency, traceability and engineering response decide how long a foil-cell anode really lasts and how even the deposit stays — not just the catalogue price.

In-House Line

Controlled Coating

Coating applied on our own production line with a fixed formulation and controlled loading tolerance — samples and bulk runs are made to the same standard.

LOT Tracking

Full Traceability

Every batch carries a LOT number linking substrate material, coating process records, inspection results and shipping documents.

ALT Lab

Life-Test Verified

Accelerated life testing per NACE TM0108-2008 at 20,000–40,000 A/m² in acidic media converts laboratory hours into your foil-line rating.

Free Design Help

Engineering Support

Our engineers review your bath chemistry, current density, temperature and drum geometry, then recommend coating, format and loading — within 24 hours.

40+ Countries

Global Logistics

Export experience across 40+ countries with complete documentation: MTC, coating reports, XRF data, inspection records, certificate of conformity.

On-Time

Reliable Delivery

Production planned against your project schedule, with order status updates from coating to packing list.

How We Work

From Your Enquiry to Delivered Anodes

A clear, three-step process keeps every foil-line order on specification and on schedule.

1

Send Requirements

Share your foil gauge, bath chemistry, current density and target coating loading via WhatsApp or email — or send a cell drawing and we will extract the parameters.

2

Engineering Review

Within 24 hours you receive a recommendation: anode coating, format, dimensions, loading and the supporting calculation basis.

3

Fabrication & Shipment

After approval, production runs with batch QC, then ships with the full document pack: MTC, coating report, XRF and ALT data and packing list.

Our commitment: every foil-line anode order includes a standard 12-month warranty against coating defects, plus the design-life test data that supports your line programme. If the delivered material does not match the agreed specification, we replace it at our cost.

Get in Touch

Send us a message if you have any questions or request a quote. We will be back to you ASAP!