Celgard LLC


13800 South Lakes Dr
28273 Charlotte
United States

Production in:

United States




Company profile

A global leader in the development and production of high-performance membrane separator technology, Celgard has long delivered highly-engineered products with proven quality and performance. Our new RespiGard™ and RespiShield™ membranes are no exception.

Waterproof and breathable. Quiet and soft. RespiGard™ is a unique, lightweight membrane designed for outdoor apparel. Smooth, uniform pores are too small for water to penetrate while high porosity allows for airflow and moisture evaporation. And it’s eco-friendly.

Barrier protection and breathable. Lightweight and quiet. RespiShield™ is the optimal barrier shield in viral and synthetic blood protection film used in medical personal protective equipment (PPE). And it’s eco-friendly, too.
Designed by leveraging Celgard’s technical capabilities and the unique polyolefin molecular properties created by its patented manufacturing process, RespiGard™ and RespiShield™ offer lightweight and quiet protection without sacrificing comfort and safety.

With more than 45 years of market-leading research, development and manufacturing, Celgard continues to deliver superior performing products.

Celgard also specializes in coated and uncoated dry-process microporous membranes used as
separators that are a major component of lithium-ion batteries. Celgard's battery separator
technology is important to the performance of rechargeable and disposable lithium-ion batteries for electric drive vehicles (EDVs), energy storage systems (ESS) and other applications.

Celgard, LLC is a wholly-owned subsidiary of Polypore International, LP, an Asahi Kasei Company.

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