Energy Storage Media

High Speed, High-Resolution Inspection, Measurement and Information

Ensuring High Production, Yields and Quality

Energy Storage Media Production Solutions & Turnkey Systems

Energy storage media production requires high-speed, high resolution, 100% automatic energy storage media inspection for critical defects and physical measurements.  Dark Field has developed and proven the most advanced energy storage defect detection and inspection/measurement systems in the world for Li-Ion production – defect detection and feature measurements/position for RTR Jelly Roll and Sheet processes.

Energy Storage Production Solutions

  • Copper and Aluminum Foil Inspection

  • Electrode Coating, Compression & Drying - Inspection & Measurement

  • Slitting & Punching – Inspection & Measurement

  • Membrane Separator Inspection

  • Unit Cell Assembly Inspection and Measurement

  • Turnkey Solutions

  • Mapping, Reporting, Warnings and Trends

Dark Field Technologies

Unique Li-Ion Inspection and Measurement Technologies


  • Li-Ion Application-Specific Design: Dark Field brightfield and darkfield Solid State Laser Reflection (SSLR) scanners, designed specifically for Li-Ion applications deliver unmatched foil, separator, coating and converting defect detection while generating real time alarms and alerts for defects and measurements which are outside the LCL and UCL.
  • Superior detection: The ONLY system that uses lasers and cameras together (SSLR). Light interacts with the defect two times for enhanced detection. Darkfield and brightfield designs.
  • Compact design: This is the simplest system to install, minimum installation envelope and does not require shrouding; easy line access is ensured. Scanners can be mounted on a moving sled.
  • Maximize information. Customer-specific trends and reports: Customized for each installation, trends/reports are generated from the integrated SQL Server. Information, not just data. Customized Maps, Alarms, trends and reports assure that maximum information is delivered by the system, not just data and images. Dedicated SQL server means no response delays or system crashes.
  • Self-Aligning, no maintenance optical system: SSLR is the only self-aligning system in the world; SSLR never needs to be tuned. No more missed defects and false hits. This is critically important for critical Li-Ion reflection operations.
  • Modular design – simple upgrade path: Dark Field systems are completely modular energy storage turnkey systems. This means that scanner design and electronic processing modules are optimized for each application. Optics and processing modules can be specified and upgraded independently.
  • Year One System Support: Dark Field engineers provide unlimited support via telephone, VPN and applications lab support for twelve months.

Your Partner For Complete Inspection & Metrology Solutions, From Product Development Through Production

Contract Inspection

Contract Inspection allows your team to deploy Dark Field’s inspection expertise even in the early days of product and process development.

R&D Tabletop Systems

Turnkey tabletop inspection systems allow pilot lines, Labs and R&D operations to start using SSLR technology early in the product/process development. Systems are modular and may be repurposed to the production line in the future. This means that the Lab or Pilot Line results are directly transferrable to Production.

Solid State Laser Reflection (SSLR) Systems for Pilot Lines and Production

The world’s most advanced technology solution for finding defects and taking measurements in RTR, Sheet and Wafer Production. On-line defect detection to 1µm. Achieve greater throughput, improved quality, minimize scrap, eliminate manual labor, and improve costs – concurrently.

Turnkey Systems

New processes and pilot plants sometimes require a stand-alone, special turnkey system. Dark Field turnkey systems deliver recipe-based defect detection and metrology for all process operations. Systems include XYZ stages and requisite safety interlocks and controls. This system may later be repurposed for Production.

Future Upgrades

As processes and products change or evolve, Dark Field systems may be upgraded for wider and faster operations, greater system resolution and customized software. Dark Field systems are completely modular so they can be upgraded in the field.

Contact Dark Field