CELGARD LLC

CELGARD LLC specializes in the manufacturing of advanced polymeric separator membranes used in lithium-ion batteries, serving critical applications in energy storage, electric vehicles, and aerospace systems. Their technical expertise lies in precision extrusion, microporous film fabrication, and surface modification technologies that enhance ionic conductivity, thermal stability, and safety performance in high-energy-density battery cells. The company’s core differentiators include proprietary coating processes, tight dimensional tolerances, and material science innovations that enable consistent performance under extreme operating conditions. Their production capabilities support mission-critical components for defense, industrial, and commercial battery systems requiring rigorous quality control and repeatability. Award history is not available to confirm specific agency engagements, so no definitive patterns of government partnerships can be inferred from the provided data. Similarly, without recent contract awards or agency-specific performance records, it is not possible to identify which federal entities rely on their products or the nature of any government procurement relationships. The primary NAICS code 326113 reflects classification under Plastic Film and Sheet Manufacturing, which in practice means CELGARD operates in the advanced materials sector, producing engineered polymer films for electrochemical systems. Their market positioning centers on high-performance, low-defect separator films used in next-generation battery chemistries, with vertical specialization in energy storage and electrified transportation markets. CELGARD LLC is structured as a limited liability company (2L) with its principal operations based in Charlotte, North Carolina. The company holds no government certifications, and its market presence is defined by its manufacturing expertise rather than formal socio-economic designations. Its geographic footprint is focused on its production facility, supporting both commercial and potential government supply chains through precision materials engineering.