FREE SHIPPING with $59 or More. New Customer? Inquire for Major Discount & Free Samples! Online Payments & POs Accepted.

Custom Battery Electrode Coating Service for R&D

Custom Battery Electrode Coating Service for R&D

Atomfair provides precision battery electrode sheet fabrication and contract coating services tailored for research laboratories, university faculties, and industrial battery engineering teams. Our processing spectrum covers the complete development lifecycle: from single-sided ultra-low loading sheets and pre-punched discs for fundamental coin-cell screening and kinetics analysis, up to double-sided continuous or intermittent coated rolls engineered for multi-layer pouch cell stacking and pilot-line cylindrical winding.

We accommodate both Full-Turnkey (all raw active materials, binders, and current collectors sourced by Atomfair) and Toll / Consignment fabrication (utilizing customer-supplied proprietary active powders) with guaranteed formula confidentiality under bilateral NDA.

1. Technical Capabilities & Processing Windows

Engineering Parameter Specification & Tolerance Baseline
Coating Configurations Single-Sided Sheets & Discs: Optimized for coin cell screening, thin baseline models, and half-cell testing.
Double-Sided Continuous Rolls: Symmetrical or asymmetrical double-sided coating with precise alignment (overlay tolerance ≤ ±0.5 mm) for multilayer pouch cell stacking and cylindrical winding.
Areal Loading Spectrum Ultra-Low Loading: 3.0 – 8.0 mg/cm² (for high-rate kinetics and fundamental mechanism studies).
Standard to Ultra-Thick: 10.0 – 40.0 mg/cm² (wet slot-die) and up to 80.0 mg/cm² (solvent-free dry PTFE calendered). Loading tolerance: ≤ ±1.5%.
Coating Technologies Continuous & Intermittent Slot-Die Coating; Transfer/Doctor-Blade Coating; Solvent-Free PTFE Calendering (Dry Electrode Process).
Coating Geometry & Margins Effective coating width: 50 mm to 280 mm. Intermittent stripe pitch, edge retention margins, and tab blank zones fully customizable.
Calendering & Densification Precision roll-to-roll heated calendering up to 120 °C. Adjustable compaction density (up to 4.2 g/cm³ for LCO, 3.5 g/cm³ for NCM) with controlled target porosity (20% – 38%).
Current Collectors Standard Al (9–16 μm), Cu (6–12 μm), Carbon-Coated Al/Cu, Nickel foam, Stainless steel mesh, and 3D porous metallic substrates.
Delivery Quantities (MOQ) Pilot rolls (5 to 100+ meters), flat pre-cut sheets (A4/custom), or pre-punched precision discs (12, 14, 15, 16, 19 mm) for coin cells.

2. Material Flexibility & Chemical Systems Supported

Cathode Chemistries

• High-Nickel NCM/NCA (NCM811, Ni90, Ni95)
• High-Voltage Single-Crystal LCO (up to 4.5V)
• Lithium Iron Phosphate & LMFP
• High-Voltage Spinel LNMO & Rich-Li Manganese
• Sodium-ion Layered Oxides & Prussian Blue

Anode Chemistries

• Synthetic & Natural Graphite (fast-charging blends)
• Silicon-Carbon (Si-C) & SiOₓ Composite Blends
• Hard Carbon & Soft Carbon for Sodium-ion Cells
• Lithium Titanate (LTO) for high-rate/safety cells
• Pre-lithiated & Thin Lithium Cladded Foils

Emerging & Next-Gen Systems

• Solvent-Free Dry Electrodes (PTFE fibrillation)
• Solid-State Cathodes with Sulfide/Oxide Electrolyte
• Sulfur-Carbon Cathodes for Li-S Batteries
• Aqueous Zinc-ion & Multivalent Ion Electrodes
• Redox Flow Battery Carbon Felts & Gas Diffusion Layers

3. R&D Project Workflow: From Formulation to Delivery

PHASE 1: FEASIBILITY
Bilateral NDA execution, solvent compatibility check, formulation ratio definition, and loading calculation.
PHASE 2: TRIAL SLURRY
Planetary vacuum mixing, viscosity optimization, dispersion rheology control, and initial test-strip coating.
PHASE 3: FABRICATION
Precision slot-die coating, multi-zone convective drying, heated roll calendering, and edge margin slitting.
PHASE 4: QC & PACKAGING
Actual areal density measurement, Karl Fischer moisture content verification, and inert-atmosphere packaging.

4. Optional Cell Assembly & Electrochemical Testing

Prototyping Stage Defined Scope & Test Matrix
Coin Cell Assembly CR2032 / CR2016 half-cell (vs. Li/Na metal) or full-cell pairing with custom electrolyte injection and baseline formation.
Pouch Cell Prototyping Stacking, ultrasonic tab welding, pouch deep-drawing, vacuum liquid injection, and secondary vacuum degassing sealing.
Electrochemical Verification Galvanostatic cycling, C-rate capability (0.1C to 5C), dQ/dV differential capacity curves, Electrochemical Impedance Spectroscopy (EIS), and DCIR testing.

