Celgard
Plastics ManufacturingNorth Carolina, United States201-500 Employees
Celgard, LLC operates in plastics manufacturing as a supplier of materials for lithium batteries, emphasizing strong performance and reliable supply. It is based in Charlotte, North Carolina, and functions as a subsidiary of Polypore International, LLC. The company serves a global customer base across industries that rely on advanced battery technology, including aviation, data centers, telecom, energy infrastructure, and EV charging. In 2023, Celgard expanded its Charlotte manufacturing facility, generating around 100 new jobs. In May 2026, the company expanded facilities to Concord, North Carolina, adding coating capabilities to mark the site's 15th anniversary.