* Engineering note: Electrochemical evaluation reports reflect specific agreed laboratory parameters and do not constitute automotive or industrial production certification.

5. Quality Control & Batch Inspection Protocol

Every custom electrode batch is validated against two fundamental parameters critical for reproducible electrochemical data: precise mass distribution and residual moisture. Standard delivery packages include a dedicated Certificate of Analysis (CoA) reporting:

1. Actual Areal Loading Measurement

Multi-point punch-and-weigh sampling along the machine coating direction with substrate tare deduction. Each shipment reports measured areal density (mg/cm²) across batches to confirm consistency (baseline tolerance ≤ ±1.5%).

2. Karl Fischer Moisture Titration

Quantitative residual water content (ppm) verified via Karl Fischer coulometric titration post-vacuum drying. Essential for high-nickel cathodes and moisture-sensitive solid-state cell integration prior to glovebox handling.

Intellectual Property Protection & Institutional Procurement
  • Strict Confidentiality: Bilateral Non-Disclosure Agreements (NDAs) are executed prior to formulation or drawing exchange. Customers retain 100% intellectual property ownership of all custom materials, recipes, and resulting test data.
  • Institutional PO & Flexible Invoicing: Official formal PDF quotations, University Purchase Orders (POs), Net-30 invoicing, and Vendor Registration Forms are fully supported.
  • International Cleanroom Packaging: All electrodes are dried under vacuum, nitrogen/argon sealed with indicator desiccant, and packaged for immediate inert-atmosphere glovebox introduction.

6. Frequently Asked Engineering Questions (FAQ)

Q: What inspection data is provided with custom coated electrodes?

We supply measured batch areal loading data (mg/cm²) and Karl Fischer residual moisture test results (ppm) with every delivery to verify coating consistency and dryness before cell assembly.

Q: Can we supply our own synthesized active powder for toll coating?

Yes. Under our Toll / Consignment service, clients provide proprietary active powders (as little as 200–500 g for initial screening). A bilateral NDA is executed prior to receipt to safeguard formulation IP.

Q: How are moisture-sensitive electrodes packaged for delivery?

Electrodes are vacuum-sealed inside multi-layer aluminum moisture-barrier bags with desiccant indicators immediately after post-drying inspection, ready for direct transfer into inert gloveboxes.

Start Your Custom Project (RFP / Inquiry Template)

Copy the parameter matrix below, populate your target experimental requirements, and email it directly to our engineering desk at inquiry@atomfair.com:

1. Battery Chemistry & Electrode Type: [e.g., Cathode / High-Nickel NCM811, or Anode / Hard Carbon] 2. Active Material Source: [Customer-Supplied Proprietary Powder OR Atomfair Full-Turnkey Sourced] 3. Coating Configuration: [Single-Sided Flat Sheet / Pre-Punched Coin Discs / Double-Sided Continuous Roll / Double-Sided Intermittent Stripe with Tabs] 4. Target Loading Level: [Ultra-Low Loading (3-8 mg/cm²) / Standard Loading (10-25 mg/cm²) / High-Capacity Thick Electrode (>30 mg/cm²)] 5. Current Collector Substrate: [e.g., 13 μm Carbon-coated Al foil / 8 μm Cu foil] 6. Coating Process Mode: [Wet Continuous / Wet Intermittent Stripe / Solvent-Free Dry PTFE Calendered] 7. Calendering Specification: [Target Thickness (μm), Compacted Density (g/cm³), or Porosity (%)] 8. Target Order Volume: [e.g., 100 punched discs / 10 meters pilot roll / 100+ meters production roll] 9. Downstream Services Required: [Electrode Slitting / CR2032 Coin Cell Assembly / Pouch Cell Assembly / EIS Testing / None]

Related Battery Research Resources

Research Objective Atomfair Platform Resource Integration Context
Standard Coated Electrodes Battery Electrode Sheets Off-the-shelf reference cathode/anode sheets when custom fabrication is not required.
Active Powders & Precursors Cathode, Anode & Precursor Materials Battery-grade precursors and active powders available for turnkey coating formulations.
Dry Pouch Cells Platform Dry Pouch Cells Category Standardized unfilled dry pouch cells (NCM, LCO, LFP) for advanced electrolyte evaluation and validation.
Comprehensive Research Guide Battery Research & Materials Guide End-to-end technical guide connecting materials, coin/pouch fabrication, and electrochemical diagnostics.

Discuss Your Custom Electrode Project

To initiate a feasibility review, submit your active material specifications, desired loading range, current collector substrate, delivery dimensions, and validation requirements directly to our technical desk. Formal quotations, institutional Purchase Orders (POs), and vendor registration packets are handled promptly.

Direct Engineering & RFQ Inquiries: inquiry@atomfair.com

Note: All custom coating projects are evaluated for research-scale feasibility. Specific material compatibility, dry/wet yield limits, lead times, and binding quotations depend on the confirmed final engineering scope.